Re: [PATCHv5 2/3] regulator: s2mps11: Add support S2MPU02 regulator device

From: Lee Jones
Date: Mon Jun 16 2014 - 09:19:32 EST

On Mon, 16 Jun 2014, Chanwoo Choi wrote:

> This patch add S2MPU02 regulator device to existing S2MPS11 device driver
> because of little difference between S2MPS1x and S2MPU02. The S2MPU02
> regulator device includes LDO[1-28] and BUCK[1-7].
>
> Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
> [Add missing linear_min_sel of S2MPU02 LDO regulators by Jonghwa Lee]
> Signed-off-by: Jonghwa Lee <jonghwa3.lee@xxxxxxxxxxx>
> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
> Acked-by: Mark Brown <broonie@xxxxxxxxxx>
> ---
> drivers/mfd/sec-core.c | 25 +++
> drivers/regulator/s2mps11.c | 321 +++++++++++++++++++++++++++++++++---
> include/linux/mfd/samsung/s2mpu02.h | 201 ++++++++++++++++++++++
> 3 files changed, 526 insertions(+), 21 deletions(-)
> create mode 100644 include/linux/mfd/samsung/s2mpu02.h

MFD changes look good to me.

Acked-by: Lee Jones <lee.jones@xxxxxxxxxx>

I assume we have to wait for the other patches to be ready before
applying this one?

> diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
> index 5e8784b..9eae5ab 100644
> --- a/drivers/mfd/sec-core.c
> +++ b/drivers/mfd/sec-core.c
> @@ -28,6 +28,7 @@
> #include <linux/mfd/samsung/s2mpa01.h>
> #include <linux/mfd/samsung/s2mps11.h>
> #include <linux/mfd/samsung/s2mps14.h>
> +#include <linux/mfd/samsung/s2mpu02.h>
> #include <linux/mfd/samsung/s5m8763.h>
> #include <linux/mfd/samsung/s5m8767.h>
> #include <linux/regmap.h>
> @@ -146,6 +147,18 @@ static bool s2mps11_volatile(struct device *dev, unsigned int reg)
> }
> }
>
> +static bool s2mpu02_volatile(struct device *dev, unsigned int reg)
> +{
> + switch (reg) {
> + case S2MPU02_REG_INT1M:
> + case S2MPU02_REG_INT2M:
> + case S2MPU02_REG_INT3M:
> + return false;
> + default:
> + return true;
> + }
> +}
> +
> static bool s5m8763_volatile(struct device *dev, unsigned int reg)
> {
> switch (reg) {
> @@ -191,6 +204,15 @@ static const struct regmap_config s2mps14_regmap_config = {
> .cache_type = REGCACHE_FLAT,
> };
>
> +static const struct regmap_config s2mpu02_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = S2MPU02_REG_DVSDATA,
> + .volatile_reg = s2mpu02_volatile,
> + .cache_type = REGCACHE_FLAT,
> +};
> +
> static const struct regmap_config s5m8763_regmap_config = {
> .reg_bits = 8,
> .val_bits = 8,
> @@ -311,6 +333,9 @@ static int sec_pmic_probe(struct i2c_client *i2c,
> case S5M8767X:
> regmap = &s5m8767_regmap_config;
> break;
> + case S2MPU02:
> + regmap = &s2mpu02_regmap_config;
> + break;
> default:
> regmap = &sec_regmap_config;
> break;
> diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
> index 02e2fb2..2daacc6 100644
> --- a/drivers/regulator/s2mps11.c
> +++ b/drivers/regulator/s2mps11.c
> @@ -31,6 +31,7 @@
> #include <linux/mfd/samsung/core.h>
> #include <linux/mfd/samsung/s2mps11.h>
> #include <linux/mfd/samsung/s2mps14.h>
> +#include <linux/mfd/samsung/s2mpu02.h>
>
> struct s2mps11_info {
> unsigned int rdev_num;
> @@ -40,11 +41,15 @@ struct s2mps11_info {
> int ramp_delay16;
> int ramp_delay7810;
> int ramp_delay9;
> +
> + enum sec_device_type dev_type;
> +
> /*
> - * One bit for each S2MPS14 regulator whether the suspend mode
> + * One bit for each S2MPS14/S2MPU02 regulator whether the suspend mode
> * was enabled.
