5 Aug
2016
5 Aug
'16
12:30 p.m.
On Fri, Aug 05, 2016 at 11:04:51AM +0200, Peter Meerwald-Stadler wrote:
these registers cannot not found in the datasheet; maybe add descriptive #defines in da7213.h
snd_soc_write(codec, 0xF0, 0x8B);snd_soc_write(codec, 0xF2, 0x03);snd_soc_write(codec, 0xF0, 0x00);
It is very common for chips to have undocumented write sequences that make tweaks based on test registers that are deliberately not documented. This looks like such a case, I'd imagine that register 0xf0 is a test key and 0xf2 contains a value being tweaked.