| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | From d40566a2e9aa3c40be313b1fba9d5435c58ffd79 Mon Sep 17 00:00:00 2001 |
| 2 | From: Shengjiu Wang <shengjiu.wang@nxp.com> |
| 3 | Date: Thu, 23 Nov 2017 13:32:13 +0800 |
| 4 | Subject: [PATCH] MLK-16929-1: ASoC: fsl_sai: add bitclk_freq |
| 5 | |
| 6 | Allow set SAI bit clock frequency trough snd_soc_dai_set_sysclk |
| 7 | function call on machine sound drivers. |
| 8 | |
| 9 | Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> |
| 10 | Signed-off-by: Adrian Alonso <adrian.alonso@nxp.com> |
| 11 | --- |
| 12 | sound/soc/fsl/fsl_sai.c | 9 ++++++++- |
| 13 | sound/soc/fsl/fsl_sai.h | 1 + |
| 14 | 2 files changed, 9 insertions(+), 1 deletion(-) |
| 15 | |
| 16 | --- a/sound/soc/fsl/fsl_sai.c |
| 17 | +++ b/sound/soc/fsl/fsl_sai.c |
| 18 | @@ -233,11 +233,14 @@ static int fsl_sai_set_dai_sysclk_tr(str |
| 19 | static int fsl_sai_set_dai_sysclk(struct snd_soc_dai *cpu_dai, |
| 20 | int clk_id, unsigned int freq, int dir) |
| 21 | { |
| 22 | + struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai); |
| 23 | int ret; |
| 24 | |
| 25 | if (dir == SND_SOC_CLOCK_IN) |
| 26 | return 0; |
| 27 | |
| 28 | + sai->bitclk_freq = freq; |
| 29 | + |
| 30 | ret = fsl_sai_set_dai_sysclk_tr(cpu_dai, clk_id, freq, |
| 31 | FSL_FMT_TRANSMITTER); |
| 32 | if (ret) { |
| 33 | @@ -500,7 +503,11 @@ static int fsl_sai_hw_params(struct snd_ |
| 34 | slot_width = sai->slot_width; |
| 35 | |
| 36 | if (!sai->slave_mode[tx]) { |
| 37 | - ret = fsl_sai_set_bclk(cpu_dai, tx, |
| 38 | + if (sai->bitclk_freq) |
| 39 | + ret = fsl_sai_set_bclk(cpu_dai, tx, |
| 40 | + sai->bitclk_freq); |
| 41 | + else |
| 42 | + ret = fsl_sai_set_bclk(cpu_dai, tx, |
| 43 | slots * slot_width * params_rate(params)); |
| 44 | if (ret) |
| 45 | return ret; |
| 46 | --- a/sound/soc/fsl/fsl_sai.h |
| 47 | +++ b/sound/soc/fsl/fsl_sai.h |
| 48 | @@ -181,6 +181,7 @@ struct fsl_sai { |
| 49 | unsigned int mclk_streams; |
| 50 | unsigned int slots; |
| 51 | unsigned int slot_width; |
| 52 | + unsigned int bitclk_freq; |
| 53 | |
| 54 | struct snd_soc_dai_driver cpu_dai_drv; |
| 55 | struct snd_dmaengine_dai_dma_data dma_params_rx; |