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Date: Tue, 25 Nov 2014 15:51:07 +0000
From: Lee Jones <lee.jones@...aro.org>
To: Chanwoo Choi <cw00.choi@...sung.com>
Cc: broonie@...nel.org, mturquette@...aro.org, a.zummo@...ertech.it,
lgirdwood@...il.com, sbkim73@...sung.com, sameo@...ux.intel.com,
geunsik.lim@...sung.com, inki.dae@...sung.com,
kyungmin.park@...sung.com, k.kozlowski@...sung.com,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCHv2 2/5] regulator: s2mps11: Add support S2MPS13 regulator
device
On Tue, 18 Nov 2014, Chanwoo Choi wrote:
> This patch adds S2MPS13 regulator device to existing S2MPS11 device driver.
> The S2MPS13 has just different number of regulators from S2MPS14.
> The S2MPS13 regulator device includes LDO[1-40] and BUCK[1-10].
>
> Cc: Mark Brown <broonie@...nel.org>
> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
> Acked-by: Sangbeom Kim <sbkim73@...sung.com>
> Acked-by: Mark Brown <broonie@...nel.org>
> Acked-by: Lee Jones <lee.jones@...aro.org>
> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> ---
> drivers/mfd/sec-core.c | 13 +++
> drivers/regulator/Kconfig | 10 +-
> drivers/regulator/s2mps11.c | 102 +++++++++++++++++++-
> include/linux/mfd/samsung/core.h | 1 +
> include/linux/mfd/samsung/s2mps13.h | 186 ++++++++++++++++++++++++++++++++++++
> 5 files changed, 304 insertions(+), 8 deletions(-)
> create mode 100644 include/linux/mfd/samsung/s2mps13.h
Applied, thanks.
> diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
> index 868f03d..0a7bc43 100644
> --- a/drivers/mfd/sec-core.c
> +++ b/drivers/mfd/sec-core.c
> @@ -27,6 +27,7 @@
> #include <linux/mfd/samsung/irq.h>
> #include <linux/mfd/samsung/s2mpa01.h>
> #include <linux/mfd/samsung/s2mps11.h>
> +#include <linux/mfd/samsung/s2mps13.h>
> #include <linux/mfd/samsung/s2mps14.h>
> #include <linux/mfd/samsung/s2mpu02.h>
> #include <linux/mfd/samsung/s5m8763.h>
> @@ -205,6 +206,15 @@ static const struct regmap_config s2mps11_regmap_config = {
> .cache_type = REGCACHE_FLAT,
> };
>
> +static const struct regmap_config s2mps13_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = S2MPS13_REG_LDODSCH5,
> + .volatile_reg = s2mps11_volatile,
> + .cache_type = REGCACHE_FLAT,
> +};
> +
> static const struct regmap_config s2mps14_regmap_config = {
> .reg_bits = 8,
> .val_bits = 8,
> @@ -336,6 +346,9 @@ static int sec_pmic_probe(struct i2c_client *i2c,
> case S2MPS11X:
> regmap = &s2mps11_regmap_config;
> break;
> + case S2MPS13X:
> + regmap = &s2mps13_regmap_config;
> + break;
> case S2MPS14X:
> regmap = &s2mps14_regmap_config;
> break;
> diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
> index 55d7b7b..5e06134 100644
> --- a/drivers/regulator/Kconfig
> +++ b/drivers/regulator/Kconfig
> @@ -529,13 +529,13 @@ config REGULATOR_S2MPA01
> via I2C bus. S2MPA01 has 10 Bucks and 26 LDO outputs.
>
> config REGULATOR_S2MPS11
> - tristate "Samsung S2MPS11/S2MPS14/S2MPU02 voltage regulator"
> + tristate "Samsung S2MPS11/S2MPS13/S2MPS14/S2MPU02 voltage regulator"
> depends on MFD_SEC_CORE
> help
> - This driver supports a Samsung S2MPS11/S2MPS14/S2MPU02 voltage output
> - regulator via I2C bus. The chip is comprised of high efficient Buck
> - converters including Dual-Phase Buck converter, Buck-Boost converter,
> - various LDOs.
