[U-Boot] [PATCH v1 2/7] power: pmic: rk816: support rk816 pmic

Kever Yang kever.yang at rock-chips.com
Wed Sep 4 07:45:43 UTC 2019


Hi Elaine,

     Please add commit message for each patch, eg. for new pmic support,

you can share some pmic feature in commit message.


Thanks,

- Kever

On 2019/9/4 下午3:08, Elaine Zhang wrote:
> Signed-off-by: Elaine Zhang <zhangqing at rock-chips.com>
> ---
>   drivers/power/pmic/rk8xx.c      |   1 +
>   drivers/power/regulator/rk8xx.c | 674 +++++++++++++++++++++++++++++++++++-----
>   include/power/rk8xx_pmic.h      |  11 +-
>   3 files changed, 600 insertions(+), 86 deletions(-)
>
> diff --git a/drivers/power/pmic/rk8xx.c b/drivers/power/pmic/rk8xx.c
> index 25c339ab12cc..1900de9d1cdb 100644
> --- a/drivers/power/pmic/rk8xx.c
> +++ b/drivers/power/pmic/rk8xx.c
> @@ -95,6 +95,7 @@ static struct dm_pmic_ops rk8xx_ops = {
>   
>   static const struct udevice_id rk8xx_ids[] = {
>   	{ .compatible = "rockchip,rk808" },
> +	{ .compatible = "rockchip,rk816" },
>   	{ .compatible = "rockchip,rk818" },
>   	{ }
>   };
> diff --git a/drivers/power/regulator/rk8xx.c b/drivers/power/regulator/rk8xx.c
> index aa4f3a161c47..a62af0b467ef 100644
> --- a/drivers/power/regulator/rk8xx.c
> +++ b/drivers/power/regulator/rk8xx.c
> @@ -1,4 +1,3 @@
> -// SPDX-License-Identifier: GPL-2.0+
>   /*
>    * Copyright (C) 2015 Google, Inc
>    * Written by Simon Glass <sjg at chromium.org>
> @@ -6,6 +5,8 @@
>    * Based on Rockchip's drivers/power/pmic/pmic_rk808.c:
>    * Copyright (C) 2012 rockchips
>    * zyw <zyw at rock-chips.com>
> + *
> + * SPDX-License-Identifier:	GPL-2.0+


This update is not correct, please drop it.

>    */
>   
>   #include <common.h>
> @@ -19,6 +20,9 @@
>   #define ENABLE_DRIVER
>   #endif
>   
> +/* Not used or exisit register and configure */
> +#define NA			-1
> +
>   /* Field Definitions */
>   #define RK808_BUCK_VSEL_MASK	0x3f
>   #define RK808_BUCK4_VSEL_MASK	0xf
> @@ -32,49 +36,85 @@
>   #define RK818_USB_ILIM_SEL_MASK		0x0f
>   #define RK818_USB_CHG_SD_VSEL_MASK	0x70
>   
> +/*
> + * Ramp delay
> + */
> +#define RK808_RAMP_RATE_OFFSET		3
> +#define RK808_RAMP_RATE_MASK		(3 << RK808_RAMP_RATE_OFFSET)
> +#define RK808_RAMP_RATE_2MV_PER_US	(0 << RK808_RAMP_RATE_OFFSET)
> +#define RK808_RAMP_RATE_4MV_PER_US	(1 << RK808_RAMP_RATE_OFFSET)
> +#define RK808_RAMP_RATE_6MV_PER_US	(2 << RK808_RAMP_RATE_OFFSET)
> +#define RK808_RAMP_RATE_10MV_PER_US	(3 << RK808_RAMP_RATE_OFFSET)
>   
>   struct rk8xx_reg_info {
>   	uint min_uv;
>   	uint step_uv;
> -	s8 vsel_reg;
> +	u8 vsel_reg;
> +	u8 vsel_sleep_reg;
> +	u8 config_reg;
>   	u8 vsel_mask;
> +	u8 min_sel;
>   };
>   
>   static const struct rk8xx_reg_info rk808_buck[] = {
> -	{ 712500, 12500, REG_BUCK1_ON_VSEL, RK808_BUCK_VSEL_MASK, },
> -	{ 712500, 12500, REG_BUCK2_ON_VSEL, RK808_BUCK_VSEL_MASK, },
> -	{ 712500, 12500, -1, RK808_BUCK_VSEL_MASK, },
> -	{ 1800000, 100000, REG_BUCK4_ON_VSEL, RK808_BUCK4_VSEL_MASK, },
> +	{ 712500,   12500, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK808_BUCK_VSEL_MASK, },
> +	{ 712500,   12500, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK808_BUCK_VSEL_MASK, },
> +	{ 712500,   12500, NA,		      NA,		  REG_BUCK3_CONFIG, RK808_BUCK_VSEL_MASK, },
> +	{ 1800000, 100000, REG_BUCK4_ON_VSEL, REG_BUCK4_SLP_VSEL, REG_BUCK4_CONFIG, RK808_BUCK4_VSEL_MASK, },
> +};


Please split rk808/rk818 code update and add new pmic rk816 into 
different patches.

