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[PATCH 2/3] dt-bindings: regulator/mfd: Reorganize S5M8767 bindings

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  [PATCH 2/3] dt-bindings: regulator/mfd: Reorganize S5M8767 bindings Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-12-04 02:20 +0100
    Re: [PATCH 2/3] dt-bindings: regulator/mfd: Reorganize S5M8767  bindings Mark Brown <broonie@kernel.org> - 2015-12-04 13:10 +0100
    Re: [PATCH 2/3] dt-bindings: regulator/mfd: Reorganize S5M8767  bindings Rob Herring <robh@kernel.org> - 2015-12-04 16:30 +0100
    Re: [PATCH 2/3] dt-bindings: regulator/mfd: Reorganize S5M8767  bindings Lee Jones <lee.jones@linaro.org> - 2015-12-07 10:40 +0100

#1283507 — [PATCH 2/3] dt-bindings: regulator/mfd: Reorganize S5M8767 bindings

The regulator/s5m8767-regulator.txt duplicates some of the information
about bindings with old mfd/s2mps11.txt. Now common part exists entirely
in mfd/samsung,sec-core.txt so:
 - add company prefix to file name (regulator/samsung,s5m8767.txt),
 - remove duplicated information,
 - reorganize the contents to match style of
   regulator/samsung,s2mps11.txt.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 .../devicetree/bindings/mfd/samsung,sec-core.txt   |   4 +-
 .../bindings/regulator/s5m8767-regulator.txt       | 163 ---------------------
 .../bindings/regulator/samsung,s5m8767.txt         | 145 ++++++++++++++++++
 MAINTAINERS                                        |   2 +-
 4 files changed, 149 insertions(+), 165 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt
 create mode 100644 Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt

diff --git a/Documentation/devicetree/bindings/mfd/samsung,sec-core.txt b/Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
index ef0166d0f643..4aeb95c82304 100644
--- a/Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
+++ b/Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
@@ -14,6 +14,7 @@ addressed by the host system using different I2C slave addresses.
 This document describes bindings for main device node. Optional sub-blocks
 must be a sub-nodes to it. Bindings for them can be found in:
  - bindings/regulator/samsung,s2mps11.txt
+ - bindings/regulator/samsung,s5m8767.txt
  - bindings/clock/samsung,s2mps11.txt
 
 
@@ -23,7 +24,8 @@ Required properties:
 	- "samsung,s2mps13-pmic",
 	- "samsung,s2mps14-pmic",
 	- "samsung,s2mps15-pmic",
-	- "samsung,s2mpu02-pmic".
+	- "samsung,s2mpu02-pmic",
+	- "samsung,s5m8767-pmic".
  - reg: Specifies the I2C slave address of the pmic block. It should be 0x66.
 
