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50 lines
1.4 KiB
Diff
50 lines
1.4 KiB
Diff
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From a115bf34468398647e7a8f380058bd597e44e1b3 Mon Sep 17 00:00:00 2001
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From: Viorel Suman <viorel.suman@nxp.com>
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Date: Mon, 29 Jan 2018 16:04:44 +0200
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Subject: [PATCH] MLK-16224-6: ASoC: fsl_sai: fix DSD suspend/resume
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With the existing implementation the SAI pinctrl state is restored to
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default after resume - this breaks DSD playback after resume.
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Restore DSD pinctrl state in snd_soc_dai_driver resume callback.
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Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
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Reviewed-by: Shengjiu Wang <shengjiu.wang@nxp.com>
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---
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sound/soc/fsl/fsl_sai.c | 18 ++++++++++++++++++
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1 file changed, 18 insertions(+)
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--- a/sound/soc/fsl/fsl_sai.c
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+++ b/sound/soc/fsl/fsl_sai.c
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@@ -893,6 +893,23 @@ static int fsl_sai_dai_probe(struct snd_
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return 0;
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}
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+static int fsl_sai_dai_resume(struct snd_soc_dai *cpu_dai)
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+{
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+ struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai);
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+ int ret;
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+
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+ if (sai->is_dsd && !IS_ERR_OR_NULL(sai->pins_dsd)) {
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+ ret = pinctrl_select_state(sai->pinctrl, sai->pins_dsd);
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+ if (ret) {
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+ dev_err(cpu_dai->dev,
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+ "failed to set proper pins state: %d\n", ret);
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+ return ret;
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+ }
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+ }
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+
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+ return 0;
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+}
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+
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static struct snd_soc_dai_driver fsl_sai_dai = {
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.probe = fsl_sai_dai_probe,
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.playback = {
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@@ -913,6 +930,7 @@ static struct snd_soc_dai_driver fsl_sai
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.rates = SNDRV_PCM_RATE_KNOT,
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.formats = FSL_SAI_FORMATS,
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},
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+ .resume = fsl_sai_dai_resume,
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.ops = &fsl_sai_pcm_dai_ops,
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};
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