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- From d40566a2e9aa3c40be313b1fba9d5435c58ffd79 Mon Sep 17 00:00:00 2001
- From: Shengjiu Wang <[email protected]>
- Date: Thu, 23 Nov 2017 13:32:13 +0800
- Subject: [PATCH] MLK-16929-1: ASoC: fsl_sai: add bitclk_freq
- Allow set SAI bit clock frequency trough snd_soc_dai_set_sysclk
- function call on machine sound drivers.
- Signed-off-by: Shengjiu Wang <[email protected]>
- Signed-off-by: Adrian Alonso <[email protected]>
- ---
- sound/soc/fsl/fsl_sai.c | 9 ++++++++-
- sound/soc/fsl/fsl_sai.h | 1 +
- 2 files changed, 9 insertions(+), 1 deletion(-)
- --- a/sound/soc/fsl/fsl_sai.c
- +++ b/sound/soc/fsl/fsl_sai.c
- @@ -233,11 +233,14 @@ static int fsl_sai_set_dai_sysclk_tr(str
- static int fsl_sai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
- int clk_id, unsigned int freq, int dir)
- {
- + struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai);
- int ret;
-
- if (dir == SND_SOC_CLOCK_IN)
- return 0;
-
- + sai->bitclk_freq = freq;
- +
- ret = fsl_sai_set_dai_sysclk_tr(cpu_dai, clk_id, freq,
- FSL_FMT_TRANSMITTER);
- if (ret) {
- @@ -499,7 +502,11 @@ static int fsl_sai_hw_params(struct snd_
- slot_width = sai->slot_width;
-
- if (!sai->slave_mode[tx]) {
- - ret = fsl_sai_set_bclk(cpu_dai, tx,
- + if (sai->bitclk_freq)
- + ret = fsl_sai_set_bclk(cpu_dai, tx,
- + sai->bitclk_freq);
- + else
- + ret = fsl_sai_set_bclk(cpu_dai, tx,
- slots * slot_width * params_rate(params));
- if (ret)
- return ret;
- --- a/sound/soc/fsl/fsl_sai.h
- +++ b/sound/soc/fsl/fsl_sai.h
- @@ -181,6 +181,7 @@ struct fsl_sai {
- unsigned int mclk_streams;
- unsigned int slots;
- unsigned int slot_width;
- + unsigned int bitclk_freq;
-
- struct snd_soc_dai_driver cpu_dai_drv;
- struct snd_dmaengine_dai_dma_data dma_params_rx;
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