linux-kernel - Re: [PATCH v3 10/16] iio: adc: axp20x

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Date:   Sun, 19 Jun 2022 12:01:26 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Aidan MacDonald <aidanmacdonald.0x0@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Rob Herring <robh+dt@...nel.org>,
        krzysztof.kozlowski+dt@...aro.org,
        Lee Jones <lee.jones@...aro.org>,
        Sebastian Reichel <sre@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        "Rafael J . Wysocki" <rafael@...nel.org>, quic_gurus@...cinc.com,
        sebastian.reichel@...labora.com,
        Andy Shevchenko <andy.shevchenko@...il.com>, michael@...le.cc,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-iio@...r.kernel.org,
        "open list:THERMAL" <linux-pm@...r.kernel.org>
Subject: Re: [PATCH v3 10/16] iio: adc: axp20x_adc: Minor code cleanups

On Sun, 19 Jun 2022 11:56:56 +0800
Chen-Yu Tsai <wens@...e.org> wrote:

> On Sun, Jun 19, 2022 at 5:40 AM Aidan MacDonald
> <aidanmacdonald.0x0@...il.com> wrote:
> >
> > The code may be clearer if parameters are not re-purposed to hold
> > temporary results like register values, so introduce local variables
> > as necessary to avoid that. Also, use the common FIELD_PREP macro
> > instead of a hand-rolled version.
> >
> > Suggested-by: Jonathan Cameron <jic23@...nel.org>
> > Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@...il.com>
> > ---
> >  drivers/iio/adc/axp20x_adc.c | 61 +++++++++++++++++++-----------------
> >  1 file changed, 33 insertions(+), 28 deletions(-)
> >
> > diff --git a/drivers/iio/adc/axp20x_adc.c b/drivers/iio/adc/axp20x_adc.c
> > index 53bf7d4899d2..041511280e1e 100644
> > --- a/drivers/iio/adc/axp20x_adc.c
> > +++ b/drivers/iio/adc/axp20x_adc.c
> > @@ -15,6 +15,7 @@
> >  #include <linux/property.h>
> >  #include <linux/regmap.h>
> >  #include <linux/thermal.h>
> > +#include <linux/bitfield.h>  
> 
> Sort this group of headers alphabetically please.
> 
> >
> >  #include <linux/iio/iio.h>
> >  #include <linux/iio/driver.h>
> > @@ -22,20 +23,20 @@
> >  #include <linux/mfd/axp20x.h>
> >
> >  #define AXP20X_ADC_EN1_MASK                    GENMASK(7, 0)
> > -
> >  #define AXP20X_ADC_EN2_MASK                    (GENMASK(3, 2) | BIT(7))
> > +
> >  #define AXP22X_ADC_EN1_MASK                    (GENMASK(7, 5) | BIT(0))
> >
> >  #define AXP20X_GPIO10_IN_RANGE_GPIO0           BIT(0)
> >  #define AXP20X_GPIO10_IN_RANGE_GPIO1           BIT(1)
> > -#define AXP20X_GPIO10_IN_RANGE_GPIO0_VAL(x)    ((x) & BIT(0))
> > -#define AXP20X_GPIO10_IN_RANGE_GPIO1_VAL(x)    (((x) & BIT(0)) << 1)
> >
> >  #define AXP20X_ADC_RATE_MASK                   GENMASK(7, 6)
> > -#define AXP813_V_I_ADC_RATE_MASK               GENMASK(5, 4)
> > -#define AXP813_ADC_RATE_MASK                   (AXP20X_ADC_RATE_MASK | AXP813_V_I_ADC_RATE_MASK)
> >  #define AXP20X_ADC_RATE_HZ(x)                  ((ilog2((x) / 25) << 6) & AXP20X_ADC_RATE_MASK)
> > +
> >  #define AXP22X_ADC_RATE_HZ(x)                  ((ilog2((x) / 100) << 6) & AXP20X_ADC_RATE_MASK)
> > +
> > +#define AXP813_V_I_ADC_RATE_MASK               GENMASK(5, 4)
> > +#define AXP813_ADC_RATE_MASK                   (AXP20X_ADC_RATE_MASK | AXP813_V_I_ADC_RATE_MASK)  
> 
> Please also mention "grouping macros based on chip type" in the commit log.
> 
> Otherwise,
> 
> Reviewed-by: Chen-Yu Tsai <wens@...e.org>
With Chen-Yu's suggested changes,

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>

Thanks,

Jonathan