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authorRohit kumar <rohitkr@codeaurora.org>2020-08-14 16:23:02 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-10-29 09:57:36 +0100
commiteb4bb7e520a72df9568223f45a4fc8fd44240ca0 (patch)
treecaa3bdd83fb968f216e19d0a841946e76908f8e7 /sound
parentcab19b7f827b70e5dc57ee3e6088bf0e11dc2741 (diff)
ASoC: qcom: lpass-cpu: fix concurrency issue
[ Upstream commit 753a6e17942f6f425ca622e1610625998312ad89 ] i2sctl register value is set to 0 during hw_free(). This impacts any ongoing concurrent session on the same i2s port. As trigger() stop already resets enable bit to 0, there is no need of explicit hw_free. Removing it to fix the issue. Fixes: 80beab8e1d86 ("ASoC: qcom: Add LPASS CPU DAI driver") Signed-off-by: Rohit kumar <rohitkr@codeaurora.org> Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/1597402388-14112-7-git-send-email-rohitkr@codeaurora.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/qcom/lpass-cpu.c16
1 files changed, 0 insertions, 16 deletions
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index dbce7e92baf3..c5d6952a4a33 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -174,21 +174,6 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
return 0;
}
-static int lpass_cpu_daiops_hw_free(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
- int ret;
-
- ret = regmap_write(drvdata->lpaif_map,
- LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id),
- 0);
- if (ret)
- dev_err(dai->dev, "error writing to i2sctl reg: %d\n", ret);
-
- return ret;
-}
-
static int lpass_cpu_daiops_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
@@ -269,7 +254,6 @@ const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops = {
.startup = lpass_cpu_daiops_startup,
.shutdown = lpass_cpu_daiops_shutdown,
.hw_params = lpass_cpu_daiops_hw_params,
- .hw_free = lpass_cpu_daiops_hw_free,
.prepare = lpass_cpu_daiops_prepare,
.trigger = lpass_cpu_daiops_trigger,
};