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MLK-18979-2: ASoC: fsl_asrc: add initial check in resume

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If the initialization is not finished, then we input data to
the FIFO will fail, which still cause the error

"output dma task timeout"

So we need to ad initial check in the resume.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
This commit is contained in:
Shengjiu Wang
2018-09-05 16:48:33 +08:00
committed by Dong Aisheng
parent e620dc8f1b
commit 2b242b487e
1 changed files with 9 additions and 0 deletions
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9
sound/soc/fsl/fsl_asrc.c
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@ -1214,6 +1214,8 @@ static int fsl_asrc_runtime_resume(struct device *dev)
struct fsl_asrc_priv *asrc_priv = asrc->private;
int i, ret;
u32 asrctr;
u32 reg;
int retry = 10;
ret = clk_prepare_enable(asrc->mem_clk);
if (ret)
@ -1250,6 +1252,13 @@ static int fsl_asrc_runtime_resume(struct device *dev)
regmap_update_bits(asrc->regmap, REG_ASRCTR,
ASRCTR_ASRCEi_ALL_MASK, asrctr);
/* Wait for status of initialization */
do {
udelay(5);
regmap_read(asrc->regmap, REG_ASRCFG, &reg);
reg = (reg >> ASRCFG_INIRQi_SHIFT(0)) & 0x7;
} while (!(reg == ((asrctr & 0xE) >> 1)) && --retry);
return 0;
disable_asrck_clk: