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path: root/sound/soc/amd/raven/pci-acp3x.c
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Diffstat (limited to 'sound/soc/amd/raven/pci-acp3x.c')
-rw-r--r--sound/soc/amd/raven/pci-acp3x.c264
1 files changed, 231 insertions, 33 deletions
diff --git a/sound/soc/amd/raven/pci-acp3x.c b/sound/soc/amd/raven/pci-acp3x.c
index facec2472b34..65330bb50e74 100644
--- a/sound/soc/amd/raven/pci-acp3x.c
+++ b/sound/soc/amd/raven/pci-acp3x.c
@@ -9,6 +9,8 @@
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
+#include <linux/pm_runtime.h>
+#include <linux/delay.h>
#include "acp3x.h"
@@ -16,17 +18,120 @@ struct acp3x_dev_data {
void __iomem *acp3x_base;
bool acp3x_audio_mode;
struct resource *res;
- struct platform_device *pdev;
+ struct platform_device *pdev[ACP3x_DEVS];
};
+static int acp3x_power_on(void __iomem *acp3x_base)
+{
+ u32 val;
+ int timeout;
+
+ val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS);
+
+ if (val == 0)
+ return val;
+
+ if (!((val & ACP_PGFSM_STATUS_MASK) ==
+ ACP_POWER_ON_IN_PROGRESS))
+ rv_writel(ACP_PGFSM_CNTL_POWER_ON_MASK,
+ acp3x_base + mmACP_PGFSM_CONTROL);
+ timeout = 0;
+ while (++timeout < 500) {
+ val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS);
+ if (!val)
+ return 0;
+ udelay(1);
+ }
+ return -ETIMEDOUT;
+}
+
+static int acp3x_power_off(void __iomem *acp3x_base)
+{
+ u32 val;
+ int timeout;
+
+ rv_writel(ACP_PGFSM_CNTL_POWER_OFF_MASK,
+ acp3x_base + mmACP_PGFSM_CONTROL);
+ timeout = 0;
+ while (++timeout < 500) {
+ val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS);
+ if ((val & ACP_PGFSM_STATUS_MASK) == ACP_POWERED_OFF)
+ return 0;
+ udelay(1);
+ }
+ return -ETIMEDOUT;
+}
+
+static int acp3x_reset(void __iomem *acp3x_base)
+{
+ u32 val;
+ int timeout;
+
+ rv_writel(1, acp3x_base + mmACP_SOFT_RESET);
+ timeout = 0;
+ while (++timeout < 500) {
+ val = rv_readl(acp3x_base + mmACP_SOFT_RESET);
+ if (val & ACP3x_SOFT_RESET__SoftResetAudDone_MASK)
+ break;
+ cpu_relax();
+ }
+ rv_writel(0, acp3x_base + mmACP_SOFT_RESET);
+ timeout = 0;
+ while (++timeout < 500) {
+ val = rv_readl(acp3x_base + mmACP_SOFT_RESET);
+ if (!val)
+ return 0;
+ cpu_relax();
+ }
+ return -ETIMEDOUT;
+}
+
+static int acp3x_init(void __iomem *acp3x_base)
+{
+ int ret;
+
+ /* power on */
+ ret = acp3x_power_on(acp3x_base);
+ if (ret) {
+ pr_err("ACP3x power on failed\n");
+ return ret;
+ }
+ /* Reset */
+ ret = acp3x_reset(acp3x_base);
+ if (ret) {
+ pr_err("ACP3x reset failed\n");
+ return ret;
+ }
+ return 0;
+}
+
+static int acp3x_deinit(void __iomem *acp3x_base)
+{
+ int ret;
+
+ /* Reset */
+ ret = acp3x_reset(acp3x_base);
+ if (ret) {
+ pr_err("ACP3x reset failed\n");
+ return ret;
+ }
+ /* power off */
+ ret = acp3x_power_off(acp3x_base);
+ if (ret) {
+ pr_err("ACP3x power off failed\n");
+ return ret;
+ }
+ return 0;
+}
+
static int snd_acp3x_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
- int ret;
- u32 addr, val;
