Unverified Commit fc329c1d authored by Vijendar Mukunda's avatar Vijendar Mukunda Committed by Mark Brown
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ASoC: amd: add platform devices for acp6x pdm driver and dmic driver 



ACP6.x 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: default avatarVijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20211018112044.1705805-5-Vijendar.Mukunda@amd.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 8c7161f2

sound/soc/amd/yc/acp6x.h

+23 −0
Original line number Diff line number Diff line
@@ -9,6 +9,10 @@ 


#define ACP_DEVICE_ID 0x15E2

#define ACP6x_PHY_BASE_ADDRESS 0x1240000

#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
@@ -22,6 +26,25 @@ 
#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 acp6x_readl(void __iomem *base_addr)

{

	return readl(base_addr - ACP6x_PHY_BASE_ADDRESS);

sound/soc/amd/yc/pci-acp6x.c

+66 −2
Original line number Diff line number Diff line
@@ -9,11 +9,15 @@ 
#include <linux/module.h>

#include <linux/io.h>

#include <linux/delay.h>

#include <linux/platform_device.h>



#include "acp6x.h"



struct acp6x_dev_data {

	void __iomem *acp6x_base;

	struct resource *res;

	bool acp6x_audio_mode;

	struct platform_device *pdev[ACP6x_DEVS];

};



static int acp6x_power_on(void __iomem *acp_base)
@@ -117,7 +121,9 @@ static int snd_acp6x_probe(struct pci_dev *pci, 
			   const struct pci_device_id *pci_id)

{

	struct acp6x_dev_data *adata;

	int ret;

	struct platform_device_info pdevinfo[ACP6x_DEVS];

	int ret, index;

	int val = 0x00;

	u32 addr;



	/* Yellow Carp device check */
@@ -154,8 +160,62 @@ static int snd_acp6x_probe(struct pci_dev *pci, 
	ret = acp6x_init(adata->acp6x_base);

	if (ret)

		goto release_regions;

	val = acp6x_readl(adata->acp6x_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:

		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->acp6x_audio_mode = ACP6x_PDM_MODE;



		memset(&pdevinfo, 0, sizeof(pdevinfo));

		pdevinfo[0].name = "acp_yc_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 (acp6x_deinit(adata->acp6x_base))

		dev_err(&pci->dev, "ACP de-init failed\n");

release_regions:

	pci_release_regions(pci);

disable_pci:
@@ -167,9 +227,13 @@ static int snd_acp6x_probe(struct pci_dev *pci, 
static void snd_acp6x_remove(struct pci_dev *pci)

{

	struct acp6x_dev_data *adata;

	int ret;

	int ret, index;



	adata = pci_get_drvdata(pci);

	if (adata->acp6x_audio_mode == ACP6x_PDM_MODE) {

		for (index = 0; index < ACP6x_DEVS; index++)

			platform_device_unregister(adata->pdev[index]);

	}

	ret = acp6x_deinit(adata->acp6x_base);

	if (ret)

		dev_err(&pci->dev, "ACP de-init failed\n");