diff options
| author | Syed Saba Kareem <Syed.SabaKareem@amd.com> | 2023-06-26 19:25:06 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-07-09 22:47:34 +0100 |
| commit | 7ad6fb9dd1ca63f9f36e413036f36f075cdaec4a (patch) | |
| tree | 274d69f4225e68f6df35b32586af3cd8a432b1d1 /sound/soc/amd | |
| parent | e61b415515d3db57dce3af3e4a0441f08d8d8f15 (diff) | |
ASoC: amd: acp: add acp i2s master clock generation for rembrandt platform
Add acp i2s master clock generation logic for rembrandt platform.
Signed-off-by: V Sujith Kumar Reddy <vsujithkumar.reddy@amd.com>
Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@amd.com>
Link: https://lore.kernel.org/r/20230626135515.1252063-3-Syed.SabaKareem@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/amd')
| -rw-r--r-- | sound/soc/amd/acp/acp-legacy-common.c | 19 | ||||
| -rw-r--r-- | sound/soc/amd/acp/acp-rembrandt.c | 26 | ||||
| -rw-r--r-- | sound/soc/amd/acp/amd.h | 3 |
3 files changed, 48 insertions, 0 deletions
diff --git a/sound/soc/amd/acp/acp-legacy-common.c b/sound/soc/amd/acp/acp-legacy-common.c index 5b7000eae693..4302d8db88a4 100644 --- a/sound/soc/amd/acp/acp-legacy-common.c +++ b/sound/soc/amd/acp/acp-legacy-common.c @@ -13,6 +13,7 @@ */ #include "amd.h" +#include <linux/pci.h> #include <linux/export.h> static int acp_power_on(struct acp_chip_info *chip) @@ -96,4 +97,22 @@ int acp_deinit(void __iomem *base) } EXPORT_SYMBOL_NS_GPL(acp_deinit, SND_SOC_ACP_COMMON); +int smn_write(struct pci_dev *dev, u32 smn_addr, u32 data) +{ + pci_write_config_dword(dev, 0x60, smn_addr); + pci_write_config_dword(dev, 0x64, data); + return 0; +} +EXPORT_SYMBOL_NS_GPL(smn_write, SND_SOC_ACP_COMMON); + +int smn_read(struct pci_dev *dev, u32 smn_addr) +{ + u32 data; + + pci_write_config_dword(dev, 0x60, smn_addr); + pci_read_config_dword(dev, 0x64, &data); + return data; +} +EXPORT_SYMBOL_NS_GPL(smn_read, SND_SOC_ACP_COMMON); + MODULE_LICENSE("Dual BSD/GPL"); diff --git a/sound/soc/amd/acp/acp-rembrandt.c b/sound/soc/amd/acp/acp-rembrandt.c index 59b1653b8479..82a1bf2ddfc6 100644 --- a/sound/soc/amd/acp/acp-rembrandt.c +++ b/sound/soc/amd/acp/acp-rembrandt.c @@ -19,11 +19,17 @@ #include <sound/soc.h> #include <sound/soc-dai.h> #include <linux/dma-mapping.h> +#include <linux/pci.h> #include "amd.h" #define DRV_NAME "acp_asoc_rembrandt" +#define MP1_C2PMSG_69 0x3B10A14 +#define MP1_C2PMSG_85 0x3B10A54 +#define MP1_C2PMSG_93 0x3B10A74 +#define HOST_BRIDGE_ID 0x14B5 + static struct acp_resource rsrc = { .offset = 0, .no_of_ctrls = 2, @@ -160,6 +166,25 @@ static struct snd_soc_dai_driver acp_rmb_dai[] = { }, }; +static int acp6x_master_clock_generate(struct device *dev) +{ + int data = 0; + struct pci_dev *smn_dev; + + smn_dev = pci_get_device(PCI_VENDOR_ID_AMD, HOST_BRIDGE_ID, NULL); + if (!smn_dev) { + dev_err(dev, "Failed to get host bridge device\n"); + return -ENODEV; + } + + smn_write(smn_dev, MP1_C2PMSG_93, 0); + smn_write(smn_dev, MP1_C2PMSG_85, 0xC4); + smn_write(smn_dev, MP1_C2PMSG_69, 0x4); + read_poll_timeout(smn_read, data, data, DELAY_US, + ACP_TIMEOUT, false, smn_dev, MP1_C2PMSG_93); + return 0; +} + static void acp6x_enable_interrupts(struct acp_dev_data *adata) { struct acp_resource *rsrc = adata->rsrc; @@ -228,6 +253,7 @@ static int rembrandt_audio_probe(struct platform_device *pdev) acp_machine_select(adata); dev_set_drvdata(dev, adata); + acp6x_master_clock_generate(dev); acp6x_enable_interrupts(adata); acp_platform_register(dev); diff --git a/sound/soc/amd/acp/amd.h b/sound/soc/amd/acp/amd.h index 19327c4edcf3..64f70d5a46fa 100644 --- a/sound/soc/amd/acp/amd.h +++ b/sound/soc/amd/acp/amd.h @@ -187,6 +187,9 @@ int acp_platform_unregister(struct device *dev); int acp_machine_select(struct acp_dev_data *adata); +int smn_read(struct pci_dev *dev, u32 smn_addr); +int smn_write(struct pci_dev *dev, u32 smn_addr, u32 data); + int acp_init(struct acp_chip_info *chip); int acp_deinit(void __iomem *base); /* Machine configuration */ |