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From:   Andy Shevchenko <andy.shevchenko@gmail.com>
Date:   Wed, 1 Jun 2022 11:51:30 +0200
Message-ID: <CAHp75Vf245Oo3wmx5rh_EkXZ4FL_nnehpfuaDAiEdG6BenXxhw@mail.gmail.com>
Subject: Re: [PATCH 06/14] leds: mt6370: Add Mediatek MT6370 Indicator support
To:     ChiaEn Wu <peterwu.pub@gmail.com>
Cc:     Lee Jones <lee.jones@linaro.org>,
        Daniel Thompson <daniel.thompson@linaro.org>,
        Jingoo Han <jingoohan1@gmail.com>, Pavel Machek <pavel@ucw.cz>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Sebastian Reichel <sre@kernel.org>,
        Chunfeng Yun <chunfeng.yun@mediatek.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Jonathan Cameron <jic23@kernel.org>,
        Lars-Peter Clausen <lars@metafoo.de>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Guenter Roeck <linux@roeck-us.net>,
        "Krogerus, Heikki" <heikki.krogerus@linux.intel.com>,
        Helge Deller <deller@gmx.de>, cy_huang@richtek.com,
        alice_chen@richtek.com, chiaen_wu@richtek.com,
        dri-devel <dri-devel@lists.freedesktop.org>,
        Linux LED Subsystem <linux-leds@vger.kernel.org>,
        devicetree <devicetree@vger.kernel.org>,
        linux-arm Mailing List <linux-arm-kernel@lists.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@lists.infradead.org>,
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On Wed, Jun 1, 2022 at 11:48 AM Andy Shevchenko
<andy.shevchenko@gmail.com> wrote:
> On Tue, May 31, 2022 at 1:16 PM ChiaEn Wu <peterwu.pub@gmail.com> wrote:
> >
> > From: Alice Chen <alice_chen@richtek.com>
>
> All below comments are applicable to the rest of the series as well
> (one way or another), so please fix all your patches where it's
> appropriate.

Forgot to mention, please consider using

  return dev_err_probe();

pattern in the ->probe() and related funcitons. It will save a lot of LOCs.

> > Add Mediatek MT6370 Indicator support
>
> What indicator?
> Please also keep attention on English punctuation (missed period).
>
> ...
>
> > +       help
> > +         Support 4 channels and reg/pwm/breath mode.
> > +         Isink4 can also use as a CHG_VIN power good Indicator.
>
> be used
>
> > +         Say Y here to enable support for
> > +         MT6370_RGB_LED device.
>
> ...
>
> > +#include <linux/module.h>
> > +#include <linux/mutex.h>
> > +#include <linux/platform_device.h>
>
> > +#include <linux/of.h>
>
> Are you sure this is the correct header? Seems you need
> mod_devicetable.h instead.
>
> > +#include <linux/property.h>
> > +#include <linux/regmap.h>
>
> ...
>
> > +struct mt6370_priv {
> > +       struct mutex lock;
>
> Do you use regmap locking?
>
> > +       struct device *dev;
>
> > +       struct regmap *regmap;
>
> > +       struct regmap_field *fields[F_MAX_FIELDS];
> > +       const struct reg_field *reg_fields;
> > +       const struct linear_range *ranges;
> > +       struct reg_cfg *reg_cfgs;
> > +       unsigned int leds_count;
> > +       unsigned int leds_active;
> > +       bool is_mt6372;
> > +       struct mt6370_led leds[];
> > +};
>
> ...
>
> > +static const unsigned int common_tfreqs[] = {
> > +       10000, 5000, 2000, 1000, 500, 200, 5, 1
>
> Leave a comma at the end.
>
> > +};
> > +
> > +static const unsigned int mt6372_tfreqs[] = {
> > +       8000, 4000, 2000, 1000, 500, 250, 8, 4
>
> Ditto.
>
> > +};
>
>
> --
> With Best Regards,
> Andy Shevchenko


-- 
With Best Regards,
Andy Shevchenko