14.01.2020 10:24, Sowjanya Komatineni пишет:

mclk is from clk_out_1 which is part of Tegra PMC block and pmc clocks
are moved to Tegra PMC driver with pmc as clock provider and using pmc
clock ids.

New device tree uses clk_out_1 from pmc clock provider as audio mclk.

So, this patch adds implementation for mclk fallback to extern1 when
retrieving mclk returns -ENOENT to be backward compatible of new device
tree with older kernels.

Fixes: 110147c8c513 ("ASoC: tegra: always use clk_get() in utility code")

I don't think that it is correct to use the Fixes tag here because this
patch doesn't fix any real problem of the referenced commit, instead the
Stable CC tag should be used.

Tested-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
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