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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>
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9766bb62cf
commit
515ee2574a
2 changed files with 102 additions and 2 deletions
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@ -8,6 +8,10 @@
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#include <sound/acp62_chip_offset_byte.h>
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#define ACP_DEVICE_ID 0x15E2
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#define ACP6x_REG_START 0x1240000
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#define ACP6x_REG_END 0x1250200
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#define ACP6x_DEVS 2
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#define ACP6x_PDM_MODE 1
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#define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK 0x00010001
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#define ACP_PGFSM_CNTL_POWER_ON_MASK 1
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@ -21,6 +25,25 @@
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#define ACP_ERROR_MASK 0x20000000
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#define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF
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enum acp_config {
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ACP_CONFIG_0 = 0,
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ACP_CONFIG_1,
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ACP_CONFIG_2,
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ACP_CONFIG_3,
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ACP_CONFIG_4,
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ACP_CONFIG_5,
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ACP_CONFIG_6,
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ACP_CONFIG_7,
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ACP_CONFIG_8,
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ACP_CONFIG_9,
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ACP_CONFIG_10,
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ACP_CONFIG_11,
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ACP_CONFIG_12,
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ACP_CONFIG_13,
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ACP_CONFIG_14,
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ACP_CONFIG_15,
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};
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static inline u32 acp62_readl(void __iomem *base_addr)
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{
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return readl(base_addr);
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@ -9,11 +9,16 @@
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#include <linux/module.h>
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#include <linux/io.h>
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#include <linux/delay.h>
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#include <linux/platform_device.h>
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#include <linux/acpi.h>
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#include "acp62.h"
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struct acp62_dev_data {
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void __iomem *acp62_base;
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struct resource *res;
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bool acp62_audio_mode;
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struct platform_device *pdev[ACP6x_DEVS];
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};
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static int acp62_power_on(void __iomem *acp_base)
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@ -114,8 +119,12 @@ static int snd_acp62_probe(struct pci_dev *pci,
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const struct pci_device_id *pci_id)
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{
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struct acp62_dev_data *adata;
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struct platform_device_info pdevinfo[ACP6x_DEVS];
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int index, ret;
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int val = 0x00;
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struct acpi_device *adev;
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const union acpi_object *obj;
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u32 addr;
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int ret;
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/* Pink Sardine device check */
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switch (pci->revision) {
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@ -154,8 +163,72 @@ static int snd_acp62_probe(struct pci_dev *pci,
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ret = acp62_init(adata->acp62_base, &pci->dev);
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if (ret)
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goto release_regions;
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val = acp62_readl(adata->acp62_base + ACP_PIN_CONFIG);
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switch (val) {
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case ACP_CONFIG_0:
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case ACP_CONFIG_1:
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case ACP_CONFIG_2:
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case ACP_CONFIG_3:
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case ACP_CONFIG_9:
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case ACP_CONFIG_15:
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dev_info(&pci->dev, "Audio Mode %d\n", val);
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break;
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default:
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/* Checking DMIC hardware*/
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adev = acpi_find_child_device(ACPI_COMPANION(&pci->dev), 0x02, 0);
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if (!adev)
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break;
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if (!acpi_dev_get_property(adev, "acp-audio-device-type",
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ACPI_TYPE_INTEGER, &obj) &&
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obj->integer.value == 2) {
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adata->res = devm_kzalloc(&pci->dev, sizeof(struct resource), GFP_KERNEL);
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if (!adata->res) {
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ret = -ENOMEM;
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goto de_init;
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}
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adata->res->name = "acp_iomem";
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adata->res->flags = IORESOURCE_MEM;
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adata->res->start = addr;
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adata->res->end = addr + (ACP6x_REG_END - ACP6x_REG_START);
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adata->acp62_audio_mode = ACP6x_PDM_MODE;
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memset(&pdevinfo, 0, sizeof(pdevinfo));
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pdevinfo[0].name = "acp_ps_pdm_dma";
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pdevinfo[0].id = 0;
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pdevinfo[0].parent = &pci->dev;
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pdevinfo[0].num_res = 1;
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pdevinfo[0].res = adata->res;
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pdevinfo[1].name = "dmic-codec";
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pdevinfo[1].id = 0;
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pdevinfo[1].parent = &pci->dev;
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for (index = 0; index < ACP6x_DEVS; index++) {
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adata->pdev[index] =
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platform_device_register_full(&pdevinfo[index]);
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if (IS_ERR(adata->pdev[index])) {
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dev_err(&pci->dev,
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"cannot register %s device\n",
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pdevinfo[index].name);
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ret = PTR_ERR(adata->pdev[index]);
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goto unregister_devs;
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}
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}
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}
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break;
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}
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return 0;
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unregister_devs:
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for (--index; index >= 0; index--)
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platform_device_unregister(adata->pdev[index]);
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de_init:
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if (acp62_deinit(adata->acp62_base, &pci->dev))
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dev_err(&pci->dev, "ACP de-init failed\n");
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release_regions:
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pci_release_regions(pci);
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disable_pci:
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@ -167,9 +240,13 @@ static int snd_acp62_probe(struct pci_dev *pci,
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static void snd_acp62_remove(struct pci_dev *pci)
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{
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struct acp62_dev_data *adata;
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int ret;
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int ret, index;
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adata = pci_get_drvdata(pci);
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if (adata->acp62_audio_mode == ACP6x_PDM_MODE) {
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for (index = 0; index < ACP6x_DEVS; index++)
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platform_device_unregister(adata->pdev[index]);
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}
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ret = acp62_deinit(adata->acp62_base, &pci->dev);
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if (ret)
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dev_err(&pci->dev, "ACP de-init failed\n");
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