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Message-ID: <20111026102849.GA3132@opensource.wolfsonmicro.com>
Date: Wed, 26 Oct 2011 12:28:50 +0200
From: Mark Brown <broonie@...nsource.wolfsonmicro.com>
To: jhbird.choi@...sung.com, lrg@...com
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] regulator: Use regmap_read/write(), regmap_update_bits
functions directly
On Wed, Oct 26, 2011 at 05:25:56PM +0900, jhbird.choi@...sung.com wrote:
> From: Jonghwan Choi <jhbird.choi@...sung.com>
>
> Signed-off-by: Jonghwan Choi <jhbird.choi@...sung.com>
You should always copy maintainers on patches - in this case you've
dropped Liam (added and not cut any text as a result).
Acked-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
> ---
> drivers/regulator/tps65023-regulator.c | 74 +++++++++++--------------------
> 1 files changed, 26 insertions(+), 48 deletions(-)
>
> diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c
> index 701a590..39f57b9 100644
> --- a/drivers/regulator/tps65023-regulator.c
> +++ b/drivers/regulator/tps65023-regulator.c
> @@ -129,48 +129,22 @@ struct tps_pmic {
> struct regmap *regmap;
> };
>
> -static int tps_65023_set_bits(struct tps_pmic *tps, u8 reg, u8 mask)
> -{
> - return regmap_update_bits(tps->regmap, reg, mask, mask);
> -}
> -
> -static int tps_65023_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask)
> -{
> - return regmap_update_bits(tps->regmap, reg, mask, 0);
> -}
> -
> -static int tps_65023_reg_read(struct tps_pmic *tps, u8 reg)
> -{
> - unsigned int val;
> - int ret;
> -
> - ret = regmap_read(tps->regmap, reg, &val);
> -
> - if (ret != 0)
> - return ret;
> - else
> - return val;
> -}
> -
> -static int tps_65023_reg_write(struct tps_pmic *tps, u8 reg, u8 val)
> -{
> - return regmap_write(tps->regmap, reg, val);
> -}
>
> static int tps65023_dcdc_is_enabled(struct regulator_dev *dev)
> {
> struct tps_pmic *tps = rdev_get_drvdata(dev);
> int data, dcdc = rdev_get_id(dev);
> + int ret;
> u8 shift;
>
> if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
> return -EINVAL;
>
> shift = TPS65023_NUM_REGULATOR - dcdc;
> - data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL);
> + ret = regmap_read(tps->regmap, TPS65023_REG_REG_CTRL, &data);
>
> - if (data < 0)
> - return data;
> + if (ret != 0)
> + return ret;
> else
> return (data & 1<<shift) ? 1 : 0;
> }
> @@ -179,16 +153,17 @@ static int tps65023_ldo_is_enabled(struct regulator_dev *dev)
> {
> struct tps_pmic *tps = rdev_get_drvdata(dev);
> int data, ldo = rdev_get_id(dev);
> + int ret;
> u8 shift;
>
> if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
> return -EINVAL;
>
> shift = (ldo == TPS65023_LDO_1 ? 1 : 2);
> - data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL);
> + ret = regmap_read(tps->regmap, TPS65023_REG_REG_CTRL, &data);
>
> - if (data < 0)
> - return data;
> + if (ret != 0)
> + return ret;
> else
> return (data & 1<<shift) ? 1 : 0;
> }
> @@ -203,7 +178,7 @@ static int tps65023_dcdc_enable(struct regulator_dev *dev)
> return -EINVAL;
>
> shift = TPS65023_NUM_REGULATOR - dcdc;
> - return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift);
> + return regmap_update_bits(tps->regmap, TPS65023_REG_REG_CTRL, 1 << shift, 1 << shift);
> }
>
> static int tps65023_dcdc_disable(struct regulator_dev *dev)
> @@ -216,7 +191,7 @@ static int tps65023_dcdc_disable(struct regulator_dev *dev)