 Optional properties:
diff --git a/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt b/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt
deleted file mode 100644
index 20191315e444..000000000000
--- a/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt
+++ /dev/null
@@ -1,163 +0,0 @@
-* Samsung S5M8767 Voltage and Current Regulator
-
-The Samsung S5M8767 is a multi-function device which includes voltage and
-current regulators, rtc, charger controller and other sub-blocks. It is
-interfaced to the host controller using a i2c interface. Each sub-block is
-addressed by the host system using different i2c slave address. This document
-describes the bindings for 'pmic' sub-block of s5m8767.
-
-Required properties:
-- compatible: Should be "samsung,s5m8767-pmic".
-- reg: Specifies the i2c slave address of the pmic block. It should be 0x66.
-
-- s5m8767,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
-  units for buck2 when changing voltage using gpio dvs. Refer to [1] below
-  for additional information.
-
-- s5m8767,pmic-buck3-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
-  units for buck3 when changing voltage using gpio dvs. Refer to [1] below
-  for additional information.
-
-- s5m8767,pmic-buck4-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
-  units for buck4 when changing voltage using gpio dvs. Refer to [1] below
-  for additional information.
-
-- s5m8767,pmic-buck-ds-gpios: GPIO specifiers for three host gpio's used
-  for selecting GPIO DVS lines. It is one-to-one mapped to dvs gpio lines.
-
-[1] If none of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
-    property is specified, the 's5m8767,pmic-buck[2/3/4]-dvs-voltage'
-    property should specify atleast one voltage level (which would be a
-    safe operating voltage).
-
-    If either of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
-    property is specified, then all the eight voltage values for the
-    's5m8767,pmic-buck[2/3/4]-dvs-voltage' should be specified.
-
-Optional properties:
-- interrupt-parent: Specifies the phandle of the interrupt controller to which
-  the interrupts from s5m8767 are delivered to.
-- interrupts: Interrupt specifiers for two interrupt sources.
-  - First interrupt specifier is for 'irq1' interrupt.
-  - Second interrupt specifier is for 'alert' interrupt.
-- s5m8767,pmic-buck2-uses-gpio-dvs: 'buck2' can be controlled by gpio dvs.
-- s5m8767,pmic-buck3-uses-gpio-dvs: 'buck3' can be controlled by gpio dvs.
-- s5m8767,pmic-buck4-uses-gpio-dvs: 'buck4' can be controlled by gpio dvs.
-
-Additional properties required if either of the optional properties are used:
-
-- s5m8767,pmic-buck234-default-dvs-idx: Default voltage setting selected from
-  the possible 8 options selectable by the dvs gpios. The value of this
-  property should be between 0 and 7. If not specified or if out of range, the
-  default value of this property is set to 0.
-
-- s5m8767,pmic-buck-dvs-gpios: GPIO specifiers for three host gpio's used
-  for dvs. The format of the gpio specifier depends in the gpio controller.
-
-Regulators: The regulators of s5m8767 that have to be instantiated should be
-included in a sub-node named 'regulators'. Regulator nodes included in this
-sub-node should be of the format as listed below.
-
-	regulator_name {
-		ldo1_reg: LDO1 {
-			regulator-name = "VDD_ALIVE_1.0V";
-			regulator-min-microvolt = <1100000>;
-			regulator-max-microvolt = <1100000>;
-			regulator-always-on;
-			regulator-boot-on;
-			op_mode = <1>; /* Normal Mode */
-		};
-	};
-The above regulator entries are defined in regulator bindings documentation
-except these properties:
-	- op_mode: describes the different operating modes of the LDO's with
-		power mode change in SOC. The different possible values are,
-		0 - always off mode
-		1 - on in normal mode
-		2 - low power mode
-		3 - suspend mode
-	- s5m8767,pmic-ext-control-gpios: (optional) GPIO specifier for one
-		GPIO controlling this regulator (enable/disable); This is
-		valid only for buck9.
-
-The following are the names of the regulators that the s5m8767 pmic block
-supports. Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number
-as per the datasheet of s5m8767.
-
-	- LDOn
-		  - valid values for n are 1 to 28
-		  - Example: LDO1, LDO2, LDO28
-	- BUCKn
-		  - valid values for n are 1 to 9.
-		  - Example: BUCK1, BUCK2, BUCK9
-
-The bindings inside the regulator nodes use the standard regulator bindings
-which are documented elsewhere.
-
-Example:
-
-	s5m8767_pmic@66 {
-		compatible = "samsung,s5m8767-pmic";
-		reg = <0x66>;
-
-		s5m8767,pmic-buck2-uses-gpio-dvs;
-		s5m8767,pmic-buck3-uses-gpio-dvs;
-		s5m8767,pmic-buck4-uses-gpio-dvs;
-
-		s5m8767,pmic-buck-default-dvs-idx = <0>;
-
-		s5m8767,pmic-buck-dvs-gpios = <&gpx0 0 0>, /* DVS1 */
-						 <&gpx0 1 0>, /* DVS2 */
-						 <&gpx0 2 0>; /* DVS3 */
-
-		s5m8767,pmic-buck-ds-gpios = <&gpx2 3 0>, /* SET1 */
-						<&gpx2 4 0>, /* SET2 */
-						<&gpx2 5 0>; /* SET3 */
-
-		s5m8767,pmic-buck2-dvs-voltage = <1350000>, <1300000>,
-						 <1250000>, <1200000>,
-						 <1150000>, <1100000>,
-						 <1000000>, <950000>;
-
-		s5m8767,pmic-buck3-dvs-voltage = <1100000>, <1100000>,
-						 <1100000>, <1100000>,
-						 <1000000>, <1000000>,
-						 <1000000>, <1000000>;
-
-		s5m8767,pmic-buck4-dvs-voltage = <1200000>, <1200000>,
-						 <1200000>, <1200000>,
-						 <1200000>, <1200000>,
-						 <1200000>, <1200000>;
-
-		regulators {
-			ldo1_reg: LDO1 {
-				regulator-name = "VDD_ABB_3.3V";
-				regulator-min-microvolt = <3300000>;
-				regulator-max-microvolt = <3300000>;
-				op_mode = <1>; /* Normal Mode */
-			};
-
-			ldo2_reg: LDO2 {
-				regulator-name = "VDD_ALIVE_1.1V";
-				regulator-min-microvolt = <1100000>;
-				regulator-max-microvolt = <1100000>;
-				regulator-always-on;
-			};
-
-			buck1_reg: BUCK1 {
-				regulator-name = "VDD_MIF_1.2V";
-				regulator-min-microvolt = <950000>;
-				regulator-max-microvolt = <1350000>;
-				regulator-always-on;
-				regulator-boot-on;
-			};
-
-			vemmc_reg: BUCK9 {
-				regulator-name = "VMEM_VDD_2.8V";
-				regulator-min-microvolt = <2800000>;
-				regulator-max-microvolt = <2800000>;
