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-rw-r--r--Documentation/devicetree/bindings/sound/pcm512x.txt25
-rw-r--r--sound/soc/codecs/pcm512x.c458
-rw-r--r--sound/soc/codecs/pcm512x.h44
3 files changed, 501 insertions, 26 deletions
diff --git a/Documentation/devicetree/bindings/sound/pcm512x.txt b/Documentation/devicetree/bindings/sound/pcm512x.txt
index 98e0d34915e8..3aae3b41bd8e 100644
--- a/Documentation/devicetree/bindings/sound/pcm512x.txt
+++ b/Documentation/devicetree/bindings/sound/pcm512x.txt
@@ -17,9 +17,16 @@ Required properties:
Optional properties:
- clocks : A clock specifier for the clock connected as SCLK. If this
- is absent the device will be configured to clock from BCLK.
+ is absent the device will be configured to clock from BCLK. If pll-in
+ and pll-out are specified in addition to a clock, the device is
+ configured to accept clock input on a specified gpio pin.
-Example:
+ - pll-in, pll-out : gpio pins used to connect the pll using <1>
+ through <6>. The device will be configured for clock input on the
+ given pll-in pin and PLL output on the given pll-out pin. An
+ external connection from the pll-out pin to the SCLK pin is assumed.
+
+Examples:
pcm5122: pcm5122@4c {
compatible = "ti,pcm5122";
@@ -29,3 +36,17 @@ Example:
DVDD-supply = <&reg_1v8>;
CPVDD-supply = <&reg_3v3>;
};
+
+
+ pcm5142: pcm5142@4c {
+ compatible = "ti,pcm5142";
+ reg = <0x4c>;
+
+ AVDD-supply = <&reg_3v3_analog>;
+ DVDD-supply = <&reg_1v8>;
+ CPVDD-supply = <&reg_3v3>;
+
+ clocks = <&sck>;
+ pll-in = <3>;
+ pll-out = <6>;
+ };
diff --git a/sound/soc/codecs/pcm512x.c b/sound/soc/codecs/pcm512x.c
index 526e6b30cdde..66dd036f0141 100644
--- a/sound/soc/codecs/pcm512x.c
+++ b/sound/soc/codecs/pcm512x.c
@@ -21,6 +21,7 @@
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
+#include <linux/gcd.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/pcm_params.h>
@@ -28,6 +29,11 @@
#include "pcm512x.h"
+#define DIV_ROUND_DOWN_ULL(ll, d) \
+ ({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; })
+#define DIV_ROUND_CLOSEST_ULL(ll, d) \
+ ({ unsigned long long _tmp = (ll)+(d)/2; do_div(_tmp, d); _tmp; })
+
#define PCM512x_NUM_SUPPLIES 3
static const char * const pcm512x_supply_names[PCM512x_NUM_SUPPLIES] = {
"AVDD",
@@ -41,6 +47,13 @@ struct pcm512x_priv {
struct regulator_bulk_data supplies[PCM512x_NUM_SUPPLIES];
struct notifier_block supply_nb[PCM512x_NUM_SUPPLIES];
int fmt;
+ int pll_in;
+ int pll_out;
+ int pll_r;
+ int pll_j;
+ int pll_d;
+ int pll_p;
+ unsigned long real_pll;
};
/*
