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Date:	Fri, 21 Mar 2014 10:01:58 +0100
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Axel Lin <axel.lin@...ics.com>
Cc:	Mark Brown <broonie@...nel.org>,
	Sangbeom Kim <sbkim73@...sung.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFT] regulator: s5m8767: Convert to use
 regulator_[enable|disable|is_enabled]_regmap

On Fri, 2014-03-21 at 14:54 +0800, Axel Lin wrote:
> Since commit ca5d1b3524b4d
> "regulator: helpers: Modify helpers enabling multi-bit control",
> we can set enable_val setting for device that use multiple bits for control.
> 
> Signed-off-by: Axel Lin <axel.lin@...ics.com>
> ---
>  drivers/regulator/s5m8767.c | 78 +++++++++++----------------------------------
>  1 file changed, 19 insertions(+), 59 deletions(-)

Hi,


Works and looks great, thanks! Tested on board with S5M8767.

Tested-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Reviewed-by Krzysztof Kozlowski <k.kozlowski@...sung.com>


Best regards,
Krzysztof

> 
> diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
> index 342a66ab..f05bada 100644
> --- a/drivers/regulator/s5m8767.c
> +++ b/drivers/regulator/s5m8767.c
> @@ -167,12 +167,11 @@ static unsigned int s5m8767_opmode_reg[][4] = {
>  	{0x0, 0x3, 0x1, 0x1}, /* BUCK9 */
>  };
>  
> -static int s5m8767_get_register(struct regulator_dev *rdev, int *reg,
> -				int *enable_ctrl)
> +static int s5m8767_get_register(struct s5m8767_info *s5m8767, int reg_id,
> +				int *reg, int *enable_ctrl)
>  {
> -	int i, reg_id = rdev_get_id(rdev);
> +	int i;
>  	unsigned int mode;
> -	struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
>  
>  	switch (reg_id) {
>  	case S5M8767_LDO1 ... S5M8767_LDO2:
> @@ -211,53 +210,6 @@ static int s5m8767_get_register(struct regulator_dev *rdev, int *reg,
>  	return 0;
>  }
>  
> -static int s5m8767_reg_is_enabled(struct regulator_dev *rdev)
> -{
> -	struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
> -	int ret, reg;
> -	int enable_ctrl;
> -	unsigned int val;
> -
> -	ret = s5m8767_get_register(rdev, &reg, &enable_ctrl);
> -	if (ret == -EINVAL)
> -		return 1;
> -	else if (ret)
> -		return ret;
> -
> -	ret = regmap_read(s5m8767->iodev->regmap_pmic, reg, &val);
> -	if (ret)
> -		return ret;
> -
> -	return (val & S5M8767_ENCTRL_MASK) == enable_ctrl;
> -}
> -
> -static int s5m8767_reg_enable(struct regulator_dev *rdev)
> -{
> -	struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
> -	int ret, reg;
> -	int enable_ctrl;
> -
> -	ret = s5m8767_get_register(rdev, &reg, &enable_ctrl);
> -	if (ret)
> -		return ret;
> -
> -	return regmap_update_bits(s5m8767->iodev->regmap_pmic, reg,
> -			S5M8767_ENCTRL_MASK, enable_ctrl);
> -}
> -
> -static int s5m8767_reg_disable(struct regulator_dev *rdev)
> -{
> -	struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
> -	int ret, reg, enable_ctrl;
> -
> -	ret = s5m8767_get_register(rdev, &reg, &enable_ctrl);
> -	if (ret)
> -		return ret;
> -
> -	return regmap_update_bits(s5m8767->iodev->regmap_pmic, reg,
> -			S5M8767_ENCTRL_MASK, ~S5M8767_ENCTRL_MASK);
> -}
> -
>  static int s5m8767_get_vsel_reg(int reg_id, struct s5m8767_info *s5m8767)
>  {
>  	int reg;
> @@ -407,9 +359,9 @@ static int s5m8767_set_voltage_time_sel(struct regulator_dev *rdev,
>  
>  static struct regulator_ops s5m8767_ops = {
>  	.list_voltage		= regulator_list_voltage_linear,
> -	.is_enabled		= s5m8767_reg_is_enabled,
> -	.enable			= s5m8767_reg_enable,
> -	.disable		= s5m8767_reg_disable,
> +	.is_enabled		= regulator_is_enabled_regmap,
> +	.enable			= regulator_enable_regmap,
> +	.disable		= regulator_disable_regmap,
>  	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
>  	.set_voltage_sel	= s5m8767_set_voltage_sel,
>  	.set_voltage_time_sel	= s5m8767_set_voltage_time_sel,
> @@ -417,9 +369,9 @@ static struct regulator_ops s5m8767_ops = {
>  
>  static struct regulator_ops s5m8767_buck78_ops = {
>  	.list_voltage		= regulator_list_voltage_linear,
> -	.is_enabled		= s5m8767_reg_is_enabled,
> -	.enable			= s5m8767_reg_enable,
> -	.disable		= s5m8767_reg_disable,
> +	.is_enabled		= regulator_is_enabled_regmap,
> +	.enable			= regulator_enable_regmap,
> +	.disable		= regulator_disable_regmap,
>  	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
>  	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
>  };
> @@ -524,12 +476,13 @@ static void s5m8767_regulator_config_ext_control(struct s5m8767_info *s5m8767,
>  static int s5m8767_enable_ext_control(struct s5m8767_info *s5m8767,
>  		struct regulator_dev *rdev)
>  {
> +	int id = rdev_get_id(rdev);
>  	int ret, reg, enable_ctrl;
>  
> -	if (rdev_get_id(rdev) != S5M8767_BUCK9)
> +	if (id != S5M8767_BUCK9)
>  		return -EINVAL;
>  
> -	ret = s5m8767_get_register(rdev, &reg, &enable_ctrl);
> +	ret = s5m8767_get_register(s5m8767, id, &reg, &enable_ctrl);
>  	if (ret)
>  		return ret;
>  
> @@ -984,6 +937,7 @@ static int s5m8767_pmic_probe(struct platform_device *pdev)
>  	for (i = 0; i < pdata->num_regulators; i++) {
>  		const struct sec_voltage_desc *desc;
>  		int id = pdata->regulators[i].id;
> +		int enable_reg, enable_val;
>  
>  		desc = reg_voltage_map[id];
>  		if (desc) {
> @@ -997,6 +951,12 @@ static int s5m8767_pmic_probe(struct platform_device *pdev)
>  				regulators[id].vsel_mask = 0x3f;
>  			else
>  				regulators[id].vsel_mask = 0xff;
> +
> +			s5m8767_get_register(s5m8767, id, &enable_reg,
> +					     &enable_val);
> +			regulators[id].enable_reg = enable_reg;
> +			regulators[id].enable_mask = S5M8767_ENCTRL_MASK;
> +			regulators[id].enable_val = enable_val;
>  		}
>  
>  		config.dev = s5m8767->dev;

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