Thanks,
- Kever
> +
> +static const struct rk8xx_reg_info rk816_buck[] = {
> +	/* buck 1 */
> +	{  712500,  12500, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK818_BUCK_VSEL_MASK, 0x00, },
> +	{ 1800000, 200000, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK818_BUCK_VSEL_MASK, 0x3c, },
> +	{ 2300000,      0, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK818_BUCK_VSEL_MASK, 0x3f, },
> +	/* buck 2 */
> +	{  712500,  12500, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK818_BUCK_VSEL_MASK, 0x00, },
> +	{ 1800000, 200000, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK818_BUCK_VSEL_MASK, 0x3c, },
> +	{ 2300000,      0, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK818_BUCK_VSEL_MASK, 0x3f, },
> +	/* buck 3 */
> +	{ 712500,   12500, NA,		      NA,		  REG_BUCK3_CONFIG, RK818_BUCK_VSEL_MASK, },
> +	/* buck 4 */
> +	{  800000, 100000, REG_BUCK4_ON_VSEL, REG_BUCK4_SLP_VSEL, REG_BUCK4_CONFIG, RK818_BUCK4_VSEL_MASK, },
>   };
>   
>   static const struct rk8xx_reg_info rk818_buck[] = {
> -	{ 712500, 12500, REG_BUCK1_ON_VSEL, RK818_BUCK_VSEL_MASK, },
> -	{ 712500, 12500, REG_BUCK2_ON_VSEL, RK818_BUCK_VSEL_MASK, },
> -	{ 712500, 12500, -1, RK818_BUCK_VSEL_MASK, },
> -	{ 1800000, 100000, REG_BUCK4_ON_VSEL, RK818_BUCK4_VSEL_MASK, },
> +	{ 712500,   12500, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK818_BUCK_VSEL_MASK, },
> +	{ 712500,   12500, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK818_BUCK_VSEL_MASK, },
> +	{ 712500,   12500, NA,		      NA,		  REG_BUCK3_CONFIG, RK818_BUCK_VSEL_MASK, },
> +	{ 1800000, 100000, REG_BUCK4_ON_VSEL, REG_BUCK4_SLP_VSEL, REG_BUCK4_CONFIG, RK818_BUCK4_VSEL_MASK, },
>   };
>   
>   #ifdef ENABLE_DRIVER
>   static const struct rk8xx_reg_info rk808_ldo[] = {
> -	{ 1800000, 100000, REG_LDO1_ON_VSEL, RK808_LDO_VSEL_MASK, },
> -	{ 1800000, 100000, REG_LDO2_ON_VSEL, RK808_LDO_VSEL_MASK, },
> -	{ 800000, 100000, REG_LDO3_ON_VSEL, RK808_BUCK4_VSEL_MASK, },
> -	{ 1800000, 100000, REG_LDO4_ON_VSEL, RK808_LDO_VSEL_MASK, },
> -	{ 1800000, 100000, REG_LDO5_ON_VSEL, RK808_LDO_VSEL_MASK, },
> -	{ 800000, 100000, REG_LDO6_ON_VSEL, RK808_LDO_VSEL_MASK, },
> -	{ 800000, 100000, REG_LDO7_ON_VSEL, RK808_LDO_VSEL_MASK, },
> -	{ 1800000, 100000, REG_LDO8_ON_VSEL, RK808_LDO_VSEL_MASK, },
> +	{ 1800000, 100000, REG_LDO1_ON_VSEL, REG_LDO1_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
> +	{ 1800000, 100000, REG_LDO2_ON_VSEL, REG_LDO2_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
> +	{  800000, 100000, REG_LDO3_ON_VSEL, REG_LDO3_SLP_VSEL, NA, RK808_BUCK4_VSEL_MASK, },
> +	{ 1800000, 100000, REG_LDO4_ON_VSEL, REG_LDO4_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
> +	{ 1800000, 100000, REG_LDO5_ON_VSEL, REG_LDO5_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
> +	{  800000, 100000, REG_LDO6_ON_VSEL, REG_LDO6_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
> +	{  800000, 100000, REG_LDO7_ON_VSEL, REG_LDO7_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
> +	{ 1800000, 100000, REG_LDO8_ON_VSEL, REG_LDO8_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
> +};
> +
> +static const struct rk8xx_reg_info rk816_ldo[] = {
> +	{ 800000, 100000, REG_LDO1_ON_VSEL, REG_LDO1_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
> +	{ 800000, 100000, REG_LDO2_ON_VSEL, REG_LDO2_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
> +	{ 800000, 100000, REG_LDO3_ON_VSEL, REG_LDO3_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
> +	{ 800000, 100000, REG_LDO4_ON_VSEL, REG_LDO4_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
> +	{ 800000, 100000, REG_LDO5_ON_VSEL, REG_LDO5_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
