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Groups > linux.kernel > #1255809 > unrolled thread

[PATCH v2 0/5] mfd: sec: add S2MPS15 PMIC support

Started byAlim Akhtar <alim.akhtar@samsung.com>
First post2015-10-26 11:50 +0100
Last post2015-10-26 11:50 +0100
Articles 3 — 1 participant

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Contents

  [PATCH v2 0/5] mfd: sec: add S2MPS15 PMIC support Alim Akhtar <alim.akhtar@samsung.com> - 2015-10-26 11:50 +0100
    [PATCH v2 4/5] clk: s2mps15: Add support for S2MPS15 clocks Alim Akhtar <alim.akhtar@samsung.com> - 2015-10-26 11:50 +0100
    [PATCH v2 3/5] regulator: s2mps11: add support for S2MPS15 regulators Alim Akhtar <alim.akhtar@samsung.com> - 2015-10-26 11:50 +0100

#1255809 — [PATCH v2 0/5] mfd: sec: add S2MPS15 PMIC support

FromAlim Akhtar <alim.akhtar@samsung.com>
Date2015-10-26 11:50 +0100
Subject[PATCH v2 0/5] mfd: sec: add S2MPS15 PMIC support
Message-ID<qnNvH-78a-7@gated-at.bofh.it>
Samsung's S2MPS15 PMIC is targetted to be used with Samsung's Exynos7 SoC.
The S2MPS15 PMIC is similar in functionality to S2MPS11/14 PMIC. It contains
27 LDO and 10 Buck regulators, RTC, three 32.768 KHz clock outputs and allows
programming these blocks via a I2C interface. This patch series adds initial
support for LDO/Buck regulators of S2MPS15 PMIC.

Changes since v1:
* Added suggestion from Krzysztof [1].
* Added s2mps15's 32.768 clocks support.
* Added s2mps15's rtc support.

V1 of these patches (with a lesser features) were posted a year back,
since then there is not much progress on this, this is my attempt to
move things forward.

[1]-> https://lkml.org/lkml/2014/10/14/67

This series is based on linux-next-20151022.
This is tested on exynos7-espresso board.

Alim Akhtar (2):
  clk: s2mps15: Add support for S2MPS15 clocks
  drivers/rtc/rtc-s5m.c: add support for S2MPS15 RTC

Thomas Abraham (3):
  dt-bindings: mfd: s2mps11: add documentation for s2mps15 PMIC
  mfd: sec: Add support for S2MPS15 PMIC
  regulator: s2mps11: add support for S2MPS15 regulators

 Documentation/devicetree/bindings/mfd/s2mps11.txt |   23 ++-
 drivers/clk/Kconfig                               |    5 +-
 drivers/clk/clk-s2mps11.c                         |   24 +++
 drivers/mfd/sec-core.c                            |   31 ++++
 drivers/mfd/sec-irq.c                             |    8 +
 drivers/regulator/Kconfig                         |    4 +-
 drivers/regulator/s2mps11.c                       |  135 ++++++++++++++++-
 drivers/rtc/rtc-s5m.c                             |   14 +-
 include/linux/mfd/samsung/core.h                  |    1 +
 include/linux/mfd/samsung/s2mps15.h               |  161 +++++++++++++++++++++
 10 files changed, 392 insertions(+), 14 deletions(-)
 create mode 100644 include/linux/mfd/samsung/s2mps15.h

-- 
1.7.10.4

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#1255811 — [PATCH v2 4/5] clk: s2mps15: Add support for S2MPS15 clocks

FromAlim Akhtar <alim.akhtar@samsung.com>
Date2015-10-26 11:50 +0100
Subject[PATCH v2 4/5] clk: s2mps15: Add support for S2MPS15 clocks
Message-ID<qnNvI-78a-31@gated-at.bofh.it>
In reply to#1255809
S2MPS15 PMIC has three 32k buffered clocks outputs. This patch
adds supports for the same to the s2mps11 clock driver.

