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ASoC: amd: acp: Add I2S master clock generation support for acp7.0 platform

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Add I2S master clock generation support for acp7.0 platforms.

Signed-off-by: Venkata Prasad Potturu <venkataprasad.potturu@amd.com>
Link: https://patch.msgid.link/20240903113427.182997-7-venkataprasad.potturu@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Venkata Prasad Potturu 2024-09-03 17:04:21 +05:30 committed by Mark Brown
parent 7a040cc557
commit fb2eaec6a3
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GPG Key ID: 24D68B725D5487D0
1 changed files with 24 additions and 0 deletions
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24
sound/soc/amd/acp/acp70.c
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@ -25,6 +25,9 @@
#define DRV_NAME "acp_asoc_acp70"
#define CLK7_CLK0_DFS_CNTL_N1 0X0006C1A4
#define CLK0_DIVIDER 0X19
static struct acp_resource rsrc = {
.offset = 0,
.no_of_ctrls = 2,
@ -134,12 +137,27 @@ static struct snd_soc_dai_driver acp70_dai[] = {
},
};
static int acp70_i2s_master_clock_generate(struct acp_dev_data *adata)
{
struct pci_dev *smn_dev;
smn_dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x1507, NULL);
if (!smn_dev)
return -ENODEV;
/* Set clk7 DFS clock divider register value to get mclk as 196.608MHz*/
smn_write(smn_dev, CLK7_CLK0_DFS_CNTL_N1, CLK0_DIVIDER);
return 0;
}
static int acp_acp70_audio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct acp_chip_info *chip;
struct acp_dev_data *adata;
struct resource *res;
int ret;
chip = dev_get_platdata(&pdev->dev);
if (!chip || !chip->base) {
@ -191,6 +209,12 @@ static int acp_acp70_audio_probe(struct platform_device *pdev)
acp_machine_select(adata);
dev_set_drvdata(dev, adata);
ret = acp70_i2s_master_clock_generate(adata);
if (ret) {
dev_err(&pdev->dev, "Failed to set I2S master clock as 196.608MHz\n");
return ret;
}
acp_enable_interrupts(adata);
acp_platform_register(dev);
pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);