@@ -92,7 +105,13 @@ static const struct reg_default pcm512x_reg_defaults[] = {
{ PCM512x_VCOM_CTRL_2, 0x01 },
{ PCM512x_BCLK_LRCLK_CFG, 0x00 },
{ PCM512x_MASTER_MODE, 0x7c },
+ { PCM512x_GPIO_PLLIN, 0x00 },
{ PCM512x_SYNCHRONIZE, 0x10 },
+ { PCM512x_PLL_COEFF_0, 0x00 },
+ { PCM512x_PLL_COEFF_1, 0x00 },
+ { PCM512x_PLL_COEFF_2, 0x00 },
+ { PCM512x_PLL_COEFF_3, 0x00 },
+ { PCM512x_PLL_COEFF_4, 0x00 },
{ PCM512x_DSP_CLKDIV, 0x00 },
{ PCM512x_DAC_CLKDIV, 0x00 },
{ PCM512x_NCP_CLKDIV, 0x00 },
@@ -119,6 +138,7 @@ static bool pcm512x_readable(struct device *dev, unsigned int reg)
case PCM512x_MASTER_MODE:
case PCM512x_PLL_REF:
case PCM512x_DAC_REF:
+ case PCM512x_GPIO_PLLIN:
case PCM512x_SYNCHRONIZE:
case PCM512x_PLL_COEFF_0:
case PCM512x_PLL_COEFF_1:
@@ -160,6 +180,7 @@ static bool pcm512x_readable(struct device *dev, unsigned int reg)
case PCM512x_RATE_DET_2:
case PCM512x_RATE_DET_3:
case PCM512x_RATE_DET_4:
+ case PCM512x_CLOCK_STATUS:
case PCM512x_ANALOG_MUTE_DET:
case PCM512x_GPIN:
case PCM512x_DIGITAL_MUTE_DET:
@@ -171,6 +192,8 @@ static bool pcm512x_readable(struct device *dev, unsigned int reg)
case PCM512x_VCOM_CTRL_1:
case PCM512x_VCOM_CTRL_2:
case PCM512x_CRAM_CTRL:
+ case PCM512x_FLEX_A:
+ case PCM512x_FLEX_B:
return true;
default:
/* There are 256 raw register addresses */
@@ -187,6 +210,7 @@ static bool pcm512x_volatile(struct device *dev, unsigned int reg)
case PCM512x_RATE_DET_2:
case PCM512x_RATE_DET_3:
case PCM512x_RATE_DET_4:
+ case PCM512x_CLOCK_STATUS:
case PCM512x_ANALOG_MUTE_DET:
case PCM512x_GPIN:
case PCM512x_DIGITAL_MUTE_DET:
@@ -330,6 +354,38 @@ static const struct snd_pcm_hw_constraint_list constraints_slave = {
.list = pcm512x_dai_rates,
};
+static const struct snd_interval pcm512x_dai_ranges_64bpf[] = {
+ {
+ .min = 8000,
+ .max = 195312,
+ }, {
+ .min = 250000,
+ .max = 390625,
+ },
+};
+
+static struct snd_pcm_hw_constraint_ranges constraints_64bpf = {
+ .count = ARRAY_SIZE(pcm512x_dai_ranges_64bpf),
+ .ranges = pcm512x_dai_ranges_64bpf,
+};
+
+static int pcm512x_hw_rule_rate(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_pcm_hw_constraint_ranges *r = rule->private;
+ int frame_size;
+
+ frame_size = snd_soc_params_to_frame_size(params);
+ if (frame_size < 0)
+ return frame_size;
+
+ if (frame_size != 64)
+ return 0;
+
+ return snd_interval_ranges(hw_param_interval(params, rule->var),
+ r->count, r->ranges, r->mask);
+}
+
static int pcm512x_dai_startup_master(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
@@ -345,6 +401,14 @@ static int pcm512x_dai_startup_master(struct snd_pcm_substream *substream,
