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-rw-r--r--sound/soc/fsl/Kconfig32
-rw-r--r--sound/soc/fsl/Makefile6
-rw-r--r--sound/soc/fsl/fsl-asoc-card.c17
-rw-r--r--sound/soc/fsl/fsl_asrc.c59
-rw-r--r--sound/soc/fsl/fsl_asrc_dma.c5
-rw-r--r--sound/soc/fsl/fsl_aud2htx.c4
-rw-r--r--sound/soc/fsl/fsl_audmix.c3
-rw-r--r--sound/soc/fsl/fsl_dma.c3
-rw-r--r--sound/soc/fsl/fsl_easrc.c13
-rw-r--r--sound/soc/fsl/fsl_esai.c50
-rw-r--r--sound/soc/fsl/fsl_micfil.c27
-rw-r--r--sound/soc/fsl/fsl_rpmsg.c279
-rw-r--r--sound/soc/fsl/fsl_rpmsg.h35
-rw-r--r--sound/soc/fsl/fsl_sai.c62
-rw-r--r--sound/soc/fsl/fsl_sai.h4
-rw-r--r--sound/soc/fsl/fsl_spdif.c33
-rw-r--r--sound/soc/fsl/fsl_ssi.c7
-rw-r--r--sound/soc/fsl/fsl_xcvr.c19
-rw-r--r--sound/soc/fsl/imx-audio-rpmsg.c140
-rw-r--r--sound/soc/fsl/imx-hdmi.c5
-rw-r--r--sound/soc/fsl/imx-pcm-rpmsg.c918
-rw-r--r--sound/soc/fsl/imx-pcm-rpmsg.h512
-rw-r--r--sound/soc/fsl/imx-rpmsg.c150
-rw-r--r--sound/soc/fsl/mpc5200_dma.c2
-rw-r--r--sound/soc/fsl/mpc8610_hpcd.c2
-rw-r--r--sound/soc/fsl/p1022_ds.c2
26 files changed, 2267 insertions, 122 deletions
diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig
index d7f30036d434..0917d65d6921 100644
--- a/sound/soc/fsl/Kconfig
+++ b/sound/soc/fsl/Kconfig
@@ -115,10 +115,29 @@ config SND_SOC_FSL_AUD2HTX
config SND_SOC_FSL_UTILS
tristate
+config SND_SOC_FSL_RPMSG
+ tristate "NXP Audio Base On RPMSG support"
+ depends on COMMON_CLK
+ depends on RPMSG
+ select SND_SOC_IMX_RPMSG if SND_IMX_SOC != n
+ help
+ Say Y if you want to add rpmsg audio support for the Freescale CPUs.
+ This option is only useful for out-of-tree drivers since
+ in-tree drivers select it automatically.
+
config SND_SOC_IMX_PCM_DMA
tristate
select SND_SOC_GENERIC_DMAENGINE_PCM
+config SND_SOC_IMX_AUDIO_RPMSG
+ tristate
+ depends on RPMSG
+
+config SND_SOC_IMX_PCM_RPMSG
+ tristate
+ depends on SND_SOC_IMX_AUDIO_RPMSG
+ select SND_SOC_GENERIC_DMAENGINE_PCM
+
config SND_SOC_IMX_AUDMUX
tristate "Digital Audio Mux module support"
help
@@ -291,6 +310,8 @@ config SND_SOC_FSL_ASOC_CARD
select SND_SOC_FSL_ESAI
select SND_SOC_FSL_SAI
select SND_SOC_FSL_SSI
+ select SND_SOC_WM8994
+ select MFD_WM8994
help
ALSA SoC Audio support with ASRC feature for Freescale SoCs that have
ESAI/SAI/SSI and connect with external CODECs such as WM8962, CS42888,
@@ -318,6 +339,17 @@ config SND_SOC_IMX_HDMI
Say Y if you want to add support for SoC audio on an i.MX board with
IMX HDMI.
+config SND_SOC_IMX_RPMSG
+ tristate "SoC Audio support for i.MX boards with rpmsg"
+ depends on RPMSG
+ select SND_SOC_IMX_PCM_RPMSG
+ select SND_SOC_IMX_AUDIO_RPMSG
+ help
+ SoC Audio support for i.MX boards with rpmsg.
+ There should be rpmsg devices defined in other core (M core)
+ Say Y if you want to add support for SoC audio on an i.MX board with
+ a rpmsg devices.
+
endif # SND_IMX_SOC
endmenu
diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile
index 8c5fa8a859c0..f146ce464acd 100644
--- a/sound/soc/fsl/Makefile
+++ b/sound/soc/fsl/Makefile
@@ -27,6 +27,7 @@ snd-soc-fsl-mqs-objs := fsl_mqs.o
snd-soc-fsl-easrc-objs := fsl_easrc.o
snd-soc-fsl-xcvr-objs := fsl_xcvr.o
snd-soc-fsl-aud2htx-objs := fsl_aud2htx.o
+snd-soc-fsl-rpmsg-objs := fsl_rpmsg.o
obj-$(CONFIG_SND_SOC_FSL_AUDMIX) += snd-soc-fsl-audmix.o
obj-$(CONFIG_SND_SOC_FSL_ASOC_CARD) += snd-soc-fsl-asoc-card.o
@@ -42,6 +43,7 @@ obj-$(CONFIG_SND_SOC_FSL_EASRC) += snd-soc-fsl-easrc.o
obj-$(CONFIG_SND_SOC_POWERPC_DMA) += snd-soc-fsl-dma.o
obj-$(CONFIG_SND_SOC_FSL_XCVR) += snd-soc-fsl-xcvr.o
obj-$(CONFIG_SND_SOC_FSL_AUD2HTX) += snd-soc-fsl-aud2htx.o
+obj-$(CONFIG_SND_SOC_FSL_RPMSG) += snd-soc-fsl-rpmsg.o
# MPC5200 Platform Support
obj-$(CONFIG_SND_MPC52xx_DMA) += mpc5200_dma.o
@@ -58,6 +60,8 @@ obj-$(CONFIG_SND_SOC_IMX_AUDMUX) += snd-soc-imx-audmux.o
obj-$(CONFIG_SND_SOC_IMX_PCM_FIQ) += imx-pcm-fiq.o
obj-$(CONFIG_SND_SOC_IMX_PCM_DMA) += imx-pcm-dma.o
+obj-$(CONFIG_SND_SOC_IMX_AUDIO_RPMSG) += imx-audio-rpmsg.o
+obj-$(CONFIG_SND_SOC_IMX_PCM_RPMSG) += imx-pcm-rpmsg.o
# i.MX Machine Support
snd-soc-eukrea-tlv320-objs := eukrea-tlv320.o
@@ -66,6 +70,7 @@ snd-soc-imx-sgtl5000-objs := imx-sgtl5000.o
snd-soc-imx-spdif-objs := imx-spdif.o
snd-soc-imx-audmix-objs := imx-audmix.o
snd-soc-imx-hdmi-objs := imx-hdmi.o
+snd-soc-imx-rpmsg-objs := imx-rpmsg.o
obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o
obj-$(CONFIG_SND_SOC_IMX_ES8328) += snd-soc-imx-es8328.o
@@ -73,3 +78,4 @@ obj-$(CONFIG_SND_SOC_IMX_SGTL5000) += snd-soc-imx-sgtl5000.o
obj-$(CONFIG_SND_SOC_IMX_SPDIF) += snd-soc-imx-spdif.o
obj-$(CONFIG_SND_SOC_IMX_AUDMIX) += snd-soc-imx-audmix.o
obj-$(CONFIG_SND_SOC_IMX_HDMI) += snd-soc-imx-hdmi.o
+obj-$(CONFIG_SND_SOC_IMX_RPMSG) += snd-soc-imx-rpmsg.o
diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
index f62f81ceab0d..c62bfd1c3ac7 100644
--- a/sound/soc/fsl/fsl-asoc-card.c
+++ b/sound/soc/fsl/fsl-asoc-card.c
@@ -25,6 +25,7 @@
#include "../codecs/sgtl5000.h"
#include "../codecs/wm8962.h"
#include "../codecs/wm8960.h"
+#include "../codecs/wm8994.h"
#define CS427x_SYSCLK_MCLK 0
@@ -37,12 +38,14 @@
/**
* struct codec_priv - CODEC private data
* @mclk_freq: Clock rate of MCLK
+ * @free_freq: Clock rate of MCLK for hw_free()
* @mclk_id: MCLK (or main clock) id for set_sysclk()
* @fll_id: FLL (or secordary clock) id for set_sysclk()
* @pll_id: PLL id for set_pll()
*/
struct codec_priv {
unsigned long mclk_freq;
+ unsigned long free_freq;
u32 mclk_id;
u32 fll_id;
u32 pll_id;
@@ -235,10 +238,10 @@ static int fsl_asoc_card_hw_free(struct snd_pcm_substream *substream)
priv->streams &= ~BIT(substream->stream);
if (!priv->streams && codec_priv->pll_id && codec_priv->fll_id) {
- /* Force freq to be 0 to avoid error message in codec */
+ /* Force freq to be free_freq to avoid error message in codec */
ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0),
codec_priv->mclk_id,
- 0,
+ codec_priv->free_freq,
SND_SOC_CLOCK_IN);
if (ret) {
dev_err(dev, "failed to switch away from FLL: %d\n", ret);
@@ -665,6 +668,15 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
priv->card.dapm_routes = audio_map_rx;
priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_rx);
+ } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8958")) {
+ codec_dai_name = "wm8994-aif1";
+ priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
+ priv->codec_priv.mclk_id = WM8994_FLL_SRC_MCLK1;
+ priv->codec_priv.fll_id = WM8994_SYSCLK_FLL1;
+ priv->codec_priv.pll_id = WM8994_FLL1;
+ priv->codec_priv.free_freq = priv->codec_priv.mclk_freq;
+ priv->card.dapm_routes = NULL;
+ priv->card.num_dapm_routes = 0;
} else {
dev_err(&pdev->dev, "unknown Device Tree compatible\n");
ret = -EINVAL;
@@ -882,6 +894,7 @@ static const struct of_device_id fsl_asoc_card_dt_ids[] = {
{ .compatible = "fsl,imx-audio-mqs", },
{ .compatible = "fsl,imx-audio-wm8524", },
{ .compatible = "fsl,imx-audio-si476x", },
+ { .compatible = "fsl,imx-audio-wm8958", },
{}
};
MODULE_DEVICE_TABLE(of, fsl_asoc_card_dt_ids);
diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
index c325c984d165..0e1ad8efebd3 100644
--- a/sound/soc/fsl/fsl_asrc.c
+++ b/sound/soc/fsl/fsl_asrc.c
@@ -610,7 +610,7 @@ static void fsl_asrc_select_clk(struct fsl_asrc_priv *asrc_priv,
struct asrc_config *config = pair_priv->config;
int rate[2], select_clk[2]; /* Array size 2 means IN and OUT */
int clk_rate, clk_index;
- int i = 0, j = 0;
+ int i, j;
rate[IN] = in_rate;
rate[OUT] = out_rate;
@@ -1008,6 +1008,9 @@ static int fsl_asrc_get_fifo_addr(u8 dir, enum asrc_pair_index index)
return REG_ASRDx(dir, index);
}
+static int fsl_asrc_runtime_resume(struct device *dev);
+static int fsl_asrc_runtime_suspend(struct device *dev);
+
static int fsl_asrc_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@@ -1039,8 +1042,7 @@ static int fsl_asrc_probe(struct platform_device *pdev)
asrc->paddr = res->start;
- asrc->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "mem", regs,
- &fsl_asrc_regmap_config);
+ asrc->regmap = devm_regmap_init_mmio(&pdev->dev, regs, &fsl_asrc_regmap_config);
if (IS_ERR(asrc->regmap)) {
dev_err(&pdev->dev, "failed to init regmap\n");
return PTR_ERR(asrc->regmap);
@@ -1117,12 +1119,6 @@ static int fsl_asrc_probe(struct platform_device *pdev)
}
}
- ret = fsl_asrc_init(asrc);
- if (ret) {
- dev_err(&pdev->dev, "failed to init asrc %d\n", ret);
- return ret;
- }
-
asrc->channel_avail = 10;
ret = of_property_read_u32(np, "fsl,asrc-rate",
@@ -1161,21 +1157,56 @@ static int fsl_asrc_probe(struct platform_device *pdev)
}
platform_set_drvdata(pdev, asrc);
- pm_runtime_enable(&pdev->dev);
spin_lock_init(&asrc->lock);
- regcache_cache_only(asrc->regmap, true);
+ pm_runtime_enable(&pdev->dev);
+ if (!pm_runtime_enabled(&pdev->dev)) {
+ ret = fsl_asrc_runtime_resume(&pdev->dev);
+ if (ret)
+ goto err_pm_disable;
+ }
+
+ ret = pm_runtime_get_sync(&pdev->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(&pdev->dev);
+ goto err_pm_get_sync;
+ }
+
+ ret = fsl_asrc_init(asrc);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to init asrc %d\n", ret);
+ goto err_pm_get_sync;
+ }
+
+ ret = pm_runtime_put_sync(&pdev->dev);
+ if (ret < 0)
+ goto err_pm_get_sync;
ret = devm_snd_soc_register_component(&pdev->dev, &fsl_asrc_component,
&fsl_asrc_dai, 1);
if (ret) {
dev_err(&pdev->dev, "failed to register ASoC DAI\n");
- return ret;
+ goto err_pm_get_sync;
}
return 0;
+
+err_pm_get_sync:
+ if (!pm_runtime_status_suspended(&pdev->dev))
+ fsl_asrc_runtime_suspend(&pdev->dev);
+err_pm_disable:
+ pm_runtime_disable(&pdev->dev);
+ return ret;
+}
+
+static int fsl_asrc_remove(struct platform_device *pdev)
+{
+ pm_runtime_disable(&pdev->dev);
+ if (!pm_runtime_status_suspended(&pdev->dev))
+ fsl_asrc_runtime_suspend(&pdev->dev);
+
+ return 0;
}
-#ifdef CONFIG_PM
static int fsl_asrc_runtime_resume(struct device *dev)
{
struct fsl_asrc *asrc = dev_get_drvdata(dev);
@@ -1252,7 +1283,6 @@ static int fsl_asrc_runtime_suspend(struct device *dev)
return 0;
}
-#endif /* CONFIG_PM */
static const struct dev_pm_ops fsl_asrc_pm = {
SET_RUNTIME_PM_OPS(fsl_asrc_runtime_suspend, fsl_asrc_runtime_resume, NULL)
@@ -1291,6 +1321,7 @@ MODULE_DEVICE_TABLE(of, fsl_asrc_ids);
static struct platform_driver fsl_asrc_driver = {
.probe = fsl_asrc_probe,
+ .remove = fsl_asrc_remove,
.driver = {
.name = "fsl-asrc",
.of_match_table = fsl_asrc_ids,
diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
index 29f91cdecbc3..c313a26c8f95 100644
--- a/sound/soc/fsl/fsl_asrc_dma.c
+++ b/sound/soc/fsl/fsl_asrc_dma.c
@@ -141,6 +141,7 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component,
struct dma_slave_config config_fe, config_be;
enum asrc_pair_index index = pair->index;
struct device *dev = component->dev;
+ struct device_node *of_dma_node;
