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 --- sound/soc/amd/ps/acp62.h | 23 +++++++++++ sound/soc/amd/ps/pci-ps.c | 81 ++++++++++++++++++++++++++++++++++++++- 2 files changed, 102 insertions(+), 2 deletions(-)
diff --git a/sound/soc/amd/ps/acp62.h b/sound/soc/amd/ps/acp62.h index 1f5e7d758f9f..79ad1bdb5b38 100644 --- a/sound/soc/amd/ps/acp62.h +++ b/sound/soc/amd/ps/acp62.h @@ -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); diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c index a87dbf8847e6..adad29667791 100644 --- a/sound/soc/amd/ps/pci-ps.c +++ b/sound/soc/amd/ps/pci-ps.c @@ -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 @@ static int snd_acp62_probe(struct pci_dev *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");