return PTR_ERR(pcm512x->sclk);
}
+ if (pcm512x->pll_out)
+ return snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ pcm512x_hw_rule_rate,
+ (void *)&constraints_64bpf,
+ SNDRV_PCM_HW_PARAM_FRAME_BITS,
+ SNDRV_PCM_HW_PARAM_CHANNELS, -1);
+
constraints_no_pll = devm_kzalloc(dev, sizeof(*constraints_no_pll),
GFP_KERNEL);
if (!constraints_no_pll)
@@ -445,12 +509,164 @@ static int pcm512x_set_bias_level(struct snd_soc_codec *codec,
return 0;
}
+static unsigned long pcm512x_find_sck(struct snd_soc_dai *dai,
+ unsigned long bclk_rate)
+{
+ struct device *dev = dai->dev;
+ unsigned long sck_rate;
+ int pow2;
+
+ /* 64 MHz <= pll_rate <= 100 MHz, VREF mode */
+ /* 16 MHz <= sck_rate <= 25 MHz, VREF mode */
+
+ /* select sck_rate as a multiple of bclk_rate but still with
+ * as many factors of 2 as possible, as that makes it easier
+ * to find a fast DAC rate
+ */
+ pow2 = 1 << fls((25000000 - 16000000) / bclk_rate);
+ for (; pow2; pow2 >>= 1) {
+ sck_rate = rounddown(25000000, bclk_rate * pow2);
+ if (sck_rate >= 16000000)
+ break;
+ }
+ if (!pow2) {
+ dev_err(dev, "Impossible to generate a suitable SCK\n");
+ return 0;
+ }
+
+ dev_dbg(dev, "sck_rate %lu\n", sck_rate);
+ return sck_rate;
+}
+
+/* pll_rate = pllin_rate * R * J.D / P
+ * 1 <= R <= 16
+ * 1 <= J <= 63
+ * 0 <= D <= 9999
+ * 1 <= P <= 15
+ * 64 MHz <= pll_rate <= 100 MHz
+ * if D == 0
+ * 1 MHz <= pllin_rate / P <= 20 MHz
+ * else if D > 0
+ * 6.667 MHz <= pllin_rate / P <= 20 MHz
+ * 4 <= J <= 11
+ * R = 1
+ */
+static int pcm512x_find_pll_coeff(struct snd_soc_dai *dai,
+ unsigned long pllin_rate,
+ unsigned long pll_rate)
+{
+ struct device *dev = dai->dev;
+ struct snd_soc_codec *codec = dai->codec;
+ struct pcm512x_priv *pcm512x = snd_soc_codec_get_drvdata(codec);
+ unsigned long common;
+ int R, J, D, P;
+ unsigned long K; /* 10000 * J.D */
+ unsigned long num;
+ unsigned long den;
+
+ common = gcd(pll_rate, pllin_rate);
+ dev_dbg(dev, "pll %lu pllin %lu common %lu\n",
+ pll_rate, pllin_rate, common);
+ num = pll_rate / common;
+ den = pllin_rate / common;
+
+ /* pllin_rate / P (or here, den) cannot be greater than 20 MHz */
+ if (pllin_rate / den > 20000000 && num < 8) {
+ num *= 20000000 / (pllin_rate / den);
+ den *= 20000000 / (pllin_rate / den);
+ }
+ dev_dbg(dev, "num / den = %lu / %lu\n", num, den);
+
+ P = den;
+ if (den <= 15 && num <= 16 * 63
+ && 1000000 <= pllin_rate / P && pllin_rate / P <= 20000000) {
+ /* Try the case with D = 0 */
+ D = 0;
+ /* factor 'num' into J and R, such that R <= 16 and J <= 63 */
+ for (R = 16; R; R--) {
+ if (num % R)
