If an mclk-fs value was provided in the device tree configuration, the
calculated MCLK was fed into the downstream codec DAI and CPU DAI,
however set_sysclk was not being called on the platform device. Some
platform devices such as the Xilinx Audio Formatter need to know the MCLK
as well.
Call snd_soc_component_set_sysclk on each component in the stream to set
the proper sysclk value in addition to the existing call of
snd_soc_dai_set_sysclk on the codec DAI and CPU DAI. This may end up
resulting in redundant calls if one of the snd_soc_dai_set_sysclk calls
ends up calling snd_soc_component_set_sysclk itself, but that isn't
expected to cause any significant harm.
Fixes: f48dcbb6d47d ("ASoC: simple-card-utils: share asoc_simple_hw_param()")
Signed-off-by: Robert Hancock <robert.hancock@xxxxxxxxxx>
---
sound/soc/generic/simple-card-utils.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
index a81323d1691d..9736102e6808 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -275,6 +275,7 @@ int asoc_simple_hw_params(struct snd_pcm_substream *substream,
mclk_fs = props->mclk_fs;
if (mclk_fs) {
+ struct snd_soc_component *component;
mclk = params_rate(params) * mclk_fs;
for_each_prop_dai_codec(props, i, pdai) {
@@ -282,16 +283,30 @@ int asoc_simple_hw_params(struct snd_pcm_substream *substream,
if (ret < 0)
return ret;
}
+
for_each_prop_dai_cpu(props, i, pdai) {
ret = asoc_simple_set_clk_rate(pdai, mclk);
if (ret < 0)
return ret;
}
+
+ /* Ensure sysclk is set on all components in case any
+ * (such as platform components) are missed by calls to
+ * snd_soc_dai_set_sysclk.
+ */
+ for_each_rtd_components(rtd, i, component) {
+ ret = snd_soc_component_set_sysclk(component, 0, 0,
+ mclk, SND_SOC_CLOCK_IN);
+ if (ret && ret != -ENOTSUPP)
+ return ret;
+ }
+
for_each_rtd_codec_dais(rtd, i, sdai) {
ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_IN);
if (ret && ret != -ENOTSUPP)
return ret;
}
+
for_each_rtd_cpu_dais(rtd, i, sdai) {
ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_OUT);
if (ret && ret != -ENOTSUPP)
--
2.31.1