int stream = substream->stream;
struct imx_dma_data *tmp_data;
struct snd_soc_dpcm *dpcm;
@@ -231,8 +232,10 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component,
pair->dma_data.priority = tmp_data->priority;
dma_release_channel(tmp_chan);
+ of_dma_node = pair->dma_chan[!dir]->device->dev->of_node;
pair->dma_chan[dir] =
- dma_request_channel(mask, filter, &pair->dma_data);
+ __dma_request_channel(&mask, filter, &pair->dma_data,
+ of_dma_node);
pair->req_dma_chan = true;
} else {
pair->dma_chan[dir] = tmp_chan;
diff --git a/sound/soc/fsl/fsl_aud2htx.c b/sound/soc/fsl/fsl_aud2htx.c
index d70d5e75a30c..a328697511f7 100644
--- a/sound/soc/fsl/fsl_aud2htx.c
+++ b/sound/soc/fsl/fsl_aud2htx.c
@@ -198,10 +198,8 @@ static int fsl_aud2htx_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
regs = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(regs)) {
- dev_err(&pdev->dev, "failed ioremap\n");
+ if (IS_ERR(regs))
return PTR_ERR(regs);
- }
aud2htx->regmap = devm_regmap_init_mmio(&pdev->dev, regs,
&fsl_aud2htx_regmap_config);
diff --git a/sound/soc/fsl/fsl_audmix.c b/sound/soc/fsl/fsl_audmix.c
index 8dc44dec7956..f931288e256c 100644
--- a/sound/soc/fsl/fsl_audmix.c
+++ b/sound/soc/fsl/fsl_audmix.c
@@ -476,8 +476,7 @@ static int fsl_audmix_probe(struct platform_device *pdev)
if (IS_ERR(regs))
return PTR_ERR(regs);
- priv->regmap = devm_regmap_init_mmio_clk(dev, "ipg", regs,
- &fsl_audmix_regmap_config);
+ priv->regmap = devm_regmap_init_mmio(dev, regs, &fsl_audmix_regmap_config);
if (IS_ERR(priv->regmap)) {
dev_err(dev, "failed to init regmap\n");
return PTR_ERR(priv->regmap);
diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
index e0c39c5f4854..84bd8a5356eb 100644
--- a/sound/soc/fsl/fsl_dma.c
+++ b/sound/soc/fsl/fsl_dma.c
@@ -392,7 +392,6 @@ static int fsl_dma_open(struct snd_soc_component *component,
dma_addr_t ld_buf_phys;
u64 temp_link; /* Pointer to next link descriptor */
u32 mr;
- unsigned int channel;
int ret = 0;
unsigned int i;
@@ -408,8 +407,6 @@ static int fsl_dma_open(struct snd_soc_component *component,
return ret;
}
- channel = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1;
-
if (dma->assigned) {
dev_err(dev, "dma channel already assigned\n");
return -EBUSY;
diff --git a/sound/soc/fsl/fsl_easrc.c b/sound/soc/fsl/fsl_easrc.c
index 636a702f37a6..b1765c7d3bcd 100644
--- a/sound/soc/fsl/fsl_easrc.c
+++ b/sound/soc/fsl/fsl_easrc.c
@@ -380,7 +380,7 @@ static int fsl_easrc_resampler_config(struct fsl_asrc *easrc)
}
/**
- * Scale filter coefficients (64 bits float)
+ * fsl_easrc_normalize_filter - Scale filter coefficients (64 bits float)
* For input float32 normalized range (1.0,-1.0) -> output int[16,24,32]:
* scale it by multiplying filter coefficients by 2^31
* For input int[16, 24, 32] -> output float32
@@ -748,7 +748,7 @@ static int fsl_easrc_config_one_slot(struct fsl_asrc_pair *ctx,
{
struct fsl_asrc *easrc = ctx->asrc;
struct fsl_easrc_ctx_priv *ctx_priv = ctx->private;
- int st1_chanxexp, st1_mem_alloc = 0, st2_mem_alloc = 0;
+ int st1_chanxexp, st1_mem_alloc = 0, st2_mem_alloc;
unsigned int reg0, reg1, reg2, reg3;
unsigned int addr;
@@ -1328,7 +1328,7 @@ static int fsl_easrc_stop_context(struct fsl_asrc_pair *ctx)
{
struct fsl_asrc *easrc = ctx->asrc;
int val, i;
- int size = 0;
+ int size;
int retry = 200;
regmap_read(easrc->regmap, REG_EASRC_CC(ctx->index), &val);
@@ -1889,15 +1889,12 @@ static int fsl_easrc_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
regs = devm_ioremap_resource(dev, res);
- if (IS_ERR(regs)) {
- dev_err(&pdev->dev, "failed ioremap\n");
+ if (IS_ERR(regs))
return PTR_ERR(regs);
- }
easrc->paddr = res->start;
- easrc->regmap = devm_regmap_init_mmio_clk(dev, "mem", regs,
- &fsl_easrc_regmap_config);
+ easrc->regmap = devm_regmap_init_mmio(dev, regs, &fsl_easrc_regmap_config);
if (IS_ERR(easrc->regmap)) {
dev_err(dev, "failed to init regmap");
return PTR_ERR(easrc->regmap);
diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c
index a857a624864f..f356ae5925af 100644
--- a/sound/soc/fsl/fsl_esai.c
+++ b/sound/soc/fsl/fsl_esai.c
@@ -304,7 +304,7 @@ static int fsl_esai_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
if (IS_ERR(clksrc)) {
dev_err(dai->dev, "no assigned %s clock\n",
- clk_id % 2 ? "extal" : "fsys");
+ (clk_id % 2) ? "extal" : "fsys");
return PTR_ERR(clksrc);
}
clk_rate = clk_get_rate(clksrc);
@@ -947,6 +947,9 @@ static const struct regmap_config fsl_esai_regmap_config = {
.cache_type = REGCACHE_FLAT,
};
+static int fsl_esai_runtime_resume(struct device *dev);
+static int fsl_esai_runtime_suspend(struct device *dev);
+
static int fsl_esai_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@@ -971,8 +974,7 @@ static int fsl_esai_probe(struct platform_device *pdev)
if (IS_ERR(regs))
return PTR_ERR(regs);
- esai_priv->regmap = devm_regmap_init_mmio_clk(&pdev->dev,
- "core", regs, &fsl_esai_regmap_config);
+ esai_priv->regmap = devm_regmap_init_mmio(&pdev->dev, regs, &fsl_esai_regmap_config);
if (IS_ERR(esai_priv->regmap)) {
dev_err(&pdev->dev, "failed to init regmap: %ld\n",
PTR_ERR(esai_priv->regmap));
@@ -1041,11 +1043,23 @@ static int fsl_esai_probe(struct platform_device *pdev)
}
dev_set_drvdata(&pdev->dev, esai_priv);
-
spin_lock_init(&esai_priv->lock);
+ pm_runtime_enable(&pdev->dev);
+ if (!pm_runtime_enabled(&pdev->dev)) {
+ ret = fsl_esai_runtime_resume(&pdev->dev);
+ if (ret)
+ goto err_pm_disable;
+ }
+
+ ret = pm_runtime_get_sync(&pdev->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(&pdev->dev);
+ goto err_pm_get_sync;
+ }
+
ret = fsl_esai_hw_init(esai_priv);
if (ret)
- return ret;
+ goto err_pm_get_sync;
esai_priv->tx_mask = 0xFFFFFFFF;
esai_priv->rx_mask = 0xFFFFFFFF;
@@ -1056,24 +1070,33 @@ static int fsl_esai_probe(struct platform_device *pdev)
regmap_write(esai_priv->regmap, REG_ESAI_RSMA, 0);
regmap_write(esai_priv->regmap, REG_ESAI_RSMB, 0);
+ ret = pm_runtime_put_sync(&pdev->dev);
+ if (ret < 0)
+ goto err_pm_get_sync;
+
ret = devm_snd_soc_register_component(&pdev->dev, &fsl_esai_component,
&fsl_esai_dai, 1);
if (ret) {
dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
- return ret;
+ goto err_pm_get_sync;
}
INIT_WORK(&esai_priv->work, fsl_esai_hw_reset);
- pm_runtime_enable(&pdev->dev);
-
- regcache_cache_only(esai_priv->regmap, true);
-
ret = imx_pcm_dma_init(pdev, IMX_ESAI_DMABUF_SIZE);
- if (ret)
+ if (ret) {
dev_err(&pdev->dev, "failed to init imx pcm dma: %d\n", ret);
+ goto err_pm_get_sync;
+ }
return ret;
+
+err_pm_get_sync:
+ if (!pm_runtime_status_suspended(&pdev->dev))
+ fsl_esai_runtime_suspend(&pdev->dev);
+err_pm_disable:
+ pm_runtime_disable(&pdev->dev);
+ return ret;
}
static int fsl_esai_remove(struct platform_device *pdev)
@@ -1081,6 +1104,9 @@ static int fsl_esai_remove(struct platform_device *pdev)
struct fsl_esai *esai_priv = platform_get_drvdata(pdev);
pm_runtime_disable(&pdev->dev);
+ if (!pm_runtime_status_suspended(&pdev->dev))
+ fsl_esai_runtime_suspend(&pdev->dev);
+
cancel_work_sync(&esai_priv->work);
return 0;
@@ -1094,7 +1120,6 @@ static const struct of_device_id fsl_esai_dt_ids[] = {
};
MODULE_DEVICE_TABLE(of, fsl_esai_dt_ids);
-#ifdef CONFIG_PM
static int fsl_esai_runtime_resume(struct device *dev)
{
struct fsl_esai *esai = dev_get_drvdata(dev);
@@ -1162,7 +1187,6 @@ static int fsl_esai_runtime_suspend(struct device *dev)
return 0;
}
-#endif /* CONFIG_PM */
static const struct dev_pm_ops fsl_esai_pm_ops = {
SET_RUNTIME_PM_OPS(fsl_esai_runtime_suspend,
diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c
index 5935af2e5ff4..3cf789ed6cbe 100644
--- a/sound/soc/fsl/fsl_micfil.c
+++ b/sound/soc/fsl/fsl_micfil.c
@@ -31,6 +31,7 @@ struct fsl_micfil {
struct platform_device *pdev;
struct regmap *regmap;
const struct fsl_micfil_soc_data *soc;
+ struct clk *busclk;
struct clk *mclk;
struct snd_dmaengine_dai_dma_data dma_params_rx;
unsigned int dataline;
@@ -423,8 +424,6 @@ static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai)
return ret;
}
- snd_soc_dai_set_drvdata(cpu_dai, micfil);
-
return 0;
}
@@ -662,16 +661,22 @@ static int fsl_micfil_probe(struct platform_device *pdev)
return PTR_ERR(micfil->mclk);
}
+ micfil->busclk = devm_clk_get(&pdev->dev, "ipg_clk");
+ if (IS_ERR(micfil->busclk)) {
+ dev_err(&pdev->dev, "failed to get ipg clock: %ld\n",
+ PTR_ERR(micfil->busclk));
+ return PTR_ERR(micfil->busclk);
+ }
+
/* init regmap */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(regs))
return PTR_ERR(regs);
- micfil->regmap = devm_regmap_init_mmio_clk(&pdev->dev,
- "ipg_clk",
- regs,
- &fsl_micfil_regmap_config);
+ micfil->regmap = devm_regmap_init_mmio(&pdev->dev,
+ regs,
+ &fsl_micfil_regmap_config);
if (IS_ERR(micfil->regmap)) {
dev_err(&pdev->dev, "failed to init MICFIL regmap: %ld\n",
PTR_ERR(micfil->regmap));
@@ -731,6 +736,7 @@ static int fsl_micfil_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, micfil);
pm_runtime_enable(&pdev->dev);
+ regcache_cache_only(micfil->regmap, true);
ret = devm_snd_soc_register_component(&pdev->dev, &fsl_micfil_component,
&fsl_micfil_dai, 1);
@@ -754,6 +760,7 @@ static int __maybe_unused fsl_micfil_runtime_suspend(struct device *dev)
regcache_cache_only(micfil->regmap, true);
clk_disable_unprepare(micfil->mclk);
+ clk_disable_unprepare(micfil->busclk);
return 0;
}
@@ -763,10 +770,16 @@ static int __maybe_unused fsl_micfil_runtime_resume(struct device *dev)
struct fsl_micfil *micfil = dev_get_drvdata(dev);
int ret;
- ret = clk_prepare_enable(micfil->mclk);
+ ret = clk_prepare_enable(micfil->busclk);
if (ret < 0)
return ret;
+ ret = clk_prepare_enable(micfil->mclk);
+ if (ret < 0) {
+ clk_disable_unprepare(micfil->busclk);
+ return ret;
+ }
+
regcache_cache_only(micfil->regmap, false);
regcache_mark_dirty(micfil->regmap);
regcache_sync(micfil->regmap);
diff --git a/sound/soc/fsl/fsl_rpmsg.c b/sound/soc/fsl/fsl_rpmsg.c
new file mode 100644
index 000000000000..ea5c973e2e84
--- /dev/null
+++ b/sound/soc/fsl/fsl_rpmsg.c
@@ -0,0 +1,279 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2018-2021 NXP
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/dmaengine.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/pm_runtime.h>
+#include <linux/rpmsg.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+
+#include "fsl_rpmsg.h"
+#include "imx-pcm.h"
+
+#define FSL_RPMSG_RATES (SNDRV_PCM_RATE_8000 | \
+ SNDRV_PCM_RATE_16000 | \
+ SNDRV_PCM_RATE_48000)
+#define FSL_RPMSG_FORMATS SNDRV_PCM_FMTBIT_S16_LE
+
+/* 192kHz/32bit/2ch/60s size is 0x574e00 */
+#define LPA_LARGE_BUFFER_SIZE (0x6000000)
+
+static const unsigned int fsl_rpmsg_rates[] = {
+ 8000, 11025, 16000, 22050, 44100,
+ 32000, 48000, 96000, 88200, 176400, 192000,
+ 352800, 384000, 705600, 768000, 1411200, 2822400,
+};
+