+ continue;
+ J = num / R;
+ if (J == 0 || J > 63)
+ continue;
+
+ dev_dbg(dev, "R * J / P = %d * %d / %d\n", R, J, P);
+ pcm512x->real_pll = pll_rate;
+ goto done;
+ }
+ /* no luck */
+ }
+
+ R = 1;
+
+ if (num > 0xffffffffUL / 10000)
+ goto fallback;
+
+ /* Try to find an exact pll_rate using the D > 0 case */
+ common = gcd(10000 * num, den);
+ num = 10000 * num / common;
+ den /= common;
+ dev_dbg(dev, "num %lu den %lu common %lu\n", num, den, common);
+
+ for (P = den; P <= 15; P++) {
+ if (pllin_rate / P < 6667000 || 200000000 < pllin_rate / P)
+ continue;
+ if (num * P % den)
+ continue;
+ K = num * P / den;
+ /* J == 12 is ok if D == 0 */
+ if (K < 40000 || K > 120000)
+ continue;
+
+ J = K / 10000;
+ D = K % 10000;
+ dev_dbg(dev, "J.D / P = %d.%04d / %d\n", J, D, P);
+ pcm512x->real_pll = pll_rate;
+ goto done;
+ }
+
+ /* Fall back to an approximate pll_rate */
+
+fallback:
+ /* find smallest possible P */
+ P = DIV_ROUND_UP(pllin_rate, 20000000);
+ if (!P)
+ P = 1;
+ else if (P > 15) {
+ dev_err(dev, "Need a slower clock as pll-input\n");
+ return -EINVAL;
+ }
+ if (pllin_rate / P < 6667000) {
+ dev_err(dev, "Need a faster clock as pll-input\n");
+ return -EINVAL;
+ }
+ K = DIV_ROUND_CLOSEST_ULL(10000ULL * pll_rate * P, pllin_rate);
+ if (K < 40000)
+ K = 40000;
+ /* J == 12 is ok if D == 0 */
+ if (K > 120000)
+ K = 120000;
+ J = K / 10000;
+ D = K % 10000;
+ dev_dbg(dev, "J.D / P ~ %d.%04d / %d\n", J, D, P);
+ pcm512x->real_pll = DIV_ROUND_DOWN_ULL((u64)K * pllin_rate, 10000 * P);
+
+done:
+ pcm512x->pll_r = R;
+ pcm512x->pll_j = J;
+ pcm512x->pll_d = D;
+ pcm512x->pll_p = P;
+ return 0;
+}
+
static int pcm512x_set_dividers(struct snd_soc_dai *dai,
struct snd_pcm_hw_params *params)
{
struct device *dev = dai->dev;
struct snd_soc_codec *codec = dai->codec;
struct pcm512x_priv *pcm512x = snd_soc_codec_get_drvdata(codec);
+ unsigned long pllin_rate = 0;
+ unsigned long pll_rate;
unsigned long sck_rate;
unsigned long mck_rate;
unsigned long bclk_rate;
@@ -475,11 +691,74 @@ static int pcm512x_set_dividers(struct snd_soc_dai *dai,
return -EINVAL;
}
- sck_rate = clk_get_rate(pcm512x->sclk);
- bclk_div = params->rate_den * 64 / lrclk_div;
- bclk_rate = DIV_ROUND_CLOSEST(sck_rate, bclk_div);
+ if (!pcm512x->pll_out) {
+ sck_rate = clk_get_rate(pcm512x->sclk);
+ bclk_div = params->rate_den * 64 / lrclk_div;
+ bclk_rate = DIV_ROUND_CLOSEST(sck_rate, bclk_div);
- mck_rate = sck_rate;
+ mck_rate = sck_rate;
+ } else {
+ ret = snd_soc_params_to_bclk(params);
+ if (ret < 0) {
+ dev_err(dev, "Failed to find suitable BCLK: %d\n", ret);
