AHCLKX output nothing when davinci-mcasp in capture only mode

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AHCLKX output nothing when davinci-mcasp in capture only mode #210

Closed turmary closed 4 years ago

turmary commented 5 years ago

In some situation, the sound card connected to davinci-mcasp need AHCLKX as the master clock (lack of Crystal oscillator）.

After applying the proper config of DTS, we got below results for kernel v4.19 : When davinci-mcasp in playback mode, AHCLKX could output a 24MHz clock. But if davinci-mcasp in capture mode only, AHCLKX output nothing.

pdp7 commented 4 years ago

It appears that this was fixed in mainline: https://github.com/torvalds/linux/commit/34a2a80ff30b5d2330abfa8980c7f0cc15a8158a

@RobertCNelson @turmary ok to close?

pdp7 commented 4 years ago

Please reopen if still an issue