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drivers: amd: renoir: Fix 16K sample rate for dmic 

Fix dmic sample rate to 16000 as default sample rate.

Signed-off-by: balapati <balakishore.pati@amd.com>
This commit is contained in:
balapati 2021-09-28 15:26:12 +05:30 committed by Liam Girdwood
parent 5e17731290
commit 82886c6b41
3 changed files with 5 additions and 3 deletions
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2
src/drivers/amd/renoir/acp_dmic_dai.c
View File

@ -73,7 +73,7 @@ static int acp_dmic_dai_get_hw_params(struct dai *dai,
int dir)
{
/* ACP only currently supports these parameters */
params->rate = ACP_DEFAULT_SAMPLE_RATE;
params->rate = ACP_SAMPLE_RATE_16K;/* 16000 sample rate only for dmic */
params->channels = ACP_DEFAULT_NUM_CHANNELS;
params->buffer_fmt = SOF_IPC_BUFFER_INTERLEAVED;
params->frame_fmt = SOF_IPC_FRAME_S32_LE;

4
src/drivers/amd/renoir/acp_dmic_dma.c
View File

@ -96,8 +96,8 @@ static int acp_dmic_dma_start(struct dma_chan_data *channel)
deci_fctr.u32all = 2;
io_reg_write(PU_REGISTER_BASE + ACP_WOV_PDM_DECIMATION_FACTOR,
deci_fctr.u32all);
/* DMIC Clock */
clk_ctrl.bits.brm_clk_ctrl = 7;
/* DMIC Clock for 16K sample rate */
clk_ctrl.bits.brm_clk_ctrl = 1;
io_reg_write(PU_REGISTER_BASE + ACP_WOV_CLK_CTRL,
clk_ctrl.u32all);
/* PDM Control */

2
src/include/sof/drivers/acp_dai_dma.h
View File

@ -27,6 +27,8 @@ int acp_dma_init(struct sof *sof);
/* default sample rate */
#define ACP_DEFAULT_SAMPLE_RATE 48000
#define ACP_SAMPLE_RATE_16K 16000
#define ACP_DMA_BUFFER_ALIGN 64
#define ACP_DMA_TRANS_SIZE 64
#define ACP_DAI_DMA_BUFFER_PERIOD_COUNT 2