+ return ret;
+ }
+ if (ret == 0) {
+ dev_err(dev, "No BCLK?\n");
+ return -EINVAL;
+ }
+ bclk_rate = ret;
+
+ pllin_rate = clk_get_rate(pcm512x->sclk);
+
+ sck_rate = pcm512x_find_sck(dai, bclk_rate);
+ if (!sck_rate)
+ return -EINVAL;
+ pll_rate = 4 * sck_rate;
+
+ ret = pcm512x_find_pll_coeff(dai, pllin_rate, pll_rate);
+ if (ret != 0)
+ return ret;
+
+ ret = regmap_write(pcm512x->regmap,
+ PCM512x_PLL_COEFF_0, pcm512x->pll_p - 1);
+ if (ret != 0) {
+ dev_err(dev, "Failed to write PLL P: %d\n", ret);
+ return ret;
+ }
+
+ ret = regmap_write(pcm512x->regmap,
+ PCM512x_PLL_COEFF_1, pcm512x->pll_j);
+ if (ret != 0) {
+ dev_err(dev, "Failed to write PLL J: %d\n", ret);
+ return ret;
+ }
+
+ ret = regmap_write(pcm512x->regmap,
+ PCM512x_PLL_COEFF_2, pcm512x->pll_d >> 8);
+ if (ret != 0) {
+ dev_err(dev, "Failed to write PLL D msb: %d\n", ret);
+ return ret;
+ }
+
+ ret = regmap_write(pcm512x->regmap,
+ PCM512x_PLL_COEFF_3, pcm512x->pll_d & 0xff);
+ if (ret != 0) {
+ dev_err(dev, "Failed to write PLL D lsb: %d\n", ret);
+ return ret;
+ }
+
+ ret = regmap_write(pcm512x->regmap,
+ PCM512x_PLL_COEFF_4, pcm512x->pll_r - 1);
+ if (ret != 0) {
+ dev_err(dev, "Failed to write PLL R: %d\n", ret);
+ return ret;
+ }
+
+ mck_rate = pcm512x->real_pll;
+
+ bclk_div = DIV_ROUND_CLOSEST(sck_rate, bclk_rate);
+ }
if (bclk_div > 128) {
dev_err(dev, "Failed to find BCLK divider\n");
@@ -616,6 +895,7 @@ static int pcm512x_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_codec *codec = dai->codec;
struct pcm512x_priv *pcm512x = snd_soc_codec_get_drvdata(codec);
int alen;
+ int gpio;
int ret;
dev_dbg(codec->dev, "hw_params %u Hz, %u channels\n",
@@ -676,26 +956,55 @@ static int pcm512x_hw_params(struct snd_pcm_substream *substream,
return ret;
}
- ret = regmap_update_bits(pcm512x->regmap, PCM512x_ERROR_DETECT,
- PCM512x_IDFS | PCM512x_IDBK
- | PCM512x_IDSK | PCM512x_IDCH
- | PCM512x_IDCM | PCM512x_DCAS
- | PCM512x_IPLK,
- PCM512x_IDFS | PCM512x_IDBK
- | PCM512x_IDSK | PCM512x_IDCH
- | PCM512x_DCAS | PCM512x_IPLK);
- if (ret != 0) {
- dev_err(codec->dev,
- "Failed to ignore auto-clock failures: %d\n",
- ret);
- return ret;
- }
+ if (pcm512x->pll_out) {
+ ret = regmap_write(pcm512x->regmap, PCM512x_FLEX_A, 0x11);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to set FLEX_A: %d\n", ret);
+ return ret;
+ }
- ret = regmap_update_bits(pcm512x->regmap, PCM512x_PLL_EN,
- PCM512x_PLLE, 0);
- if (ret != 0) {
- dev_err(codec->dev, "Failed to disable pll: %d\n", ret);
- return ret;