> +	{ 800000, 100000, REG_LDO6_ON_VSEL, REG_LDO6_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
>   };
>   
>   static const struct rk8xx_reg_info rk818_ldo[] = {
> -	{ 1800000, 100000, REG_LDO1_ON_VSEL, RK818_LDO_VSEL_MASK, },
> -	{ 1800000, 100000, REG_LDO2_ON_VSEL, RK818_LDO_VSEL_MASK, },
> -	{ 800000, 100000, REG_LDO3_ON_VSEL, RK818_LDO3_ON_VSEL_MASK, },
> -	{ 1800000, 100000, REG_LDO4_ON_VSEL, RK818_LDO_VSEL_MASK, },
> -	{ 1800000, 100000, REG_LDO5_ON_VSEL, RK818_LDO_VSEL_MASK, },
> -	{ 800000, 100000, REG_LDO6_ON_VSEL, RK818_LDO_VSEL_MASK, },
> -	{ 800000, 100000, REG_LDO7_ON_VSEL, RK818_LDO_VSEL_MASK, },
> -	{ 1800000, 100000, REG_LDO8_ON_VSEL, RK818_LDO_VSEL_MASK, },
> +	{ 1800000, 100000, REG_LDO1_ON_VSEL, REG_LDO1_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
> +	{ 1800000, 100000, REG_LDO2_ON_VSEL, REG_LDO2_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
> +	{  800000, 100000, REG_LDO3_ON_VSEL, REG_LDO3_SLP_VSEL, NA, RK818_LDO3_ON_VSEL_MASK, },
> +	{ 1800000, 100000, REG_LDO4_ON_VSEL, REG_LDO4_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
> +	{ 1800000, 100000, REG_LDO5_ON_VSEL, REG_LDO5_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
> +	{  800000, 100000, REG_LDO6_ON_VSEL, REG_LDO6_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
> +	{  800000, 100000, REG_LDO7_ON_VSEL, REG_LDO7_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
> +	{ 1800000, 100000, REG_LDO8_ON_VSEL, REG_LDO8_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
>   };
>   #endif
>   
> @@ -87,10 +127,24 @@ static const uint rk818_chrg_shutdown_vsel_array[] = {
>   };
>   
>   static const struct rk8xx_reg_info *get_buck_reg(struct udevice *pmic,
> -					     int num)
> +						 int num, int uvolt)
>   {
>   	struct rk8xx_priv *priv = dev_get_priv(pmic);
> +
>   	switch (priv->variant) {
> +	case RK816_ID:
> +		switch (num) {
> +		case 0:
> +		case 1:
> +			if (uvolt <= 1450000)
> +				return &rk816_buck[num * 3 + 0];
> +			else if (uvolt <= 2200000)
> +				return &rk816_buck[num * 3 + 1];
> +			else
> +				return &rk816_buck[num * 3 + 2];
> +		default:
> +			return &rk816_buck[num + 4];
> +		}
>   	case RK818_ID:
>   		return &rk818_buck[num];
>   	default:
> @@ -100,44 +154,185 @@ static const struct rk8xx_reg_info *get_buck_reg(struct udevice *pmic,
>   
>   static int _buck_set_value(struct udevice *pmic, int buck, int uvolt)
>   {
> -	const struct rk8xx_reg_info *info = get_buck_reg(pmic, buck - 1);
> +	const struct rk8xx_reg_info *info = get_buck_reg(pmic, buck, uvolt);
> +	struct rk8xx_priv *priv = dev_get_priv(pmic);
>   	int mask = info->vsel_mask;
>   	int val;
>   
> -	if (info->vsel_reg == -1)
> +	if (info->vsel_reg == NA)
>   		return -ENOSYS;
> -	val = (uvolt - info->min_uv) / info->step_uv;
> -	debug("%s: reg=%x, mask=%x, val=%x\n", __func__, info->vsel_reg, mask,
> -	      val);
>   
> -	return pmic_clrsetbits(pmic, info->vsel_reg, mask, val);
> +	if (info->step_uv == 0)	/* Fixed voltage */
> +		val = info->min_sel;
> +	else
> +		val = ((uvolt - info->min_uv) / info->step_uv) + info->min_sel;
> +
> +	debug("%s: volt=%d, buck=%d, reg=0x%x, mask=0x%x, val=0x%x\n",
> +	      __func__, uvolt, buck + 1, info->vsel_reg, mask, val);
> +
> +	if (priv->variant == RK816_ID) {
> +		pmic_clrsetbits(pmic, info->vsel_reg, mask, val);
> +		return pmic_clrsetbits(pmic, RK816_REG_DCDC_EN2,
> +				       1 << 7, 1 << 7);
> +	} else {
> +		return pmic_clrsetbits(pmic, info->vsel_reg, mask, val);
> +	}
>   }
>   
>   static int _buck_set_enable(struct udevice *pmic, int buck, bool enable)
>   {
> -	uint mask;