+static const struct snd_pcm_hw_constraint_list fsl_rpmsg_rate_constraints = {
+ .count = ARRAY_SIZE(fsl_rpmsg_rates),
+ .list = fsl_rpmsg_rates,
+};
+
+static int fsl_rpmsg_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct fsl_rpmsg *rpmsg = snd_soc_dai_get_drvdata(dai);
+ struct clk *p = rpmsg->mclk, *pll = NULL, *npll = NULL;
+ u64 rate = params_rate(params);
+ int ret = 0;
+
+ /* Get current pll parent */
+ while (p && rpmsg->pll8k && rpmsg->pll11k) {
+ struct clk *pp = clk_get_parent(p);
+
+ if (clk_is_match(pp, rpmsg->pll8k) ||
+ clk_is_match(pp, rpmsg->pll11k)) {
+ pll = pp;
+ break;
+ }
+ p = pp;
+ }
+
+ /* Switch to another pll parent if needed. */
+ if (pll) {
+ npll = (do_div(rate, 8000) ? rpmsg->pll11k : rpmsg->pll8k);
+ if (!clk_is_match(pll, npll)) {
+ ret = clk_set_parent(p, npll);
+ if (ret < 0)
+ dev_warn(dai->dev, "failed to set parent %s: %d\n",
+ __clk_get_name(npll), ret);
+ }
+ }
+
+ if (!(rpmsg->mclk_streams & BIT(substream->stream))) {
+ ret = clk_prepare_enable(rpmsg->mclk);
+ if (ret) {
+ dev_err(dai->dev, "failed to enable mclk: %d\n", ret);
+ return ret;
+ }
+
+ rpmsg->mclk_streams |= BIT(substream->stream);
+ }
+
+ return ret;
+}
+
+static int fsl_rpmsg_hw_free(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct fsl_rpmsg *rpmsg = snd_soc_dai_get_drvdata(dai);
+
+ if (rpmsg->mclk_streams & BIT(substream->stream)) {
+ clk_disable_unprepare(rpmsg->mclk);
+ rpmsg->mclk_streams &= ~BIT(substream->stream);
+ }
+
+ return 0;
+}
+
+static int fsl_rpmsg_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *cpu_dai)
+{
+ int ret;
+
+ ret = snd_pcm_hw_constraint_list(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ &fsl_rpmsg_rate_constraints);
+
+ return ret;
+}
+
+static const struct snd_soc_dai_ops fsl_rpmsg_dai_ops = {
+ .startup = fsl_rpmsg_startup,
+ .hw_params = fsl_rpmsg_hw_params,
+ .hw_free = fsl_rpmsg_hw_free,
+};
+
+static struct snd_soc_dai_driver fsl_rpmsg_dai = {
+ .playback = {
+ .stream_name = "CPU-Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_KNOT,
+ .formats = FSL_RPMSG_FORMATS,
+ },
+ .capture = {
+ .stream_name = "CPU-Capture",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_KNOT,
+ .formats = FSL_RPMSG_FORMATS,
+ },
+ .symmetric_rate = 1,
+ .symmetric_channels = 1,
+ .symmetric_sample_bits = 1,
+ .ops = &fsl_rpmsg_dai_ops,
+};
+
+static const struct snd_soc_component_driver fsl_component = {
+ .name = "fsl-rpmsg",
+};
+
+static const struct of_device_id fsl_rpmsg_ids[] = {
+ { .compatible = "fsl,imx7ulp-rpmsg-audio"},
+ { .compatible = "fsl,imx8mm-rpmsg-audio"},
+ { .compatible = "fsl,imx8mn-rpmsg-audio"},
+ { .compatible = "fsl,imx8mp-rpmsg-audio"},
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, fsl_rpmsg_ids);
+
+static int fsl_rpmsg_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct fsl_rpmsg *rpmsg;
+ int ret;
+
+ rpmsg = devm_kzalloc(&pdev->dev, sizeof(struct fsl_rpmsg), GFP_KERNEL);
+ if (!rpmsg)
+ return -ENOMEM;
+
+ if (of_property_read_bool(np, "fsl,enable-lpa")) {
+ rpmsg->enable_lpa = 1;
+ rpmsg->buffer_size = LPA_LARGE_BUFFER_SIZE;
+ } else {
+ rpmsg->buffer_size = IMX_DEFAULT_DMABUF_SIZE;
+ }
+
+ /* Get the optional clocks */
+ rpmsg->ipg = devm_clk_get(&pdev->dev, "ipg");
+ if (IS_ERR(rpmsg->ipg))
+ rpmsg->ipg = NULL;
+
+ rpmsg->mclk = devm_clk_get(&pdev->dev, "mclk");
+ if (IS_ERR(rpmsg->mclk))
+ rpmsg->mclk = NULL;
+
+ rpmsg->dma = devm_clk_get(&pdev->dev, "dma");
+ if (IS_ERR(rpmsg->dma))
+ rpmsg->dma = NULL;
+
+ rpmsg->pll8k = devm_clk_get(&pdev->dev, "pll8k");
+ if (IS_ERR(rpmsg->pll8k))
+ rpmsg->pll8k = NULL;
+
+ rpmsg->pll11k = devm_clk_get(&pdev->dev, "pll11k");
+ if (IS_ERR(rpmsg->pll11k))
+ rpmsg->pll11k = NULL;
+
+ platform_set_drvdata(pdev, rpmsg);
+ pm_runtime_enable(&pdev->dev);
+
+ ret = devm_snd_soc_register_component(&pdev->dev, &fsl_component,
+ &fsl_rpmsg_dai, 1);
+ if (ret)
+ return ret;
+
+ rpmsg->card_pdev = platform_device_register_data(&pdev->dev,
+ "imx-audio-rpmsg",
+ PLATFORM_DEVID_NONE,
+ NULL,
+ 0);
+ if (IS_ERR(rpmsg->card_pdev)) {
+ dev_err(&pdev->dev, "failed to register rpmsg card\n");
+ ret = PTR_ERR(rpmsg->card_pdev);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int fsl_rpmsg_remove(struct platform_device *pdev)
+{
+ struct fsl_rpmsg *rpmsg = platform_get_drvdata(pdev);
+
+ if (rpmsg->card_pdev)
+ platform_device_unregister(rpmsg->card_pdev);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int fsl_rpmsg_runtime_resume(struct device *dev)
+{
+ struct fsl_rpmsg *rpmsg = dev_get_drvdata(dev);
+ int ret;
+
+ ret = clk_prepare_enable(rpmsg->ipg);
+ if (ret) {
+ dev_err(dev, "failed to enable ipg clock: %d\n", ret);
+ goto ipg_err;
+ }
+
+ ret = clk_prepare_enable(rpmsg->dma);
+ if (ret) {
+ dev_err(dev, "Failed to enable dma clock %d\n", ret);
+ goto dma_err;
+ }
+
+ return 0;
+
+dma_err:
+ clk_disable_unprepare(rpmsg->ipg);
+ipg_err:
+ return ret;
+}
+
+static int fsl_rpmsg_runtime_suspend(struct device *dev)
+{
+ struct fsl_rpmsg *rpmsg = dev_get_drvdata(dev);
+
+ clk_disable_unprepare(rpmsg->dma);
+ clk_disable_unprepare(rpmsg->ipg);
+
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops fsl_rpmsg_pm_ops = {
+ SET_RUNTIME_PM_OPS(fsl_rpmsg_runtime_suspend,
+ fsl_rpmsg_runtime_resume,
+ NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
+};
+
+static struct platform_driver fsl_rpmsg_driver = {
+ .probe = fsl_rpmsg_probe,
+ .remove = fsl_rpmsg_remove,
+ .driver = {
+ .name = "fsl_rpmsg",
+ .pm = &fsl_rpmsg_pm_ops,
+ .of_match_table = fsl_rpmsg_ids,
+ },
+};
+module_platform_driver(fsl_rpmsg_driver);
+
+MODULE_DESCRIPTION("Freescale SoC Audio PRMSG CPU Interface");
+MODULE_AUTHOR("Shengjiu Wang <shengjiu.wang@nxp.com>");
+MODULE_ALIAS("platform:fsl_rpmsg");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/fsl/fsl_rpmsg.h b/sound/soc/fsl/fsl_rpmsg.h
new file mode 100644
index 000000000000..4f5b49eb18d8
--- /dev/null
+++ b/sound/soc/fsl/fsl_rpmsg.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2017-2021 NXP
+ */
+
+#ifndef __FSL_RPMSG_H
+#define __FSL_RPMSG_H
+
+/*
+ * struct fsl_rpmsg - rpmsg private data
+ *
+ * @ipg: ipg clock for cpu dai (SAI)
+ * @mclk: master clock for cpu dai (SAI)
+ * @dma: clock for dma device
+ * @pll8k: parent clock for multiple of 8kHz frequency
+ * @pll11k: parent clock for multiple of 11kHz frequency
+ * @card_pdev: Platform_device pointer to register a sound card
+ * @mclk_streams: Active streams that are using baudclk
+ * @force_lpa: force enable low power audio routine if condition satisfy
+ * @enable_lpa: enable low power audio routine according to dts setting
+ * @buffer_size: pre allocated dma buffer size
+ */
+struct fsl_rpmsg {
+ struct clk *ipg;
+ struct clk *mclk;
+ struct clk *dma;
+ struct clk *pll8k;
+ struct clk *pll11k;
+ struct platform_device *card_pdev;
+ unsigned int mclk_streams;
+ int force_lpa;
+ int enable_lpa;
+ int buffer_size;
+};
+#endif /* __FSL_RPMSG_H */
diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index 5e65b456d3e2..407a45e48eee 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -10,6 +10,7 @@
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
+#include <linux/pm_qos.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/slab.h>
@@ -727,8 +728,6 @@ static int fsl_sai_dai_probe(struct snd_soc_dai *cpu_dai)
snd_soc_dai_init_dma_data(cpu_dai, &sai->dma_params_tx,
&sai->dma_params_rx);
- snd_soc_dai_set_drvdata(cpu_dai, sai);
-
return 0;
}
@@ -995,6 +994,9 @@ static int fsl_sai_check_version(struct device *dev)
return 0;
}
+static int fsl_sai_runtime_suspend(struct device *dev);
+static int fsl_sai_runtime_resume(struct device *dev);
+
static int fsl_sai_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@@ -1027,24 +1029,21 @@ static int fsl_sai_probe(struct platform_device *pdev)
ARRAY_SIZE(fsl_sai_reg_defaults_ofs8);
}
- sai->regmap = devm_regmap_init_mmio_clk(&pdev->dev,
- "bus", base, &fsl_sai_regmap_config);
-
- /* Compatible with old DTB cases */
- if (IS_ERR(sai->regmap) && PTR_ERR(sai->regmap) != -EPROBE_DEFER)
- sai->regmap = devm_regmap_init_mmio_clk(&pdev->dev,
- "sai", base, &fsl_sai_regmap_config);
+ sai->regmap = devm_regmap_init_mmio(&pdev->dev, base, &fsl_sai_regmap_config);
if (IS_ERR(sai->regmap)) {
dev_err(&pdev->dev, "regmap init failed\n");
return PTR_ERR(sai->regmap);
}
- /* No error out for old DTB cases but only mark the clock NULL */
sai->bus_clk = devm_clk_get(&pdev->dev, "bus");
+ /* Compatible with old DTB cases */
+ if (IS_ERR(sai->bus_clk) && PTR_ERR(sai->bus_clk) != -EPROBE_DEFER)
+ sai->bus_clk = devm_clk_get(&pdev->dev, "sai");
if (IS_ERR(sai->bus_clk)) {
dev_err(&pdev->dev, "failed to get bus clock: %ld\n",
PTR_ERR(sai->bus_clk));
- sai->bus_clk = NULL;
+ /* -EPROBE_DEFER */
+ return PTR_ERR(sai->bus_clk);
}
for (i = 1; i < FSL_SAI_MCLK_MAX; i++) {
@@ -1125,6 +1124,18 @@ static int fsl_sai_probe(struct platform_device *pdev)
sai->dma_params_tx.maxburst = FSL_SAI_MAXBURST_TX;
platform_set_drvdata(pdev, sai);
+ pm_runtime_enable(&pdev->dev);
+ if (!pm_runtime_enabled(&pdev->dev)) {
+ ret = fsl_sai_runtime_resume(&pdev->dev);
+ if (ret)
+ goto err_pm_disable;
+ }
+
+ ret = pm_runtime_get_sync(&pdev->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(&pdev->dev);
+ goto err_pm_get_sync;
+ }
/* Get sai version */
ret = fsl_sai_check_version(&pdev->dev);
@@ -1138,26 +1149,30 @@ static int fsl_sai_probe(struct platform_device *pdev)
FSL_SAI_MCTL_MCLK_EN, FSL_SAI_MCTL_MCLK_EN);
}
- pm_runtime_enable(&pdev->dev);
- regcache_cache_only(sai->regmap, true);
+ ret = pm_runtime_put_sync(&pdev->dev);
+ if (ret < 0)
+ goto err_pm_get_sync;
ret = devm_snd_soc_register_component(&pdev->dev, &fsl_component,
&sai->cpu_dai_drv, 1);
if (ret)
- goto err_pm_disable;
+ goto err_pm_get_sync;
if (sai->soc_data->use_imx_pcm) {
ret = imx_pcm_dma_init(pdev, IMX_SAI_DMABUF_SIZE);
if (ret)
- goto err_pm_disable;
+ goto err_pm_get_sync;
} else {
ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
if (ret)
- goto err_pm_disable;
+ goto err_pm_get_sync;
}
return ret;
+err_pm_get_sync:
+ if (!pm_runtime_status_suspended(&pdev->dev))
+ fsl_sai_runtime_suspend(&pdev->dev);
err_pm_disable:
pm_runtime_disable(&pdev->dev);
@@ -1167,6 +1182,8 @@ err_pm_disable:
static int fsl_sai_remove(struct platform_device *pdev)
{
pm_runtime_disable(&pdev->dev);
+ if (!pm_runtime_status_suspended(&pdev->dev))
+ fsl_sai_runtime_suspend(&pdev->dev);
return 0;
}
@@ -1177,6 +1194,7 @@ static const struct fsl_sai_soc_data fsl_sai_vf610_data = {
.fifo_depth = 32,
.reg_offset = 0,
.mclk0_is_mclk1 = false,
+ .flags = 0,
};
static const struct fsl_sai_soc_data fsl_sai_imx6sx_data = {
@@ -1185,6 +1203,7 @@ static const struct fsl_sai_soc_data fsl_sai_imx6sx_data = {
.fifo_depth = 32,
.reg_offset = 0,
.mclk0_is_mclk1 = true,