-				op_mode = <3>; /* Standby Mode */
-				s5m8767,pmic-ext-control-gpios = <&gpk0 2 0>;
-			};
-		};
-	};
diff --git a/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt b/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
new file mode 100644
index 000000000000..093edda0c8df
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
@@ -0,0 +1,145 @@
+Binding for Samsung S5M8767 regulator block
+===========================================
+
+This is a part of device tree bindings for S5M family multi-function devices.
+More information can be found in bindings/mfd/sec-core.txt file.
+
+The S5M8767 device provide buck and LDO regulators.
+
+To register these with regulator framework instantiate under main device node
+a sub-node named "regulators" with more sub-nodes for each regulator using the
+common regulator binding documented in:
+ - Documentation/devicetree/bindings/regulator/regulator.txt
+
+
+Required properties of the main device node (the parent!):
+ - s5m8767,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
+   units for buck2 when changing voltage using gpio dvs. Refer to [1] below
+   for additional information.
+
+ - s5m8767,pmic-buck3-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
+   units for buck3 when changing voltage using gpio dvs. Refer to [1] below
+   for additional information.
+
+ - s5m8767,pmic-buck4-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
+   units for buck4 when changing voltage using gpio dvs. Refer to [1] below
+   for additional information.
+
+ - s5m8767,pmic-buck-ds-gpios: GPIO specifiers for three host gpio's used
+   for selecting GPIO DVS lines. It is one-to-one mapped to dvs gpio lines.
+
+ [1] If none of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
+     property is specified, the 's5m8767,pmic-buck[2/3/4]-dvs-voltage'
+     property should specify atleast one voltage level (which would be a
+     safe operating voltage).
+
+     If either of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
+     property is specified, then all the eight voltage values for the
+     's5m8767,pmic-buck[2/3/4]-dvs-voltage' should be specified.
+
+Optional properties of the main device node (the parent!):
+ - s5m8767,pmic-buck2-uses-gpio-dvs: 'buck2' can be controlled by gpio dvs.
+ - s5m8767,pmic-buck3-uses-gpio-dvs: 'buck3' can be controlled by gpio dvs.
+ - s5m8767,pmic-buck4-uses-gpio-dvs: 'buck4' can be controlled by gpio dvs.
+
+Additional properties required if either of the optional properties are used:
+
+ - s5m8767,pmic-buck234-default-dvs-idx: Default voltage setting selected from
+   the possible 8 options selectable by the dvs gpios. The value of this
+   property should be between 0 and 7. If not specified or if out of range, the
+   default value of this property is set to 0.
+
+ - s5m8767,pmic-buck-dvs-gpios: GPIO specifiers for three host gpio's used
+   for dvs. The format of the gpio specifier depends in the gpio controller.
+
+
+Names of regulators supported by S5M8767 device:
+	- LDOn
+		  - valid values for n are 1 to 28
+		  - Example: LDO1, LDO2, LDO28
+	- BUCKn
+		  - valid values for n are 1 to 9.
+		  - Example: BUCK1, BUCK2, BUCK9
+Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number
+as per the datasheet of device.
+
+
+Optional properties of the nodes under "regulators" sub-node:
+ - op_mode: describes the different operating modes of the LDO's with
+            power mode change in SOC. The different possible values are,
+             0 - always off mode
+             1 - on in normal mode
+             2 - low power mode
+             3 - suspend mode
+ - s5m8767,pmic-ext-control-gpios: (optional) GPIO specifier for one
+                                   GPIO controlling this regulator
+                                   (enable/disable); This is valid only
+                                   for buck9.
+
+Example:
+
+	s5m8767_pmic@66 {
+		compatible = "samsung,s5m8767-pmic";
+		reg = <0x66>;
+
+		s5m8767,pmic-buck2-uses-gpio-dvs;
+		s5m8767,pmic-buck3-uses-gpio-dvs;
+		s5m8767,pmic-buck4-uses-gpio-dvs;
+
+		s5m8767,pmic-buck-default-dvs-idx = <0>;
+
+		s5m8767,pmic-buck-dvs-gpios = <&gpx0 0 0>, /* DVS1 */
+						 <&gpx0 1 0>, /* DVS2 */
+						 <&gpx0 2 0>; /* DVS3 */
+
+		s5m8767,pmic-buck-ds-gpios = <&gpx2 3 0>, /* SET1 */
+						<&gpx2 4 0>, /* SET2 */
+						<&gpx2 5 0>; /* SET3 */
+
+		s5m8767,pmic-buck2-dvs-voltage = <1350000>, <1300000>,
+						 <1250000>, <1200000>,
+						 <1150000>, <1100000>,
+						 <1000000>, <950000>;
+
+		s5m8767,pmic-buck3-dvs-voltage = <1100000>, <1100000>,
+						 <1100000>, <1100000>,
+						 <1000000>, <1000000>,
+						 <1000000>, <1000000>;
+
+		s5m8767,pmic-buck4-dvs-voltage = <1200000>, <1200000>,
+						 <1200000>, <1200000>,
+						 <1200000>, <1200000>,
+						 <1200000>, <1200000>;
+
+		regulators {
+			ldo1_reg: LDO1 {
+				regulator-name = "VDD_ABB_3.3V";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				op_mode = <1>; /* Normal Mode */
+			};
+
+			ldo2_reg: LDO2 {
+				regulator-name = "VDD_ALIVE_1.1V";
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-always-on;
+			};
+
+			buck1_reg: BUCK1 {
+				regulator-name = "VDD_MIF_1.2V";
+				regulator-min-microvolt = <950000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-always-on;
+				regulator-boot-on;
+			};
+
+			vemmc_reg: BUCK9 {
+				regulator-name = "VMEM_VDD_2.8V";
+				regulator-min-microvolt = <2800000>;
+				regulator-max-microvolt = <2800000>;
+				op_mode = <3>; /* Standby Mode */
+				s5m8767,pmic-ext-control-gpios = <&gpk0 2 0>;
+			};
+		};
+	};
diff --git a/MAINTAINERS b/MAINTAINERS
index 137284e37250..7e1db5746ee4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9233,9 +9233,9 @@ F:	drivers/regulator/s5m*.c
 F:	drivers/clk/clk-s2mps11.c
 F:	drivers/rtc/rtc-s5m.c
 F:	include/linux/mfd/samsung/
-F:	Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt
 F:	Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
 F:	Documentation/devicetree/bindings/regulator/samsung,s2m*.txt
+F:	Documentation/devicetree/bindings/regulator/samsung,s5m*.txt
 F:	Documentation/devicetree/bindings/clock/samsung,s2mps11.txt
 