> */
> - unsigned int s2mps14_suspend_state:30;
> + unsigned long long s2mps14_suspend_state:35;
> +
> /* Array of size rdev_num with GPIO-s for external sleep control */
> int *ext_control_gpio;
> };
> @@ -415,12 +420,24 @@ static int s2mps14_regulator_enable(struct regulator_dev *rdev)
> struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
> unsigned int val;
>
> - if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev)))
> - val = S2MPS14_ENABLE_SUSPEND;
> - else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)]))
> - val = S2MPS14_ENABLE_EXT_CONTROL;
> - else
> - val = rdev->desc->enable_mask;
> + switch (s2mps11->dev_type) {
> + case S2MPS14X:
> + if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev)))
> + val = S2MPS14_ENABLE_SUSPEND;
> + else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)]))
> + val = S2MPS14_ENABLE_EXT_CONTROL;
> + else
> + val = rdev->desc->enable_mask;
> + break;
> + case S2MPU02:
> + if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev)))
> + val = S2MPU02_ENABLE_SUSPEND;
> + else
> + val = rdev->desc->enable_mask;
> + break;
> + default:
> + return -EINVAL;
> + };
>
> return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
> rdev->desc->enable_mask, val);
> @@ -429,12 +446,38 @@ static int s2mps14_regulator_enable(struct regulator_dev *rdev)
> static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev)
> {
> int ret;
> - unsigned int val;
> + unsigned int val, state;
> struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
> + int rdev_id = rdev_get_id(rdev);
>
> - /* LDO3 should be always on and does not support suspend mode */
> - if (rdev_get_id(rdev) == S2MPS14_LDO3)
> - return 0;
> + /* Below LDO should be always on or does not support suspend mode. */
> + switch (s2mps11->dev_type) {
> + case S2MPS14X:
> + switch (rdev_id) {
> + case S2MPS14_LDO3:
> + return 0;
> + default:
> + state = S2MPS14_ENABLE_SUSPEND;
> + break;
> + };
> + break;
> + case S2MPU02:
> + switch (rdev_id) {
> + case S2MPU02_LDO13:
> + case S2MPU02_LDO14:
> + case S2MPU02_LDO15:
> + case S2MPU02_LDO17:
> + case S2MPU02_BUCK7:
> + state = S2MPU02_DISABLE_SUSPEND;
> + break;
> + default:
> + state = S2MPU02_ENABLE_SUSPEND;
> + break;
> + };
> + break;
> + default:
> + return -EINVAL;
> + };
>
> ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
> if (ret < 0)
> @@ -452,7 +495,7 @@ static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev)
> return 0;
>
> return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
> - rdev->desc->enable_mask, S2MPS14_ENABLE_SUSPEND);
> + rdev->desc->enable_mask, state);
> }
>
> static struct regulator_ops s2mps14_reg_ops = {
> @@ -605,8 +648,7 @@ static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev,
> }
>
> static int s2mps11_pmic_dt_parse(struct platform_device *pdev,
> - struct of_regulator_match *rdata, struct s2mps11_info *s2mps11,
> - enum sec_device_type dev_type)
> + struct of_regulator_match *rdata, struct s2mps11_info *s2mps11)
> {
> struct device_node *reg_np;
>
> @@ -617,7 +659,7 @@ static int s2mps11_pmic_dt_parse(struct platform_device *pdev,
> }
>
> of_regulator_match(&pdev->dev, reg_np, rdata, s2mps11->rdev_num);
> - if (dev_type == S2MPS14X)
> + if (s2mps11->dev_type == S2MPS14X)