+ .flags = 0,
};
static const struct fsl_sai_soc_data fsl_sai_imx7ulp_data = {
@@ -1193,6 +1212,7 @@ static const struct fsl_sai_soc_data fsl_sai_imx7ulp_data = {
.fifo_depth = 16,
.reg_offset = 8,
.mclk0_is_mclk1 = false,
+ .flags = PMQOS_CPU_LATENCY,
};
static const struct fsl_sai_soc_data fsl_sai_imx8mq_data = {
@@ -1201,6 +1221,7 @@ static const struct fsl_sai_soc_data fsl_sai_imx8mq_data = {
.fifo_depth = 128,
.reg_offset = 8,
.mclk0_is_mclk1 = false,
+ .flags = 0,
};
static const struct fsl_sai_soc_data fsl_sai_imx8qm_data = {
@@ -1209,6 +1230,7 @@ static const struct fsl_sai_soc_data fsl_sai_imx8qm_data = {
.fifo_depth = 64,
.reg_offset = 0,
.mclk0_is_mclk1 = false,
+ .flags = 0,
};
static const struct of_device_id fsl_sai_ids[] = {
@@ -1222,7 +1244,6 @@ static const struct of_device_id fsl_sai_ids[] = {
};
MODULE_DEVICE_TABLE(of, fsl_sai_ids);
-#ifdef CONFIG_PM
static int fsl_sai_runtime_suspend(struct device *dev)
{
struct fsl_sai *sai = dev_get_drvdata(dev);
@@ -1235,6 +1256,9 @@ static int fsl_sai_runtime_suspend(struct device *dev)
clk_disable_unprepare(sai->bus_clk);
+ if (sai->soc_data->flags & PMQOS_CPU_LATENCY)
+ cpu_latency_qos_remove_request(&sai->pm_qos_req);
+
regcache_cache_only(sai->regmap, true);
return 0;
@@ -1264,6 +1288,9 @@ static int fsl_sai_runtime_resume(struct device *dev)
goto disable_tx_clk;
}
+ if (sai->soc_data->flags & PMQOS_CPU_LATENCY)
+ cpu_latency_qos_add_request(&sai->pm_qos_req, 0);
+
regcache_cache_only(sai->regmap, false);
regcache_mark_dirty(sai->regmap);
regmap_write(sai->regmap, FSL_SAI_TCSR(ofs), FSL_SAI_CSR_SR);
@@ -1289,7 +1316,6 @@ disable_bus_clk:
return ret;
}
-#endif /* CONFIG_PM */
static const struct dev_pm_ops fsl_sai_pm_ops = {
SET_RUNTIME_PM_OPS(fsl_sai_runtime_suspend,
diff --git a/sound/soc/fsl/fsl_sai.h b/sound/soc/fsl/fsl_sai.h
index ff2619f1b214..bc60030967dd 100644
--- a/sound/soc/fsl/fsl_sai.h
+++ b/sound/soc/fsl/fsl_sai.h
@@ -216,12 +216,15 @@
#define FSL_SAI_MAXBURST_TX 6
#define FSL_SAI_MAXBURST_RX 6
+#define PMQOS_CPU_LATENCY BIT(0)
+
struct fsl_sai_soc_data {
bool use_imx_pcm;
bool use_edma;
bool mclk0_is_mclk1;
unsigned int fifo_depth;
unsigned int reg_offset;
+ unsigned int flags;
};
/**
@@ -273,6 +276,7 @@ struct fsl_sai {
struct snd_dmaengine_dai_dma_data dma_params_tx;
struct fsl_sai_verid verid;
struct fsl_sai_param param;
+ struct pm_qos_request pm_qos_req;
};
#define TX 1
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 174e558224d8..c631de325a6e 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -801,18 +801,6 @@ static int fsl_spdif_qget(struct snd_kcontrol *kcontrol,
return ret;
}
-/* Valid bit information */
-static int fsl_spdif_vbit_info(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_info *uinfo)
-{
- uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
- uinfo->count = 1;
- uinfo->value.integer.min = 0;
- uinfo->value.integer.max = 1;
-
- return 0;
-}
-
/* Get valid good bit from interrupt status register */
static int fsl_spdif_rx_vbit_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
@@ -925,18 +913,6 @@ static int fsl_spdif_rxrate_get(struct snd_kcontrol *kcontrol,
return 0;
}
-/* User bit sync mode info */
-static int fsl_spdif_usync_info(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_info *uinfo)
-{
- uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
- uinfo->count = 1;
- uinfo->value.integer.min = 0;
- uinfo->value.integer.max = 1;
-
- return 0;
-}
-
/*
* User bit sync mode:
* 1 CD User channel subcode
@@ -1018,7 +994,7 @@ static struct snd_kcontrol_new fsl_spdif_ctrls[] = {
.name = "IEC958 RX V-Bit Errors",
.access = SNDRV_CTL_ELEM_ACCESS_READ |
SNDRV_CTL_ELEM_ACCESS_VOLATILE,
- .info = fsl_spdif_vbit_info,
+ .info = snd_ctl_boolean_mono_info,
.get = fsl_spdif_rx_vbit_get,
},
{
@@ -1027,7 +1003,7 @@ static struct snd_kcontrol_new fsl_spdif_ctrls[] = {
.access = SNDRV_CTL_ELEM_ACCESS_READ |
SNDRV_CTL_ELEM_ACCESS_WRITE |
SNDRV_CTL_ELEM_ACCESS_VOLATILE,
- .info = fsl_spdif_vbit_info,
+ .info = snd_ctl_boolean_mono_info,
.get = fsl_spdif_tx_vbit_get,
.put = fsl_spdif_tx_vbit_put,
},
@@ -1047,7 +1023,7 @@ static struct snd_kcontrol_new fsl_spdif_ctrls[] = {
.access = SNDRV_CTL_ELEM_ACCESS_READ |
SNDRV_CTL_ELEM_ACCESS_WRITE |
SNDRV_CTL_ELEM_ACCESS_VOLATILE,
- .info = fsl_spdif_usync_info,
+ .info = snd_ctl_boolean_mono_info,
.get = fsl_spdif_usync_get,
.put = fsl_spdif_usync_put,
},
@@ -1318,8 +1294,7 @@ static int fsl_spdif_probe(struct platform_device *pdev)
if (IS_ERR(regs))
return PTR_ERR(regs);
- spdif_priv->regmap = devm_regmap_init_mmio_clk(&pdev->dev,
- "core", regs, &fsl_spdif_regmap_config);
+ spdif_priv->regmap = devm_regmap_init_mmio(&pdev->dev, regs, &fsl_spdif_regmap_config);
if (IS_ERR(spdif_priv->regmap)) {
dev_err(&pdev->dev, "regmap init failed\n");
return PTR_ERR(spdif_priv->regmap);
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index ad8af3f450e2..2b57b60431bb 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -363,7 +363,7 @@ static bool fsl_ssi_is_i2s_cbm_cfs(struct fsl_ssi *ssi)
}
/**
- * fsl_ssi_irq - Interrupt handler to gather states
+ * fsl_ssi_isr - Interrupt handler to gather states
* @irq: irq number
* @dev_id: context
*/
@@ -747,7 +747,7 @@ static int fsl_ssi_set_bclk(struct snd_pcm_substream *substream,
sub *= 100000;
do_div(sub, freq);
- if (sub < savesub && !(i == 0 && psr == 0 && div2 == 0)) {
+ if (sub < savesub && !(i == 0)) {
baudrate = tmprate;
savesub = sub;
pm = i;
@@ -764,8 +764,7 @@ static int fsl_ssi_set_bclk(struct snd_pcm_substream *substream,
return -EINVAL;
}
- stccr = SSI_SxCCR_PM(pm + 1) | (div2 ? SSI_SxCCR_DIV2 : 0) |
- (psr ? SSI_SxCCR_PSR : 0);
+ stccr = SSI_SxCCR_PM(pm + 1);
mask = SSI_SxCCR_PM_MASK | SSI_SxCCR_DIV2 | SSI_SxCCR_PSR;
/* STCCR is used for RX in synchronous mode */
diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c
index 6dd0a5fcd455..6cb558165848 100644
--- a/sound/soc/fsl/fsl_xcvr.c
+++ b/sound/soc/fsl/fsl_xcvr.c
@@ -869,7 +869,6 @@ static int fsl_xcvr_dai_probe(struct snd_soc_dai *dai)
struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
snd_soc_dai_init_dma_data(dai, &xcvr->dma_prms_tx, &xcvr->dma_prms_rx);
- snd_soc_dai_set_drvdata(dai, xcvr);
snd_soc_add_dai_controls(dai, &fsl_xcvr_mode_kctl, 1);
snd_soc_add_dai_controls(dai, &fsl_xcvr_arc_mode_kctl, 1);
@@ -1131,7 +1130,7 @@ static int fsl_xcvr_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct fsl_xcvr *xcvr;
- struct resource *ram_res, *regs_res, *rx_res, *tx_res;
+ struct resource *rx_res, *tx_res;
void __iomem *regs;
int ret, irq;
@@ -1166,13 +1165,11 @@ static int fsl_xcvr_probe(struct platform_device *pdev)
return PTR_ERR(xcvr->pll_ipg_clk);
}
- ram_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ram");
- xcvr->ram_addr = devm_ioremap_resource(dev, ram_res);
+ xcvr->ram_addr = devm_platform_ioremap_resource_byname(pdev, "ram");
if (IS_ERR(xcvr->ram_addr))
return PTR_ERR(xcvr->ram_addr);
- regs_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
- regs = devm_ioremap_resource(dev, regs_res);
+ regs = devm_platform_ioremap_resource_byname(pdev, "regs");
if (IS_ERR(regs))
return PTR_ERR(regs);
@@ -1243,10 +1240,6 @@ static __maybe_unused int fsl_xcvr_runtime_suspend(struct device *dev)
if (ret < 0)
dev_err(dev, "Failed to assert M0+ core: %d\n", ret);
- ret = reset_control_assert(xcvr->reset);
- if (ret < 0)
- dev_err(dev, "Failed to assert M0+ reset: %d\n", ret);
-
regcache_cache_only(xcvr->regmap, true);
clk_disable_unprepare(xcvr->spba_clk);
@@ -1262,6 +1255,12 @@ static __maybe_unused int fsl_xcvr_runtime_resume(struct device *dev)
struct fsl_xcvr *xcvr = dev_get_drvdata(dev);
int ret;
+ ret = reset_control_assert(xcvr->reset);
+ if (ret < 0) {
+ dev_err(dev, "Failed to assert M0+ reset: %d\n", ret);
+ return ret;
+ }
+
ret = clk_prepare_enable(xcvr->ipg_clk);
if (ret) {
dev_err(dev, "failed to start IPG clock.\n");
diff --git a/sound/soc/fsl/imx-audio-rpmsg.c b/sound/soc/fsl/imx-audio-rpmsg.c
new file mode 100644
index 000000000000..50099bcaa9cd
--- /dev/null
+++ b/sound/soc/fsl/imx-audio-rpmsg.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2017-2020 NXP
+
+#include <linux/module.h>
+#include <linux/rpmsg.h>
+#include "imx-pcm-rpmsg.h"
+
+/*
+ * struct imx_audio_rpmsg: private data
+ *
+ * @rpmsg_pdev: pointer of platform device
+ */
+struct imx_audio_rpmsg {
+ struct platform_device *rpmsg_pdev;
+};
+
+static int imx_audio_rpmsg_cb(struct rpmsg_device *rpdev, void *data, int len,
+ void *priv, u32 src)
+{
+ struct imx_audio_rpmsg *rpmsg = dev_get_drvdata(&rpdev->dev);
+ struct rpmsg_r_msg *r_msg = (struct rpmsg_r_msg *)data;
+ struct rpmsg_info *info;
+ struct rpmsg_msg *msg;
+ unsigned long flags;
+
+ if (!rpmsg->rpmsg_pdev)
+ return 0;
+
+ info = platform_get_drvdata(rpmsg->rpmsg_pdev);
+
+ dev_dbg(&rpdev->dev, "get from%d: cmd:%d. %d\n",
+ src, r_msg->header.cmd, r_msg->param.resp);
+
+ switch (r_msg->header.type) {
+ case MSG_TYPE_C:
+ /* TYPE C is notification from M core */
+ switch (r_msg->header.cmd) {
+ case TX_PERIOD_DONE:
+ spin_lock_irqsave(&info->lock[TX], flags);
+ msg = &info->msg[TX_PERIOD_DONE + MSG_TYPE_A_NUM];
+ msg->r_msg.param.buffer_tail =
+ r_msg->param.buffer_tail;
+ msg->r_msg.param.buffer_tail %= info->num_period[TX];
+ spin_unlock_irqrestore(&info->lock[TX], flags);
+ info->callback[TX](info->callback_param[TX]);
+ break;
+ case RX_PERIOD_DONE:
+ spin_lock_irqsave(&info->lock[RX], flags);
+ msg = &info->msg[RX_PERIOD_DONE + MSG_TYPE_A_NUM];
+ msg->r_msg.param.buffer_tail =
+ r_msg->param.buffer_tail;
+ msg->r_msg.param.buffer_tail %= info->num_period[1];
+ spin_unlock_irqrestore(&info->lock[RX], flags);
+ info->callback[RX](info->callback_param[RX]);
+ break;
+ default:
+ dev_warn(&rpdev->dev, "unknown msg command\n");
+ break;
+ }
+ break;
+ case MSG_TYPE_B:
+ /* TYPE B is response msg */
+ memcpy(&info->r_msg, r_msg, sizeof(struct rpmsg_r_msg));
+ complete(&info->cmd_complete);
+ break;
+ default:
+ dev_warn(&rpdev->dev, "unknown msg type\n");
+ break;
+ }
+
+ return 0;
+}
+
+static int imx_audio_rpmsg_probe(struct rpmsg_device *rpdev)
+{
+ struct imx_audio_rpmsg *data;
+ int ret = 0;
+
+ dev_info(&rpdev->dev, "new channel: 0x%x -> 0x%x!\n",
+ rpdev->src, rpdev->dst);
+
+ data = devm_kzalloc(&rpdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ dev_set_drvdata(&rpdev->dev, data);
+
+ /* Register platform driver for rpmsg routine */
+ data->rpmsg_pdev = platform_device_register_data(&rpdev->dev,
+ IMX_PCM_DRV_NAME,
+ PLATFORM_DEVID_NONE,
+ NULL, 0);
+ if (IS_ERR(data->rpmsg_pdev)) {
+ dev_err(&rpdev->dev, "failed to register rpmsg platform.\n");
+ ret = PTR_ERR(data->rpmsg_pdev);
+ }
+
+ return ret;
+}
+
+static void imx_audio_rpmsg_remove(struct rpmsg_device *rpdev)