 SAMSUNG S5P/EXYNOS4 SOC SERIES CAMERA SUBSYSTEM DRIVERS
-- 
1.9.1

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#1283766 — Re: [PATCH 2/3] dt-bindings: regulator/mfd: Reorganize S5M8767 bindings

[Multipart message — attachments visible in raw view] — view raw

On Fri, Dec 04, 2015 at 10:10:04AM +0900, Krzysztof Kozlowski wrote:
> The regulator/s5m8767-regulator.txt duplicates some of the information
> about bindings with old mfd/s2mps11.txt. Now common part exists entirely
> in mfd/samsung,sec-core.txt so:

Acked-by: Mark Brown <broonie@kernel.org>

[toc] | [prev] | [next] | [standalone]

#1283928 — Re: [PATCH 2/3] dt-bindings: regulator/mfd: Reorganize S5M8767 bindings

On Fri, Dec 04, 2015 at 10:10:04AM +0900, Krzysztof Kozlowski wrote:
> The regulator/s5m8767-regulator.txt duplicates some of the information
> about bindings with old mfd/s2mps11.txt. Now common part exists entirely
> in mfd/samsung,sec-core.txt so:
>  - add company prefix to file name (regulator/samsung,s5m8767.txt),
>  - remove duplicated information,
>  - reorganize the contents to match style of
>    regulator/samsung,s2mps11.txt.
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