> +	uint mask, value, en_reg;
>   	int ret;
> +	struct rk8xx_priv *priv = dev_get_priv(pmic);
>   
> -	buck--;
> -	mask = 1 << buck;
> -	if (enable) {
> -		ret = pmic_clrsetbits(pmic, REG_DCDC_ILMAX, 0, 3 << (buck * 2));
> -		if (ret)
> -			return ret;
> -		ret = pmic_clrsetbits(pmic, REG_DCDC_UV_ACT, 1 << buck, 0);
> -		if (ret)
> -			return ret;
> +	switch (priv->variant) {
> +	case RK816_ID:
> +		if (buck >= 4) {
> +			buck -= 4;
> +			en_reg = RK816_REG_DCDC_EN2;
> +		} else {
> +			en_reg = RK816_REG_DCDC_EN1;
> +		}
> +		if (enable)
> +			value = ((1 << buck) | (1 << (buck + 4)));
> +		else
> +			value = ((0 << buck) | (1 << (buck + 4)));
> +		ret = pmic_reg_write(pmic, en_reg, value);
> +		break;
> +
> +	case RK808_ID:
> +	case RK818_ID:
> +		mask = 1 << buck;
> +		if (enable) {
> +			ret = pmic_clrsetbits(pmic, REG_DCDC_ILMAX,
> +					      0, 3 << (buck * 2));
> +			if (ret)
> +				return ret;
> +		}
> +		ret = pmic_clrsetbits(pmic, REG_DCDC_EN, mask,
> +				      enable ? mask : 0);
> +		break;
> +	default:
> +		ret = -EINVAL;
>   	}
>   
> -	return pmic_clrsetbits(pmic, REG_DCDC_EN, mask, enable ? mask : 0);
> +	return ret;
>   }
>   
>   #ifdef ENABLE_DRIVER
> +static int _buck_set_suspend_value(struct udevice *pmic, int buck, int uvolt)
> +{
> +	const struct rk8xx_reg_info *info = get_buck_reg(pmic, buck, uvolt);
> +	int mask = info->vsel_mask;
> +	int val;
> +
> +	if (info->vsel_sleep_reg == NA)
> +		return -ENOSYS;
> +
> +	if (info->step_uv == 0)
> +		val = info->min_sel;
> +	else
> +		val = ((uvolt - info->min_uv) / info->step_uv) + info->min_sel;
> +
> +	debug("%s: volt=%d, buck=%d, reg=0x%x, mask=0x%x, val=0x%x\n",
> +	      __func__, uvolt, buck + 1, info->vsel_sleep_reg, mask, val);
> +
> +	return pmic_clrsetbits(pmic, info->vsel_sleep_reg, mask, val);
> +}
> +
> +static int _buck_get_enable(struct udevice *pmic, int buck)
> +{
> +	struct rk8xx_priv *priv = dev_get_priv(pmic);
> +	uint mask = 0;
> +	int ret = 0;
> +
> +	switch (priv->variant) {
> +	case RK816_ID:
> +		if (buck >= 4) {
> +			mask = 1 << (buck - 4);
> +			ret = pmic_reg_read(pmic, RK816_REG_DCDC_EN2);
> +		} else {
> +			mask = 1 << buck;
> +			ret = pmic_reg_read(pmic, RK816_REG_DCDC_EN1);
> +		}
> +		break;
> +	case RK808_ID:
> +	case RK818_ID:
> +		mask = 1 << buck;
> +		ret = pmic_reg_read(pmic, REG_DCDC_EN);
> +		if (ret < 0)
> +			return ret;
> +		break;
> +	}
> +
> +	if (ret < 0)
> +		return ret;
> +
> +	return ret & mask ? true : false;
> +}
> +
> +static int _buck_set_suspend_enable(struct udevice *pmic, int buck, bool enable)
> +{
> +	uint mask;
> +	int ret;
> +	struct rk8xx_priv *priv = dev_get_priv(pmic);
> +
> +	switch (priv->variant) {
> +	case RK816_ID:
> +		mask = 1 << buck;
> +		ret = pmic_clrsetbits(pmic, RK816_REG_DCDC_SLP_EN, mask,
> +				      enable ? mask : 0);
> +		break;
> +	case RK808_ID:
> +	case RK818_ID:
> +		mask = 1 << buck;
> +		ret = pmic_clrsetbits(pmic, REG_SLEEP_SET_OFF1, mask,
> +				      enable ? 0 : mask);
> +		break;
> +	default:
> +		ret = -EINVAL;
> +	}
> +
> +	return ret;
> +}
> +
> +static int _buck_get_suspend_enable(struct udevice *pmic, int buck)
> +{
> +	struct rk8xx_priv *priv = dev_get_priv(pmic);
> +	int ret, val;
> +	uint mask;
> +
> +	switch (priv->variant) {
> +	case RK816_ID:
> +		mask = 1 << buck;
> +		val = pmic_reg_read(pmic, RK816_REG_DCDC_SLP_EN);
> +		if (val < 0)
> +			return val;
> +		ret = val & mask ? 1 : 0;
> +		break;
> +	case RK808_ID:
> +	case RK818_ID:
> +		mask = 1 << buck;
> +		val = pmic_reg_read(pmic, REG_SLEEP_SET_OFF1);
> +		if (val < 0)
> +			return val;
> +		ret = val & mask ? 0 : 1;
> +		break;
> +	default:
> +		ret = -EINVAL;