> s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11);
>
> of_node_put(reg_np);
> @@ -625,6 +667,238 @@ static int s2mps11_pmic_dt_parse(struct platform_device *pdev,
> return 0;
> }
>
> +static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
> +{
> + unsigned int ramp_val, ramp_shift, ramp_reg;
> +
> + switch (rdev_get_id(rdev)) {
> + case S2MPU02_BUCK1:
> + ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT;
> + break;
> + case S2MPU02_BUCK2:
> + ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT;
> + break;
> + case S2MPU02_BUCK3:
> + ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT;
> + break;
> + case S2MPU02_BUCK4:
> + ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT;
> + break;
> + default:
> + return 0;
> + }
> + ramp_reg = S2MPU02_REG_RAMP1;
> + ramp_val = get_ramp_delay(ramp_delay);
> +
> + return regmap_update_bits(rdev->regmap, ramp_reg,
> + S2MPU02_BUCK1234_RAMP_MASK << ramp_shift,
> + ramp_val << ramp_shift);
> +}
> +
> +static struct regulator_ops s2mpu02_ldo_ops = {
> + .list_voltage = regulator_list_voltage_linear,
> + .map_voltage = regulator_map_voltage_linear,
> + .is_enabled = regulator_is_enabled_regmap,
> + .enable = s2mps14_regulator_enable,
> + .disable = regulator_disable_regmap,
> + .get_voltage_sel = regulator_get_voltage_sel_regmap,
> + .set_voltage_sel = regulator_set_voltage_sel_regmap,
> + .set_voltage_time_sel = regulator_set_voltage_time_sel,
> + .set_suspend_disable = s2mps14_regulator_set_suspend_disable,
> +};
> +
> +static struct regulator_ops s2mpu02_buck_ops = {
> + .list_voltage = regulator_list_voltage_linear,
> + .map_voltage = regulator_map_voltage_linear,
> + .is_enabled = regulator_is_enabled_regmap,
> + .enable = s2mps14_regulator_enable,
> + .disable = regulator_disable_regmap,
> + .get_voltage_sel = regulator_get_voltage_sel_regmap,
> + .set_voltage_sel = regulator_set_voltage_sel_regmap,
> + .set_voltage_time_sel = regulator_set_voltage_time_sel,
> + .set_suspend_disable = s2mps14_regulator_set_suspend_disable,
> + .set_ramp_delay = s2mpu02_set_ramp_delay,
> +};
> +
> +#define regulator_desc_s2mpu02_ldo1(num) { \
> + .name = "LDO"#num, \
> + .id = S2MPU02_LDO##num, \
> + .ops = &s2mpu02_ldo_ops, \
> + .type = REGULATOR_VOLTAGE, \
> + .owner = THIS_MODULE, \
> + .min_uV = S2MPU02_LDO_MIN_900MV, \
> + .uV_step = S2MPU02_LDO_STEP_12_5MV, \
> + .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
> + .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
> + .vsel_reg = S2MPU02_REG_L1CTRL, \
> + .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
> + .enable_reg = S2MPU02_REG_L1CTRL, \
> + .enable_mask = S2MPU02_ENABLE_MASK \
> +}
> +#define regulator_desc_s2mpu02_ldo2(num) { \
> + .name = "LDO"#num, \
> + .id = S2MPU02_LDO##num, \
> + .ops = &s2mpu02_ldo_ops, \
> + .type = REGULATOR_VOLTAGE, \
> + .owner = THIS_MODULE, \
> + .min_uV = S2MPU02_LDO_MIN_1050MV, \
> + .uV_step = S2MPU02_LDO_STEP_25MV, \
> + .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
> + .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
> + .vsel_reg = S2MPU02_REG_L2CTRL1, \
> + .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
> + .enable_reg = S2MPU02_REG_L2CTRL1, \