Acked-by: Rob Herring <robh@kernel.org>

> ---
>  .../devicetree/bindings/mfd/samsung,sec-core.txt   |   4 +-
>  .../bindings/regulator/s5m8767-regulator.txt       | 163 ---------------------
>  .../bindings/regulator/samsung,s5m8767.txt         | 145 ++++++++++++++++++
>  MAINTAINERS                                        |   2 +-
>  4 files changed, 149 insertions(+), 165 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt
>  create mode 100644 Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
> 
> diff --git a/Documentation/devicetree/bindings/mfd/samsung,sec-core.txt b/Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
> index ef0166d0f643..4aeb95c82304 100644
> --- a/Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
> +++ b/Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
> @@ -14,6 +14,7 @@ addressed by the host system using different I2C slave addresses.
>  This document describes bindings for main device node. Optional sub-blocks
>  must be a sub-nodes to it. Bindings for them can be found in:
>   - bindings/regulator/samsung,s2mps11.txt
> + - bindings/regulator/samsung,s5m8767.txt
>   - bindings/clock/samsung,s2mps11.txt
>  
>  
> @@ -23,7 +24,8 @@ Required properties:
>  	- "samsung,s2mps13-pmic",
>  	- "samsung,s2mps14-pmic",
>  	- "samsung,s2mps15-pmic",
> -	- "samsung,s2mpu02-pmic".
> +	- "samsung,s2mpu02-pmic",
> +	- "samsung,s5m8767-pmic".
>   - reg: Specifies the I2C slave address of the pmic block. It should be 0x66.
>  
>  Optional properties:
> diff --git a/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt b/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt
> deleted file mode 100644
> index 20191315e444..000000000000
> --- a/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt
> +++ /dev/null
> @@ -1,163 +0,0 @@
> -* Samsung S5M8767 Voltage and Current Regulator
> -
> -The Samsung S5M8767 is a multi-function device which includes voltage and
> -current regulators, rtc, charger controller and other sub-blocks. It is
> -interfaced to the host controller using a i2c interface. Each sub-block is
> -addressed by the host system using different i2c slave address. This document
> -describes the bindings for 'pmic' sub-block of s5m8767.
> -
> -Required properties:
> -- compatible: Should be "samsung,s5m8767-pmic".
> -- reg: Specifies the i2c slave address of the pmic block. It should be 0x66.
> -
> -- s5m8767,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
> -  units for buck2 when changing voltage using gpio dvs. Refer to [1] below
> -  for additional information.
> -
> -- s5m8767,pmic-buck3-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
> -  units for buck3 when changing voltage using gpio dvs. Refer to [1] below
> -  for additional information.
> -
> -- s5m8767,pmic-buck4-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
> -  units for buck4 when changing voltage using gpio dvs. Refer to [1] below
> -  for additional information.
> -
> -- s5m8767,pmic-buck-ds-gpios: GPIO specifiers for three host gpio's used
> -  for selecting GPIO DVS lines. It is one-to-one mapped to dvs gpio lines.
> -
> -[1] If none of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
> -    property is specified, the 's5m8767,pmic-buck[2/3/4]-dvs-voltage'
> -    property should specify atleast one voltage level (which would be a
> -    safe operating voltage).
> -
> -    If either of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
> -    property is specified, then all the eight voltage values for the
> -    's5m8767,pmic-buck[2/3/4]-dvs-voltage' should be specified.
> -
> -Optional properties:
> -- interrupt-parent: Specifies the phandle of the interrupt controller to which
> -  the interrupts from s5m8767 are delivered to.
> -- interrupts: Interrupt specifiers for two interrupt sources.
> -  - First interrupt specifier is for 'irq1' interrupt.
> -  - Second interrupt specifier is for 'alert' interrupt.
> -- s5m8767,pmic-buck2-uses-gpio-dvs: 'buck2' can be controlled by gpio dvs.
> -- s5m8767,pmic-buck3-uses-gpio-dvs: 'buck3' can be controlled by gpio dvs.
> -- s5m8767,pmic-buck4-uses-gpio-dvs: 'buck4' can be controlled by gpio dvs.
> -
> -Additional properties required if either of the optional properties are used:
> -
> -- s5m8767,pmic-buck234-default-dvs-idx: Default voltage setting selected from
> -  the possible 8 options selectable by the dvs gpios. The value of this
> -  property should be between 0 and 7. If not specified or if out of range, the
> -  default value of this property is set to 0.
> -
> -- s5m8767,pmic-buck-dvs-gpios: GPIO specifiers for three host gpio's used
> -  for dvs. The format of the gpio specifier depends in the gpio controller.
> -
> -Regulators: The regulators of s5m8767 that have to be instantiated should be
> -included in a sub-node named 'regulators'. Regulator nodes included in this
> -sub-node should be of the format as listed below.
> -
> -	regulator_name {
> -		ldo1_reg: LDO1 {
> -			regulator-name = "VDD_ALIVE_1.0V";
> -			regulator-min-microvolt = <1100000>;
> -			regulator-max-microvolt = <1100000>;
> -			regulator-always-on;
> -			regulator-boot-on;
> -			op_mode = <1>; /* Normal Mode */
> -		};
> -	};
> -The above regulator entries are defined in regulator bindings documentation
> -except these properties:
> -	- op_mode: describes the different operating modes of the LDO's with
> -		power mode change in SOC. The different possible values are,
> -		0 - always off mode
> -		1 - on in normal mode
> -		2 - low power mode
> -		3 - suspend mode
> -	- s5m8767,pmic-ext-control-gpios: (optional) GPIO specifier for one
> -		GPIO controlling this regulator (enable/disable); This is
> -		valid only for buck9.
> -
> -The following are the names of the regulators that the s5m8767 pmic block
> -supports. Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number
> -as per the datasheet of s5m8767.
> -
> -	- LDOn
> -		  - valid values for n are 1 to 28
> -		  - Example: LDO1, LDO2, LDO28
> -	- BUCKn
> -		  - valid values for n are 1 to 9.
> -		  - Example: BUCK1, BUCK2, BUCK9
> -
> -The bindings inside the regulator nodes use the standard regulator bindings
> -which are documented elsewhere.
> -
> -Example:
> -
> -	s5m8767_pmic@66 {
> -		compatible = "samsung,s5m8767-pmic";
> -		reg = <0x66>;
> -
> -		s5m8767,pmic-buck2-uses-gpio-dvs;
> -		s5m8767,pmic-buck3-uses-gpio-dvs;
> -		s5m8767,pmic-buck4-uses-gpio-dvs;
> -
> -		s5m8767,pmic-buck-default-dvs-idx = <0>;
> -
> -		s5m8767,pmic-buck-dvs-gpios = <&gpx0 0 0>, /* DVS1 */
> -						 <&gpx0 1 0>, /* DVS2 */
> -						 <&gpx0 2 0>; /* DVS3 */
> -
> -		s5m8767,pmic-buck-ds-gpios = <&gpx2 3 0>, /* SET1 */
> -						<&gpx2 4 0>, /* SET2 */
> -						<&gpx2 5 0>; /* SET3 */
> -
> -		s5m8767,pmic-buck2-dvs-voltage = <1350000>, <1300000>,
> -						 <1250000>, <1200000>,
> -						 <1150000>, <1100000>,
> -						 <1000000>, <950000>;
> -
> -		s5m8767,pmic-buck3-dvs-voltage = <1100000>, <1100000>,
> -						 <1100000>, <1100000>,
> -						 <1000000>, <1000000>,
> -						 <1000000>, <1000000>;
> -
> -		s5m8767,pmic-buck4-dvs-voltage = <1200000>, <1200000>,
> -						 <1200000>, <1200000>,
> -						 <1200000>, <1200000>,
> -						 <1200000>, <1200000>;
> -
> -		regulators {
> -			ldo1_reg: LDO1 {
> -				regulator-name = "VDD_ABB_3.3V";
> -				regulator-min-microvolt = <3300000>;
> -				regulator-max-microvolt = <3300000>;
