On 2019/09/05 0:30, Mark Brown wrote:
On Thu, Sep 05, 2019 at 12:06:23AM +0900, Katsuhiro Suzuki wrote:
Would you tell me one more thing. I don't understand who sets MCLK to 0.
Is it needed original machine driver instead of audio-graph-card?
On my test environment (audio-graph-card + Rockchip I2S + ES8316), it
seems audio-graph-card has never called set_sysclk() with freq = 0 after
stop play/capture sound. So my env will go to bad scenario as I described in
this patch.
You shouldn't need a custom machine driver - you'll just be the first
person who ran into this with audio-graph-card. I'd just add this
support to the audio-graph-card, either with custom startup and shutdown
callbacks or using a set_bias_level() callback (both get used, I'd guess
the set_bias_level() is easier since you don't need to reference count
anything).
Oh, I understand current situation. I'll try it.
Thanks for your support!
Best Regards,
Katsuhiro Suzuki
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