> + .enable_mask = S2MPU02_ENABLE_MASK \
> +}
> +#define regulator_desc_s2mpu02_ldo3(num) { \
> + .name = "LDO"#num, \
> + .id = S2MPU02_LDO##num, \
> + .ops = &s2mpu02_ldo_ops, \
> + .type = REGULATOR_VOLTAGE, \
> + .owner = THIS_MODULE, \
> + .min_uV = S2MPU02_LDO_MIN_900MV, \
> + .uV_step = S2MPU02_LDO_STEP_12_5MV, \
> + .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
> + .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
> + .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
> + .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
> + .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
> + .enable_mask = S2MPU02_ENABLE_MASK \
> +}
> +#define regulator_desc_s2mpu02_ldo4(num) { \
> + .name = "LDO"#num, \
> + .id = S2MPU02_LDO##num, \
> + .ops = &s2mpu02_ldo_ops, \
> + .type = REGULATOR_VOLTAGE, \
> + .owner = THIS_MODULE, \
> + .min_uV = S2MPU02_LDO_MIN_1050MV, \
> + .uV_step = S2MPU02_LDO_STEP_25MV, \
> + .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
> + .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
> + .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
> + .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
> + .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
> + .enable_mask = S2MPU02_ENABLE_MASK \
> +}
> +#define regulator_desc_s2mpu02_ldo5(num) { \
> + .name = "LDO"#num, \
> + .id = S2MPU02_LDO##num, \
> + .ops = &s2mpu02_ldo_ops, \
> + .type = REGULATOR_VOLTAGE, \
> + .owner = THIS_MODULE, \
> + .min_uV = S2MPU02_LDO_MIN_1600MV, \
> + .uV_step = S2MPU02_LDO_STEP_50MV, \
> + .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \
> + .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
> + .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
> + .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
> + .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
> + .enable_mask = S2MPU02_ENABLE_MASK \
> +}
> +
> +#define regulator_desc_s2mpu02_buck1234(num) { \
> + .name = "BUCK"#num, \
> + .id = S2MPU02_BUCK##num, \
> + .ops = &s2mpu02_buck_ops, \
> + .type = REGULATOR_VOLTAGE, \
> + .owner = THIS_MODULE, \
> + .min_uV = S2MPU02_BUCK1234_MIN_600MV, \
> + .uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \
> + .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
> + .linear_min_sel = S2MPU02_BUCK1234_START_SEL, \
> + .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
> + .vsel_reg = S2MPU02_REG_B1CTRL2 + (num - 1) * 2, \
> + .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
> + .enable_reg = S2MPU02_REG_B1CTRL1 + (num - 1) * 2, \
> + .enable_mask = S2MPU02_ENABLE_MASK \
> +}
> +#define regulator_desc_s2mpu02_buck5(num) { \
> + .name = "BUCK"#num, \
> + .id = S2MPU02_BUCK##num, \
> + .ops = &s2mpu02_ldo_ops, \
> + .type = REGULATOR_VOLTAGE, \
> + .owner = THIS_MODULE, \
> + .min_uV = S2MPU02_BUCK5_MIN_1081_25MV, \
> + .uV_step = S2MPU02_BUCK5_STEP_6_25MV, \
> + .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
> + .linear_min_sel = S2MPU02_BUCK5_START_SEL, \
> + .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
> + .vsel_reg = S2MPU02_REG_B5CTRL2, \
> + .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
> + .enable_reg = S2MPU02_REG_B5CTRL1, \
> + .enable_mask = S2MPU02_ENABLE_MASK \
> +}
