>-----Original Message----- >From: Mark Brown [mailto:broo...@kernel.org] >Sent: Thursday, August 31, 2017 4:44 AM >To: Ryan Lee <ryans....@maximintegrated.com> >Cc: lgirdw...@gmail.com; pe...@perex.cz; ti...@suse.com; >kuninori.morimoto...@renesas.com; alsa-de...@alsa-project.org; linux- >ker...@vger.kernel.org; ryan.lee.ma...@gmail.com >Subject: Re: [PATCH 2/9] ASoC: max98927: Added controls for Envelope tracking > >On Mon, Aug 28, 2017 at 04:30:54PM -0700, Ryan Lee wrote: > >> /* Envelope Tracking configuration */ >> regmap_write(max98927->regmap, >> MAX98927_R0082_ENV_TRACK_VOUT_HEADROOM, >> - 0x08); >> + 0x0A); >> regmap_write(max98927->regmap, >> MAX98927_R0086_ENV_TRACK_CTRL, >> 0x01); >> - regmap_write(max98927->regmap, >> - MAX98927_R0087_ENV_TRACK_BOOST_VOUT_READ, >> - 0x10); > >Why are we changing the defaults here? It was understandable to have a fixed >default that differed from the chip value when there was no control but now >there is a control and we're changing the default again for some undocumented >reason. It'd be better to leave the values here to avoid breaking >compatibility >with existing users and let users who need different values change things using >the newly added controls.
Thank you for feedback. Let me keep existing value. I still need to remove regmap_write for R:0x87 because it is read-only register.