> + This driver supports a Samsung S2MPS11/S2MPS13/S2MPS14/S2MPU02 voltage
> + output regulator via I2C bus. The chip is comprised of high efficient
> + Buck converters including Dual-Phase Buck converter, Buck-Boost
> + converter, various LDOs.
>
> config REGULATOR_S5M8767
> tristate "Samsung S5M8767A voltage regulator"
> diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
> index adab82d..738dc77 100644
> --- a/drivers/regulator/s2mps11.c
> +++ b/drivers/regulator/s2mps11.c
> @@ -30,6 +30,7 @@
> #include <linux/of_gpio.h>
> #include <linux/mfd/samsung/core.h>
> #include <linux/mfd/samsung/s2mps11.h>
> +#include <linux/mfd/samsung/s2mps13.h>
> #include <linux/mfd/samsung/s2mps14.h>
> #include <linux/mfd/samsung/s2mpu02.h>
>
> @@ -45,10 +46,10 @@ struct s2mps11_info {
> enum sec_device_type dev_type;
>
> /*
> - * One bit for each S2MPS14/S2MPU02 regulator whether the suspend mode
> - * was enabled.
> + * One bit for each S2MPS13/S2MPS14/S2MPU02 regulator whether
> + * the suspend mode was enabled.
> */
> - unsigned long long s2mps14_suspend_state:35;
> + unsigned long long s2mps14_suspend_state:50;
>
> /* Array of size rdev_num with GPIO-s for external sleep control */
> int *ext_control_gpio;
> @@ -369,12 +370,101 @@ static const struct regulator_desc s2mps11_regulators[] = {
> regulator_desc_s2mps11_buck6_10(10, MIN_750_MV, STEP_12_5_MV),
> };
>
> +static struct regulator_ops s2mps14_reg_ops;
> +
> +#define regulator_desc_s2mps13_ldo(num, min, step, min_sel) { \
> + .name = "LDO"#num, \
> + .id = S2MPS13_LDO##num, \
> + .ops = &s2mps14_reg_ops, \
> + .type = REGULATOR_VOLTAGE, \
> + .owner = THIS_MODULE, \
> + .min_uV = min, \
> + .uV_step = step, \
> + .linear_min_sel = min_sel, \
> + .n_voltages = S2MPS14_LDO_N_VOLTAGES, \
> + .vsel_reg = S2MPS13_REG_L1CTRL + num - 1, \
> + .vsel_mask = S2MPS14_LDO_VSEL_MASK, \
> + .enable_reg = S2MPS13_REG_L1CTRL + num - 1, \
> + .enable_mask = S2MPS14_ENABLE_MASK \
> +}
> +
> +#define regulator_desc_s2mps13_buck(num, min, step, min_sel) { \
> + .name = "BUCK"#num, \
> + .id = S2MPS13_BUCK##num, \
> + .ops = &s2mps14_reg_ops, \
> + .type = REGULATOR_VOLTAGE, \
> + .owner = THIS_MODULE, \
> + .min_uV = min, \
> + .uV_step = step, \
> + .linear_min_sel = min_sel, \
> + .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
> + .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \
> + .vsel_reg = S2MPS13_REG_B1OUT + (num - 1) * 2, \
> + .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
> + .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \
> + .enable_mask = S2MPS14_ENABLE_MASK \
> +}
> +
