diff options
Diffstat (limited to 'sound/soc/amd')
| -rw-r--r-- | sound/soc/amd/ps/acp63.h | 2 | ||||
| -rw-r--r-- | sound/soc/amd/ps/ps-pdm-dma.c | 8 |
2 files changed, 8 insertions, 2 deletions
diff --git a/sound/soc/amd/ps/acp63.h b/sound/soc/amd/ps/acp63.h index 893a0455cf24..6bf29b520511 100644 --- a/sound/soc/amd/ps/acp63.h +++ b/sound/soc/amd/ps/acp63.h @@ -29,7 +29,7 @@ #define ACP_ERROR_STAT 29 #define PDM_DECIMATION_FACTOR 2 #define ACP_PDM_CLK_FREQ_MASK 7 -#define ACP_WOV_MISC_CTRL_MASK 0x18 +#define ACP_WOV_GAIN_CONTROL GENMASK(4, 3) #define ACP_PDM_ENABLE 1 #define ACP_PDM_DISABLE 0 #define ACP_PDM_DMA_EN_STATUS 2 diff --git a/sound/soc/amd/ps/ps-pdm-dma.c b/sound/soc/amd/ps/ps-pdm-dma.c index 8957d8f8d3c6..454dab062e4f 100644 --- a/sound/soc/amd/ps/ps-pdm-dma.c +++ b/sound/soc/amd/ps/ps-pdm-dma.c @@ -7,6 +7,7 @@ #include <linux/platform_device.h> #include <linux/module.h> +#include <linux/bitfield.h> #include <linux/err.h> #include <linux/io.h> #include <sound/pcm_params.h> @@ -18,6 +19,10 @@ #define DRV_NAME "acp_ps_pdm_dma" +static int pdm_gain = 3; +module_param(pdm_gain, int, 0644); +MODULE_PARM_DESC(pdm_gain, "Gain control (0-3)"); + static const struct snd_pcm_hardware acp63_pdm_hardware_capture = { .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | @@ -55,7 +60,8 @@ static void acp63_enable_pdm_clock(void __iomem *acp_base) acp63_writel(pdm_clk_enable, acp_base + ACP_WOV_CLK_CTRL); pdm_ctrl = acp63_readl(acp_base + ACP_WOV_MISC_CTRL); - pdm_ctrl |= ACP_WOV_MISC_CTRL_MASK; + pdm_ctrl &= ~ACP_WOV_GAIN_CONTROL; + pdm_ctrl |= FIELD_PREP(ACP_WOV_GAIN_CONTROL, clamp(pdm_gain, 0, 3)); acp63_writel(pdm_ctrl, acp_base + ACP_WOV_MISC_CTRL); } |