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From d40566a2e9aa3c40be313b1fba9d5435c58ffd79 Mon Sep 17 00:00:00 2001
From: Shengjiu Wang <shengjiu.wang@nxp.com>
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 <shengjiu.wang@nxp.com>
Signed-off-by: Adrian Alonso <adrian.alonso@nxp.com>
---
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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