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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> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Krzysztof Kozlowski
Lee Jones
parent
a13c7c51fd
commit
27383ca93b
@ -14,6 +14,7 @@ addressed by the host system using different I2C slave addresses.
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This document describes bindings for main device node. Optional sub-blocks
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must be a sub-nodes to it. Bindings for them can be found in:
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- bindings/regulator/samsung,s2mps11.txt
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- bindings/regulator/samsung,s5m8767.txt
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- bindings/clock/samsung,s2mps11.txt
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@ -23,7 +24,8 @@ Required properties:
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- "samsung,s2mps13-pmic",
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- "samsung,s2mps14-pmic",
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- "samsung,s2mps15-pmic",
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- "samsung,s2mpu02-pmic".
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- "samsung,s2mpu02-pmic",
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- "samsung,s5m8767-pmic".
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- reg: Specifies the I2C slave address of the pmic block. It should be 0x66.
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Optional properties:
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@ -1,163 +0,0 @@
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* Samsung S5M8767 Voltage and Current Regulator
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The Samsung S5M8767 is a multi-function device which includes voltage and
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current regulators, rtc, charger controller and other sub-blocks. It is
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interfaced to the host controller using a i2c interface. Each sub-block is
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addressed by the host system using different i2c slave address. This document
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describes the bindings for 'pmic' sub-block of s5m8767.
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Required properties:
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- compatible: Should be "samsung,s5m8767-pmic".
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- reg: Specifies the i2c slave address of the pmic block. It should be 0x66.
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- s5m8767,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
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units for buck2 when changing voltage using gpio dvs. Refer to [1] below
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for additional information.
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- s5m8767,pmic-buck3-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
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units for buck3 when changing voltage using gpio dvs. Refer to [1] below
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for additional information.
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- s5m8767,pmic-buck4-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
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units for buck4 when changing voltage using gpio dvs. Refer to [1] below
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for additional information.
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- s5m8767,pmic-buck-ds-gpios: GPIO specifiers for three host gpio's used
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for selecting GPIO DVS lines. It is one-to-one mapped to dvs gpio lines.
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[1] If none of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
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property is specified, the 's5m8767,pmic-buck[2/3/4]-dvs-voltage'
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property should specify atleast one voltage level (which would be a
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safe operating voltage).
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If either of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
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property is specified, then all the eight voltage values for the
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's5m8767,pmic-buck[2/3/4]-dvs-voltage' should be specified.
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Optional properties:
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- interrupt-parent: Specifies the phandle of the interrupt controller to which
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the interrupts from s5m8767 are delivered to.
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- interrupts: Interrupt specifiers for two interrupt sources.
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- First interrupt specifier is for 'irq1' interrupt.
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- Second interrupt specifier is for 'alert' interrupt.
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- s5m8767,pmic-buck2-uses-gpio-dvs: 'buck2' can be controlled by gpio dvs.
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- s5m8767,pmic-buck3-uses-gpio-dvs: 'buck3' can be controlled by gpio dvs.
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- s5m8767,pmic-buck4-uses-gpio-dvs: 'buck4' can be controlled by gpio dvs.
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Additional properties required if either of the optional properties are used:
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- s5m8767,pmic-buck234-default-dvs-idx: Default voltage setting selected from
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the possible 8 options selectable by the dvs gpios. The value of this
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property should be between 0 and 7. If not specified or if out of range, the
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default value of this property is set to 0.
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- s5m8767,pmic-buck-dvs-gpios: GPIO specifiers for three host gpio's used
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for dvs. The format of the gpio specifier depends in the gpio controller.
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Regulators: The regulators of s5m8767 that have to be instantiated should be
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included in a sub-node named 'regulators'. Regulator nodes included in this
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sub-node should be of the format as listed below.
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regulator_name {
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ldo1_reg: LDO1 {
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regulator-name = "VDD_ALIVE_1.0V";
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regulator-min-microvolt = <1100000>;
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regulator-max-microvolt = <1100000>;
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regulator-always-on;
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regulator-boot-on;
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op_mode = <1>; /* Normal Mode */
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};
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};
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The above regulator entries are defined in regulator bindings documentation
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except these properties:
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- op_mode: describes the different operating modes of the LDO's with
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power mode change in SOC. The different possible values are,
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0 - always off mode
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1 - on in normal mode
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2 - low power mode
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3 - suspend mode
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- s5m8767,pmic-ext-control-gpios: (optional) GPIO specifier for one
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GPIO controlling this regulator (enable/disable); This is
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valid only for buck9.
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The following are the names of the regulators that the s5m8767 pmic block
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supports. Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number
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as per the datasheet of s5m8767.
