Re: [PATCH 3/4] ASoC: wm8904: extend device tree support
Hi All,
+ - num-drc-cfgs: Number of available DRC modes from drc-cfg-regs property
+ - drc-cfg-regs: Default registers value for R40/41/42/43 (DRC) + The list must be (4 x num-drc-cfgs) entries long. + If absent or incomplete, DRC is disabled.
What is the purpose of having num-drc-cfgs? We can tell how large drc-cfg-regs is so it just seems redundant.
Can you please point me to any reference implementation doing this ?
+ - num-retune-mobile-cfgs: Number of retune modes available from + retune-mobile-cfg-regs property
Same here.
Thanks Best Regards Pier
On Mon, Jun 20, 2022 at 02:32:17PM +0000, Pierluigi Passaro wrote:
+ - drc-cfg-regs: Default registers value for R40/41/42/43 (DRC) + The list must be (4 x num-drc-cfgs) entries long. + If absent or incomplete, DRC is disabled.
What is the purpose of having num-drc-cfgs? We can tell how large drc-cfg-regs is so it just seems redundant.
Can you please point me to any reference implementation doing this ?
of_property_read_variable_uX_array() should do what you want, you can also use of_property_count_elems_of_size(). The main DT API header is linux/of.h.
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Mark Brown -
Pierluigi Passaro