> +static const struct regulator_desc s2mps13_regulators[] = {
> + regulator_desc_s2mps13_ldo(1, MIN_800_MV, STEP_12_5_MV, 0x00),
> + regulator_desc_s2mps13_ldo(2, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_ldo(3, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(4, MIN_800_MV, STEP_12_5_MV, 0x00),
> + regulator_desc_s2mps13_ldo(5, MIN_800_MV, STEP_12_5_MV, 0x00),
> + regulator_desc_s2mps13_ldo(6, MIN_800_MV, STEP_12_5_MV, 0x00),
> + regulator_desc_s2mps13_ldo(7, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(8, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(9, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_ldo(11, MIN_800_MV, STEP_25_MV, 0x10),
> + regulator_desc_s2mps13_ldo(12, MIN_800_MV, STEP_25_MV, 0x10),
> + regulator_desc_s2mps13_ldo(13, MIN_800_MV, STEP_25_MV, 0x10),
> + regulator_desc_s2mps13_ldo(14, MIN_800_MV, STEP_12_5_MV, 0x00),
> + regulator_desc_s2mps13_ldo(15, MIN_800_MV, STEP_12_5_MV, 0x00),
> + regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(23, MIN_800_MV, STEP_12_5_MV, 0x00),
> + regulator_desc_s2mps13_ldo(24, MIN_800_MV, STEP_12_5_MV, 0x00),
> + regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_ldo(36, MIN_800_MV, STEP_12_5_MV, 0x00),
> + regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV, 0x08),
> + regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV, 0x0C),
> + regulator_desc_s2mps13_buck(1, MIN_500_MV, STEP_6_25_MV, 0x10),
> + regulator_desc_s2mps13_buck(2, MIN_500_MV, STEP_6_25_MV, 0x10),
> + regulator_desc_s2mps13_buck(3, MIN_500_MV, STEP_6_25_MV, 0x10),
> + regulator_desc_s2mps13_buck(4, MIN_500_MV, STEP_6_25_MV, 0x10),
> + regulator_desc_s2mps13_buck(5, MIN_500_MV, STEP_6_25_MV, 0x10),
> + regulator_desc_s2mps13_buck(6, MIN_500_MV, STEP_6_25_MV, 0x10),
> + regulator_desc_s2mps13_buck(7, MIN_500_MV, STEP_6_25_MV, 0x10),
> + regulator_desc_s2mps13_buck(8, MIN_1000_MV, STEP_12_5_MV, 0x20),
> + regulator_desc_s2mps13_buck(9, MIN_1000_MV, STEP_12_5_MV, 0x20),
> + regulator_desc_s2mps13_buck(10, MIN_500_MV, STEP_6_25_MV, 0x10),
> +};
> +
> static int s2mps14_regulator_enable(struct regulator_dev *rdev)
> {
> struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
> unsigned int val;
>
> switch (s2mps11->dev_type) {
> + case S2MPS13X:
> case S2MPS14X:
> if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev)))
> val = S2MPS14_ENABLE_SUSPEND;
> @@ -406,6 +496,7 @@ static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev)
>
> /* Below LDO should be always on or does not support suspend mode. */
> switch (s2mps11->dev_type) {
> + case S2MPS13X:
> case S2MPS14X:
> switch (rdev_id) {
