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| author | Syed Saba Kareem <Syed.SabaKareem@amd.com> | 2023-10-21 20:20:47 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-10-25 17:21:48 +0100 |
| commit | 3a94c8ad0aae2b14a55059869871ea2d199af489 (patch) | |
| tree | 1ff0bb3dccdb880de26d65e38a0bc0c19b41eada /sound/soc/amd/acp/acp-legacy-common.c | |
| parent | d4c2d5391d7efc29fdd59d54355526c9ace16bec (diff) | |
| download | linux-3a94c8ad0aae2b14a55059869871ea2d199af489.tar.gz linux-3a94c8ad0aae2b14a55059869871ea2d199af489.tar.bz2 linux-3a94c8ad0aae2b14a55059869871ea2d199af489.zip | |
ASoC: amd: acp: add code for scanning acp pdm controller
Add common code for scanning acp pdm controller and create
platform device for the same.
Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@amd.com>
Link: https://lore.kernel.org/r/20231021145110.478744-6-Syed.SabaKareem@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/amd/acp/acp-legacy-common.c')
| -rw-r--r-- | sound/soc/amd/acp/acp-legacy-common.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/sound/soc/amd/acp/acp-legacy-common.c b/sound/soc/amd/acp/acp-legacy-common.c index e16ef94e6336..af85a153a770 100644 --- a/sound/soc/amd/acp/acp-legacy-common.c +++ b/sound/soc/amd/acp/acp-legacy-common.c @@ -16,6 +16,10 @@ #include <linux/pci.h> #include <linux/export.h> +#define ACP_RENOIR_PDM_ADDR 0x02 +#define ACP_REMBRANDT_PDM_ADDR 0x03 +#define ACP63_PDM_ADDR 0x02 + void acp_enable_interrupts(struct acp_dev_data *adata) { struct acp_resource *rsrc = adata->rsrc; @@ -348,4 +352,52 @@ int smn_read(struct pci_dev *dev, u32 smn_addr) } EXPORT_SYMBOL_NS_GPL(smn_read, SND_SOC_ACP_COMMON); +int check_acp_pdm(struct pci_dev *pci, struct acp_chip_info *chip) +{ + struct acpi_device *pdm_dev; + const union acpi_object *obj; + u32 pdm_addr, val; + + val = readl(chip->base + ACP_PIN_CONFIG); + switch (val) { + case ACP_CONFIG_4: + case ACP_CONFIG_5: + case ACP_CONFIG_6: + case ACP_CONFIG_7: + case ACP_CONFIG_8: + case ACP_CONFIG_10: + case ACP_CONFIG_11: + case ACP_CONFIG_12: + case ACP_CONFIG_13: + case ACP_CONFIG_14: + break; + default: + return -EINVAL; + } + + switch (chip->acp_rev) { + case ACP3X_DEV: + pdm_addr = ACP_RENOIR_PDM_ADDR; + break; + case ACP6X_DEV: + pdm_addr = ACP_REMBRANDT_PDM_ADDR; + break; + case ACP63_DEV: + pdm_addr = ACP63_PDM_ADDR; + break; + default: + return -EINVAL; + } + + pdm_dev = acpi_find_child_device(ACPI_COMPANION(&pci->dev), pdm_addr, 0); + if (pdm_dev) { + if (!acpi_dev_get_property(pdm_dev, "acp-audio-device-type", + ACPI_TYPE_INTEGER, &obj) && + obj->integer.value == pdm_addr) + return 0; + } + return -ENODEV; +} +EXPORT_SYMBOL_NS_GPL(check_acp_pdm, SND_SOC_ACP_COMMON); + MODULE_LICENSE("Dual BSD/GPL"); |