Thread (21 messages) 21 messages, 5 authors, 2026-03-05

Re: [PATCH v4 5/6] ASoC: sophgo: add CV1800B internal DAC codec driver

From: Mark Brown <broonie@kernel.org>
Date: 2026-01-27 15:14:05
Also in: linux-riscv, linux-sound, lkml

On Tue, Jan 27, 2026 at 07:11:24PM +0400, Anton D. Stavinskii wrote:
On Tue, Jan 27, 2026 at 12:49:52PM +0400, Mark Brown wrote:
quoted
Nothing ever mutes the DAC so this is a bit redundant.  The mute should
probably be a mute_stream() operation.
I'm not sure here. DAC mute feature was not implemented because I don't know how
exactly do that. The public documentation is very weak for my taste. 
This call added here to be sure that override flag is
not set (override feature replaces the output by setting it to constant 
value and ignoring the input, so it is some kind of mute from my understanding. 
So ensuring this off is needed be sure that DAC will output our I2S data). 
What do you think will be better to do here? 
I'm sure that is needed, but may be better to move 
it to some early stages, like probe function. 
It's probably fine to leave the functional code as is but you should add
some comments to the mute function explaining waht's going on here.

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