+{
+ struct imx_audio_rpmsg *data = dev_get_drvdata(&rpdev->dev);
+
+ if (data->rpmsg_pdev)
+ platform_device_unregister(data->rpmsg_pdev);
+
+ dev_info(&rpdev->dev, "audio rpmsg driver is removed\n");
+}
+
+static struct rpmsg_device_id imx_audio_rpmsg_id_table[] = {
+ { .name = "rpmsg-audio-channel" },
+ { },
+};
+
+static struct rpmsg_driver imx_audio_rpmsg_driver = {
+ .drv.name = "imx_audio_rpmsg",
+ .drv.owner = THIS_MODULE,
+ .id_table = imx_audio_rpmsg_id_table,
+ .probe = imx_audio_rpmsg_probe,
+ .callback = imx_audio_rpmsg_cb,
+ .remove = imx_audio_rpmsg_remove,
+};
+
+static int __init imx_audio_rpmsg_init(void)
+{
+ return register_rpmsg_driver(&imx_audio_rpmsg_driver);
+}
+
+static void __exit imx_audio_rpmsg_exit(void)
+{
+ unregister_rpmsg_driver(&imx_audio_rpmsg_driver);
+}
+module_init(imx_audio_rpmsg_init);
+module_exit(imx_audio_rpmsg_exit);
+
+MODULE_DESCRIPTION("Freescale SoC Audio RPMSG interface");
+MODULE_AUTHOR("Shengjiu Wang <shengjiu.wang@nxp.com>");
+MODULE_ALIAS("platform:imx_audio_rpmsg");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/imx-hdmi.c b/sound/soc/fsl/imx-hdmi.c
index dbbb7618351c..34a0dceae621 100644
--- a/sound/soc/fsl/imx-hdmi.c
+++ b/sound/soc/fsl/imx-hdmi.c
@@ -10,16 +10,12 @@
/**
* struct cpu_priv - CPU private data
- * @sysclk_freq: SYSCLK rates for set_sysclk()
- * @sysclk_dir: SYSCLK directions for set_sysclk()
* @sysclk_id: SYSCLK ids for set_sysclk()
* @slot_width: Slot width of each frame
*
* Note: [1] for tx and [0] for rx
*/
struct cpu_priv {
- unsigned long sysclk_freq[2];
- u32 sysclk_dir[2];
u32 sysclk_id[2];
u32 slot_width;
};
@@ -223,7 +219,6 @@ MODULE_DEVICE_TABLE(of, imx_hdmi_dt_ids);
static struct platform_driver imx_hdmi_driver = {
.driver = {
.name = "imx-hdmi",
- .owner = THIS_MODULE,
.pm = &snd_soc_pm_ops,
.of_match_table = imx_hdmi_dt_ids,
},
diff --git a/sound/soc/fsl/imx-pcm-rpmsg.c b/sound/soc/fsl/imx-pcm-rpmsg.c
new file mode 100644
index 000000000000..875c0d6df339
--- /dev/null
+++ b/sound/soc/fsl/imx-pcm-rpmsg.c
@@ -0,0 +1,918 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2017-2021 NXP
+
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/rpmsg.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/soc.h>
+
+#include "imx-pcm.h"
+#include "fsl_rpmsg.h"
+#include "imx-pcm-rpmsg.h"
+
+static struct snd_pcm_hardware imx_rpmsg_pcm_hardware = {
+ .info = SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_RESUME,
+ .buffer_bytes_max = IMX_DEFAULT_DMABUF_SIZE,
+ .period_bytes_min = 512,
+ .period_bytes_max = 65536,
+ .periods_min = 2,
+ .periods_max = 6000,
+ .fifo_size = 0,
+};
+
+static int imx_rpmsg_pcm_send_message(struct rpmsg_msg *msg,
+ struct rpmsg_info *info)
+{
+ struct rpmsg_device *rpdev = info->rpdev;
+ int ret = 0;
+
+ mutex_lock(&info->msg_lock);
+ if (!rpdev) {
+ dev_err(info->dev, "rpmsg channel not ready\n");
+ mutex_unlock(&info->msg_lock);
+ return -EINVAL;
+ }
+
+ dev_dbg(&rpdev->dev, "send cmd %d\n", msg->s_msg.header.cmd);
+
+ if (!(msg->s_msg.header.type == MSG_TYPE_C))
+ reinit_completion(&info->cmd_complete);
+
+ ret = rpmsg_send(rpdev->ept, (void *)&msg->s_msg,
+ sizeof(struct rpmsg_s_msg));
+ if (ret) {
+ dev_err(&rpdev->dev, "rpmsg_send failed: %d\n", ret);
+ mutex_unlock(&info->msg_lock);
+ return ret;
+ }
+
+ /* No receive msg for TYPE_C command */
+ if (msg->s_msg.header.type == MSG_TYPE_C) {
+ mutex_unlock(&info->msg_lock);
+ return 0;
+ }
+
+ /* wait response from rpmsg */
+ ret = wait_for_completion_timeout(&info->cmd_complete,
+ msecs_to_jiffies(RPMSG_TIMEOUT));
+ if (!ret) {
+ dev_err(&rpdev->dev, "rpmsg_send cmd %d timeout!\n",
+ msg->s_msg.header.cmd);
+ mutex_unlock(&info->msg_lock);
+ return -ETIMEDOUT;
+ }
+
+ memcpy(&msg->r_msg, &info->r_msg, sizeof(struct rpmsg_r_msg));
+ memcpy(&info->msg[msg->r_msg.header.cmd].r_msg,
+ &msg->r_msg, sizeof(struct rpmsg_r_msg));
+
+ /*
+ * Reset the buffer pointer to be zero, actully we have
+ * set the buffer pointer to be zero in imx_rpmsg_terminate_all
+ * But if there is timer task queued in queue, after it is
+ * executed the buffer pointer will be changed, so need to
+ * reset it again with TERMINATE command.
+ */
+ switch (msg->s_msg.header.cmd) {
+ case TX_TERMINATE:
+ info->msg[TX_POINTER].r_msg.param.buffer_offset = 0;
+ break;
+ case RX_TERMINATE:
+ info->msg[RX_POINTER].r_msg.param.buffer_offset = 0;
+ break;
+ default:
+ break;
+ }
+
+ dev_dbg(&rpdev->dev, "cmd:%d, resp %d\n", msg->s_msg.header.cmd,
+ info->r_msg.param.resp);
+
+ mutex_unlock(&info->msg_lock);
+
+ return 0;
+}
+
+static int imx_rpmsg_insert_workqueue(struct snd_pcm_substream *substream,
+ struct rpmsg_msg *msg,
+ struct rpmsg_info *info)
+{
+ unsigned long flags;
+ int ret = 0;
+
+ /*
+ * Queue the work to workqueue.
+ * If the queue is full, drop the message.
+ */
+ spin_lock_irqsave(&info->wq_lock, flags);
+ if (info->work_write_index != info->work_read_index) {
+ int index = info->work_write_index;
+
+ memcpy(&info->work_list[index].msg, msg,
+ sizeof(struct rpmsg_s_msg));
+
+ queue_work(info->rpmsg_wq, &info->work_list[index].work);
+ info->work_write_index++;
+ info->work_write_index %= WORK_MAX_NUM;
+ } else {
+ info->msg_drop_count[substream->stream]++;
+ ret = -EPIPE;
+ }
+ spin_unlock_irqrestore(&info->wq_lock, flags);
+
+ return ret;
+}
+
+static int imx_rpmsg_pcm_hw_params(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct rpmsg_info *info = dev_get_drvdata(component->dev);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct rpmsg_msg *msg;
+ int ret = 0;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ msg = &info->msg[TX_HW_PARAM];
+ msg->s_msg.header.cmd = TX_HW_PARAM;
+ } else {
+ msg = &info->msg[RX_HW_PARAM];
+ msg->s_msg.header.cmd = RX_HW_PARAM;
+ }
+
+ msg->s_msg.param.rate = params_rate(params);
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ msg->s_msg.param.format = RPMSG_S16_LE;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ msg->s_msg.param.format = RPMSG_S24_LE;
+ break;
+ case SNDRV_PCM_FORMAT_DSD_U16_LE:
+ msg->s_msg.param.format = SNDRV_PCM_FORMAT_DSD_U16_LE;
+ break;
+ case SNDRV_PCM_FORMAT_DSD_U32_LE:
+ msg->s_msg.param.format = SNDRV_PCM_FORMAT_DSD_U32_LE;
+ break;
+ default:
+ msg->s_msg.param.format = RPMSG_S32_LE;
+ break;
+ }
+
+ switch (params_channels(params)) {
+ case 1:
+ msg->s_msg.param.channels = RPMSG_CH_LEFT;
+ break;
+ case 2:
+ msg->s_msg.param.channels = RPMSG_CH_STEREO;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
+ runtime->dma_bytes = params_buffer_bytes(params);
+
+ info->send_message(msg, info);
+
+ return ret;
+}
+
+static int imx_rpmsg_pcm_hw_free(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ snd_pcm_set_runtime_buffer(substream, NULL);
+ return 0;
+}
+
+static snd_pcm_uframes_t imx_rpmsg_pcm_pointer(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct rpmsg_info *info = dev_get_drvdata(component->dev);
+ struct rpmsg_msg *msg;
+ unsigned int pos = 0;
+ int buffer_tail = 0;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ msg = &info->msg[TX_PERIOD_DONE + MSG_TYPE_A_NUM];
+ else
+ msg = &info->msg[RX_PERIOD_DONE + MSG_TYPE_A_NUM];
+
+ buffer_tail = msg->r_msg.param.buffer_tail;
+ pos = buffer_tail * snd_pcm_lib_period_bytes(substream);
+
+ return bytes_to_frames(substream->runtime, pos);
+}
+
+static void imx_rpmsg_timer_callback(struct timer_list *t)
+{
+ struct stream_timer *stream_timer =
+ from_timer(stream_timer, t, timer);
+ struct snd_pcm_substream *substream = stream_timer->substream;
+ struct rpmsg_info *info = stream_timer->info;
+ struct rpmsg_msg *msg;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ msg = &info->msg[TX_PERIOD_DONE + MSG_TYPE_A_NUM];
+ msg->s_msg.header.cmd = TX_PERIOD_DONE;
+ } else {
+ msg = &info->msg[RX_PERIOD_DONE + MSG_TYPE_A_NUM];
+ msg->s_msg.header.cmd = RX_PERIOD_DONE;
+ }
+
+ imx_rpmsg_insert_workqueue(substream, msg, info);
+}
+
+static int imx_rpmsg_pcm_open(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct rpmsg_info *info = dev_get_drvdata(component->dev);
+ struct rpmsg_msg *msg;
+ int ret = 0;
+ int cmd;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ msg = &info->msg[TX_OPEN];
+ msg->s_msg.header.cmd = TX_OPEN;
+
+ /* reinitialize buffer counter*/
+ cmd = TX_PERIOD_DONE + MSG_TYPE_A_NUM;
+ info->msg[cmd].s_msg.param.buffer_tail = 0;
+ info->msg[cmd].r_msg.param.buffer_tail = 0;
+ info->msg[TX_POINTER].r_msg.param.buffer_offset = 0;
+
+ } else {
+ msg = &info->msg[RX_OPEN];
+ msg->s_msg.header.cmd = RX_OPEN;
+
+ /* reinitialize buffer counter*/
+ cmd = RX_PERIOD_DONE + MSG_TYPE_A_NUM;
+ info->msg[cmd].s_msg.param.buffer_tail = 0;
+ info->msg[cmd].r_msg.param.buffer_tail = 0;
+ info->msg[RX_POINTER].r_msg.param.buffer_offset = 0;
+ }
+
+ info->send_message(msg, info);
+
+ imx_rpmsg_pcm_hardware.period_bytes_max =
+ imx_rpmsg_pcm_hardware.buffer_bytes_max / 2;
+
+ snd_soc_set_runtime_hwparams(substream, &imx_rpmsg_pcm_hardware);
+
+ ret = snd_pcm_hw_constraint_integer(substream->runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS);
+ if (ret < 0)
+ return ret;
+
+ info->msg_drop_count[substream->stream] = 0;
+
+ /* Create timer*/
+ info->stream_timer[substream->stream].info = info;
+ info->stream_timer[substream->stream].substream = substream;
+ timer_setup(&info->stream_timer[substream->stream].timer,
+ imx_rpmsg_timer_callback, 0);
+ return ret;
+}
+
+static int imx_rpmsg_pcm_close(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+ struct rpmsg_info *info = dev_get_drvdata(component->dev);
+ struct rpmsg_msg *msg;
+ int ret = 0;
+
+ /* Flush work in workqueue to make TX_CLOSE is the last message */
+ flush_workqueue(info->rpmsg_wq);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ msg = &info->msg[TX_CLOSE];
+ msg->s_msg.header.cmd = TX_CLOSE;
+ } else {
+ msg = &info->msg[RX_CLOSE];
+ msg->s_msg.header.cmd = RX_CLOSE;
+ }
+
+ info->send_message(msg, info);
+
+ del_timer(&info->stream_timer[substream->stream].timer);
+
+ rtd->dai_link->ignore_suspend = 0;
+
+ if (info->msg_drop_count[substream->stream])
+ dev_warn(rtd->dev, "Msg is dropped!, number is %d\n",
+ info->msg_drop_count[substream->stream]);
+
+ return ret;
+}
+
+static int imx_rpmsg_pcm_prepare(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+ struct fsl_rpmsg *rpmsg = dev_get_drvdata(cpu_dai->dev);
+
+ /*
+ * NON-MMAP mode, NONBLOCK, Version 2, enable lpa in dts
+ * four conditions to determine the lpa is enabled.
+ */
+ if ((runtime->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED ||
+ runtime->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) &&
+ rpmsg->enable_lpa) {
+ /*
+ * Ignore suspend operation in low power mode
+ * M core will continue playback music on A core suspend.