> -				op_mode = <1>; /* Normal Mode */
> -			};
> -
> -			ldo2_reg: LDO2 {
> -				regulator-name = "VDD_ALIVE_1.1V";
> -				regulator-min-microvolt = <1100000>;
> -				regulator-max-microvolt = <1100000>;
> -				regulator-always-on;
> -			};
> -
> -			buck1_reg: BUCK1 {
> -				regulator-name = "VDD_MIF_1.2V";
> -				regulator-min-microvolt = <950000>;
> -				regulator-max-microvolt = <1350000>;
> -				regulator-always-on;
> -				regulator-boot-on;
> -			};
> -
> -			vemmc_reg: BUCK9 {
> -				regulator-name = "VMEM_VDD_2.8V";
> -				regulator-min-microvolt = <2800000>;
> -				regulator-max-microvolt = <2800000>;
> -				op_mode = <3>; /* Standby Mode */
> -				s5m8767,pmic-ext-control-gpios = <&gpk0 2 0>;
> -			};
> -		};
> -	};
> diff --git a/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt b/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
> new file mode 100644
> index 000000000000..093edda0c8df
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
> @@ -0,0 +1,145 @@
> +Binding for Samsung S5M8767 regulator block
> +===========================================
> +
> +This is a part of device tree bindings for S5M family multi-function devices.
> +More information can be found in bindings/mfd/sec-core.txt file.
> +
> +The S5M8767 device provide buck and LDO regulators.
> +
> +To register these with regulator framework instantiate under main device node
> +a sub-node named "regulators" with more sub-nodes for each regulator using the
> +common regulator binding documented in:
> + - Documentation/devicetree/bindings/regulator/regulator.txt
> +
> +
> +Required properties of the main device node (the parent!):
> + - s5m8767,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
> +   units for buck2 when changing voltage using gpio dvs. Refer to [1] below
> +   for additional information.
> +
> + - s5m8767,pmic-buck3-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
> +   units for buck3 when changing voltage using gpio dvs. Refer to [1] below
> +   for additional information.
> +
> + - s5m8767,pmic-buck4-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
> +   units for buck4 when changing voltage using gpio dvs. Refer to [1] below
> +   for additional information.
> +
> + - s5m8767,pmic-buck-ds-gpios: GPIO specifiers for three host gpio's used
> +   for selecting GPIO DVS lines. It is one-to-one mapped to dvs gpio lines.
> +
> + [1] If none of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
> +     property is specified, the 's5m8767,pmic-buck[2/3/4]-dvs-voltage'
> +     property should specify atleast one voltage level (which would be a
> +     safe operating voltage).
> +
> +     If either of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
> +     property is specified, then all the eight voltage values for the
> +     's5m8767,pmic-buck[2/3/4]-dvs-voltage' should be specified.
> +
> +Optional properties of the main device node (the parent!):
> + - s5m8767,pmic-buck2-uses-gpio-dvs: 'buck2' can be controlled by gpio dvs.
> + - s5m8767,pmic-buck3-uses-gpio-dvs: 'buck3' can be controlled by gpio dvs.
> + - s5m8767,pmic-buck4-uses-gpio-dvs: 'buck4' can be controlled by gpio dvs.
> +
> +Additional properties required if either of the optional properties are used:
> +
> + - s5m8767,pmic-buck234-default-dvs-idx: Default voltage setting selected from
> +   the possible 8 options selectable by the dvs gpios. The value of this
> +   property should be between 0 and 7. If not specified or if out of range, the
> +   default value of this property is set to 0.
> +
> + - s5m8767,pmic-buck-dvs-gpios: GPIO specifiers for three host gpio's used
> +   for dvs. The format of the gpio specifier depends in the gpio controller.
> +
> +
> +Names of regulators supported by S5M8767 device:
> +	- LDOn
> +		  - valid values for n are 1 to 28
> +		  - Example: LDO1, LDO2, LDO28
> +	- BUCKn
> +		  - valid values for n are 1 to 9.
> +		  - Example: BUCK1, BUCK2, BUCK9
> +Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number
> +as per the datasheet of device.
> +
> +
> +Optional properties of the nodes under "regulators" sub-node:
> + - op_mode: describes the different operating modes of the LDO's with
> +            power mode change in SOC. The different possible values are,
> +             0 - always off mode
> +             1 - on in normal mode
> +             2 - low power mode
> +             3 - suspend mode
> + - s5m8767,pmic-ext-control-gpios: (optional) GPIO specifier for one
> +                                   GPIO controlling this regulator
> +                                   (enable/disable); This is valid only
> +                                   for buck9.
> +
> +Example:
> +
> +	s5m8767_pmic@66 {
> +		compatible = "samsung,s5m8767-pmic";
> +		reg = <0x66>;
> +
> +		s5m8767,pmic-buck2-uses-gpio-dvs;
> +		s5m8767,pmic-buck3-uses-gpio-dvs;
> +		s5m8767,pmic-buck4-uses-gpio-dvs;
> +
> +		s5m8767,pmic-buck-default-dvs-idx = <0>;
> +
> +		s5m8767,pmic-buck-dvs-gpios = <&gpx0 0 0>, /* DVS1 */
> +						 <&gpx0 1 0>, /* DVS2 */
> +						 <&gpx0 2 0>; /* DVS3 */
> +
> +		s5m8767,pmic-buck-ds-gpios = <&gpx2 3 0>, /* SET1 */
> +						<&gpx2 4 0>, /* SET2 */
> +						<&gpx2 5 0>; /* SET3 */
> +
> +		s5m8767,pmic-buck2-dvs-voltage = <1350000>, <1300000>,
> +						 <1250000>, <1200000>,
> +						 <1150000>, <1100000>,
> +						 <1000000>, <950000>;
> +
> +		s5m8767,pmic-buck3-dvs-voltage = <1100000>, <1100000>,
> +						 <1100000>, <1100000>,
> +						 <1000000>, <1000000>,
> +						 <1000000>, <1000000>;
> +
> +		s5m8767,pmic-buck4-dvs-voltage = <1200000>, <1200000>,
> +						 <1200000>, <1200000>,
> +						 <1200000>, <1200000>,
> +						 <1200000>, <1200000>;
> +
> +		regulators {
> +			ldo1_reg: LDO1 {
> +				regulator-name = "VDD_ABB_3.3V";
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				op_mode = <1>; /* Normal Mode */
> +			};
> +
> +			ldo2_reg: LDO2 {
> +				regulator-name = "VDD_ALIVE_1.1V";
> +				regulator-min-microvolt = <1100000>;
> +				regulator-max-microvolt = <1100000>;
> +				regulator-always-on;
> +			};
> +
> +			buck1_reg: BUCK1 {
> +				regulator-name = "VDD_MIF_1.2V";
> +				regulator-min-microvolt = <950000>;
> +				regulator-max-microvolt = <1350000>;
> +				regulator-always-on;
> +				regulator-boot-on;
> +			};
> +
> +			vemmc_reg: BUCK9 {
> +				regulator-name = "VMEM_VDD_2.8V";
> +				regulator-min-microvolt = <2800000>;
> +				regulator-max-microvolt = <2800000>;
> +				op_mode = <3>; /* Standby Mode */
> +				s5m8767,pmic-ext-control-gpios = <&gpk0 2 0>;
> +			};
> +		};
> +	};
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 137284e37250..7e1db5746ee4 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -9233,9 +9233,9 @@ F:	drivers/regulator/s5m*.c
>  F:	drivers/clk/clk-s2mps11.c
>  F:	drivers/rtc/rtc-s5m.c
>  F:	include/linux/mfd/samsung/
> -F:	Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt
>  F:	Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
>  F:	Documentation/devicetree/bindings/regulator/samsung,s2m*.txt
> +F:	Documentation/devicetree/bindings/regulator/samsung,s5m*.txt
>  F:	Documentation/devicetree/bindings/clock/samsung,s2mps11.txt
>  
>  SAMSUNG S5P/EXYNOS4 SOC SERIES CAMERA SUBSYSTEM DRIVERS
> -- 
> 1.9.1
> 
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#1285135 — Re: [PATCH 2/3] dt-bindings: regulator/mfd: Reorganize S5M8767 bindings

