Re: [PATCH v3 01/10] mfd: tps65218: Remove redundant read wrapper

[Keerthy <a0393675@xxxxxx>]

On Tuesday 28 June 2016 12:30 PM, Lee Jones wrote:
> On Tue, 28 Jun 2016, Keerthy wrote:
>
> > Currently read directly calls the repmap read function. Hence
> > remove the redundant wrapper and use regmap read wherever
> > needed.
> >
> > Signed-off-by: Keerthy <j-keerthy@xxxxxx>
> > ---
> >
> > Changes in v3:
> >
> >    * Cleaned up tps65218-pwrbutton and gpio drivers to remove
> >      tps65218_reg_read instances.
> >
> >   drivers/gpio/gpio-tps65218.c            |  3 ++-
> >   drivers/input/misc/tps65218-pwrbutton.c |  3 ++-
> >   drivers/mfd/tps65218.c                  | 16 +---------------
> >   drivers/regulator/tps65218-regulator.c  |  3 ++-
> >   include/linux/mfd/tps65218.h            |  2 --
> >   5 files changed, 7 insertions(+), 20 deletions(-)
>
> I like the idea.  So, as long as the patch is properly build tested:
>
> For the MFD part:
>    Acked-by: Lee Jones <lee.jones@xxxxxxxxxx>

I will do the testing again. Post a v4. With all the suggested changes. 
Thanks for the review.

> > diff --git a/drivers/gpio/gpio-tps65218.c b/drivers/gpio/gpio-tps65218.c
> > index 0eaeac8..0f9d9bd 100644
> > --- a/drivers/gpio/gpio-tps65218.c
> > +++ b/drivers/gpio/gpio-tps65218.c
> > @@ -16,6 +16,7 @@
> >   #include <linux/errno.h>
> >   #include <linux/gpio/driver.h>
> >   #include <linux/platform_device.h>
> > +#include <linux/regmap.h>
> >   #include <linux/mfd/tps65218.h>
> >
> >   struct tps65218_gpio {
> > @@ -30,7 +31,7 @@ static int tps65218_gpio_get(struct gpio_chip *gc, unsigned offset)
> >   	unsigned int val;
> >   	int ret;
> >
> > -	ret = tps65218_reg_read(tps65218, TPS65218_REG_ENABLE2, &val);
> > +	ret = regmap_read(tps65218->regmap, TPS65218_REG_ENABLE2, &val);
> >   	if (ret)
> >   		return ret;
> >
> > diff --git a/drivers/input/misc/tps65218-pwrbutton.c b/drivers/input/misc/tps65218-pwrbutton.c
> > index a39b626..2bba8de 100644
> > --- a/drivers/input/misc/tps65218-pwrbutton.c
> > +++ b/drivers/input/misc/tps65218-pwrbutton.c
> > @@ -22,6 +22,7 @@
> >   #include <linux/module.h>
> >   #include <linux/of.h>
> >   #include <linux/platform_device.h>
> > +#include <linux/regmap.h>
> >   #include <linux/slab.h>
> >
> >   struct tps65218_pwrbutton {
> > @@ -36,7 +37,7 @@ static irqreturn_t tps65218_pwr_irq(int irq, void *_pwr)
> >   	unsigned int reg;
> >   	int error;
> >
> > -	error = tps65218_reg_read(pwr->tps, TPS65218_REG_STATUS, &reg);
> > +	error = regmap_read(pwr->tps->regmap, TPS65218_REG_STATUS, &reg);
> >   	if (error) {
> >   		dev_err(pwr->dev, "can't read register: %d\n", error);
> >   		goto out;
> > diff --git a/drivers/mfd/tps65218.c b/drivers/mfd/tps65218.c
> > index 80b9dc3..f20a531 100644
> > --- a/drivers/mfd/tps65218.c
> > +++ b/drivers/mfd/tps65218.c
> > @@ -34,20 +34,6 @@
> >   #define TPS65218_PASSWORD_REGS_UNLOCK   0x7D
> >
> >   /**
> > - * tps65218_reg_read: Read a single tps65218 register.
> > - *
> > - * @tps: Device to read from.
> > - * @reg: Register to read.
> > - * @val: Contians the value
> > - */
> > -int tps65218_reg_read(struct tps65218 *tps, unsigned int reg,
> > -			unsigned int *val)
> > -{
> > -	return regmap_read(tps->regmap, reg, val);
> > -}
> > -EXPORT_SYMBOL_GPL(tps65218_reg_read);
> > -
> > -/**
> >    * tps65218_reg_write: Write a single tps65218 register.
> >    *
> >    * @tps65218: Device to write to.
> > @@ -93,7 +79,7 @@ static int tps65218_update_bits(struct tps65218 *tps, unsigned int reg,
> >   	int ret;
> >   	unsigned int data;
> >
> > -	ret = tps65218_reg_read(tps, reg, &data);
> > +	ret = regmap_read(tps->regmap, reg, &data);
> >   	if (ret) {
> >   		dev_err(tps->dev, "Read from reg 0x%x failed\n", reg);
> >   		return ret;
> > diff --git a/drivers/regulator/tps65218-regulator.c b/drivers/regulator/tps65218-regulator.c
> > index a5e5634..679ab2f 100644
> > --- a/drivers/regulator/tps65218-regulator.c
> > +++ b/drivers/regulator/tps65218-regulator.c
> > @@ -22,6 +22,7 @@
> >   #include <linux/err.h>
> >   #include <linux/platform_device.h>
> >   #include <linux/of_device.h>
> > +#include <linux/regmap.h>
> >   #include <linux/regulator/of_regulator.h>
> >   #include <linux/regulator/driver.h>
> >   #include <linux/regulator/machine.h>
> > @@ -224,7 +225,7 @@ static int tps65218_pmic_get_current_limit(struct regulator_dev *dev)
> >   	unsigned int index;
> >   	struct tps65218 *tps = rdev_get_drvdata(dev);
> >
> > -	retval = tps65218_reg_read(tps, dev->desc->csel_reg, &index);
> > +	retval = regmap_read(tps->regmap, dev->desc->csel_reg, &index);
> >   	if (retval < 0)
> >   		return retval;
> >
> > diff --git a/include/linux/mfd/tps65218.h b/include/linux/mfd/tps65218.h
> > index d58f3b5..7c9241f 100644
> > --- a/include/linux/mfd/tps65218.h
> > +++ b/include/linux/mfd/tps65218.h
> > @@ -276,8 +276,6 @@ struct tps65218 {
> >   	struct regmap *regmap;
> >   };
> >
> > -int tps65218_reg_read(struct tps65218 *tps, unsigned int reg,
> > -					unsigned int *val);
> >   int tps65218_reg_write(struct tps65218 *tps, unsigned int reg,
> >   			unsigned int val, unsigned int level);
> >   int tps65218_set_bits(struct tps65218 *tps, unsigned int reg,
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