> +#define regulator_desc_s2mpu02_buck6(num) { \
> + .name = "BUCK"#num, \
> + .id = S2MPU02_BUCK##num, \
> + .ops = &s2mpu02_ldo_ops, \
> + .type = REGULATOR_VOLTAGE, \
> + .owner = THIS_MODULE, \
> + .min_uV = S2MPU02_BUCK6_MIN_1700MV, \
> + .uV_step = S2MPU02_BUCK6_STEP_2_50MV, \
> + .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
> + .linear_min_sel = S2MPU02_BUCK6_START_SEL, \
> + .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
> + .vsel_reg = S2MPU02_REG_B6CTRL2, \
> + .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
> + .enable_reg = S2MPU02_REG_B6CTRL1, \
> + .enable_mask = S2MPU02_ENABLE_MASK \
> +}
> +#define regulator_desc_s2mpu02_buck7(num) { \
> + .name = "BUCK"#num, \
> + .id = S2MPU02_BUCK##num, \
> + .ops = &s2mpu02_ldo_ops, \
> + .type = REGULATOR_VOLTAGE, \
> + .owner = THIS_MODULE, \
> + .min_uV = S2MPU02_BUCK7_MIN_900MV, \
> + .uV_step = S2MPU02_BUCK7_STEP_6_25MV, \
> + .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
> + .linear_min_sel = S2MPU02_BUCK7_START_SEL, \
> + .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
> + .vsel_reg = S2MPU02_REG_B7CTRL2, \
> + .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
> + .enable_reg = S2MPU02_REG_B7CTRL1, \
> + .enable_mask = S2MPU02_ENABLE_MASK \
> +}
> +
> +static const struct regulator_desc s2mpu02_regulators[] = {
> + regulator_desc_s2mpu02_ldo1(1),
> + regulator_desc_s2mpu02_ldo2(2),
> + regulator_desc_s2mpu02_ldo4(3),
> + regulator_desc_s2mpu02_ldo5(4),
> + regulator_desc_s2mpu02_ldo4(5),
> + regulator_desc_s2mpu02_ldo3(6),
> + regulator_desc_s2mpu02_ldo3(7),
> + regulator_desc_s2mpu02_ldo4(8),
> + regulator_desc_s2mpu02_ldo5(9),
> + regulator_desc_s2mpu02_ldo3(10),
> + regulator_desc_s2mpu02_ldo4(11),
> + regulator_desc_s2mpu02_ldo5(12),
> + regulator_desc_s2mpu02_ldo5(13),
> + regulator_desc_s2mpu02_ldo5(14),
> + regulator_desc_s2mpu02_ldo5(15),
> + regulator_desc_s2mpu02_ldo5(16),
> + regulator_desc_s2mpu02_ldo4(17),
> + regulator_desc_s2mpu02_ldo5(18),
> + regulator_desc_s2mpu02_ldo3(19),
> + regulator_desc_s2mpu02_ldo4(20),
> + regulator_desc_s2mpu02_ldo5(21),
> + regulator_desc_s2mpu02_ldo5(22),
> + regulator_desc_s2mpu02_ldo5(23),
> + regulator_desc_s2mpu02_ldo4(24),
> + regulator_desc_s2mpu02_ldo5(25),
> + regulator_desc_s2mpu02_ldo4(26),
> + regulator_desc_s2mpu02_ldo5(27),
> + regulator_desc_s2mpu02_ldo5(28),
> + regulator_desc_s2mpu02_buck1234(1),
> + regulator_desc_s2mpu02_buck1234(2),
> + regulator_desc_s2mpu02_buck1234(3),
> + regulator_desc_s2mpu02_buck1234(4),
> + regulator_desc_s2mpu02_buck5(5),
> + regulator_desc_s2mpu02_buck6(6),
> + regulator_desc_s2mpu02_buck7(7),
> +};
> +
> static int s2mps11_pmic_probe(struct platform_device *pdev)
> {
> struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
> @@ -634,15 +908,14 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
> struct s2mps11_info *s2mps11;
> int i, ret = 0;
> const struct regulator_desc *regulators;
> - enum sec_device_type dev_type;
>
> s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info),
> GFP_KERNEL);
> if (!s2mps11)
> return -ENOMEM;
>
> - dev_type = platform_get_device_id(pdev)->driver_data;
> - switch (dev_type) {
> + s2mps11->dev_type = platform_get_device_id(pdev)->driver_data;
