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authorMarkus Pargmann <mpa@pengutronix.de>2013-10-11 12:11:04 +0200
committerMark Brown <broonie@linaro.org>2013-10-14 18:01:50 +0100
commit863ebddec85c5ce2fb2e7742e8834a3bd69a2512 (patch)
tree0dcf1d412a080712fa092d3283e6de64c7e2f4ff /sound/soc/mxs
parent88cf632a135188db35b4db412a06b155fa444eb1 (diff)
downloadlinux-863ebddec85c5ce2fb2e7742e8834a3bd69a2512.tar.bz2
ASoC: mxs-saif: Handle errors in trigger function
Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/mxs')
-rw-r--r--sound/soc/mxs/mxs-saif.c22
1 files changed, 17 insertions, 5 deletions
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index c8ead011c95b..fc3d89b75d48 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -494,6 +494,7 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);
struct mxs_saif *master_saif;
u32 delay;
+ int ret;
master_saif = mxs_saif_get_master(saif);
if (!master_saif)
@@ -508,21 +509,32 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
dev_dbg(cpu_dai->dev, "start\n");
- clk_enable(master_saif->clk);
- if (!master_saif->mclk_in_use)
- __raw_writel(BM_SAIF_CTRL_RUN,
- master_saif->base + SAIF_CTRL + MXS_SET_ADDR);
+ ret = clk_enable(master_saif->clk);
+ if (ret) {
+ dev_err(saif->dev, "Failed to enable master clock\n");
+ return ret;
+ }
/*
* If the saif's master is not himself, we also need to enable
* itself clk for its internal basic logic to work.
*/
if (saif != master_saif) {
- clk_enable(saif->clk);
+ ret = clk_enable(saif->clk);
+ if (ret) {
+ dev_err(saif->dev, "Failed to enable master clock\n");
+ clk_disable(master_saif->clk);
+ return ret;
+ }
+
__raw_writel(BM_SAIF_CTRL_RUN,
saif->base + SAIF_CTRL + MXS_SET_ADDR);
}
+ if (!master_saif->mclk_in_use)
+ __raw_writel(BM_SAIF_CTRL_RUN,
+ master_saif->base + SAIF_CTRL + MXS_SET_ADDR);
+
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
/*
* write data to saif data register to trigger