Messages in this thread | | | Date | Fri, 16 Mar 2012 18:55:09 +0900 | Subject | Re: [alsa-devel] [PATCH v6] sound/soc/codecs: add LAPIS Semiconductor ML26124 | From | Tomoya MORINAGA <> |
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On Thu, Mar 15, 2012 at 3:29 PM, Tomoya MORINAGA <tomoya.rohm@gmail.com> wrote: >> If this is for all registers, how does stuff like DAPM work, which uses the >> framework internal update_bits function? >> >> If it's the case that the write address is always read address + 1 you can >> still use the framework if you set write_flag_mask to 0x01 in your regmap >> config. In my opinion it even makes sense to shift all the register numbers >> to the left by one and use a 7/9 instead of a 8/8 addr/reg layout. This will >> reduce the amount of memory wasted due to holes in the register cache. > > Thank you for your information. > I've just been investigating these. > I also found ASoC core access i2c driver via snd_soc_update_bits or others. > As a result, write register address is the same as read's. > > I'll try to implement these. > > BTW, currently, by settting ML26124 codec with fixed value, > I've confirmed both playback and capture work well.
Thank you for your help, almost of ML26124 registers can be set correctly except SUPPLY. So, I have a question.
When SND_SOC_DAPM_SUPPLY is executed ? or Do I need to execute from application (like amixer) ?
thanks in advance.
-- ROHM Co., Ltd. tomoya
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