regulator: s2mps11: Add support S2MPS13 regulator device

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].

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

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>
@@ -206,6 +207,15 @@ 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,
@@ -337,6 +347,9 @@ 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;

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"

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},
 	{ },

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

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 */