> return -EINVAL;
>
> shift = TPS65023_NUM_REGULATOR - dcdc;
> - return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift);
> + return regmap_update_bits(tps->regmap, TPS65023_REG_REG_CTRL, 1 << shift, 0);
> }
>
> static int tps65023_ldo_enable(struct regulator_dev *dev)
> @@ -229,7 +204,7 @@ static int tps65023_ldo_enable(struct regulator_dev *dev)
> return -EINVAL;
>
> shift = (ldo == TPS65023_LDO_1 ? 1 : 2);
> - return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift);
> + return regmap_update_bits(tps->regmap, TPS65023_REG_REG_CTRL, 1 << shift, 1 << shift);
> }
>
> static int tps65023_ldo_disable(struct regulator_dev *dev)
> @@ -242,21 +217,22 @@ static int tps65023_ldo_disable(struct regulator_dev *dev)
> return -EINVAL;
>
> shift = (ldo == TPS65023_LDO_1 ? 1 : 2);
> - return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift);
> + return regmap_update_bits(tps->regmap, TPS65023_REG_REG_CTRL, 1 << shift, 0);
> }
>
> static int tps65023_dcdc_get_voltage(struct regulator_dev *dev)
> {
> struct tps_pmic *tps = rdev_get_drvdata(dev);
> + int ret;
> int data, dcdc = rdev_get_id(dev);
>
> if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
> return -EINVAL;
>
> if (dcdc == TPS65023_DCDC_1) {
> - data = tps_65023_reg_read(tps, TPS65023_REG_DEF_CORE);
> - if (data < 0)
> - return data;
> + ret = regmap_read(tps->regmap, TPS65023_REG_DEF_CORE, &data);
> + if (ret != 0)
> + return ret;
> data &= (tps->info[dcdc]->table_len - 1);
> return tps->info[dcdc]->table[data] * 1000;
> } else
> @@ -296,20 +272,21 @@ static int tps65023_dcdc_set_voltage(struct regulator_dev *dev,
> if (vsel == tps->info[dcdc]->table_len)
> return -EINVAL;
> else
> - return tps_65023_reg_write(tps, TPS65023_REG_DEF_CORE, vsel);
> + return regmap_write(tps->regmap, TPS65023_REG_DEF_CORE, vsel);
> }
>
> static int tps65023_ldo_get_voltage(struct regulator_dev *dev)
> {
> struct tps_pmic *tps = rdev_get_drvdata(dev);
> int data, ldo = rdev_get_id(dev);
> + int ret;
>
> if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
> return -EINVAL;
>
> - data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL);
> - if (data < 0)
> - return data;
> + ret = regmap_read(tps->regmap, TPS65023_REG_LDO_CTRL, &data);
> + if (ret != 0)
> + return ret;
>
> data >>= (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1));
> data &= (tps->info[ldo]->table_len - 1);
> @@ -321,6 +298,7 @@ static int tps65023_ldo_set_voltage(struct regulator_dev *dev,
> {
> struct tps_pmic *tps = rdev_get_drvdata(dev);
> int data, vsel, ldo = rdev_get_id(dev);
> + int ret;
>
> if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
> return -EINVAL;
> @@ -344,13 +322,13 @@ static int tps65023_ldo_set_voltage(struct regulator_dev *dev,
>
> *selector = vsel;
>
> - data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL);
> - if (data < 0)
> - return data;
> + ret = regmap_read(tps->regmap, TPS65023_REG_LDO_CTRL, &data);
> + if (ret != 0)
> + return ret;
>
> data &= TPS65023_LDO_CTRL_LDOx_MASK(ldo - TPS65023_LDO_1);
> data |= (vsel << (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1)));
> - return tps_65023_reg_write(tps, TPS65023_REG_LDO_CTRL, data);
> + return regmap_write(tps->regmap, TPS65023_REG_LDO_CTRL, data);
> }
>
> static int tps65023_dcdc_list_voltage(struct regulator_dev *dev,
> --
> 1.7.1
>
--
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