> +	}
> +
> +	return ret;
> +}
> +
>   static const struct rk8xx_reg_info *get_ldo_reg(struct udevice *pmic,
> -					     int num)
> +						int num, int uvolt)
>   {
>   	struct rk8xx_priv *priv = dev_get_priv(pmic);
> +
>   	switch (priv->variant) {
> +	case RK816_ID:
> +		return &rk816_ldo[num];
>   	case RK818_ID:
>   		return &rk818_ldo[num];
>   	default:
> @@ -145,15 +340,131 @@ static const struct rk8xx_reg_info *get_ldo_reg(struct udevice *pmic,
>   	}
>   }
>   
> +static int _ldo_get_enable(struct udevice *pmic, int ldo)
> +{
> +	struct rk8xx_priv *priv = dev_get_priv(pmic);
> +	uint mask = 0;
> +	int ret = 0;
> +
> +	switch (priv->variant) {
> +	case RK816_ID:
> +		if (ldo >= 4) {
> +			mask = 1 << (ldo - 4);
> +			ret = pmic_reg_read(pmic, RK816_REG_LDO_EN2);
> +		} else {
> +			mask = 1 << ldo;
> +			ret = pmic_reg_read(pmic, RK816_REG_LDO_EN1);
> +		}
> +		break;
> +	case RK808_ID:
> +	case RK818_ID:
> +		mask = 1 << ldo;
> +		ret = pmic_reg_read(pmic, REG_LDO_EN);
> +		if (ret < 0)
> +			return ret;
> +		break;
> +	}
> +
> +	if (ret < 0)
> +		return ret;
> +
> +	return ret & mask ? true : false;
> +}
> +
> +
> +static int _ldo_set_enable(struct udevice *pmic, int ldo, bool enable)
> +{
> +	struct rk8xx_priv *priv = dev_get_priv(pmic);
> +	uint mask, value, en_reg;
> +	int ret = 0;
> +
> +	switch (priv->variant) {
> +	case RK816_ID:
> +		if (ldo >= 4) {
> +			ldo -= 4;
> +			en_reg = RK816_REG_LDO_EN2;
> +		} else {
> +			en_reg = RK816_REG_LDO_EN1;
> +		}
> +		if (enable)
> +			value = ((1 << ldo) | (1 << (ldo + 4)));
> +		else
> +			value = ((0 << ldo) | (1 << (ldo + 4)));
> +
> +		ret = pmic_reg_write(pmic, en_reg, value);
> +		break;
> +	case RK808_ID:
> +	case RK818_ID:
> +		mask = 1 << ldo;
> +		ret = pmic_clrsetbits(pmic, REG_LDO_EN, mask,
> +				       enable ? mask : 0);
> +		break;
> +	}
> +
> +	return ret;
> +}
> +
> +static int _ldo_set_suspend_enable(struct udevice *pmic, int ldo, bool enable)
> +{
> +	struct rk8xx_priv *priv = dev_get_priv(pmic);
> +	uint mask;
> +	int ret = 0;
> +
> +	switch (priv->variant) {
> +	case RK816_ID:
> +		mask = 1 << ldo;
> +		ret = pmic_clrsetbits(pmic, RK816_REG_LDO_SLP_EN, mask,
> +				      enable ? mask : 0);
> +		break;
> +	case RK808_ID:
> +	case RK818_ID:
> +		mask = 1 << ldo;
> +		ret = pmic_clrsetbits(pmic, REG_SLEEP_SET_OFF2, mask,
> +				      enable ? 0 : mask);
> +		break;
> +	}
> +
> +	return ret;
> +}
> +
> +static int _ldo_get_suspend_enable(struct udevice *pmic, int ldo)
> +{
> +	struct rk8xx_priv *priv = dev_get_priv(pmic);
> +	int val, ret = 0;
> +	uint mask;
> +
> +	switch (priv->variant) {
> +	case RK816_ID:
> +		mask = 1 << ldo;
> +		val = pmic_reg_read(pmic, RK816_REG_LDO_SLP_EN);
> +		if (val < 0)
> +			return val;
> +		ret = val & mask ? 1 : 0;
> +		break;
> +	case RK808_ID:
> +	case RK818_ID:
> +		mask = 1 << ldo;
> +		val = pmic_reg_read(pmic, REG_SLEEP_SET_OFF2);
> +		if (val < 0)
> +			return val;
> +		ret = val & mask ? 0 : 1;
> +		break;
> +	}
> +
> +	return ret;
> +}
> +
>   static int buck_get_value(struct udevice *dev)
>   {
>   	int buck = dev->driver_data - 1;
> -	const struct rk8xx_reg_info *info = get_buck_reg(dev->parent, buck);
> +	/* We assume level-1 voltage is enough for usage in U-Boot */
> +	const struct rk8xx_reg_info *info = get_buck_reg(dev->parent, buck, 0);
>   	int mask = info->vsel_mask;
>   	int ret, val;
>   
> -	if (info->vsel_reg == -1)
> +	if (info->vsel_reg == NA)
>   		return -ENOSYS;
> +
>   	ret = pmic_reg_read(dev->parent, info->vsel_reg);
>   	if (ret < 0)
>   		return ret;
> @@ -164,41 +475,74 @@ static int buck_get_value(struct udevice *dev)
>   