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
---
 drivers/clk/Kconfig       |    5 +++--
 drivers/clk/clk-s2mps11.c |   24 ++++++++++++++++++++++++
 2 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index a1fa61159179..037a314b5d76 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -120,9 +120,10 @@ config COMMON_CLK_S2MPS11
 	tristate "Clock driver for S2MPS1X/S5M8767 MFD"
 	depends on MFD_SEC_CORE
 	---help---
-	  This driver supports S2MPS11/S2MPS14/S5M8767 crystal oscillator
+	  This driver supports S2MPS1X/S5M8767 crystal oscillator
 	  clock. These multi-function devices have two (S2MPS14) or three
-	  (S2MPS11, S5M8767) fixed-rate oscillators, clocked at 32KHz each.
+	  (S2MPS11/S2MPS13/S2MPS15/S5M8767) fixed-rate oscillators,
+	  clocked at 32KHz each.
 
 config CLK_TWL6040
 	tristate "External McPDM functional clock from twl6040"
diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
index d266299dfdb1..455500dca653 100644
--- a/drivers/clk/clk-s2mps11.c
+++ b/drivers/clk/clk-s2mps11.c
@@ -25,6 +25,7 @@
 #include <linux/mfd/samsung/s2mps11.h>
 #include <linux/mfd/samsung/s2mps13.h>
 #include <linux/mfd/samsung/s2mps14.h>
+#include <linux/mfd/samsung/s2mps15.h>
 #include <linux/mfd/samsung/s5m8767.h>
 #include <linux/mfd/samsung/core.h>
 
@@ -148,6 +149,24 @@ static struct clk_init_data s2mps14_clks_init[S2MPS11_CLKS_NUM] = {
 	},
 };
 
+static struct clk_init_data s2mps15_clks_init[S2MPS11_CLKS_NUM] = {
+	[S2MPS11_CLK_AP] = {
+		.name = "s2mps15_ap",
+		.ops = &s2mps11_clk_ops,
+		.flags = CLK_IS_ROOT,
+	},
+	[S2MPS11_CLK_CP] = {
+		.name = "s2mps15_cp",
+		.ops = &s2mps11_clk_ops,
+		.flags = CLK_IS_ROOT,
+	},
+	[S2MPS11_CLK_BT] = {
+		.name = "s2mps15_bt",
+		.ops = &s2mps11_clk_ops,
+		.flags = CLK_IS_ROOT,
+	},
+};
+
 static struct device_node *s2mps11_clk_parse_dt(struct platform_device *pdev,
 		struct clk_init_data *clks_init)
 {
@@ -207,6 +226,10 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
 		s2mps11_reg = S2MPS14_REG_RTCCTRL;
 		clks_init = s2mps14_clks_init;
 		break;
+	case S2MPS15X:
+		s2mps11_reg = S2MPS15_REG_RTC_BUF;
+		clks_init = s2mps15_clks_init;
+		break;
 	case S5M8767X:
 		s2mps11_reg = S5M8767_REG_CTRL1;
 		clks_init = s2mps11_clks_init;
@@ -292,6 +315,7 @@ static const struct platform_device_id s2mps11_clk_id[] = {
 	{ "s2mps11-clk", S2MPS11X},
 	{ "s2mps13-clk", S2MPS13X},
 	{ "s2mps14-clk", S2MPS14X},
+	{ "s2mps15-clk", S2MPS15X},
 	{ "s5m8767-clk", S5M8767X},
 	{ },
 };
-- 
1.7.10.4

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#1255815 — [PATCH v2 3/5] regulator: s2mps11: add support for S2MPS15 regulators

FromAlim Akhtar <alim.akhtar@samsung.com>
Date2015-10-26 11:50 +0100
Subject[PATCH v2 3/5] regulator: s2mps11: add support for S2MPS15 regulators
Message-ID<qnNvI-78a-43@gated-at.bofh.it>
In reply to#1255809
From: Thomas Abraham <thomas.ab@samsung.com>

