[alsa-devel] [PATCH] ASoC: atmel_ssc_dai: note buggy I2S support when the codec masters LRCLK

[Mark Brown]

On Wed, Apr 27, 2016 at 11:06:33AM +0200, Peter Rosin wrote:

> While the start condition is correct for the left channel word in the I2S
> case, it is not correct that the right channel word follows immediately
> after the left channel word. The start of the right channel word should
> be triggered by a rising edge on LRCLK in the I2S case, something which
> simply does not happen.

Almost every programmable serial port does this, it's a very common
issue which is why we always try to go for exact clocking where we can -
it greatly improves the interoperability for I2S if there are no dead
clocks.
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