>   static int buck_set_value(struct udevice *dev, int uvolt)
>   {
> -	int buck = dev->driver_data;
> +	int buck = dev->driver_data - 1;
>   
>   	return _buck_set_value(dev->parent, buck, uvolt);
>   }
>   
> +static int buck_get_suspend_value(struct udevice *dev)
> +{
> +	int buck = dev->driver_data - 1;
> +	/* We assume level-1 voltage is enough for usage in U-Boot */
> +	const struct rk8xx_reg_info *info = get_buck_reg(dev->parent, buck, 0);
> +	int mask = info->vsel_mask;
> +	int ret, val;
> +
> +	if (info->vsel_sleep_reg == NA)
> +		return -ENOSYS;
> +
> +	ret = pmic_reg_read(dev->parent, info->vsel_sleep_reg);
> +	if (ret < 0)
> +		return ret;
> +
> +	val = ret & mask;
> +
> +	return info->min_uv + val * info->step_uv;
> +}
> +
> +static int buck_set_suspend_value(struct udevice *dev, int uvolt)
> +{
> +	int buck = dev->driver_data - 1;
> +
> +	return _buck_set_suspend_value(dev->parent, buck, uvolt);
> +}
> +
>   static int buck_set_enable(struct udevice *dev, bool enable)
>   {
> -	int buck = dev->driver_data;
> +	int buck = dev->driver_data - 1;
>   
>   	return _buck_set_enable(dev->parent, buck, enable);
>   }
>   
> -static int buck_get_enable(struct udevice *dev)
> +static int buck_set_suspend_enable(struct udevice *dev, bool enable)
>   {
>   	int buck = dev->driver_data - 1;
> -	int ret;
> -	uint mask;
>   
> -	mask = 1 << buck;
> +	return _buck_set_suspend_enable(dev->parent, buck, enable);
> +}
>   
> -	ret = pmic_reg_read(dev->parent, REG_DCDC_EN);
> -	if (ret < 0)
> -		return ret;
> +static int buck_get_suspend_enable(struct udevice *dev)
> +{
> +	int buck = dev->driver_data - 1;
>   
> -	return ret & mask ? true : false;
> +	return _buck_get_suspend_enable(dev->parent, buck);
> +}
> +
> +static int buck_get_enable(struct udevice *dev)
> +{
> +	int buck = dev->driver_data - 1;
> +
> +	return _buck_get_enable(dev->parent, buck);
>   }
>   
>   static int ldo_get_value(struct udevice *dev)
>   {
>   	int ldo = dev->driver_data - 1;
> -	const struct rk8xx_reg_info *info = get_ldo_reg(dev->parent, ldo);
> +	const struct rk8xx_reg_info *info = get_ldo_reg(dev->parent, ldo, 0);
>   	int mask = info->vsel_mask;
>   	int ret, val;
>   
> -	if (info->vsel_reg == -1)
> +	if (info->vsel_reg == NA)
>   		return -ENOSYS;
>   	ret = pmic_reg_read(dev->parent, info->vsel_reg);
>   	if (ret < 0)
> @@ -211,71 +555,217 @@ static int ldo_get_value(struct udevice *dev)
>   static int ldo_set_value(struct udevice *dev, int uvolt)
>   {
>   	int ldo = dev->driver_data - 1;
> -	const struct rk8xx_reg_info *info = get_ldo_reg(dev->parent, ldo);
> +	const struct rk8xx_reg_info *info = get_ldo_reg(dev->parent, ldo, uvolt);
>   	int mask = info->vsel_mask;
>   	int val;
>   
> -	if (info->vsel_reg == -1)
> +	if (info->vsel_reg == NA)
>   		return -ENOSYS;
> -	val = (uvolt - info->min_uv) / info->step_uv;
> -	debug("%s: reg=%x, mask=%x, val=%x\n", __func__, info->vsel_reg, mask,
> -	      val);
> +
> +	if (info->step_uv == 0)
> +		val = info->min_sel;
> +	else
> +		val = ((uvolt - info->min_uv) / info->step_uv) + info->min_sel;
> +
> +	debug("%s: volt=%d, ldo=%d, reg=0x%x, mask=0x%x, val=0x%x\n",
> +	      __func__, uvolt, ldo + 1, info->vsel_reg, mask, val);
>   
>   	return pmic_clrsetbits(dev->parent, info->vsel_reg, mask, val);
>   }
>   
> -static int ldo_set_enable(struct udevice *dev, bool enable)
> +static int ldo_set_suspend_value(struct udevice *dev, int uvolt)
>   {
>   	int ldo = dev->driver_data - 1;
> -	uint mask;
> +	const struct rk8xx_reg_info *info = get_ldo_reg(dev->parent, ldo, uvolt);
> +	int mask = info->vsel_mask;
> +	int val;
> +
> +	if (info->vsel_sleep_reg == NA)
