diff options
| author | Markus Pargmann <mpa@pengutronix.de> | 2013-10-11 12:11:04 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-10-14 18:01:50 +0100 |
| commit | 863ebddec85c5ce2fb2e7742e8834a3bd69a2512 (patch) | |
| tree | 0dcf1d412a080712fa092d3283e6de64c7e2f4ff /sound/soc/mxs/mxs-saif.c | |
| parent | 88cf632a135188db35b4db412a06b155fa444eb1 (diff) | |
| download | op-kernel-dev-863ebddec85c5ce2fb2e7742e8834a3bd69a2512.zip op-kernel-dev-863ebddec85c5ce2fb2e7742e8834a3bd69a2512.tar.gz | |
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/mxs-saif.c')
| -rw-r--r-- | sound/soc/mxs/mxs-saif.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index c8ead01..fc3d89b 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 |