+ ret = regmap_write(pcm512x->regmap, PCM512x_FLEX_B, 0xff);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to set FLEX_B: %d\n", ret);
+ return ret;
+ }
+
+ ret = regmap_update_bits(pcm512x->regmap, PCM512x_ERROR_DETECT,
+ PCM512x_IDFS | PCM512x_IDBK
+ | PCM512x_IDSK | PCM512x_IDCH
+ | PCM512x_IDCM | PCM512x_DCAS
+ | PCM512x_IPLK,
+ PCM512x_IDFS | PCM512x_IDBK
+ | PCM512x_IDSK | PCM512x_IDCH
+ | PCM512x_DCAS);
+ if (ret != 0) {
+ dev_err(codec->dev,
+ "Failed to ignore auto-clock failures: %d\n",
+ ret);
+ return ret;
+ }
+ } else {
+ ret = regmap_update_bits(pcm512x->regmap, PCM512x_ERROR_DETECT,
+ PCM512x_IDFS | PCM512x_IDBK
+ | PCM512x_IDSK | PCM512x_IDCH
+ | PCM512x_IDCM | PCM512x_DCAS
+ | PCM512x_IPLK,
+ PCM512x_IDFS | PCM512x_IDBK
+ | PCM512x_IDSK | PCM512x_IDCH
+ | PCM512x_DCAS | PCM512x_IPLK);
+ if (ret != 0) {
+ dev_err(codec->dev,
+ "Failed to ignore auto-clock failures: %d\n",
+ ret);
+ return ret;
+ }
+
+ ret = regmap_update_bits(pcm512x->regmap, PCM512x_PLL_EN,
+ PCM512x_PLLE, 0);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to disable pll: %d\n", ret);
+ return ret;
+ }
}
ret = pcm512x_set_dividers(dai, params);
@@ -709,6 +1018,33 @@ static int pcm512x_hw_params(struct snd_pcm_substream *substream,
return ret;
}
+ if (pcm512x->pll_out) {
+ ret = regmap_update_bits(pcm512x->regmap, PCM512x_PLL_REF,
+ PCM512x_SREF, PCM512x_SREF_GPIO);
+ if (ret != 0) {
+ dev_err(codec->dev,
+ "Failed to set gpio as pllref: %d\n", ret);
+ return ret;
+ }
+
+ gpio = PCM512x_GREF_GPIO1 + pcm512x->pll_in - 1;
+ ret = regmap_update_bits(pcm512x->regmap, PCM512x_GPIO_PLLIN,
+ PCM512x_GREF, gpio);
+ if (ret != 0) {
+ dev_err(codec->dev,
+ "Failed to set gpio %d as pllin: %d\n",
+ pcm512x->pll_in, ret);
+ return ret;
+ }
+
+ ret = regmap_update_bits(pcm512x->regmap, PCM512x_PLL_EN,
+ PCM512x_PLLE, PCM512x_PLLE);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to enable pll: %d\n", ret);
+ return ret;
+ }
+ }
+
ret = regmap_update_bits(pcm512x->regmap, PCM512x_BCLK_LRCLK_CFG,
PCM512x_BCKP | PCM512x_BCKO | PCM512x_LRKO,
PCM512x_BCKO | PCM512x_LRKO);
@@ -725,6 +1061,45 @@ static int pcm512x_hw_params(struct snd_pcm_substream *substream,
return ret;
}
+ if (pcm512x->pll_out) {
+ gpio = PCM512x_G1OE << (pcm512x->pll_out - 1);
+ ret = regmap_update_bits(pcm512x->regmap, PCM512x_GPIO_EN,
+ gpio, gpio);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to enable gpio %d: %d\n",
+ pcm512x->pll_out, ret);
+ return ret;
+ }
+
+ gpio = PCM512x_GPIO_OUTPUT_1 + pcm512x->pll_out - 1;
+ ret = regmap_update_bits(pcm512x->regmap, gpio,