> case S2MPS14_LDO3:
> @@ -831,6 +922,10 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
> s2mps11->rdev_num = ARRAY_SIZE(s2mps11_regulators);
> regulators = s2mps11_regulators;
> break;
> + case S2MPS13X:
> + s2mps11->rdev_num = ARRAY_SIZE(s2mps13_regulators);
> + regulators = s2mps13_regulators;
> + break;
> case S2MPS14X:
> s2mps11->rdev_num = ARRAY_SIZE(s2mps14_regulators);
> regulators = s2mps14_regulators;
> @@ -927,6 +1022,7 @@ out:
>
> static const struct platform_device_id s2mps11_pmic_id[] = {
> { "s2mps11-pmic", S2MPS11X},
> + { "s2mps13-pmic", S2MPS13X},
> { "s2mps14-pmic", S2MPS14X},
> { "s2mpu02-pmic", S2MPU02},
> { },
> diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h
> index 0c0343e..3fdb7cf 100644
> --- a/include/linux/mfd/samsung/core.h
> +++ b/include/linux/mfd/samsung/core.h
> @@ -28,6 +28,7 @@
> #define MIN_800_MV 800000
> #define MIN_750_MV 750000
> #define MIN_600_MV 600000
> +#define MIN_500_MV 500000
>
> /* Macros to represent steps for LDO/BUCK */
> #define STEP_50_MV 50000
> diff --git a/include/linux/mfd/samsung/s2mps13.h b/include/linux/mfd/samsung/s2mps13.h
> new file mode 100644
> index 0000000..ce5dda8
> --- /dev/null
> +++ b/include/linux/mfd/samsung/s2mps13.h
> @@ -0,0 +1,186 @@
> +/*
> + * s2mps13.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_S2MPS13_H
> +#define __LINUX_MFD_S2MPS13_H
> +
> +/* S2MPS13 registers */
> +enum s2mps13_reg {
> + S2MPS13_REG_ID,
> + S2MPS13_REG_INT1,
> + S2MPS13_REG_INT2,
> + S2MPS13_REG_INT3,
> + S2MPS13_REG_INT1M,
> + S2MPS13_REG_INT2M,
> + S2MPS13_REG_INT3M,
> + S2MPS13_REG_ST1,
> + S2MPS13_REG_ST2,
> + S2MPS13_REG_PWRONSRC,
> + S2MPS13_REG_OFFSRC,
> + S2MPS13_REG_BU_CHG,
> + S2MPS13_REG_RTCCTRL,
> + S2MPS13_REG_CTRL1,
> + S2MPS13_REG_CTRL2,
> + S2MPS13_REG_RSVD1,
> + S2MPS13_REG_RSVD2,
> + S2MPS13_REG_RSVD3,
> + S2MPS13_REG_RSVD4,
> + S2MPS13_REG_RSVD5,
> + S2MPS13_REG_RSVD6,
> + S2MPS13_REG_CTRL3,
> + S2MPS13_REG_RSVD7,
> + S2MPS13_REG_RSVD8,
> + S2MPS13_REG_WRSTBI,
> + S2MPS13_REG_B1CTRL,
> + S2MPS13_REG_B1OUT,
> + S2MPS13_REG_B2CTRL,
> + S2MPS13_REG_B2OUT,
> + S2MPS13_REG_B3CTRL,
> + S2MPS13_REG_B3OUT,
> + S2MPS13_REG_B4CTRL,
> + S2MPS13_REG_B4OUT,
> + S2MPS13_REG_B5CTRL,
> + S2MPS13_REG_B5OUT,
> + S2MPS13_REG_B6CTRL,
> + S2MPS13_REG_B6OUT,
> + S2MPS13_REG_B7CTRL,
> + S2MPS13_REG_B7OUT,
> + S2MPS13_REG_B8CTRL,
> + S2MPS13_REG_B8OUT,
> + S2MPS13_REG_B9CTRL,
> + S2MPS13_REG_B9OUT,
> + S2MPS13_REG_B10CTRL,
> + S2MPS13_REG_B10OUT,
> + S2MPS13_REG_BB1CTRL,
> + S2MPS13_REG_BB1OUT,
> + S2MPS13_REG_BUCK_RAMP1,
> + S2MPS13_REG_BUCK_RAMP2,
> + S2MPS13_REG_LDO_DVS1,
> + S2MPS13_REG_LDO_DVS2,