> +		return -ENOSYS;
> +
> +	if (info->step_uv == 0)
> +		val = info->min_sel;
> +	else
> +		val = ((uvolt - info->min_uv) / info->step_uv) + info->min_sel;
>   
> -	mask = 1 << ldo;
> +	debug("%s: volt=%d, ldo=%d, reg=0x%x, mask=0x%x, val=0x%x\n",
> +	      __func__, uvolt, ldo + 1, info->vsel_sleep_reg, mask, val);
>   
> -	return pmic_clrsetbits(dev->parent, REG_LDO_EN, mask,
> -			       enable ? mask : 0);
> +	return pmic_clrsetbits(dev->parent, info->vsel_sleep_reg, mask, val);
>   }
>   
> -static int ldo_get_enable(struct udevice *dev)
> +static int ldo_get_suspend_value(struct udevice *dev)
>   {
>   	int ldo = dev->driver_data - 1;
> -	int ret;
> -	uint mask;
> +	const struct rk8xx_reg_info *info = get_ldo_reg(dev->parent, ldo, 0);
> +	int mask = info->vsel_mask;
> +	int val, ret;
>   
> -	mask = 1 << ldo;
> +	if (info->vsel_sleep_reg == NA)
> +		return -ENOSYS;
>   
> -	ret = pmic_reg_read(dev->parent, REG_LDO_EN);
> +	ret = pmic_reg_read(dev->parent, info->vsel_sleep_reg);
>   	if (ret < 0)
>   		return ret;
>   
> -	return ret & mask ? true : false;
> +	val = ret & mask;
> +
> +	return info->min_uv + val * info->step_uv;
> +}
> +
> +static int ldo_set_enable(struct udevice *dev, bool enable)
> +{
> +	int ldo = dev->driver_data - 1;
> +
> +	return _ldo_set_enable(dev->parent, ldo, enable);
> +}
> +
> +static int ldo_set_suspend_enable(struct udevice *dev, bool enable)
> +{
> +	int ldo = dev->driver_data - 1;
> +
> +	return _ldo_set_suspend_enable(dev->parent, ldo, enable);
> +}
> +
> +static int ldo_get_suspend_enable(struct udevice *dev)
> +{
> +	int ldo = dev->driver_data - 1;
> +
> +	return _ldo_get_suspend_enable(dev->parent, ldo);
> +}
> +
> +static int ldo_get_enable(struct udevice *dev)
> +{
> +	int ldo = dev->driver_data - 1;
> +
> +	return _ldo_get_enable(dev->parent, ldo);
>   }
>   
>   static int switch_set_enable(struct udevice *dev, bool enable)
>   {
> -	int sw = dev->driver_data - 1;
> -	uint mask;
> +	struct rk8xx_priv *priv = dev_get_priv(dev->parent);
> +	int ret = 0, sw = dev->driver_data - 1;
> +	uint mask = 0;
>   
> -	mask = 1 << (sw + 5);
> +	switch (priv->variant) {
> +	case RK808_ID:
> +		mask = 1 << (sw + 5);
> +		ret = pmic_clrsetbits(dev->parent, REG_DCDC_EN, mask,
> +				      enable ? mask : 0);
> +		break;
> +	case RK818_ID:
> +		mask = 1 << 6;
> +		ret = pmic_clrsetbits(dev->parent, REG_DCDC_EN, mask,
> +				      enable ? mask : 0);
> +		break;
> +	}
> +
> +	debug("%s: switch%d, enable=%d, mask=0x%x\n",
> +	      __func__, sw + 1, enable, mask);
>   
> -	return pmic_clrsetbits(dev->parent, REG_DCDC_EN, mask,
> -			       enable ? mask : 0);
> +	return ret;
>   }
>   
>   static int switch_get_enable(struct udevice *dev)
>   {
> -	int sw = dev->driver_data - 1;
> -	int ret;
> -	uint mask;
> +	struct rk8xx_priv *priv = dev_get_priv(dev->parent);
> +	int ret = 0, sw = dev->driver_data - 1;
> +	uint mask = 0;
>   
> -	mask = 1 << (sw + 5);
> +	switch (priv->variant) {
> +	case RK808_ID:
> +		mask = 1 << (sw + 5);
> +		ret = pmic_reg_read(dev->parent, REG_DCDC_EN);
> +		break;
> +	case RK818_ID:
> +		mask = 1 << 6;
> +		ret = pmic_reg_read(dev->parent, REG_DCDC_EN);
> +		break;
> +	}
>   
> -	ret = pmic_reg_read(dev->parent, REG_DCDC_EN);
>   	if (ret < 0)
>   		return ret;
>   
>   	return ret & mask ? true : false;
>   }
>   
> +static int switch_set_suspend_value(struct udevice *dev, int uvolt)
> +{
> +	return 0;
> +}
> +
> +static int switch_get_suspend_value(struct udevice *dev)
> +{
> +	return 0;
> +}
> +
> +static int switch_set_suspend_enable(struct udevice *dev, bool enable)
> +{
> +	struct rk8xx_priv *priv = dev_get_priv(dev->parent);