+ PCM512x_GxSL, PCM512x_GxSL_PLLCK);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to output pll on %d: %d\n",
+ ret, pcm512x->pll_out);
+ return ret;
+ }
+
+ gpio = PCM512x_G1OE << (4 - 1);
+ ret = regmap_update_bits(pcm512x->regmap, PCM512x_GPIO_EN,
+ gpio, gpio);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to enable gpio %d: %d\n",
+ 4, ret);
+ return ret;
+ }
+
+ gpio = PCM512x_GPIO_OUTPUT_1 + 4 - 1;
+ ret = regmap_update_bits(pcm512x->regmap, gpio,
+ PCM512x_GxSL, PCM512x_GxSL_PLLLK);
+ if (ret != 0) {
+ dev_err(codec->dev,
+ "Failed to output pll lock on %d: %d\n",
+ ret, 4);
+ return ret;
+ }
+ }
+
ret = regmap_update_bits(pcm512x->regmap, PCM512x_SYNCHRONIZE,
PCM512x_RQSY, PCM512x_RQSY_HALT);
if (ret != 0) {
@@ -815,6 +1190,7 @@ int pcm512x_probe(struct device *dev, struct regmap *regmap)
{
struct pcm512x_priv *pcm512x;
int i, ret;
+ u32 val;
pcm512x = devm_kzalloc(dev, sizeof(struct pcm512x_priv), GFP_KERNEL);
if (!pcm512x)
@@ -892,6 +1268,42 @@ int pcm512x_probe(struct device *dev, struct regmap *regmap)
pm_runtime_enable(dev);
pm_runtime_idle(dev);
+#ifdef CONFIG_OF
+ if (dev->of_node) {
+ const struct device_node *np = dev->of_node;
+
+ if (of_property_read_u32(np, "pll-in", &val) >= 0) {
+ if (val > 6) {
+ dev_err(dev, "Invalid pll-in\n");
+ ret = -EINVAL;
+ goto err_clk;
+ }
+ pcm512x->pll_in = val;
+ }
+
+ if (of_property_read_u32(np, "pll-out", &val) >= 0) {
+ if (val > 6) {
+ dev_err(dev, "Invalid pll-out\n");
+ ret = -EINVAL;
+ goto err_clk;
+ }
+ pcm512x->pll_out = val;
+ }
+
+ if (!pcm512x->pll_in != !pcm512x->pll_out) {
+ dev_err(dev,
+ "Error: both pll-in and pll-out, or none\n");
+ ret = -EINVAL;
+ goto err_clk;
+ }
+ if (pcm512x->pll_in && pcm512x->pll_in == pcm512x->pll_out) {
+ dev_err(dev, "Error: pll-in == pll-out\n");
+ ret = -EINVAL;
+ goto err_clk;
+ }
+ }
+#endif
+
ret = snd_soc_register_codec(dev, &pcm512x_codec_driver,
&pcm512x_dai, 1);
if (ret != 0) {
diff --git a/sound/soc/codecs/pcm512x.h b/sound/soc/codecs/pcm512x.h
index fa538d5aabf2..eba5adc2cdb1 100644
--- a/sound/soc/codecs/pcm512x.h
+++ b/sound/soc/codecs/pcm512x.h
@@ -38,6 +38,7 @@
#define PCM512x_MASTER_MODE (PCM512x_PAGE_BASE(0) + 12)
#define PCM512x_PLL_REF (PCM512x_PAGE_BASE(0) + 13)
#define PCM512x_DAC_REF (PCM512x_PAGE_BASE(0) + 14)
+#define PCM512x_GPIO_PLLIN (PCM512x_PAGE_BASE(0) + 18)
#define PCM512x_SYNCHRONIZE (PCM512x_PAGE_BASE(0) + 19)
#define PCM512x_PLL_COEFF_0 (PCM512x_PAGE_BASE(0) + 20)
#define PCM512x_PLL_COEFF_1 (PCM512x_PAGE_BASE(0) + 21)
@@ -79,6 +80,7 @@
#define PCM512x_RATE_DET_2 (PCM512x_PAGE_BASE(0) + 92)