struct acp3x_dev_data *adata;
- struct platform_device_info pdevinfo;
+ struct platform_device_info pdevinfo[ACP3x_DEVS];
unsigned int irqflags;
+ int ret, i;
+ u32 addr, val;
if (pci_enable_device(pci)) {
dev_err(&pci->dev, "pci_enable_device failed\n");
@@ -56,23 +161,27 @@ static int snd_acp3x_probe(struct pci_dev *pci,
irqflags = 0;
addr = pci_resource_start(pci, 0);
- adata->acp3x_base = ioremap(addr, pci_resource_len(pci, 0));
+ adata->acp3x_base = devm_ioremap(&pci->dev, addr,
+ pci_resource_len(pci, 0));
if (!adata->acp3x_base) {
ret = -ENOMEM;
- goto release_regions;
+ goto disable_msi;
}
pci_set_master(pci);
pci_set_drvdata(pci, adata);
+ ret = acp3x_init(adata->acp3x_base);
+ if (ret)
+ goto disable_msi;
val = rv_readl(adata->acp3x_base + mmACP_I2S_PIN_CONFIG);
switch (val) {
case I2S_MODE:
adata->res = devm_kzalloc(&pci->dev,
- sizeof(struct resource) * 2,
+ sizeof(struct resource) * 4,
GFP_KERNEL);
if (!adata->res) {
ret = -ENOMEM;
- goto unmap_mmio;
+ goto de_init;
}
adata->res[0].name = "acp3x_i2s_iomem";
@@ -80,40 +189,82 @@ static int snd_acp3x_probe(struct pci_dev *pci,
adata->res[0].start = addr;
adata->res[0].end = addr + (ACP3x_REG_END - ACP3x_REG_START);
- adata->res[1].name = "acp3x_i2s_irq";
- adata->res[1].flags = IORESOURCE_IRQ;
- adata->res[1].start = pci->irq;
- adata->res[1].end = pci->irq;
+ adata->res[1].name = "acp3x_i2s_sp";
+ adata->res[1].flags = IORESOURCE_MEM;
+ adata->res[1].start = addr + ACP3x_I2STDM_REG_START;
+ adata->res[1].end = addr + ACP3x_I2STDM_REG_END;
+
+ adata->res[2].name = "acp3x_i2s_bt";
+ adata->res[2].flags = IORESOURCE_MEM;
+ adata->res[2].start = addr + ACP3x_BT_TDM_REG_START;
+ adata->res[2].end = addr + ACP3x_BT_TDM_REG_END;
+
+ adata->res[3].name = "acp3x_i2s_irq";
+ adata->res[3].flags = IORESOURCE_IRQ;
+ adata->res[3].start = pci->irq;
+ adata->res[3].end = adata->res[3].start;
adata->acp3x_audio_mode = ACP3x_I2S_MODE;
memset(&pdevinfo, 0, sizeof(pdevinfo));
- pdevinfo.name = "acp3x_rv_i2s";
- pdevinfo.id = 0;
- pdevinfo.parent = &pci->dev;
- pdevinfo.num_res = 2;
- pdevinfo.res = adata->res;
- pdevinfo.data = &irqflags;
- pdevinfo.size_data = sizeof(irqflags);
-
- adata->pdev = platform_device_register_full(&pdevinfo);
- if (IS_ERR(adata->pdev)) {
- dev_err(&pci->dev, "cannot register %s device\n",
- pdevinfo.name);
- ret = PTR_ERR(adata->pdev);
- goto unmap_mmio;
+ pdevinfo[0].name = "acp3x_rv_i2s_dma";
+ pdevinfo[0].id = 0;
+ pdevinfo[0].parent = &pci->dev;
+ pdevinfo[0].num_res = 4;
+ pdevinfo[0].res = &adata->res[0];
+ pdevinfo[0].data = &irqflags;
+ pdevinfo[0].size_data = sizeof(irqflags);
+
+ pdevinfo[1].name = "acp3x_i2s_playcap";
+ pdevinfo[1].id = 0;
+ pdevinfo[1].parent = &pci->dev;
+ pdevinfo[1].num_res = 1;
+ pdevinfo[1].res = &adata->res[1];
+
+ pdevinfo[2].name = "acp3x_i2s_playcap";
+ pdevinfo[2].id = 1;
+ pdevinfo[2].parent = &pci->dev;
+ pdevinfo[2].num_res = 1;
+ pdevinfo[2].res = &adata->res[1];
+
+ pdevinfo[3].name = "acp3x_i2s_playcap";