+ */
+ rtd->dai_link->ignore_suspend = 1;
+ rpmsg->force_lpa = 1;
+ } else {
+ rpmsg->force_lpa = 0;
+ }
+
+ return 0;
+}
+
+static int imx_rpmsg_pcm_mmap(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ struct vm_area_struct *vma)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ return dma_mmap_wc(substream->pcm->card->dev, vma,
+ runtime->dma_area,
+ runtime->dma_addr,
+ runtime->dma_bytes);
+}
+
+static void imx_rpmsg_pcm_dma_complete(void *arg)
+{
+ struct snd_pcm_substream *substream = arg;
+
+ snd_pcm_period_elapsed(substream);
+}
+
+static int imx_rpmsg_prepare_and_submit(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct rpmsg_info *info = dev_get_drvdata(component->dev);
+ struct rpmsg_msg *msg;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ msg = &info->msg[TX_BUFFER];
+ msg->s_msg.header.cmd = TX_BUFFER;
+ } else {
+ msg = &info->msg[RX_BUFFER];
+ msg->s_msg.header.cmd = RX_BUFFER;
+ }
+
+ /* Send buffer address and buffer size */
+ msg->s_msg.param.buffer_addr = substream->runtime->dma_addr;
+ msg->s_msg.param.buffer_size = snd_pcm_lib_buffer_bytes(substream);
+ msg->s_msg.param.period_size = snd_pcm_lib_period_bytes(substream);
+ msg->s_msg.param.buffer_tail = 0;
+
+ info->num_period[substream->stream] = msg->s_msg.param.buffer_size /
+ msg->s_msg.param.period_size;
+
+ info->callback[substream->stream] = imx_rpmsg_pcm_dma_complete;
+ info->callback_param[substream->stream] = substream;
+
+ return imx_rpmsg_insert_workqueue(substream, msg, info);
+}
+
+static int imx_rpmsg_async_issue_pending(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct rpmsg_info *info = dev_get_drvdata(component->dev);
+ struct rpmsg_msg *msg;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ msg = &info->msg[TX_START];
+ msg->s_msg.header.cmd = TX_START;
+ } else {
+ msg = &info->msg[RX_START];
+ msg->s_msg.header.cmd = RX_START;
+ }
+
+ return imx_rpmsg_insert_workqueue(substream, msg, info);
+}
+
+static int imx_rpmsg_restart(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct rpmsg_info *info = dev_get_drvdata(component->dev);
+ struct rpmsg_msg *msg;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ msg = &info->msg[TX_RESTART];
+ msg->s_msg.header.cmd = TX_RESTART;
+ } else {
+ msg = &info->msg[RX_RESTART];
+ msg->s_msg.header.cmd = RX_RESTART;
+ }
+
+ return imx_rpmsg_insert_workqueue(substream, msg, info);
+}
+
+static int imx_rpmsg_pause(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct rpmsg_info *info = dev_get_drvdata(component->dev);
+ struct rpmsg_msg *msg;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ msg = &info->msg[TX_PAUSE];
+ msg->s_msg.header.cmd = TX_PAUSE;
+ } else {
+ msg = &info->msg[RX_PAUSE];
+ msg->s_msg.header.cmd = RX_PAUSE;
+ }
+
+ return imx_rpmsg_insert_workqueue(substream, msg, info);
+}
+
+static int imx_rpmsg_terminate_all(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct rpmsg_info *info = dev_get_drvdata(component->dev);
+ struct rpmsg_msg *msg;
+ int cmd;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ msg = &info->msg[TX_TERMINATE];
+ msg->s_msg.header.cmd = TX_TERMINATE;
+ /* Clear buffer count*/
+ cmd = TX_PERIOD_DONE + MSG_TYPE_A_NUM;
+ info->msg[cmd].s_msg.param.buffer_tail = 0;
+ info->msg[cmd].r_msg.param.buffer_tail = 0;
+ info->msg[TX_POINTER].r_msg.param.buffer_offset = 0;
+ } else {
+ msg = &info->msg[RX_TERMINATE];
+ msg->s_msg.header.cmd = RX_TERMINATE;
+ /* Clear buffer count*/
+ cmd = RX_PERIOD_DONE + MSG_TYPE_A_NUM;
+ info->msg[cmd].s_msg.param.buffer_tail = 0;
+ info->msg[cmd].r_msg.param.buffer_tail = 0;
+ info->msg[RX_POINTER].r_msg.param.buffer_offset = 0;
+ }
+
+ del_timer(&info->stream_timer[substream->stream].timer);
+
+ return imx_rpmsg_insert_workqueue(substream, msg, info);
+}
+
+static int imx_rpmsg_pcm_trigger(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream, int cmd)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+ struct fsl_rpmsg *rpmsg = dev_get_drvdata(cpu_dai->dev);
+ int ret = 0;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ ret = imx_rpmsg_prepare_and_submit(component, substream);
+ if (ret)
+ return ret;
+ ret = imx_rpmsg_async_issue_pending(component, substream);
+ break;
+ case SNDRV_PCM_TRIGGER_RESUME:
+ if (rpmsg->force_lpa)
+ break;
+ fallthrough;
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ ret = imx_rpmsg_restart(component, substream);
+ break;
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ if (!rpmsg->force_lpa) {
+ if (runtime->info & SNDRV_PCM_INFO_PAUSE)
+ ret = imx_rpmsg_pause(component, substream);
+ else
+ ret = imx_rpmsg_terminate_all(component, substream);
+ }
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ ret = imx_rpmsg_pause(component, substream);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ ret = imx_rpmsg_terminate_all(component, substream);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+/*
+ * imx_rpmsg_pcm_ack
+ *
+ * Send the period index to M core through rpmsg, but not send
+ * all the period index to M core, reduce some unnessesary msg
+ * to reduce the pressure of rpmsg bandwidth.
+ */
+static int imx_rpmsg_pcm_ack(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+ struct fsl_rpmsg *rpmsg = dev_get_drvdata(cpu_dai->dev);
+ struct rpmsg_info *info = dev_get_drvdata(component->dev);
+ snd_pcm_uframes_t period_size = runtime->period_size;
+ snd_pcm_sframes_t avail;
+ struct timer_list *timer;
+ struct rpmsg_msg *msg;
+ unsigned long flags;
+ int buffer_tail = 0;
+ int written_num = 0;
+
+ if (!rpmsg->force_lpa)
+ return 0;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ msg = &info->msg[TX_PERIOD_DONE + MSG_TYPE_A_NUM];
+ msg->s_msg.header.cmd = TX_PERIOD_DONE;
+ } else {
+ msg = &info->msg[RX_PERIOD_DONE + MSG_TYPE_A_NUM];
+ msg->s_msg.header.cmd = RX_PERIOD_DONE;
+ }
+
+ msg->s_msg.header.type = MSG_TYPE_C;
+
+ buffer_tail = (frames_to_bytes(runtime, runtime->control->appl_ptr) %
+ snd_pcm_lib_buffer_bytes(substream));
+ buffer_tail = buffer_tail / snd_pcm_lib_period_bytes(substream);
+
+ /* There is update for period index */
+ if (buffer_tail != msg->s_msg.param.buffer_tail) {
+ written_num = buffer_tail - msg->s_msg.param.buffer_tail;
+ if (written_num < 0)
+ written_num += runtime->periods;
+
+ msg->s_msg.param.buffer_tail = buffer_tail;
+
+ /* The notification message is updated to latest */
+ spin_lock_irqsave(&info->lock[substream->stream], flags);
+ memcpy(&info->notify[substream->stream], msg,
+ sizeof(struct rpmsg_s_msg));
+ info->notify_updated[substream->stream] = true;
+ spin_unlock_irqrestore(&info->lock[substream->stream], flags);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ avail = snd_pcm_playback_hw_avail(runtime);
+ else
+ avail = snd_pcm_capture_hw_avail(runtime);
+
+ timer = &info->stream_timer[substream->stream].timer;
+ /*
+ * If the data in the buffer is less than one period before
+ * this fill, which means the data may not enough on M
+ * core side, we need to send message immediately to let
+ * M core know the pointer is updated.
+ * if there is more than one period data in the buffer before
+ * this fill, which means the data is enough on M core side,
+ * we can delay one period (using timer) to send the message
+ * for reduce the message number in workqueue, because the
+ * pointer may be updated by ack function later, we can
+ * send latest pointer to M core side.
+ */
+ if ((avail - written_num * period_size) <= period_size) {
+ imx_rpmsg_insert_workqueue(substream, msg, info);
+ } else if (rpmsg->force_lpa && !timer_pending(timer)) {
+ int time_msec;
+
+ time_msec = (int)(runtime->period_size * 1000 / runtime->rate);
+ mod_timer(timer, jiffies + msecs_to_jiffies(time_msec));
+ }
+ }
+
+ return 0;
+}
+
+static int imx_rpmsg_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
+ int stream, int size)
+{
+ struct snd_pcm_substream *substream = pcm->streams[stream].substream;
+ struct snd_dma_buffer *buf = &substream->dma_buffer;
+
+ buf->dev.type = SNDRV_DMA_TYPE_DEV;
+ buf->dev.dev = pcm->card->dev;
+ buf->private_data = NULL;
+ buf->area = dma_alloc_wc(pcm->card->dev, size,
+ &buf->addr, GFP_KERNEL);
+ if (!buf->area)
+ return -ENOMEM;
+
+ buf->bytes = size;
+ return 0;
+}
+
+static void imx_rpmsg_pcm_free_dma_buffers(struct snd_soc_component *component,
+ struct snd_pcm *pcm)
+{
+ struct snd_pcm_substream *substream;
+ struct snd_dma_buffer *buf;
+ int stream;
+
+ for (stream = SNDRV_PCM_STREAM_PLAYBACK;
+ stream < SNDRV_PCM_STREAM_LAST; stream++) {
+ substream = pcm->streams[stream].substream;
+ if (!substream)
+ continue;
+
+ buf = &substream->dma_buffer;
+ if (!buf->area)
+ continue;
+
+ dma_free_wc(pcm->card->dev, buf->bytes,
+ buf->area, buf->addr);
+ buf->area = NULL;
+ }
+}
+
+static int imx_rpmsg_pcm_new(struct snd_soc_component *component,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_card *card = rtd->card->snd_card;
+ struct snd_pcm *pcm = rtd->pcm;
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+ struct fsl_rpmsg *rpmsg = dev_get_drvdata(cpu_dai->dev);
+ int ret;
+
+ ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+ if (ret)
+ return ret;
+
+ if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
+ ret = imx_rpmsg_pcm_preallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ rpmsg->buffer_size);
+ if (ret)
+ goto out;
+ }
+
+ if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
+ ret = imx_rpmsg_pcm_preallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_CAPTURE,
+ rpmsg->buffer_size);
+ if (ret)
+ goto out;
+ }
+
+ imx_rpmsg_pcm_hardware.buffer_bytes_max = rpmsg->buffer_size;
+out:
+ /* free preallocated buffers in case of error */
+ if (ret)
+ imx_rpmsg_pcm_free_dma_buffers(component, pcm);
+
+ return ret;
+}
+
+static const struct snd_soc_component_driver imx_rpmsg_soc_component = {
+ .name = IMX_PCM_DRV_NAME,
+ .pcm_construct = imx_rpmsg_pcm_new,
+ .pcm_destruct = imx_rpmsg_pcm_free_dma_buffers,
+ .open = imx_rpmsg_pcm_open,
+ .close = imx_rpmsg_pcm_close,
+ .hw_params = imx_rpmsg_pcm_hw_params,
+ .hw_free = imx_rpmsg_pcm_hw_free,
+ .trigger = imx_rpmsg_pcm_trigger,
+ .pointer = imx_rpmsg_pcm_pointer,
+ .mmap = imx_rpmsg_pcm_mmap,
+ .ack = imx_rpmsg_pcm_ack,
+ .prepare = imx_rpmsg_pcm_prepare,
+};
+
+static void imx_rpmsg_pcm_work(struct work_struct *work)
+{
+ struct work_of_rpmsg *work_of_rpmsg;
+ bool is_notification = false;
+ struct rpmsg_info *info;
+ struct rpmsg_msg msg;
+ unsigned long flags;
+
+ work_of_rpmsg = container_of(work, struct work_of_rpmsg, work);
+ info = work_of_rpmsg->info;
+
+ /*
+ * Every work in the work queue, first we check if there
+ * is update for period is filled, because there may be not
+ * enough data in M core side, need to let M core know
+ * data is updated immediately.