> + switch (s2mps11->dev_type) {
> case S2MPS11X:
> s2mps11->rdev_num = ARRAY_SIZE(s2mps11_regulators);
> regulators = s2mps11_regulators;
> @@ -651,8 +924,13 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
> s2mps11->rdev_num = ARRAY_SIZE(s2mps14_regulators);
> regulators = s2mps14_regulators;
> break;
> + case S2MPU02:
> + s2mps11->rdev_num = ARRAY_SIZE(s2mpu02_regulators);
> + regulators = s2mpu02_regulators;
> + break;
> default:
> - dev_err(&pdev->dev, "Invalid device type: %u\n", dev_type);
> + dev_err(&pdev->dev, "Invalid device type: %u\n",
> + s2mps11->dev_type);
> return -EINVAL;
> };
>
> @@ -686,7 +964,7 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
> for (i = 0; i < s2mps11->rdev_num; i++)
> rdata[i].name = regulators[i].name;
>
> - ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11, dev_type);
> + ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11);
> if (ret)
> goto out;
>
> @@ -739,6 +1017,7 @@ out:
> static const struct platform_device_id s2mps11_pmic_id[] = {
> { "s2mps11-pmic", S2MPS11X},
> { "s2mps14-pmic", S2MPS14X},
> + { "s2mpu02-pmic", S2MPU02},
> { },
> };
> MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id);
> diff --git a/include/linux/mfd/samsung/s2mpu02.h b/include/linux/mfd/samsung/s2mpu02.h
> new file mode 100644
> index 0000000..47ae9bc
> --- /dev/null
> +++ b/include/linux/mfd/samsung/s2mpu02.h
> @@ -0,0 +1,201 @@
> +/*
> + * s2mpu02.h
> + *
> + * Copyright (c) 2014 Samsung Electronics Co., Ltd
> + * http://www.samsung.com
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + */
> +
> +#ifndef __LINUX_MFD_S2MPU02_H
> +#define __LINUX_MFD_S2MPU02_H
> +
> +/* S2MPU02 registers */
> +enum S2MPU02_reg {
> + S2MPU02_REG_ID,
> + S2MPU02_REG_INT1,
> + S2MPU02_REG_INT2,
> + S2MPU02_REG_INT3,
> + S2MPU02_REG_INT1M,
> + S2MPU02_REG_INT2M,
> + S2MPU02_REG_INT3M,
> + S2MPU02_REG_ST1,
> + S2MPU02_REG_ST2,
> + S2MPU02_REG_PWRONSRC,
> + S2MPU02_REG_OFFSRC,
> + S2MPU02_REG_BU_CHG,
> + S2MPU02_REG_RTCCTRL,
> + S2MPU02_REG_PMCTRL1,
> + S2MPU02_REG_RSVD1,
> + S2MPU02_REG_RSVD2,
> + S2MPU02_REG_RSVD3,
> + S2MPU02_REG_RSVD4,
> + S2MPU02_REG_RSVD5,
> + S2MPU02_REG_RSVD6,
> + S2MPU02_REG_RSVD7,
> + S2MPU02_REG_WRSTEN,
> + S2MPU02_REG_RSVD8,
> + S2MPU02_REG_RSVD9,
> + S2MPU02_REG_RSVD10,
> + S2MPU02_REG_B1CTRL1,
> + S2MPU02_REG_B1CTRL2,
> + S2MPU02_REG_B2CTRL1,
> + S2MPU02_REG_B2CTRL2,
> + S2MPU02_REG_B3CTRL1,
> + S2MPU02_REG_B3CTRL2,
> + S2MPU02_REG_B4CTRL1,
> + S2MPU02_REG_B4CTRL2,
> + S2MPU02_REG_B5CTRL1,
> + S2MPU02_REG_B5CTRL2,
> + S2MPU02_REG_B5CTRL3,
> + S2MPU02_REG_B5CTRL4,
> + S2MPU02_REG_B5CTRL5,
> + S2MPU02_REG_B6CTRL1,
> + S2MPU02_REG_B6CTRL2,
> + S2MPU02_REG_B7CTRL1,
> + S2MPU02_REG_B7CTRL2,
> + S2MPU02_REG_RAMP1,
> + S2MPU02_REG_RAMP2,
> + S2MPU02_REG_L1CTRL,
> + S2MPU02_REG_L2CTRL1,
> + S2MPU02_REG_L2CTRL2,
> + S2MPU02_REG_L2CTRL3,
> + S2MPU02_REG_L2CTRL4,
> + S2MPU02_REG_L3CTRL,
> + S2MPU02_REG_L4CTRL,
> + S2MPU02_REG_L5CTRL,
> + S2MPU02_REG_L6CTRL,
> + S2MPU02_REG_L7CTRL,
> + S2MPU02_REG_L8CTRL,
> + S2MPU02_REG_L9CTRL,
> + S2MPU02_REG_L10CTRL,
> + S2MPU02_REG_L11CTRL,
> + S2MPU02_REG_L12CTRL,
> + S2MPU02_REG_L13CTRL,
> + S2MPU02_REG_L14CTRL,
> + S2MPU02_REG_L15CTRL,
> + S2MPU02_REG_L16CTRL,
> + S2MPU02_REG_L17CTRL,