On Fri, 04 Dec 2015, Krzysztof Kozlowski wrote:

> The regulator/s5m8767-regulator.txt duplicates some of the information
> about bindings with old mfd/s2mps11.txt. Now common part exists entirely
> in mfd/samsung,sec-core.txt so:
>  - add company prefix to file name (regulator/samsung,s5m8767.txt),
>  - remove duplicated information,
>  - reorganize the contents to match style of
>    regulator/samsung,s2mps11.txt.
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> ---
>  .../devicetree/bindings/mfd/samsung,sec-core.txt   |   4 +-

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

>  .../bindings/regulator/s5m8767-regulator.txt       | 163 ---------------------
>  .../bindings/regulator/samsung,s5m8767.txt         | 145 ++++++++++++++++++
>  MAINTAINERS                                        |   2 +-
>  4 files changed, 149 insertions(+), 165 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt
>  create mode 100644 Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
> 
> diff --git a/Documentation/devicetree/bindings/mfd/samsung,sec-core.txt b/Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
> index ef0166d0f643..4aeb95c82304 100644
> --- a/Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
> +++ b/Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
> @@ -14,6 +14,7 @@ addressed by the host system using different I2C slave addresses.
>  This document describes bindings for main device node. Optional sub-blocks
>  must be a sub-nodes to it. Bindings for them can be found in:
>   - bindings/regulator/samsung,s2mps11.txt
> + - bindings/regulator/samsung,s5m8767.txt
>   - bindings/clock/samsung,s2mps11.txt
>  
>  
> @@ -23,7 +24,8 @@ Required properties:
>  	- "samsung,s2mps13-pmic",
>  	- "samsung,s2mps14-pmic",
>  	- "samsung,s2mps15-pmic",
> -	- "samsung,s2mpu02-pmic".
> +	- "samsung,s2mpu02-pmic",
> +	- "samsung,s5m8767-pmic".
>   - reg: Specifies the I2C slave address of the pmic block. It should be 0x66.
>  
>  Optional properties:
> diff --git a/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt b/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt
> deleted file mode 100644
> index 20191315e444..000000000000
> --- a/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt
> +++ /dev/null
> @@ -1,163 +0,0 @@
> -* Samsung S5M8767 Voltage and Current Regulator
> -
> -The Samsung S5M8767 is a multi-function device which includes voltage and
> -current regulators, rtc, charger controller and other sub-blocks. It is
> -interfaced to the host controller using a i2c interface. Each sub-block is
> -addressed by the host system using different i2c slave address. This document
> -describes the bindings for 'pmic' sub-block of s5m8767.
> -
> -Required properties:
> -- compatible: Should be "samsung,s5m8767-pmic".
> -- reg: Specifies the i2c slave address of the pmic block. It should be 0x66.
> -
> -- s5m8767,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
> -  units for buck2 when changing voltage using gpio dvs. Refer to [1] below
> -  for additional information.
> -
> -- s5m8767,pmic-buck3-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
> -  units for buck3 when changing voltage using gpio dvs. Refer to [1] below
> -  for additional information.
> -
> -- s5m8767,pmic-buck4-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
> -  units for buck4 when changing voltage using gpio dvs. Refer to [1] below
> -  for additional information.
> -
> -- s5m8767,pmic-buck-ds-gpios: GPIO specifiers for three host gpio's used
> -  for selecting GPIO DVS lines. It is one-to-one mapped to dvs gpio lines.
> -
> -[1] If none of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
> -    property is specified, the 's5m8767,pmic-buck[2/3/4]-dvs-voltage'
> -    property should specify atleast one voltage level (which would be a
> -    safe operating voltage).
> -
> -    If either of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
> -    property is specified, then all the eight voltage values for the
> -    's5m8767,pmic-buck[2/3/4]-dvs-voltage' should be specified.
> -
> -Optional properties:
> -- interrupt-parent: Specifies the phandle of the interrupt controller to which
> -  the interrupts from s5m8767 are delivered to.
> -- interrupts: Interrupt specifiers for two interrupt sources.
> -  - First interrupt specifier is for 'irq1' interrupt.
> -  - Second interrupt specifier is for 'alert' interrupt.
> -- s5m8767,pmic-buck2-uses-gpio-dvs: 'buck2' can be controlled by gpio dvs.
> -- s5m8767,pmic-buck3-uses-gpio-dvs: 'buck3' can be controlled by gpio dvs.
> -- s5m8767,pmic-buck4-uses-gpio-dvs: 'buck4' can be controlled by gpio dvs.
> -
> -Additional properties required if either of the optional properties are used:
> -
> -- s5m8767,pmic-buck234-default-dvs-idx: Default voltage setting selected from
> -  the possible 8 options selectable by the dvs gpios. The value of this
> -  property should be between 0 and 7. If not specified or if out of range, the
> -  default value of this property is set to 0.
> -
> -- s5m8767,pmic-buck-dvs-gpios: GPIO specifiers for three host gpio's used
> -  for dvs. The format of the gpio specifier depends in the gpio controller.
> -
> -Regulators: The regulators of s5m8767 that have to be instantiated should be
> -included in a sub-node named 'regulators'. Regulator nodes included in this
> -sub-node should be of the format as listed below.
> -
> -	regulator_name {
> -		ldo1_reg: LDO1 {
> -			regulator-name = "VDD_ALIVE_1.0V";
> -			regulator-min-microvolt = <1100000>;
> -			regulator-max-microvolt = <1100000>;
> -			regulator-always-on;
> -			regulator-boot-on;
> -			op_mode = <1>; /* Normal Mode */
> -		};
> -	};
> -The above regulator entries are defined in regulator bindings documentation
> -except these properties:
> -	- op_mode: describes the different operating modes of the LDO's with
> -		power mode change in SOC. The different possible values are,
> -		0 - always off mode
> -		1 - on in normal mode
> -		2 - low power mode
> -		3 - suspend mode
> -	- s5m8767,pmic-ext-control-gpios: (optional) GPIO specifier for one
> -		GPIO controlling this regulator (enable/disable); This is
> -		valid only for buck9.
> -
> -The following are the names of the regulators that the s5m8767 pmic block
> -supports. Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number
> -as per the datasheet of s5m8767.
> -
> -	- LDOn
> -		  - valid values for n are 1 to 28
> -		  - Example: LDO1, LDO2, LDO28
> -	- BUCKn
> -		  - valid values for n are 1 to 9.
> -		  - Example: BUCK1, BUCK2, BUCK9
> -
> -The bindings inside the regulator nodes use the standard regulator bindings
> -which are documented elsewhere.
> -
> -Example:
> -
> -	s5m8767_pmic@66 {
> -		compatible = "samsung,s5m8767-pmic";
> -		reg = <0x66>;
> -
> -		s5m8767,pmic-buck2-uses-gpio-dvs;
> -		s5m8767,pmic-buck3-uses-gpio-dvs;
> -		s5m8767,pmic-buck4-uses-gpio-dvs;
> -
> -		s5m8767,pmic-buck-default-dvs-idx = <0>;
> -
> -		s5m8767,pmic-buck-dvs-gpios = <&gpx0 0 0>, /* DVS1 */
> -						 <&gpx0 1 0>, /* DVS2 */
> -						 <&gpx0 2 0>; /* DVS3 */
> -
> -		s5m8767,pmic-buck-ds-gpios = <&gpx2 3 0>, /* SET1 */
> -						<&gpx2 4 0>, /* SET2 */
> -						<&gpx2 5 0>; /* SET3 */
> -
> -		s5m8767,pmic-buck2-dvs-voltage = <1350000>, <1300000>,
> -						 <1250000>, <1200000>,
> -						 <1150000>, <1100000>,
> -						 <1000000>, <950000>;
> -
> -		s5m8767,pmic-buck3-dvs-voltage = <1100000>, <1100000>,
> -						 <1100000>, <1100000>,
> -						 <1000000>, <1000000>,
> -						 <1000000>, <1000000>;
> -
> -		s5m8767,pmic-buck4-dvs-voltage = <1200000>, <1200000>,