> +	int ret = 0, sw = dev->driver_data - 1;
> +	uint mask = 0;
> +
> +	switch (priv->variant) {
> +	case RK808_ID:
> +		mask = 1 << (sw + 5);
> +		ret = pmic_clrsetbits(dev->parent, REG_SLEEP_SET_OFF1, mask,
> +				      enable ? 0 : mask);
> +		break;
> +	case RK818_ID:
> +		mask = 1 << 6;
> +		ret = pmic_clrsetbits(dev->parent, REG_SLEEP_SET_OFF1, mask,
> +				      enable ? 0 : mask);
> +		break;
> +	}
> +
> +	debug("%s: switch%d, enable=%d, mask=0x%x\n",
> +	      __func__, sw + 1, enable, mask);
> +
> +	return ret;
> +}
> +
> +static int switch_get_suspend_enable(struct udevice *dev)
> +{
> +	struct rk8xx_priv *priv = dev_get_priv(dev->parent);
> +	int val, ret = 0, sw = dev->driver_data - 1;
> +	uint mask = 0;
> +
> +	switch (priv->variant) {
> +	case RK808_ID:
> +		mask = 1 << (sw + 5);
> +		val = pmic_reg_read(dev->parent, REG_SLEEP_SET_OFF1);
> +		if (val < 0)
> +			return val;
> +		ret = val & mask ? 0 : 1;
> +		break;
> +	case RK818_ID:
> +		mask = 1 << 6;
> +		val = pmic_reg_read(dev->parent, REG_SLEEP_SET_OFF1);
> +		if (val < 0)
> +			return val;
> +		ret = val & mask ? 0 : 1;
> +		break;
> +	}
> +
> +	return ret;
> +}
> +
> +/*
> + * RK8xx switch does not need to set the voltage,
> + * but if dts set regulator-min-microvolt/regulator-max-microvolt,
> + * will cause regulator set value fail and not to enable this switch.
> + * So add an empty function to return success.
> + */
> +static int switch_get_value(struct udevice *dev)
> +{
> +	return 0;
> +}
> +
> +static int switch_set_value(struct udevice *dev, int uvolt)
> +{
> +	return 0;
> +}
> +
>   static int rk8xx_buck_probe(struct udevice *dev)
>   {
>   	struct dm_regulator_uclass_platdata *uc_pdata;
> @@ -315,20 +805,34 @@ static int rk8xx_switch_probe(struct udevice *dev)
>   static const struct dm_regulator_ops rk8xx_buck_ops = {
>   	.get_value  = buck_get_value,
>   	.set_value  = buck_set_value,
> +	.set_suspend_value = buck_set_suspend_value,
> +	.get_suspend_value = buck_get_suspend_value,
>   	.get_enable = buck_get_enable,
>   	.set_enable = buck_set_enable,
> +	.set_suspend_enable = buck_set_suspend_enable,
> +	.get_suspend_enable = buck_get_suspend_enable,
>   };
>   
>   static const struct dm_regulator_ops rk8xx_ldo_ops = {
>   	.get_value  = ldo_get_value,
>   	.set_value  = ldo_set_value,
> +	.set_suspend_value = ldo_set_suspend_value,
> +	.get_suspend_value = ldo_get_suspend_value,
>   	.get_enable = ldo_get_enable,
>   	.set_enable = ldo_set_enable,
> +	.set_suspend_enable = ldo_set_suspend_enable,
> +	.get_suspend_enable = ldo_get_suspend_enable,
>   };
>   
>   static const struct dm_regulator_ops rk8xx_switch_ops = {
> +	.get_value  = switch_get_value,
> +	.set_value  = switch_set_value,
>   	.get_enable = switch_get_enable,
>   	.set_enable = switch_set_enable,
> +	.set_suspend_enable = switch_set_suspend_enable,
> +	.get_suspend_enable = switch_get_suspend_enable,
> +	.set_suspend_value = switch_set_suspend_value,
> +	.get_suspend_value = switch_get_suspend_value,
>   };
>   
>   U_BOOT_DRIVER(rk8xx_buck) = {
> diff --git a/include/power/rk8xx_pmic.h b/include/power/rk8xx_pmic.h
> index c06248f75183..44e8d687dfba 100644
> --- a/include/power/rk8xx_pmic.h
> +++ b/include/power/rk8xx_pmic.h
> @@ -170,8 +170,17 @@ enum {
>   };
>   
>   enum {
> -	RK805_ID = 0x8050,
> +	RK816_REG_DCDC_EN1 = 0x23,
> +	RK816_REG_DCDC_EN2,
> +	RK816_REG_DCDC_SLP_EN,
> +	RK816_REG_LDO_SLP_EN,
> +	RK816_REG_LDO_EN1 = 0x27,
> +	RK816_REG_LDO_EN2,
> +};
> +
> +enum {
>   	RK808_ID = 0x0000,
> +	RK816_ID = 0x8160,
>   	RK818_ID = 0x8180,
>   };
>   




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