Re: Re: [PATCH v4 11/23] ASoC: simple-card: Loop over all children for 'mclk-fs'

From: Sameer Pujar
Date: Tue Jun 30 2020 - 07:56:47 EST




On 6/30/2020 4:25 PM, Mark Brown wrote:
On Tue, Jun 30, 2020 at 09:53:13AM +0530, Sameer Pujar wrote:
On 6/30/2020 7:38 AM, Kuninori Morimoto wrote:
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+ if (cpu != codec)
+ of_property_read_u32(codec, prop, &props->mclk_fs);
Sorry if I was not clear before.
I agree with Moromito-san that the new code (especially the above bit)
is very confusing, I'm not sure how the reader is supposed to figure out
what the purpose of the check is or how the CPU could ever be the CODEC.

simple_parse_mclk_fs() is used by both simple_dai_link_of_dpcm() and
simple_dai_link_of(). To make the same API work for both the cases, I had to
use (A) in DPCM function. Now (B) does not get used for
simple_dai_link_of_dpcm(), but will get used by simple_dai_link_of().
If it is simpler I will just avoid 'cpu != codec' check and keep the
function simple_parse_mclk_fs() as it is.
That'd definitely be simpler, or supporting this with a CPU node as
well.

OK. I will keep it simple.