The S2MPS15 PMIC is similar in functionality to S2MPS11/14 PMIC. It contains
27 LDO and 10 Buck regulators and allows programming these regulators via a
I2C interface. This patch adds initial support for LDO/Buck regulators of
S2MPS15 PMIC.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 drivers/regulator/Kconfig   |    4 +-
 drivers/regulator/s2mps11.c |  135 ++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 136 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 64bccff557be..3e3ee5b88b3f 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -588,10 +588,10 @@ config REGULATOR_S2MPA01
 	 via I2C bus. S2MPA01 has 10 Bucks and 26 LDO outputs.
 
 config REGULATOR_S2MPS11
-	tristate "Samsung S2MPS11/S2MPS13/S2MPS14/S2MPU02 voltage regulator"
+	tristate "Samsung S2MPS11/13/14/15/S2MPU02 voltage regulator"
 	depends on MFD_SEC_CORE
 	help
-	 This driver supports a Samsung S2MPS11/S2MPS13/S2MPS14/S2MPU02 voltage
+	 This driver supports a Samsung S2MPS11/13/14/15/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.
diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index 72fc3c32db49..12c59158552c 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -32,6 +32,7 @@
 #include <linux/mfd/samsung/s2mps11.h>
 #include <linux/mfd/samsung/s2mps13.h>
 #include <linux/mfd/samsung/s2mps14.h>
+#include <linux/mfd/samsung/s2mps15.h>
 #include <linux/mfd/samsung/s2mpu02.h>
 
 /* The highest number of possible regulators for supported devices. */
@@ -661,6 +662,133 @@ static const struct regulator_desc s2mps14_regulators[] = {
 				    S2MPS14_BUCK1235_START_SEL),
 };
 
