linux-kernel - Re: [PATCH v2 2/2] regulator: Convert pcf50633 to get_voltage

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Date:	Sun, 18 Mar 2012 12:09:53 +0100
From:	Lars-Peter Clausen <lars@...afoo.de>
To:	Axel Lin <axel.lin@...il.com>
CC:	linux-kernel@...r.kernel.org, Liam Girdwood <lrg@...com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: Re: [PATCH v2 2/2] regulator: Convert pcf50633 to get_voltage_sel

On 03/17/2012 01:08 AM, Axel Lin wrote:
> Convert pcf50633 to get_voltage_sel and then we can remove
> pcf50633_regulator_voltage_value function and move its implementation
> to pcf50633_regulator_list_voltage.
> 
> Signed-off-by: Axel Lin <axel.lin@...il.com>

Acked-by: Lars-Peter Clausen <lars@...afoo.de>

One minor comment inline though.

> ---
>  drivers/regulator/pcf50633-regulator.c |   65 ++++++++++++++-----------------
>  1 files changed, 29 insertions(+), 36 deletions(-)
> 
> diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c
> index 9ef7dff..b02cbb9 100644
> --- a/drivers/regulator/pcf50633-regulator.c
> +++ b/drivers/regulator/pcf50633-regulator.c
> @@ -151,23 +151,43 @@ static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev,
>  	return pcf50633_reg_write(pcf, regnr, volt_bits);
>  }
>  
> -static int pcf50633_regulator_voltage_value(enum pcf50633_regulator_id id,
> -						u8 bits)
> +static int pcf50633_regulator_get_voltage_sel(struct regulator_dev *rdev)
>  {
> +	struct pcf50633 *pcf;
> +	int regulator_id;
> +	u8 volt_bits, regnr;
> +
> +	pcf = rdev_get_drvdata(rdev);
> +
> +	regulator_id = rdev_get_id(rdev);
> +	if (regulator_id >= PCF50633_NUM_REGULATORS)
> +		return -EINVAL;
> +
> +	regnr = pcf50633_regulator_registers[regulator_id];
> +
> +	volt_bits = pcf50633_reg_read(pcf, regnr);
> +
> +	return volt_bits;

Might as well just do "return pcf50633_reg_read(pcf, regnr);"


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