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ASoC: amd: add platform devices for acp6.2 pdm driver and dmic driver 

ACP6.2 IP has PDM decoder block.
Create a platform device for it, so that the PDM platform driver
can be bound to this device.
Pass PCI resources like MMIO to this platform device.

Create a platform device for generic dmic codec driver.

Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@amd.com>
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20220827165657.2343818-5-Syed.SabaKareem@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Syed Saba Kareem 2022-08-27 22:26:48 +05:30 committed by Mark Brown
parent 9766bb62cf
commit 515ee2574a
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 102 additions and 2 deletions
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23
sound/soc/amd/ps/acp62.h
View File

@ -8,6 +8,10 @@
#include <sound/acp62_chip_offset_byte.h>
#define ACP_DEVICE_ID 0x15E2
#define ACP6x_REG_START 0x1240000
#define ACP6x_REG_END 0x1250200
#define ACP6x_DEVS 2
#define ACP6x_PDM_MODE 1
#define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK 0x00010001
#define ACP_PGFSM_CNTL_POWER_ON_MASK 1
@ -21,6 +25,25 @@
#define ACP_ERROR_MASK 0x20000000
#define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF
enum acp_config {
ACP_CONFIG_0 = 0,
ACP_CONFIG_1,
ACP_CONFIG_2,
ACP_CONFIG_3,
ACP_CONFIG_4,
ACP_CONFIG_5,
ACP_CONFIG_6,
ACP_CONFIG_7,
ACP_CONFIG_8,
ACP_CONFIG_9,
ACP_CONFIG_10,
ACP_CONFIG_11,
ACP_CONFIG_12,
ACP_CONFIG_13,
ACP_CONFIG_14,
ACP_CONFIG_15,
};
static inline u32 acp62_readl(void __iomem *base_addr)
{
return readl(base_addr);

81
sound/soc/amd/ps/pci-ps.c
View File

@ -9,11 +9,16 @@
#include <linux/module.h>
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/acpi.h>
#include "acp62.h"
struct acp62_dev_data {
void __iomem *acp62_base;
struct resource *res;
bool acp62_audio_mode;
struct platform_device *pdev[ACP6x_DEVS];
};
static int acp62_power_on(void __iomem *acp_base)
@ -114,8 +119,12 @@ static int snd_acp62_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
struct acp62_dev_data *adata;
struct platform_device_info pdevinfo[ACP6x_DEVS];
int index, ret;
int val = 0x00;
struct acpi_device *adev;
const union acpi_object *obj;
u32 addr;
int ret;
/* Pink Sardine device check */
switch (pci->revision) {
@ -154,8 +163,72 @@ static int snd_acp62_probe(struct pci_dev *pci,
ret = acp62_init(adata->acp62_base, &pci->dev);
if (ret)
goto release_regions;
val = acp62_readl(adata->acp62_base + ACP_PIN_CONFIG);
switch (val) {
case ACP_CONFIG_0:
case ACP_CONFIG_1:
case ACP_CONFIG_2:
case ACP_CONFIG_3:
case ACP_CONFIG_9:
case ACP_CONFIG_15:
dev_info(&pci->dev, "Audio Mode %d\n", val);
break;
default:
/* Checking DMIC hardware*/
adev = acpi_find_child_device(ACPI_COMPANION(&pci->dev), 0x02, 0);
if (!adev)
break;
if (!acpi_dev_get_property(adev, "acp-audio-device-type",
ACPI_TYPE_INTEGER, &obj) &&
obj->integer.value == 2) {
adata->res = devm_kzalloc(&pci->dev, sizeof(struct resource), GFP_KERNEL);
if (!adata->res) {
ret = -ENOMEM;
goto de_init;
}
adata->res->name = "acp_iomem";
adata->res->flags = IORESOURCE_MEM;
adata->res->start = addr;
adata->res->end = addr + (ACP6x_REG_END - ACP6x_REG_START);
adata->acp62_audio_mode = ACP6x_PDM_MODE;
memset(&pdevinfo, 0, sizeof(pdevinfo));
pdevinfo[0].name = "acp_ps_pdm_dma";
pdevinfo[0].id = 0;
pdevinfo[0].parent = &pci->dev;
pdevinfo[0].num_res = 1;
pdevinfo[0].res = adata->res;
pdevinfo[1].name = "dmic-codec";
pdevinfo[1].id = 0;
pdevinfo[1].parent = &pci->dev;
for (index = 0; index < ACP6x_DEVS; index++) {
adata->pdev[index] =
platform_device_register_full(&pdevinfo[index]);
if (IS_ERR(adata->pdev[index])) {
dev_err(&pci->dev,
"cannot register %s device\n",
pdevinfo[index].name);
ret = PTR_ERR(adata->pdev[index]);
goto unregister_devs;
}
}
}
break;
}
return 0;
unregister_devs:
for (--index; index >= 0; index--)
platform_device_unregister(adata->pdev[index]);
de_init:
if (acp62_deinit(adata->acp62_base, &pci->dev))
dev_err(&pci->dev, "ACP de-init failed\n");
release_regions:
pci_release_regions(pci);
disable_pci:
@ -167,9 +240,13 @@ disable_pci:
static void snd_acp62_remove(struct pci_dev *pci)
{
struct acp62_dev_data *adata;
int ret;
int ret, index;
adata = pci_get_drvdata(pci);
if (adata->acp62_audio_mode == ACP6x_PDM_MODE) {
for (index = 0; index < ACP6x_DEVS; index++)
platform_device_unregister(adata->pdev[index]);
}
ret = acp62_deinit(adata->acp62_base, &pci->dev);
if (ret)
dev_err(&pci->dev, "ACP de-init failed\n");