+static struct regulator_ops s2mps15_reg_ldo_ops = {
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+	.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,
+};
+
+static struct regulator_ops s2mps15_reg_buck_ops = {
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+	.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,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+};
+
+#define regulator_desc_s2mps15_ldo(num, range) {	\
+	.name		= "LDO"#num,			\
+	.id		= S2MPS15_LDO##num,		\
+	.ops		= &s2mps15_reg_ldo_ops,		\
+	.type		= REGULATOR_VOLTAGE,		\
+	.owner		= THIS_MODULE,			\
+	.linear_ranges	= range,			\
+	.n_linear_ranges = ARRAY_SIZE(range),		\
+	.n_voltages	= S2MPS15_LDO_N_VOLTAGES,	\
+	.vsel_reg	= S2MPS15_REG_L1CTRL + num - 1,	\
+	.vsel_mask	= S2MPS15_LDO_VSEL_MASK,	\
+	.enable_reg	= S2MPS15_REG_L1CTRL + num - 1,	\
+	.enable_mask	= S2MPS15_ENABLE_MASK		\
+}
+
+#define regulator_desc_s2mps15_buck(num, range) {			\
+	.name		= "BUCK"#num,					\
+	.id		= S2MPS15_BUCK##num,				\
+	.ops		= &s2mps15_reg_buck_ops,			\
+	.type		= REGULATOR_VOLTAGE,				\
+	.owner		= THIS_MODULE,					\
+	.linear_ranges	= range,					\
+	.n_linear_ranges = ARRAY_SIZE(range),				\
+	.ramp_delay	= 12500,					\
+	.n_voltages	= S2MPS15_BUCK_N_VOLTAGES,			\
+	.vsel_reg	= S2MPS15_REG_B1CTRL2 + ((num - 1) * 2),	\
+	.vsel_mask	= S2MPS15_BUCK_VSEL_MASK,			\
+	.enable_reg	= S2MPS15_REG_B1CTRL1 + ((num - 1) * 2),	\
+	.enable_mask	= S2MPS15_ENABLE_MASK				\
+}
+
+/* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */
+static const struct regulator_linear_range s2mps15_ldo_voltage_ranges1[] = {
+	REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000),
+};
+
+/* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */
+static const struct regulator_linear_range s2mps15_ldo_voltage_ranges2[] = {
+	REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000),
+};
+
+/* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */
+static const struct regulator_linear_range s2mps15_ldo_voltage_ranges3[] = {
+	REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500),
+};
+
+/* voltage range for s2mps15 LDO 7, 8, 9 and 10 */
+static const struct regulator_linear_range s2mps15_ldo_voltage_ranges4[] = {
+	REGULATOR_LINEAR_RANGE(700000, 0xc, 0x18, 25000),
+};
+
+/* voltage range for s2mps15 LDO 1 */
+static const struct regulator_linear_range s2mps15_ldo_voltage_ranges5[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500),
+};
+
+/* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */
+static const struct regulator_linear_range s2mps15_buck_voltage_ranges1[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0x20, 0xb0, 6250),
+};
+
+/* voltage range for s2mps15 BUCK 8, 9 and 10 */
+static const struct regulator_linear_range s2mps15_buck_voltage_ranges2[] = {
+	REGULATOR_LINEAR_RANGE(1000000, 0x20, 0xc0, 12500),
+};
+
+static const struct regulator_desc s2mps15_regulators[] = {
+	regulator_desc_s2mps15_ldo(1, s2mps15_ldo_voltage_ranges5),
+	regulator_desc_s2mps15_ldo(2, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(3, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(4, s2mps15_ldo_voltage_ranges3),
+	regulator_desc_s2mps15_ldo(5, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(6, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(7, s2mps15_ldo_voltage_ranges4),
+	regulator_desc_s2mps15_ldo(8, s2mps15_ldo_voltage_ranges4),
+	regulator_desc_s2mps15_ldo(9, s2mps15_ldo_voltage_ranges4),
+	regulator_desc_s2mps15_ldo(10, s2mps15_ldo_voltage_ranges4),
+	regulator_desc_s2mps15_ldo(11, s2mps15_ldo_voltage_ranges3),
+	regulator_desc_s2mps15_ldo(12, s2mps15_ldo_voltage_ranges3),
+	regulator_desc_s2mps15_ldo(13, s2mps15_ldo_voltage_ranges3),
+	regulator_desc_s2mps15_ldo(14, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(15, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(16, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(17, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(18, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(19, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(20, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(21, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(22, s2mps15_ldo_voltage_ranges3),
+	regulator_desc_s2mps15_ldo(23, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(24, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(25, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(26, s2mps15_ldo_voltage_ranges3),
+	regulator_desc_s2mps15_ldo(27, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_buck(1, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(2, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(3, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(4, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(5, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(6, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(7, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(8, s2mps15_buck_voltage_ranges2),
+	regulator_desc_s2mps15_buck(9, s2mps15_buck_voltage_ranges2),
+	regulator_desc_s2mps15_buck(10, s2mps15_buck_voltage_ranges2),
+};
+
 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11,
 		struct regulator_dev *rdev)
 {
@@ -974,6 +1102,10 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
 		regulators = s2mps14_regulators;
 		BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num);
 		break;
+	case S2MPS15X:
+		s2mps11->rdev_num = ARRAY_SIZE(s2mps15_regulators);
+		regulators = s2mps15_regulators;
+		break;
 	case S2MPU02:
 		s2mps11->rdev_num = ARRAY_SIZE(s2mpu02_regulators);
 		regulators = s2mpu02_regulators;
@@ -1070,6 +1202,7 @@ static const struct platform_device_id s2mps11_pmic_id[] = {
 	{ "s2mps11-pmic", S2MPS11X},
 	{ "s2mps13-pmic", S2MPS13X},
 	{ "s2mps14-pmic", S2MPS14X},
+	{ "s2mps15-pmic", S2MPS15X},
 	{ "s2mpu02-pmic", S2MPU02},
 	{ },
 };
@@ -1097,5 +1230,5 @@ module_exit(s2mps11_pmic_exit);
 
 /* Module information */
 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
-MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPU02 Regulator Driver");
+MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPS15/S2MPU02 Regulator Driver");
 MODULE_LICENSE("GPL");
-- 
1.7.10.4

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