+ */
+ spin_lock_irqsave(&info->lock[TX], flags);
+ if (info->notify_updated[TX]) {
+ memcpy(&msg, &info->notify[TX], sizeof(struct rpmsg_s_msg));
+ info->notify_updated[TX] = false;
+ spin_unlock_irqrestore(&info->lock[TX], flags);
+ info->send_message(&msg, info);
+ } else {
+ spin_unlock_irqrestore(&info->lock[TX], flags);
+ }
+
+ spin_lock_irqsave(&info->lock[RX], flags);
+ if (info->notify_updated[RX]) {
+ memcpy(&msg, &info->notify[RX], sizeof(struct rpmsg_s_msg));
+ info->notify_updated[RX] = false;
+ spin_unlock_irqrestore(&info->lock[RX], flags);
+ info->send_message(&msg, info);
+ } else {
+ spin_unlock_irqrestore(&info->lock[RX], flags);
+ }
+
+ /* Skip the notification message for it has been processed above */
+ if (work_of_rpmsg->msg.s_msg.header.type == MSG_TYPE_C &&
+ (work_of_rpmsg->msg.s_msg.header.cmd == TX_PERIOD_DONE ||
+ work_of_rpmsg->msg.s_msg.header.cmd == RX_PERIOD_DONE))
+ is_notification = true;
+
+ if (!is_notification)
+ info->send_message(&work_of_rpmsg->msg, info);
+
+ /* update read index */
+ spin_lock_irqsave(&info->wq_lock, flags);
+ info->work_read_index++;
+ info->work_read_index %= WORK_MAX_NUM;
+ spin_unlock_irqrestore(&info->wq_lock, flags);
+}
+
+static int imx_rpmsg_pcm_probe(struct platform_device *pdev)
+{
+ struct snd_soc_component *component;
+ struct rpmsg_info *info;
+ int ret, i;
+
+ info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, info);
+
+ info->rpdev = container_of(pdev->dev.parent, struct rpmsg_device, dev);
+ info->dev = &pdev->dev;
+ /* Setup work queue */
+ info->rpmsg_wq = alloc_ordered_workqueue("rpmsg_audio",
+ WQ_HIGHPRI |
+ WQ_UNBOUND |
+ WQ_FREEZABLE);
+ if (!info->rpmsg_wq) {
+ dev_err(&pdev->dev, "workqueue create failed\n");
+ return -ENOMEM;
+ }
+
+ /* Write index initialize 1, make it differ with the read index */
+ info->work_write_index = 1;
+ info->send_message = imx_rpmsg_pcm_send_message;
+
+ for (i = 0; i < WORK_MAX_NUM; i++) {
+ INIT_WORK(&info->work_list[i].work, imx_rpmsg_pcm_work);
+ info->work_list[i].info = info;
+ }
+
+ /* Initialize msg */
+ for (i = 0; i < MSG_MAX_NUM; i++) {
+ info->msg[i].s_msg.header.cate = IMX_RPMSG_AUDIO;
+ info->msg[i].s_msg.header.major = IMX_RMPSG_MAJOR;
+ info->msg[i].s_msg.header.minor = IMX_RMPSG_MINOR;
+ info->msg[i].s_msg.header.type = MSG_TYPE_A;
+ info->msg[i].s_msg.param.audioindex = 0;
+ }
+
+ init_completion(&info->cmd_complete);
+ mutex_init(&info->msg_lock);
+ spin_lock_init(&info->lock[TX]);
+ spin_lock_init(&info->lock[RX]);
+ spin_lock_init(&info->wq_lock);
+
+ ret = devm_snd_soc_register_component(&pdev->dev,
+ &imx_rpmsg_soc_component,
+ NULL, 0);
+ if (ret)
+ goto fail;
+
+ component = snd_soc_lookup_component(&pdev->dev, IMX_PCM_DRV_NAME);
+ if (!component) {
+ ret = -EINVAL;
+ goto fail;
+ }
+#ifdef CONFIG_DEBUG_FS
+ component->debugfs_prefix = "rpmsg";
+#endif
+
+ return 0;
+
+fail:
+ if (info->rpmsg_wq)
+ destroy_workqueue(info->rpmsg_wq);
+
+ return ret;
+}
+
+static int imx_rpmsg_pcm_remove(struct platform_device *pdev)
+{
+ struct rpmsg_info *info = platform_get_drvdata(pdev);
+
+ if (info->rpmsg_wq)
+ destroy_workqueue(info->rpmsg_wq);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int imx_rpmsg_pcm_runtime_resume(struct device *dev)
+{
+ struct rpmsg_info *info = dev_get_drvdata(dev);
+
+ cpu_latency_qos_add_request(&info->pm_qos_req, 0);
+
+ return 0;
+}
+
+static int imx_rpmsg_pcm_runtime_suspend(struct device *dev)
+{
+ struct rpmsg_info *info = dev_get_drvdata(dev);
+
+ cpu_latency_qos_remove_request(&info->pm_qos_req);
+
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_PM_SLEEP
+static int imx_rpmsg_pcm_suspend(struct device *dev)
+{
+ struct rpmsg_info *info = dev_get_drvdata(dev);
+ struct rpmsg_msg *rpmsg_tx;
+ struct rpmsg_msg *rpmsg_rx;
+
+ rpmsg_tx = &info->msg[TX_SUSPEND];
+ rpmsg_rx = &info->msg[RX_SUSPEND];
+
+ rpmsg_tx->s_msg.header.cmd = TX_SUSPEND;
+ info->send_message(rpmsg_tx, info);
+
+ rpmsg_rx->s_msg.header.cmd = RX_SUSPEND;
+ info->send_message(rpmsg_rx, info);
+
+ return 0;
+}
+
+static int imx_rpmsg_pcm_resume(struct device *dev)
+{
+ struct rpmsg_info *info = dev_get_drvdata(dev);
+ struct rpmsg_msg *rpmsg_tx;
+ struct rpmsg_msg *rpmsg_rx;
+
+ rpmsg_tx = &info->msg[TX_RESUME];
+ rpmsg_rx = &info->msg[RX_RESUME];
+
+ rpmsg_tx->s_msg.header.cmd = TX_RESUME;
+ info->send_message(rpmsg_tx, info);
+
+ rpmsg_rx->s_msg.header.cmd = RX_RESUME;
+ info->send_message(rpmsg_rx, info);
+
+ return 0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static const struct dev_pm_ops imx_rpmsg_pcm_pm_ops = {
+ SET_RUNTIME_PM_OPS(imx_rpmsg_pcm_runtime_suspend,
+ imx_rpmsg_pcm_runtime_resume,
+ NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(imx_rpmsg_pcm_suspend,
+ imx_rpmsg_pcm_resume)
+};
+
+static struct platform_driver imx_pcm_rpmsg_driver = {
+ .probe = imx_rpmsg_pcm_probe,
+ .remove = imx_rpmsg_pcm_remove,
+ .driver = {
+ .name = IMX_PCM_DRV_NAME,
+ .pm = &imx_rpmsg_pcm_pm_ops,
+ },
+};
+module_platform_driver(imx_pcm_rpmsg_driver);
+
+MODULE_DESCRIPTION("Freescale SoC Audio RPMSG PCM interface");
+MODULE_AUTHOR("Shengjiu Wang <shengjiu.wang@nxp.com>");
+MODULE_ALIAS("platform:" IMX_PCM_DRV_NAME);
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/imx-pcm-rpmsg.h b/sound/soc/fsl/imx-pcm-rpmsg.h
new file mode 100644
index 000000000000..308d153920a3
--- /dev/null
+++ b/sound/soc/fsl/imx-pcm-rpmsg.h
@@ -0,0 +1,512 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2017-2021 NXP
+ *
+ ******************************************************************************
+ * Communication stack of audio with rpmsg
+ ******************************************************************************
+ * Packet structure:
+ * A SRTM message consists of a 10 bytes header followed by 0~N bytes of data
+ *
+ * +---------------+-------------------------------+
+ * | | Content |
+ * +---------------+-------------------------------+
+ * | Byte Offset | 7 6 5 4 3 2 1 0 |
+ * +---------------+---+---+---+---+---+---+---+---+
+ * | 0 | Category |
+ * +---------------+---+---+---+---+---+---+---+---+
+ * | 1 ~ 2 | Version |
+ * +---------------+---+---+---+---+---+---+---+---+
+ * | 3 | Type |
+ * +---------------+---+---+---+---+---+---+---+---+
+ * | 4 | Command |
+ * +---------------+---+---+---+---+---+---+---+---+
+ * | 5 | Reserved0 |
+ * +---------------+---+---+---+---+---+---+---+---+
+ * | 6 | Reserved1 |
+ * +---------------+---+---+---+---+---+---+---+---+
+ * | 7 | Reserved2 |
+ * +---------------+---+---+---+---+---+---+---+---+
+ * | 8 | Reserved3 |
+ * +---------------+---+---+---+---+---+---+---+---+
+ * | 9 | Reserved4 |
+ * +---------------+---+---+---+---+---+---+---+---+
+ * | 10 | DATA 0 |
+ * +---------------+---+---+---+---+---+---+---+---+
+ * : : : : : : : : : : : : :
+ * +---------------+---+---+---+---+---+---+---+---+
+ * | N + 10 - 1 | DATA N-1 |
+ * +---------------+---+---+---+---+---+---+---+---+
+ *
+ * +----------+------------+------------------------------------------------+
+ * | Field | Byte | |
+ * +----------+------------+------------------------------------------------+
+ * | Category | 0 | The destination category. |
+ * +----------+------------+------------------------------------------------+
+ * | Version | 1 ~ 2 | The category version of the sender of the |
+ * | | | packet. |
+ * | | | The first byte represent the major version of |
+ * | | | the packet.The second byte represent the minor |
+ * | | | version of the packet. |
+ * +----------+------------+------------------------------------------------+
+ * | Type | 3 | The message type of current message packet. |
+ * +----------+------------+------------------------------------------------+
+ * | Command | 4 | The command byte sent to remote processor/SoC. |
+ * +----------+------------+------------------------------------------------+
+ * | Reserved | 5 ~ 9 | Reserved field for future extension. |
+ * +----------+------------+------------------------------------------------+
+ * | Data | N | The data payload of the message packet. |
+ * +----------+------------+------------------------------------------------+
+ *
+ * Audio control:
+ * SRTM Audio Control Category Request Command Table:
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | Category | Version | Type | Command | Data | Function |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x00 | Data[0]: Audio Device Index | Open a TX Instance. |
+ * | | | | | Data[1]: format | |
+ * | | | | | Data[2]: channels | |
+ * | | | | | Data[3-6]: samplerate | |
+ * | | | | | Data[7-10]: buffer_addr | |
+ * | | | | | Data[11-14]: buffer_size | |
+ * | | | | | Data[15-18]: period_size | |
+ * | | | | | Data[19-22]: buffer_tail | |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x01 | Data[0]: Audio Device Index | Start a TX Instance. |
+ * | | | | | Same as above command | |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x02 | Data[0]: Audio Device Index | Pause a TX Instance. |
+ * | | | | | Same as above command | |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x03 | Data[0]: Audio Device Index | Resume a TX Instance. |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x04 | Data[0]: Audio Device Index | Stop a TX Instance. |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x05 | Data[0]: Audio Device Index | Close a TX Instance. |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x06 | Data[0]: Audio Device Index | Set Parameters for |
+ * | | | | | Data[1]: format | a TX Instance. |
+ * | | | | | Data[2]: channels | |
+ * | | | | | Data[3-6]: samplerate | |
+ * | | | | | Data[7-22]: reserved | |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x07 | Data[0]: Audio Device Index | Set TX Buffer. |
+ * | | | | | Data[1-6]: reserved | |
+ * | | | | | Data[7-10]: buffer_addr | |
+ * | | | | | Data[11-14]: buffer_size | |
+ * | | | | | Data[15-18]: period_size | |
+ * | | | | | Data[19-22]: buffer_tail | |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x08 | Data[0]: Audio Device Index | Suspend a TX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x09 | Data[0]: Audio Device Index | Resume a TX Instance. |
+ * | | | | | Data[1]: format | |
+ * | | | | | Data[2]: channels | |
+ * | | | | | Data[3-6]: samplerate | |
+ * | | | | | Data[7-10]: buffer_addr | |
+ * | | | | | Data[11-14]: buffer_size | |
+ * | | | | | Data[15-18]: period_size | |
+ * | | | | | Data[19-22]: buffer_tail | |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x0A | Data[0]: Audio Device Index | Open a RX Instance. |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x0B | Data[0]: Audio Device Index | Start a RX Instance. |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x0C | Data[0]: Audio Device Index | Pause a RX Instance. |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x0D | Data[0]: Audio Device Index | Resume a RX Instance. |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x0E | Data[0]: Audio Device Index | Stop a RX Instance. |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x0F | Data[0]: Audio Device Index | Close a RX Instance. |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x10 | Data[0]: Audio Device Index | Set Parameters for |
+ * | | | | | Data[1]: format | a RX Instance. |
+ * | | | | | Data[2]: channels | |
+ * | | | | | Data[3-6]: samplerate | |
+ * | | | | | Data[7-22]: reserved | |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x11 | Data[0]: Audio Device Index | Set RX Buffer. |
+ * | | | | | Data[1-6]: reserved | |
+ * | | | | | Data[7-10]: buffer_addr | |
+ * | | | | | Data[11-14]: buffer_size | |
+ * | | | | | Data[15-18]: period_size | |
+ * | | | | | Data[19-22]: buffer_tail | |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x12 | Data[0]: Audio Device Index | Suspend a RX Instance.|
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x13 | Data[0]: Audio Device Index | Resume a RX Instance. |
+ * | | | | | Data[1]: format | |
+ * | | | | | Data[2]: channels | |
+ * | | | | | Data[3-6]: samplerate | |
+ * | | | | | Data[7-10]: buffer_addr | |
+ * | | | | | Data[11-14]: buffer_size | |
+ * | | | | | Data[15-18]: period_size | |
+ * | | | | | Data[19-22]: buffer_tail | |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x14 | Data[0]: Audio Device Index | Set register value |
+ * | | | | | Data[1-6]: reserved | to codec |
+ * | | | | | Data[7-10]: register | |
+ * | | | | | Data[11-14]: value | |
+ * | | | | | Data[15-22]: reserved | |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x00 | 0x15 | Data[0]: Audio Device Index | Get register value |
+ * | | | | | Data[1-6]: reserved | from codec |
+ * | | | | | Data[7-10]: register | |
+ * | | | | | Data[11-22]: reserved | |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * Note 1: See <List of Sample Format> for available value of
+ * Sample Format;
+ * Note 2: See <List of Audio Channels> for available value of Channels;
+ * Note 3: Sample Rate of Set Parameters for an Audio TX Instance
+ * Command and Set Parameters for an Audio RX Instance Command is
+ * in little-endian format.