> -						 <1200000>, <1200000>,
> -						 <1200000>, <1200000>,
> -						 <1200000>, <1200000>;
> -
> -		regulators {
> -			ldo1_reg: LDO1 {
> -				regulator-name = "VDD_ABB_3.3V";
> -				regulator-min-microvolt = <3300000>;
> -				regulator-max-microvolt = <3300000>;
> -				op_mode = <1>; /* Normal Mode */
> -			};
> -
> -			ldo2_reg: LDO2 {
> -				regulator-name = "VDD_ALIVE_1.1V";
> -				regulator-min-microvolt = <1100000>;
> -				regulator-max-microvolt = <1100000>;
> -				regulator-always-on;
> -			};
> -
> -			buck1_reg: BUCK1 {
> -				regulator-name = "VDD_MIF_1.2V";
> -				regulator-min-microvolt = <950000>;
> -				regulator-max-microvolt = <1350000>;
> -				regulator-always-on;
> -				regulator-boot-on;
> -			};
> -
> -			vemmc_reg: BUCK9 {
> -				regulator-name = "VMEM_VDD_2.8V";
> -				regulator-min-microvolt = <2800000>;
> -				regulator-max-microvolt = <2800000>;
> -				op_mode = <3>; /* Standby Mode */
> -				s5m8767,pmic-ext-control-gpios = <&gpk0 2 0>;
> -			};
> -		};
> -	};
> diff --git a/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt b/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
> new file mode 100644
> index 000000000000..093edda0c8df
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
> @@ -0,0 +1,145 @@
> +Binding for Samsung S5M8767 regulator block
> +===========================================
> +
> +This is a part of device tree bindings for S5M family multi-function devices.
> +More information can be found in bindings/mfd/sec-core.txt file.
> +
> +The S5M8767 device provide buck and LDO regulators.
> +
> +To register these with regulator framework instantiate under main device node
> +a sub-node named "regulators" with more sub-nodes for each regulator using the
> +common regulator binding documented in:
> + - Documentation/devicetree/bindings/regulator/regulator.txt
> +
> +
> +Required properties of the main device node (the parent!):
> + - s5m8767,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
> +   units for buck2 when changing voltage using gpio dvs. Refer to [1] below
> +   for additional information.
> +
> + - s5m8767,pmic-buck3-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
> +   units for buck3 when changing voltage using gpio dvs. Refer to [1] below
> +   for additional information.
> +
> + - s5m8767,pmic-buck4-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
> +   units for buck4 when changing voltage using gpio dvs. Refer to [1] below
> +   for additional information.
> +
> + - s5m8767,pmic-buck-ds-gpios: GPIO specifiers for three host gpio's used
> +   for selecting GPIO DVS lines. It is one-to-one mapped to dvs gpio lines.
> +
> + [1] If none of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
> +     property is specified, the 's5m8767,pmic-buck[2/3/4]-dvs-voltage'
> +     property should specify atleast one voltage level (which would be a
> +     safe operating voltage).
> +
> +     If either of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
> +     property is specified, then all the eight voltage values for the
> +     's5m8767,pmic-buck[2/3/4]-dvs-voltage' should be specified.
> +
> +Optional properties of the main device node (the parent!):
> + - s5m8767,pmic-buck2-uses-gpio-dvs: 'buck2' can be controlled by gpio dvs.
> + - s5m8767,pmic-buck3-uses-gpio-dvs: 'buck3' can be controlled by gpio dvs.
> + - s5m8767,pmic-buck4-uses-gpio-dvs: 'buck4' can be controlled by gpio dvs.
> +
> +Additional properties required if either of the optional properties are used:
> +
> + - s5m8767,pmic-buck234-default-dvs-idx: Default voltage setting selected from
> +   the possible 8 options selectable by the dvs gpios. The value of this
> +   property should be between 0 and 7. If not specified or if out of range, the
> +   default value of this property is set to 0.
> +
> + - s5m8767,pmic-buck-dvs-gpios: GPIO specifiers for three host gpio's used
> +   for dvs. The format of the gpio specifier depends in the gpio controller.
> +
> +
> +Names of regulators supported by S5M8767 device:
> +	- LDOn
> +		  - valid values for n are 1 to 28
> +		  - Example: LDO1, LDO2, LDO28
> +	- BUCKn
> +		  - valid values for n are 1 to 9.
> +		  - Example: BUCK1, BUCK2, BUCK9
> +Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number
> +as per the datasheet of device.
> +
> +
> +Optional properties of the nodes under "regulators" sub-node:
> + - op_mode: describes the different operating modes of the LDO's with
> +            power mode change in SOC. The different possible values are,
> +             0 - always off mode
> +             1 - on in normal mode
> +             2 - low power mode
> +             3 - suspend mode
> + - s5m8767,pmic-ext-control-gpios: (optional) GPIO specifier for one
> +                                   GPIO controlling this regulator
> +                                   (enable/disable); This is valid only
> +                                   for buck9.
> +
> +Example:
> +
> +	s5m8767_pmic@66 {
> +		compatible = "samsung,s5m8767-pmic";
> +		reg = <0x66>;
> +
> +		s5m8767,pmic-buck2-uses-gpio-dvs;
> +		s5m8767,pmic-buck3-uses-gpio-dvs;
> +		s5m8767,pmic-buck4-uses-gpio-dvs;
> +
> +		s5m8767,pmic-buck-default-dvs-idx = <0>;
> +
> +		s5m8767,pmic-buck-dvs-gpios = <&gpx0 0 0>, /* DVS1 */
> +						 <&gpx0 1 0>, /* DVS2 */
> +						 <&gpx0 2 0>; /* DVS3 */
> +
> +		s5m8767,pmic-buck-ds-gpios = <&gpx2 3 0>, /* SET1 */
> +						<&gpx2 4 0>, /* SET2 */
> +						<&gpx2 5 0>; /* SET3 */
> +
> +		s5m8767,pmic-buck2-dvs-voltage = <1350000>, <1300000>,
> +						 <1250000>, <1200000>,
> +						 <1150000>, <1100000>,
> +						 <1000000>, <950000>;
> +
> +		s5m8767,pmic-buck3-dvs-voltage = <1100000>, <1100000>,
> +						 <1100000>, <1100000>,
> +						 <1000000>, <1000000>,
> +						 <1000000>, <1000000>;
> +
> +		s5m8767,pmic-buck4-dvs-voltage = <1200000>, <1200000>,
> +						 <1200000>, <1200000>,
> +						 <1200000>, <1200000>,
> +						 <1200000>, <1200000>;
> +
> +		regulators {
> +			ldo1_reg: LDO1 {
> +				regulator-name = "VDD_ABB_3.3V";
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				op_mode = <1>; /* Normal Mode */
> +			};
> +
> +			ldo2_reg: LDO2 {
> +				regulator-name = "VDD_ALIVE_1.1V";
> +				regulator-min-microvolt = <1100000>;
> +				regulator-max-microvolt = <1100000>;
> +				regulator-always-on;
> +			};
> +
> +			buck1_reg: BUCK1 {
> +				regulator-name = "VDD_MIF_1.2V";
> +				regulator-min-microvolt = <950000>;
> +				regulator-max-microvolt = <1350000>;
> +				regulator-always-on;
> +				regulator-boot-on;
> +			};
> +
> +			vemmc_reg: BUCK9 {
> +				regulator-name = "VMEM_VDD_2.8V";
> +				regulator-min-microvolt = <2800000>;
> +				regulator-max-microvolt = <2800000>;
> +				op_mode = <3>; /* Standby Mode */
> +				s5m8767,pmic-ext-control-gpios = <&gpk0 2 0>;
> +			};
> +		};
> +	};
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 137284e37250..7e1db5746ee4 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -9233,9 +9233,9 @@ F:	drivers/regulator/s5m*.c
>  F:	drivers/clk/clk-s2mps11.c
>  F:	drivers/rtc/rtc-s5m.c
>  F:	include/linux/mfd/samsung/
> -F:	Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt
>  F:	Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
>  F:	Documentation/devicetree/bindings/regulator/samsung,s2m*.txt
> +F:	Documentation/devicetree/bindings/regulator/samsung,s5m*.txt
>  F:	Documentation/devicetree/bindings/clock/samsung,s2mps11.txt
>  
>  SAMSUNG S5P/EXYNOS4 SOC SERIES CAMERA SUBSYSTEM DRIVERS

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