> + S2MPU02_REG_L18CTRL,
> + S2MPU02_REG_L19CTRL,
> + S2MPU02_REG_L20CTRL,
> + S2MPU02_REG_L21CTRL,
> + S2MPU02_REG_L22CTRL,
> + S2MPU02_REG_L23CTRL,
> + S2MPU02_REG_L24CTRL,
> + S2MPU02_REG_L25CTRL,
> + S2MPU02_REG_L26CTRL,
> + S2MPU02_REG_L27CTRL,
> + S2MPU02_REG_L28CTRL,
> + S2MPU02_REG_LDODSCH1,
> + S2MPU02_REG_LDODSCH2,
> + S2MPU02_REG_LDODSCH3,
> + S2MPU02_REG_LDODSCH4,
> + S2MPU02_REG_SELMIF,
> + S2MPU02_REG_RSVD11,
> + S2MPU02_REG_RSVD12,
> + S2MPU02_REG_RSVD13,
> + S2MPU02_REG_DVSSEL,
> + S2MPU02_REG_DVSPTR,
> + S2MPU02_REG_DVSDATA,
> +};
> +
> +/* S2MPU02 regulator ids */
> +enum S2MPU02_regulators {
> + S2MPU02_LDO1,
> + S2MPU02_LDO2,
> + S2MPU02_LDO3,
> + S2MPU02_LDO4,
> + S2MPU02_LDO5,
> + S2MPU02_LDO6,
> + S2MPU02_LDO7,
> + S2MPU02_LDO8,
> + S2MPU02_LDO9,
> + S2MPU02_LDO10,
> + S2MPU02_LDO11,
> + S2MPU02_LDO12,
> + S2MPU02_LDO13,
> + S2MPU02_LDO14,
> + S2MPU02_LDO15,
> + S2MPU02_LDO16,
> + S2MPU02_LDO17,
> + S2MPU02_LDO18,
> + S2MPU02_LDO19,
> + S2MPU02_LDO20,
> + S2MPU02_LDO21,
> + S2MPU02_LDO22,
> + S2MPU02_LDO23,
> + S2MPU02_LDO24,
> + S2MPU02_LDO25,
> + S2MPU02_LDO26,
> + S2MPU02_LDO27,
> + S2MPU02_LDO28,
> + S2MPU02_BUCK1,
> + S2MPU02_BUCK2,
> + S2MPU02_BUCK3,
> + S2MPU02_BUCK4,
> + S2MPU02_BUCK5,
> + S2MPU02_BUCK6,
> + S2MPU02_BUCK7,
> +
> + S2MPU02_REGULATOR_MAX,
> +};
> +
> +/* Regulator constraints for BUCKx */
> +#define S2MPU02_BUCK1234_MIN_600MV 600000
> +#define S2MPU02_BUCK5_MIN_1081_25MV 1081250
> +#define S2MPU02_BUCK6_MIN_1700MV 1700000
> +#define S2MPU02_BUCK7_MIN_900MV 900000
> +
> +#define S2MPU02_BUCK1234_STEP_6_25MV 6250
> +#define S2MPU02_BUCK5_STEP_6_25MV 6250
> +#define S2MPU02_BUCK6_STEP_2_50MV 2500
> +#define S2MPU02_BUCK7_STEP_6_25MV 6250
> +
> +#define S2MPU02_BUCK1234_START_SEL 0x00
> +#define S2MPU02_BUCK5_START_SEL 0x4D
> +#define S2MPU02_BUCK6_START_SEL 0x28
> +#define S2MPU02_BUCK7_START_SEL 0x30
> +
> +#define S2MPU02_BUCK_RAMP_DELAY 12500
> +
> +/* Regulator constraints for different types of LDOx */
> +#define S2MPU02_LDO_MIN_900MV 900000
> +#define S2MPU02_LDO_MIN_1050MV 1050000
> +#define S2MPU02_LDO_MIN_1600MV 1600000
> +#define S2MPU02_LDO_STEP_12_5MV 12500
> +#define S2MPU02_LDO_STEP_25MV 25000
> +#define S2MPU02_LDO_STEP_50MV 50000
> +
> +#define S2MPU02_LDO_GROUP1_START_SEL 0x8
> +#define S2MPU02_LDO_GROUP2_START_SEL 0xA
> +#define S2MPU02_LDO_GROUP3_START_SEL 0x10
> +
> +#define S2MPU02_LDO_VSEL_MASK 0x3F
> +#define S2MPU02_BUCK_VSEL_MASK 0xFF
> +#define S2MPU02_ENABLE_MASK (0x03 << S2MPU02_ENABLE_SHIFT)
> +#define S2MPU02_ENABLE_SHIFT 6
> +
> +/* On/Off controlled by PWREN */
> +#define S2MPU02_ENABLE_SUSPEND (0x01 << S2MPU02_ENABLE_SHIFT)
> +#define S2MPU02_DISABLE_SUSPEND (0x11 << S2MPU02_ENABLE_SHIFT)
> +#define S2MPU02_LDO_N_VOLTAGES (S2MPU02_LDO_VSEL_MASK + 1)
> +#define S2MPU02_BUCK_N_VOLTAGES (S2MPU02_BUCK_VSEL_MASK + 1)
> +
> +/* RAMP delay for BUCK1234*/
> +#define S2MPU02_BUCK1_RAMP_SHIFT 6
> +#define S2MPU02_BUCK2_RAMP_SHIFT 4
> +#define S2MPU02_BUCK3_RAMP_SHIFT 2
> +#define S2MPU02_BUCK4_RAMP_SHIFT 0
> +#define S2MPU02_BUCK1234_RAMP_MASK 0x3
> +
> +#endif /* __LINUX_MFD_S2MPU02_H */

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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