+ *
+ * SRTM Audio Control Category Response Command Table:
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | Category | Version | Type | Command | Data | Function |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x00 | Data[0]: Audio Device Index | Reply for Open |
+ * | | | | | Data[1]: Return code | a TX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x01 | Data[0]: Audio Device Index | Reply for Start |
+ * | | | | | Data[1]: Return code | a TX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x02 | Data[0]: Audio Device Index | Reply for Pause |
+ * | | | | | Data[1]: Return code | a TX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x03 | Data[0]: Audio Device Index | Reply for Resume |
+ * | | | | | Data[1]: Return code | a TX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x04 | Data[0]: Audio Device Index | Reply for Stop |
+ * | | | | | Data[1]: Return code | a TX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x05 | Data[0]: Audio Device Index | Reply for Close |
+ * | | | | | Data[1]: Return code | a TX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x06 | Data[0]: Audio Device Index | Reply for Set Param |
+ * | | | | | Data[1]: Return code | for a TX Instance. |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x07 | Data[0]: Audio Device Index | Reply for Set |
+ * | | | | | Data[1]: Return code | TX Buffer |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x08 | Data[0]: Audio Device Index | Reply for Suspend |
+ * | | | | | Data[1]: Return code | a TX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x09 | Data[0]: Audio Device Index | Reply for Resume |
+ * | | | | | Data[1]: Return code | a TX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x0A | Data[0]: Audio Device Index | Reply for Open |
+ * | | | | | Data[1]: Return code | a TX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x0B | Data[0]: Audio Device Index | Reply for Start |
+ * | | | | | Data[1]: Return code | a TX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x0C | Data[0]: Audio Device Index | Reply for Pause |
+ * | | | | | Data[1]: Return code | a TX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x0D | Data[0]: Audio Device Index | Reply for Resume |
+ * | | | | | Data[1]: Return code | a RX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x0E | Data[0]: Audio Device Index | Reply for Stop |
+ * | | | | | Data[1]: Return code | a RX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x0F | Data[0]: Audio Device Index | Reply for Close |
+ * | | | | | Data[1]: Return code | a RX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x10 | Data[0]: Audio Device Index | Reply for Set Param |
+ * | | | | | Data[1]: Return code | for a RX Instance. |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x11 | Data[0]: Audio Device Index | Reply for Set |
+ * | | | | | Data[1]: Return code | RX Buffer |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x12 | Data[0]: Audio Device Index | Reply for Suspend |
+ * | | | | | Data[1]: Return code | a RX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x13 | Data[0]: Audio Device Index | Reply for Resume |
+ * | | | | | Data[1]: Return code | a RX Instance |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x14 | Data[0]: Audio Device Index | Reply for Set codec |
+ * | | | | | Data[1]: Return code | register value |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x01 | 0x15 | Data[0]: Audio Device Index | Reply for Get codec |
+ * | | | | | Data[1]: Return code | register value |
+ * | | | | | Data[2-6]: reserved | |
+ * | | | | | Data[7-10]: register | |
+ * | | | | | Data[11-14]: value | |
+ * | | | | | Data[15-22]: reserved | |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ *
+ * SRTM Audio Control Category Notification Command Table:
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | Category | Version | Type | Command | Data | Function |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x02 | 0x00 | Data[0]: Audio Device Index | Notify one TX period |
+ * | | | | | | is finished |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ * | 0x03 | 0x0100 | 0x02 | 0x01 | Data[0]: Audio Device Index | Notify one RX period |
+ * | | | | | | is finished |
+ * +----------+---------+------+---------+-------------------------------+-----------------------+
+ *
+ * List of Sample Format:
+ * +------------------+-----------------------+
+ * | Sample Format | Description |
+ * +------------------+-----------------------+
+ * | 0x0 | S16_LE |
+ * +------------------+-----------------------+
+ * | 0x1 | S24_LE |
+ * +------------------+-----------------------+
+ *
+ * List of Audio Channels
+ * +------------------+-----------------------+
+ * | Audio Channel | Description |
+ * +------------------+-----------------------+
+ * | 0x0 | Left Channel |
+ * +------------------+-----------------------+
+ * | 0x1 | Right Channel |
+ * +------------------+---------------- ------+
+ * | 0x2 | Left & Right Channel |
+ * +------------------+-----------------------+
+ *
+ */
+
+#ifndef _IMX_PCM_RPMSG_H
+#define _IMX_PCM_RPMSG_H
+
+#include <linux/pm_qos.h>
+#include <linux/interrupt.h>
+#include <sound/dmaengine_pcm.h>
+
+#define RPMSG_TIMEOUT 1000
+
+/* RPMSG Command (TYPE A)*/
+#define TX_OPEN 0x0
+#define TX_START 0x1
+#define TX_PAUSE 0x2
+#define TX_RESTART 0x3
+#define TX_TERMINATE 0x4
+#define TX_CLOSE 0x5
+#define TX_HW_PARAM 0x6
+#define TX_BUFFER 0x7
+#define TX_SUSPEND 0x8
+#define TX_RESUME 0x9
+
+#define RX_OPEN 0xA
+#define RX_START 0xB
+#define RX_PAUSE 0xC
+#define RX_RESTART 0xD
+#define RX_TERMINATE 0xE
+#define RX_CLOSE 0xF
+#define RX_HW_PARAM 0x10
+#define RX_BUFFER 0x11
+#define RX_SUSPEND 0x12
+#define RX_RESUME 0x13
+#define SET_CODEC_VALUE 0x14
+#define GET_CODEC_VALUE 0x15
+#define TX_POINTER 0x16
+#define RX_POINTER 0x17
+/* Total msg numver for type A */
+#define MSG_TYPE_A_NUM 0x18
+
+/* RPMSG Command (TYPE C)*/
+#define TX_PERIOD_DONE 0x0
+#define RX_PERIOD_DONE 0x1
+/* Total msg numver for type C */
+#define MSG_TYPE_C_NUM 0x2
+
+#define MSG_MAX_NUM (MSG_TYPE_A_NUM + MSG_TYPE_C_NUM)
+
+#define MSG_TYPE_A 0x0
+#define MSG_TYPE_B 0x1
+#define MSG_TYPE_C 0x2
+
+#define RESP_NONE 0x0
+#define RESP_NOT_ALLOWED 0x1
+#define RESP_SUCCESS 0x2
+#define RESP_FAILED 0x3
+
+#define RPMSG_S16_LE 0x0
+#define RPMSG_S24_LE 0x1
+#define RPMSG_S32_LE 0x2
+#define RPMSG_DSD_U16_LE 0x3
+#define RPMSG_DSD_U24_LE 0x4
+#define RPMSG_DSD_U32_LE 0x5
+
+#define RPMSG_CH_LEFT 0x0
+#define RPMSG_CH_RIGHT 0x1
+#define RPMSG_CH_STEREO 0x2
+
+#define WORK_MAX_NUM 0x30
+
+/* Category define */
+#define IMX_RMPSG_LIFECYCLE 1
+#define IMX_RPMSG_PMIC 2
+#define IMX_RPMSG_AUDIO 3
+#define IMX_RPMSG_KEY 4
+#define IMX_RPMSG_GPIO 5
+#define IMX_RPMSG_RTC 6
+#define IMX_RPMSG_SENSOR 7
+
+/* rpmsg version */
+#define IMX_RMPSG_MAJOR 1
+#define IMX_RMPSG_MINOR 0
+
+#define TX SNDRV_PCM_STREAM_PLAYBACK
+#define RX SNDRV_PCM_STREAM_CAPTURE
+
+/**
+ * struct rpmsg_head: rpmsg header structure
+ *
+ * @cate: category
+ * @major: major version
+ * @minor: minor version
+ * @type: message type (A/B/C)
+ * @cmd: message command
+ * @reserved: reserved space
+ */
+struct rpmsg_head {
+ u8 cate;
+ u8 major;
+ u8 minor;
+ u8 type;
+ u8 cmd;
+ u8 reserved[5];
+} __packed;
+
+/**
+ * struct param_s: sent rpmsg parameter
+ *
+ * @audioindex: audio instance index
+ * @format: audio format
+ * @channels: audio channel number
+ * @rate: sample rate
+ * @buffer_addr: dma buffer physical address or register for SET_CODEC_VALUE
+ * @buffer_size: dma buffer size or register value for SET_CODEC_VALUE
+ * @period_size: period size
+ * @buffer_tail: current period index
+ */
+struct param_s {
+ unsigned char audioindex;
+ unsigned char format;
+ unsigned char channels;
+ unsigned int rate;
+ unsigned int buffer_addr;
+ unsigned int buffer_size;
+ unsigned int period_size;
+ unsigned int buffer_tail;
+} __packed;
+
+/**
+ * struct param_s: send rpmsg parameter
+ *
+ * @audioindex: audio instance index
+ * @resp: response value
+ * @reserved1: reserved space
+ * @buffer_offset: the consumed offset of buffer
+ * @reg_addr: register addr of codec
+ * @reg_data: register value of codec
+ * @reserved2: reserved space
+ * @buffer_tail: current period index
+ */
+struct param_r {
+ unsigned char audioindex;
+ unsigned char resp;
+ unsigned char reserved1[1];
+ unsigned int buffer_offset;
+ unsigned int reg_addr;
+ unsigned int reg_data;
+ unsigned char reserved2[4];
+ unsigned int buffer_tail;
+} __packed;
+
+/* Struct of sent message */
+struct rpmsg_s_msg {
+ struct rpmsg_head header;
+ struct param_s param;
+};
+
+/* Struct of received message */
+struct rpmsg_r_msg {
+ struct rpmsg_head header;
+ struct param_r param;
+};
+
+/* Struct of rpmsg */
+struct rpmsg_msg {
+ struct rpmsg_s_msg s_msg;
+ struct rpmsg_r_msg r_msg;
+};
+
+/* Struct of rpmsg for workqueue */
+struct work_of_rpmsg {
+ struct rpmsg_info *info;
+ /* Sent msg for each work */
+ struct rpmsg_msg msg;
+ struct work_struct work;
+};
+
+/* Struct of timer */
+struct stream_timer {
+ struct timer_list timer;
+ struct rpmsg_info *info;
+ struct snd_pcm_substream *substream;
+};
+
+typedef void (*dma_callback)(void *arg);
+
+/**
+ * struct rpmsg_info: rpmsg audio information
+ *
+ * @rpdev: pointer of rpmsg_device
+ * @dev: pointer for imx_pcm_rpmsg device
+ * @cmd_complete: command is finished
+ * @pm_qos_req: request of pm qos
+ * @r_msg: received rpmsg
+ * @msg: array of rpmsg
+ * @notify: notification msg (type C) for TX & RX
+ * @notify_updated: notification flag for TX & RX
+ * @rpmsg_wq: rpmsg workqueue
+ * @work_list: array of work list for workqueue
+ * @work_write_index: write index of work list
+ * @work_read_index: read index of work list
+ * @msg_drop_count: counter of dropped msg for TX & RX
+ * @num_period: period number for TX & RX
+ * @callback_param: parameter for period elapse callback for TX & RX
+ * @callback: period elapse callback for TX & RX
+ * @send_message: function pointer for send message
+ * @lock: spin lock for TX & RX
+ * @wq_lock: lock for work queue
+ * @msg_lock: lock for send message
+ * @stream_timer: timer for tigger workqueue
+ */
+struct rpmsg_info {
+ struct rpmsg_device *rpdev;
+ struct device *dev;
+ struct completion cmd_complete;
+ struct pm_qos_request pm_qos_req;
+
+ /* Received msg (global) */
+ struct rpmsg_r_msg r_msg;
+ struct rpmsg_msg msg[MSG_MAX_NUM];
+ /* period done */
+ struct rpmsg_msg notify[2];
+ bool notify_updated[2];
+
+ struct workqueue_struct *rpmsg_wq;
+ struct work_of_rpmsg work_list[WORK_MAX_NUM];
+ int work_write_index;
+ int work_read_index;
+ int msg_drop_count[2];
+ int num_period[2];
+ void *callback_param[2];
+ dma_callback callback[2];
+ int (*send_message)(struct rpmsg_msg *msg, struct rpmsg_info *info);
+ spinlock_t lock[2]; /* spin lock for resource protection */
+ spinlock_t wq_lock; /* spin lock for resource protection */
+ struct mutex msg_lock; /* mutex for resource protection */
+ struct stream_timer stream_timer[2];
+};
+
+#define IMX_PCM_DRV_NAME "imx_pcm_rpmsg"
+
+#endif /* IMX_PCM_RPMSG_H */
diff --git a/sound/soc/fsl/imx-rpmsg.c b/sound/soc/fsl/imx-rpmsg.c
new file mode 100644
index 000000000000..5a9a470d203f
--- /dev/null
+++ b/sound/soc/fsl/imx-rpmsg.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2017-2020 NXP
+
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/of_reserved_mem.h>
+#include <linux/i2c.h>
+#include <linux/of_gpio.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/clk.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <sound/control.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-dapm.h>
+#include "imx-pcm-rpmsg.h"
+
+struct imx_rpmsg {
+ struct snd_soc_dai_link dai;
+ struct snd_soc_card card;
+};
+
+static const struct snd_soc_dapm_widget imx_rpmsg_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_SPK("Ext Spk", NULL),
+ SND_SOC_DAPM_MIC("Mic Jack", NULL),
+ SND_SOC_DAPM_MIC("Main MIC", NULL),
+};
+
+static int imx_rpmsg_probe(struct platform_device *pdev)
+{
+ struct snd_soc_dai_link_component *dlc;
+ struct device *dev = pdev->dev.parent;
+ /* rpmsg_pdev is the platform device for the rpmsg node that probed us */
+ struct platform_device *rpmsg_pdev = to_platform_device(dev);
+ struct device_node *np = rpmsg_pdev->dev.of_node;
+ struct of_phandle_args args;
+ struct imx_rpmsg *data;
+ int ret = 0;
+
+ dlc = devm_kzalloc(&pdev->dev, 3 * sizeof(*dlc), GFP_KERNEL);
+ if (!dlc)
+ return -ENOMEM;
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ ret = of_reserved_mem_device_init_by_idx(&pdev->dev, np, 0);
+ if (ret)
+ dev_warn(&pdev->dev, "no reserved DMA memory\n");
+
+ data->dai.cpus = &dlc[0];
+ data->dai.num_cpus = 1;
+ data->dai.platforms = &dlc[1];
+ data->dai.num_platforms = 1;
+ data->dai.codecs = &dlc[2];
+ data->dai.num_codecs = 1;
+
+ data->dai.name = "rpmsg hifi";
+ data->dai.stream_name = "rpmsg hifi";
+ data->dai.dai_fmt = SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS;
+
+ /* Optional codec node */
+ ret = of_parse_phandle_with_fixed_args(np, "audio-codec", 0, 0, &args);
+ if (ret) {
+ data->dai.codecs->dai_name = "snd-soc-dummy-dai";
+ data->dai.codecs->name = "snd-soc-dummy";
+ } else {
+ data->dai.codecs->of_node = args.np;
+ ret = snd_soc_get_dai_name(&args, &data->dai.codecs->dai_name);
+ if (ret) {
+ dev_err(&pdev->dev, "Unable to get codec_dai_name\n");
+ goto fail;
+ }
+ }
+
+ data->dai.cpus->dai_name = dev_name(&rpmsg_pdev->dev);
+ data->dai.platforms->name = IMX_PCM_DRV_NAME;
+ data->dai.playback_only = true;
+ data->dai.capture_only = true;
+ data->card.num_links = 1;
+ data->card.dai_link = &data->dai;
+
+ if (of_property_read_bool(np, "fsl,rpmsg-out"))
+ data->dai.capture_only = false;
+
+ if (of_property_read_bool(np, "fsl,rpmsg-in"))
+ data->dai.playback_only = false;
+
+ if (data->dai.playback_only && data->dai.capture_only) {
+ dev_err(&pdev->dev, "no enabled rpmsg DAI link\n");
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ data->card.dev = &pdev->dev;
+ data->card.owner = THIS_MODULE;
+ data->card.dapm_widgets = imx_rpmsg_dapm_widgets;
+ data->card.num_dapm_widgets = ARRAY_SIZE(imx_rpmsg_dapm_widgets);
+ /*
+ * Inoder to use common api to get card name and audio routing.
+ * Use parent of_node for this device, revert it after finishing using
+ */
+ data->card.dev->of_node = np;
+
+ ret = snd_soc_of_parse_card_name(&data->card, "model");
+ if (ret)
+ goto fail;
+
+ if (of_property_read_bool(np, "audio-routing")) {
+ ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing");
+ if (ret) {
+ dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
+ goto fail;
+ }
+ }
+
+ platform_set_drvdata(pdev, &data->card);
+ snd_soc_card_set_drvdata(&data->card, data);
+ ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
+ goto fail;
+ }
+
+fail:
+ pdev->dev.of_node = NULL;
+ return ret;
+}
+
+static struct platform_driver imx_rpmsg_driver = {
+ .driver = {
+ .name = "imx-audio-rpmsg",
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = imx_rpmsg_probe,
+};
+module_platform_driver(imx_rpmsg_driver);
+
+MODULE_DESCRIPTION("Freescale SoC Audio RPMSG Machine Driver");
+MODULE_AUTHOR("Shengjiu Wang <shengjiu.wang@nxp.com>");
+MODULE_ALIAS("platform:imx-audio-rpmsg");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c
index 231984882176..6c65cd858b0b 100644
--- a/sound/soc/fsl/mpc5200_dma.c
+++ b/sound/soc/fsl/mpc5200_dma.c
@@ -411,7 +411,7 @@ int mpc5200_audio_dma_create(struct platform_device *op)
psc_dma->dev = &op->dev;
psc_dma->playback.psc_dma = psc_dma;
psc_dma->capture.psc_dma = psc_dma;
- snprintf(psc_dma->name, sizeof psc_dma->name, "PSC%u", psc_dma->id);
+ snprintf(psc_dma->name, sizeof(psc_dma->name), "PSC%d", psc_dma->id);
/* Find the address of the fifo data registers and setup the
* DMA tasks */
diff --git a/sound/soc/fsl/mpc8610_hpcd.c b/sound/soc/fsl/mpc8610_hpcd.c
index eccc833390d4..58b9ca3c4da0 100644
--- a/sound/soc/fsl/mpc8610_hpcd.c
+++ b/sound/soc/fsl/mpc8610_hpcd.c
@@ -190,7 +190,7 @@ static int mpc8610_hpcd_probe(struct platform_device *pdev)
struct device_node *codec_np = NULL;
struct mpc8610_hpcd_data *machine_data;
struct snd_soc_dai_link_component *comp;
- int ret = -ENODEV;
+ int ret;
const char *sprop;
const u32 *iprop;
diff --git a/sound/soc/fsl/p1022_ds.c b/sound/soc/fsl/p1022_ds.c
index ac68d2238045..317c767b0099 100644
--- a/sound/soc/fsl/p1022_ds.c
+++ b/sound/soc/fsl/p1022_ds.c
@@ -200,7 +200,7 @@ static int p1022_ds_probe(struct platform_device *pdev)
struct device_node *codec_np = NULL;
struct machine_data *mdata;
struct snd_soc_dai_link_component *comp;
- int ret = -ENODEV;
+ int ret;
const char *sprop;
const u32 *iprop;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 21:40:19 +0000