#define PCM512x_RATE_DET_3 (PCM512x_PAGE_BASE(0) + 93)
#define PCM512x_RATE_DET_4 (PCM512x_PAGE_BASE(0) + 94)
+#define PCM512x_CLOCK_STATUS (PCM512x_PAGE_BASE(0) + 95)
#define PCM512x_ANALOG_MUTE_DET (PCM512x_PAGE_BASE(0) + 108)
#define PCM512x_GPIN (PCM512x_PAGE_BASE(0) + 119)
#define PCM512x_DIGITAL_MUTE_DET (PCM512x_PAGE_BASE(0) + 120)
@@ -93,7 +95,10 @@
#define PCM512x_CRAM_CTRL (PCM512x_PAGE_BASE(44) + 1)
-#define PCM512x_MAX_REGISTER (PCM512x_PAGE_BASE(44) + 1)
+#define PCM512x_FLEX_A (PCM512x_PAGE_BASE(253) + 63)
+#define PCM512x_FLEX_B (PCM512x_PAGE_BASE(253) + 64)
+
+#define PCM512x_MAX_REGISTER (PCM512x_PAGE_BASE(253) + 64)
/* Page 0, Register 1 - reset */
#define PCM512x_RSTR (1 << 0)
@@ -121,6 +126,14 @@
#define PCM512x_DEMP (1 << 4)
#define PCM512x_DEMP_SHIFT 4
+/* Page 0, Register 8 - GPIO output enable */
+#define PCM512x_G1OE (1 << 0)
+#define PCM512x_G2OE (1 << 1)
+#define PCM512x_G3OE (1 << 2)
+#define PCM512x_G4OE (1 << 3)
+#define PCM512x_G5OE (1 << 4)
+#define PCM512x_G6OE (1 << 5)
+
/* Page 0, Register 9 - BCK, LRCLK configuration */
#define PCM512x_LRKO (1 << 0)
#define PCM512x_LRKO_SHIFT 0
@@ -150,6 +163,16 @@
#define PCM512x_SDAC_SCK (3 << 4)
#define PCM512x_SDAC_BCK (4 << 4)
+/* Page 0, Register 18 - GPIO source for PLL */
+#define PCM512x_GREF (7 << 0)
+#define PCM512x_GREF_SHIFT 0
+#define PCM512x_GREF_GPIO1 (0 << 0)
+#define PCM512x_GREF_GPIO2 (1 << 0)
+#define PCM512x_GREF_GPIO3 (2 << 0)
+#define PCM512x_GREF_GPIO4 (3 << 0)
+#define PCM512x_GREF_GPIO5 (4 << 0)
+#define PCM512x_GREF_GPIO6 (5 << 0)
+
/* Page 0, Register 19 - synchronize */
#define PCM512x_RQSY (1 << 0)
#define PCM512x_RQSY_RESUME (0 << 0)
@@ -209,6 +232,25 @@
#define PCM512x_AMLE_SHIFT 1
#define PCM512x_AMRE_SHIFT 0
+/* Page 0, Register 80-85, GPIO output selection */
+#define PCM512x_GxSL (31 << 0)
+#define PCM512x_GxSL_SHIFT 0
+#define PCM512x_GxSL_OFF (0 << 0)
+#define PCM512x_GxSL_DSP (1 << 0)
+#define PCM512x_GxSL_REG (2 << 0)
+#define PCM512x_GxSL_AMUTB (3 << 0)
+#define PCM512x_GxSL_AMUTL (4 << 0)
+#define PCM512x_GxSL_AMUTR (5 << 0)
+#define PCM512x_GxSL_CLKI (6 << 0)
+#define PCM512x_GxSL_SDOUT (7 << 0)
+#define PCM512x_GxSL_ANMUL (8 << 0)
+#define PCM512x_GxSL_ANMUR (9 << 0)
+#define PCM512x_GxSL_PLLLK (10 << 0)
+#define PCM512x_GxSL_CPCLK (11 << 0)
+#define PCM512x_GxSL_UV0_7 (14 << 0)
+#define PCM512x_GxSL_UV0_3 (15 << 0)
+#define PCM512x_GxSL_PLLCK (16 << 0)
+
/* Page 1, Register 2 - analog volume control */
#define PCM512x_RAGN_SHIFT 0
#define PCM512x_LAGN_SHIFT 4
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 05:50:39 +0000