Re: [PATCH v9 1/4] drm/i2c: tda998x: Add DT support for audio

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On 01/13/2015 09:26 PM, Russell King - ARM Linux wrote:
SCLK: _~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_
   WS: __~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~________________________________~
I2S1: llmm............................llmm............................llm
I2S2: llmm............................llmm............................llm
I2S3: llmm............................llmm............................llm
I2S4: llmm............................llmm............................llm

So, what I'm saying is that it is_impossible_  to drive the TDA998x using
multiple I2S streams which are not produced by the same I2S block.

This is besides the point, but it is possible that one of the multiple I2S blocks is the bit-clock and frame-clock master to the i2s bus and the others are slaves to it (banging their bits according to SCLK and WS of the I2S master). However, in this situation there really is only one i2s bus with multiple data pins.

Just my 0.02€ to this discussion.
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