> + S2MPS13_REG_LDO_DVS3,
> + S2MPS13_REG_B6OUT2,
> + S2MPS13_REG_L1CTRL,
> + S2MPS13_REG_L2CTRL,
> + S2MPS13_REG_L3CTRL,
> + S2MPS13_REG_L4CTRL,
> + S2MPS13_REG_L5CTRL,
> + S2MPS13_REG_L6CTRL,
> + S2MPS13_REG_L7CTRL,
> + S2MPS13_REG_L8CTRL,
> + S2MPS13_REG_L9CTRL,
> + S2MPS13_REG_L10CTRL,
> + S2MPS13_REG_L11CTRL,
> + S2MPS13_REG_L12CTRL,
> + S2MPS13_REG_L13CTRL,
> + S2MPS13_REG_L14CTRL,
> + S2MPS13_REG_L15CTRL,
> + S2MPS13_REG_L16CTRL,
> + S2MPS13_REG_L17CTRL,
> + S2MPS13_REG_L18CTRL,
> + S2MPS13_REG_L19CTRL,
> + S2MPS13_REG_L20CTRL,
> + S2MPS13_REG_L21CTRL,
> + S2MPS13_REG_L22CTRL,
> + S2MPS13_REG_L23CTRL,
> + S2MPS13_REG_L24CTRL,
> + S2MPS13_REG_L25CTRL,
> + S2MPS13_REG_L26CTRL,
> + S2MPS13_REG_L27CTRL,
> + S2MPS13_REG_L28CTRL,
> + S2MPS13_REG_L30CTRL,
> + S2MPS13_REG_L31CTRL,
> + S2MPS13_REG_L32CTRL,
> + S2MPS13_REG_L33CTRL,
> + S2MPS13_REG_L34CTRL,
> + S2MPS13_REG_L35CTRL,
> + S2MPS13_REG_L36CTRL,
> + S2MPS13_REG_L37CTRL,
> + S2MPS13_REG_L38CTRL,
> + S2MPS13_REG_L39CTRL,
> + S2MPS13_REG_L40CTRL,
> + S2MPS13_REG_LDODSCH1,
> + S2MPS13_REG_LDODSCH2,
> + S2MPS13_REG_LDODSCH3,
> + S2MPS13_REG_LDODSCH4,
> + S2MPS13_REG_LDODSCH5,
> +};
> +
> +/* regulator ids */
> +enum s2mps13_regulators {
> + S2MPS13_LDO1,
> + S2MPS13_LDO2,
> + S2MPS13_LDO3,
> + S2MPS13_LDO4,
> + S2MPS13_LDO5,
> + S2MPS13_LDO6,
> + S2MPS13_LDO7,
> + S2MPS13_LDO8,
> + S2MPS13_LDO9,
> + S2MPS13_LDO10,
> + S2MPS13_LDO11,
> + S2MPS13_LDO12,
> + S2MPS13_LDO13,
> + S2MPS13_LDO14,
> + S2MPS13_LDO15,
> + S2MPS13_LDO16,
> + S2MPS13_LDO17,
> + S2MPS13_LDO18,
> + S2MPS13_LDO19,
> + S2MPS13_LDO20,
> + S2MPS13_LDO21,
> + S2MPS13_LDO22,
> + S2MPS13_LDO23,
> + S2MPS13_LDO24,
> + S2MPS13_LDO25,
> + S2MPS13_LDO26,
> + S2MPS13_LDO27,
> + S2MPS13_LDO28,
> + S2MPS13_LDO29,
> + S2MPS13_LDO30,
> + S2MPS13_LDO31,
> + S2MPS13_LDO32,
> + S2MPS13_LDO33,
> + S2MPS13_LDO34,
> + S2MPS13_LDO35,
> + S2MPS13_LDO36,
> + S2MPS13_LDO37,
> + S2MPS13_LDO38,
> + S2MPS13_LDO39,
> + S2MPS13_LDO40,
> + S2MPS13_BUCK1,
> + S2MPS13_BUCK2,
> + S2MPS13_BUCK3,
> + S2MPS13_BUCK4,
> + S2MPS13_BUCK5,
> + S2MPS13_BUCK6,
> + S2MPS13_BUCK7,
> + S2MPS13_BUCK8,
> + S2MPS13_BUCK9,
> + S2MPS13_BUCK10,
> +
> + S2MPS13_REGULATOR_MAX,
> +};
> +
> +/*
> + * Default ramp delay in uv/us. Datasheet says that ramp delay can be
> + * controlled however it does not specify which register is used for that.
> + * Let's assume that default value will be set.
> + */
> +#define S2MPS13_BUCK_RAMP_DELAY 12500
> +
> +#endif /* __LINUX_MFD_S2MPS13_H */
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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