linux-kernel - Re: [PATCH v6 4/4] backlight: rt4831: Adds support for Richtek RT4831 backlight

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Date:   Mon, 29 Mar 2021 21:46:48 +0800
From:   ChiYuan Huang <u0084500@...il.com>
To:     Daniel Thompson <daniel.thompson@...aro.org>
Cc:     Lee Jones <lee.jones@...aro.org>, lgirdwood@...il.com,
        Mark Brown <broonie@...nel.org>, jingoohan1@...il.com,
        b.zolnierkie@...sung.com, dri-devel@...ts.freedesktop.org,
        linux-fbdev@...r.kernel.org, lkml <linux-kernel@...r.kernel.org>,
        ChiYuan Huang <cy_huang@...htek.com>
Subject: Re: [PATCH v6 4/4] backlight: rt4831: Adds support for Richtek RT4831 backlight

Hi, Daniel:

Daniel Thompson <daniel.thompson@...aro.org> 於 2021年3月29日 週一 下午6:26寫道：
>
> On Sun, Mar 28, 2021 at 11:24:19PM +0800, cy_huang wrote:
> > From: ChiYuan Huang <cy_huang@...htek.com>
> >
> > Adds support for Richtek RT4831 backlight.
> >
> > Signed-off-by: ChiYuan Huang <cy_huang@...htek.com>
> > ---
> > since v6
> > - Fix Kconfig typo.
> > - Remove internal mutex lock.
> > - Add the prefix for max brightness.
> > - rename init_device_properties to parse_backlight_properties.
> > - Remove some warning message if default value is adopted.
> > - Add backlight property scale to LINEAR mapping.
> > - Fix regmap get to check NULL not IS_ERR.
> > ---
> >  drivers/video/backlight/Kconfig            |   8 ++
> >  drivers/video/backlight/Makefile           |   1 +
> >  drivers/video/backlight/rt4831-backlight.c | 203 +++++++++++++++++++++++++++++
> >  3 files changed, 212 insertions(+)
> >  create mode 100644 drivers/video/backlight/rt4831-backlight.c
> >
> > diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
> > index d83c87b..de96441 100644
> > --- a/drivers/video/backlight/Kconfig
> > +++ b/drivers/video/backlight/Kconfig
> > @@ -289,6 +289,14 @@ config BACKLIGHT_QCOM_WLED
> >         If you have the Qualcomm PMIC, say Y to enable a driver for the
> >         WLED block. Currently it supports PM8941 and PMI8998.
> >
> > +config BACKLIGHT_RT4831
> > +     tristate "Richtek RT4831 Backlight Driver"
> > +     depends on MFD_RT4831
> > +     help
> > +       This enables support for Richtek RT4831 Backlight driver.
> > +       It's common used to drive the display WLED. There're four channels
>
> Nitpicking but I was expecting the original typo be converted to
> "commonly".
>
OK, I'll correct this typo in v7 next.
And will merge the reviewed-by line.
Thx.
>
> With that addressed:
> Reviewed-by: Daniel Thompson <daniel.thompson@...aro.org>
>
>
> Daniel.