+ pdevinfo[3].id = 2;
+ pdevinfo[3].parent = &pci->dev;
+ pdevinfo[3].num_res = 1;
+ pdevinfo[3].res = &adata->res[2];
+ for (i = 0; i < ACP3x_DEVS; i++) {
+ adata->pdev[i] =
+ platform_device_register_full(&pdevinfo[i]);
+ if (IS_ERR(adata->pdev[i])) {
+ dev_err(&pci->dev, "cannot register %s device\n",
+ pdevinfo[i].name);
+ ret = PTR_ERR(adata->pdev[i]);
+ goto unregister_devs;
+ }
}
break;
default:
dev_err(&pci->dev, "Invalid ACP audio mode : %d\n", val);
ret = -ENODEV;
- goto unmap_mmio;
+ goto disable_msi;
}
+ pm_runtime_set_autosuspend_delay(&pci->dev, 2000);
+ pm_runtime_use_autosuspend(&pci->dev);
+ pm_runtime_set_active(&pci->dev);
+ pm_runtime_put_noidle(&pci->dev);
+ pm_runtime_enable(&pci->dev);
+ pm_runtime_allow(&pci->dev);
return 0;
-unmap_mmio:
+unregister_devs:
+ if (val == I2S_MODE)
+ for (i = 0; i < ACP3x_DEVS; i++)
+ platform_device_unregister(adata->pdev[i]);
+de_init:
+ if (acp3x_deinit(adata->acp3x_base))
+ dev_err(&pci->dev, "ACP de-init failed\n");
+disable_msi:
pci_disable_msi(pci);
- iounmap(adata->acp3x_base);
release_regions:
pci_release_regions(pci);
disable_pci:
@@ -122,13 +273,56 @@ disable_pci:
return ret;
}
-static void snd_acp3x_remove(struct pci_dev *pci)
+static int snd_acp3x_suspend(struct device *dev)
+{
+ int ret;
+ struct acp3x_dev_data *adata;
+
+ adata = dev_get_drvdata(dev);
+ ret = acp3x_deinit(adata->acp3x_base);
+ if (ret)
+ dev_err(dev, "ACP de-init failed\n");
+ else
+ dev_dbg(dev, "ACP de-initialized\n");
+
+ return 0;
+}
+
+static int snd_acp3x_resume(struct device *dev)
{
- struct acp3x_dev_data *adata = pci_get_drvdata(pci);
+ int ret;
+ struct acp3x_dev_data *adata;
- platform_device_unregister(adata->pdev);
- iounmap(adata->acp3x_base);
+ adata = dev_get_drvdata(dev);
+ ret = acp3x_init(adata->acp3x_base);
+ if (ret) {
+ dev_err(dev, "ACP init failed\n");
+ return ret;
+ }
+ return 0;
+}
+static const struct dev_pm_ops acp3x_pm = {
+ .runtime_suspend = snd_acp3x_suspend,
+ .runtime_resume = snd_acp3x_resume,
+ .resume = snd_acp3x_resume,
+};
+
+static void snd_acp3x_remove(struct pci_dev *pci)
+{
+ struct acp3x_dev_data *adata;
+ int i, ret;
+
+ adata = pci_get_drvdata(pci);
+ if (adata->acp3x_audio_mode == ACP3x_I2S_MODE) {
+ for (i = 0; i < ACP3x_DEVS; i++)
+ platform_device_unregister(adata->pdev[i]);
+ }
+ ret = acp3x_deinit(adata->acp3x_base);
+ if (ret)
+ dev_err(&pci->dev, "ACP de-init failed\n");
+ pm_runtime_disable(&pci->dev);
+ pm_runtime_get_noresume(&pci->dev);
pci_disable_msi(pci);
pci_release_regions(pci);
pci_disable_device(pci);
@@ -147,10 +341,14 @@ static struct pci_driver acp3x_driver = {
.id_table = snd_acp3x_ids,
.probe = snd_acp3x_probe,
.remove = snd_acp3x_remove,
+ .driver = {
+ .pm = &acp3x_pm,
+ }
};
module_pci_driver(acp3x_driver);
+MODULE_AUTHOR("Vishnuvardhanrao.Ravulapati@amd.com");
MODULE_AUTHOR("Maruthi.Bayyavarapu@amd.com");
MODULE_DESCRIPTION("AMD ACP3x PCI driver");
MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-07 20:56:39 +0000