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- LDOn
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- valid values for n are 1 to 28
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- Example: LDO1, LDO2, LDO28
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- BUCKn
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- valid values for n are 1 to 9.
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- Example: BUCK1, BUCK2, BUCK9
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The bindings inside the regulator nodes use the standard regulator bindings
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which are documented elsewhere.
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Example:
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s5m8767_pmic@66 {
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compatible = "samsung,s5m8767-pmic";
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reg = <0x66>;
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s5m8767,pmic-buck2-uses-gpio-dvs;
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s5m8767,pmic-buck3-uses-gpio-dvs;
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s5m8767,pmic-buck4-uses-gpio-dvs;
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s5m8767,pmic-buck-default-dvs-idx = <0>;
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s5m8767,pmic-buck-dvs-gpios = <&gpx0 0 0>, /* DVS1 */
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<&gpx0 1 0>, /* DVS2 */
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<&gpx0 2 0>; /* DVS3 */
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s5m8767,pmic-buck-ds-gpios = <&gpx2 3 0>, /* SET1 */
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<&gpx2 4 0>, /* SET2 */
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<&gpx2 5 0>; /* SET3 */
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s5m8767,pmic-buck2-dvs-voltage = <1350000>, <1300000>,
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<1250000>, <1200000>,
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<1150000>, <1100000>,
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<1000000>, <950000>;
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s5m8767,pmic-buck3-dvs-voltage = <1100000>, <1100000>,
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<1100000>, <1100000>,
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<1000000>, <1000000>,
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<1000000>, <1000000>;
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s5m8767,pmic-buck4-dvs-voltage = <1200000>, <1200000>,
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<1200000>, <1200000>,
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<1200000>, <1200000>,
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<1200000>, <1200000>;
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regulators {
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ldo1_reg: LDO1 {
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regulator-name = "VDD_ABB_3.3V";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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op_mode = <1>; /* Normal Mode */
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};
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ldo2_reg: LDO2 {
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regulator-name = "VDD_ALIVE_1.1V";
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regulator-min-microvolt = <1100000>;
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regulator-max-microvolt = <1100000>;
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regulator-always-on;
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};
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buck1_reg: BUCK1 {
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regulator-name = "VDD_MIF_1.2V";
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regulator-min-microvolt = <950000>;
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regulator-max-microvolt = <1350000>;
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regulator-always-on;
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regulator-boot-on;
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};
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vemmc_reg: BUCK9 {
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regulator-name = "VMEM_VDD_2.8V";
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regulator-min-microvolt = <2800000>;
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regulator-max-microvolt = <2800000>;
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op_mode = <3>; /* Standby Mode */
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s5m8767,pmic-ext-control-gpios = <&gpk0 2 0>;
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};
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};
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};
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145
Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
Normal file
145
Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
Normal file
@ -0,0 +1,145 @@
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Binding for Samsung S5M8767 regulator block
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===========================================
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This is a part of device tree bindings for S5M family multi-function devices.
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More information can be found in bindings/mfd/sec-core.txt file.
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The S5M8767 device provide buck and LDO regulators.
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To register these with regulator framework instantiate under main device node
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a sub-node named "regulators" with more sub-nodes for each regulator using the
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common regulator binding documented in:
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- Documentation/devicetree/bindings/regulator/regulator.txt
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Required properties of the main device node (the parent!):
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- s5m8767,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
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units for buck2 when changing voltage using gpio dvs. Refer to [1] below
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for additional information.
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- s5m8767,pmic-buck3-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
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units for buck3 when changing voltage using gpio dvs. Refer to [1] below
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for additional information.
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- s5m8767,pmic-buck4-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
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units for buck4 when changing voltage using gpio dvs. Refer to [1] below
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for additional information.
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- s5m8767,pmic-buck-ds-gpios: GPIO specifiers for three host gpio's used
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for selecting GPIO DVS lines. It is one-to-one mapped to dvs gpio lines.
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[1] If none of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
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property is specified, the 's5m8767,pmic-buck[2/3/4]-dvs-voltage'
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property should specify atleast one voltage level (which would be a
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safe operating voltage).
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If either of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
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property is specified, then all the eight voltage values for the
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's5m8767,pmic-buck[2/3/4]-dvs-voltage' should be specified.
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Optional properties of the main device node (the parent!):
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- s5m8767,pmic-buck2-uses-gpio-dvs: 'buck2' can be controlled by gpio dvs.
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- s5m8767,pmic-buck3-uses-gpio-dvs: 'buck3' can be controlled by gpio dvs.
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- s5m8767,pmic-buck4-uses-gpio-dvs: 'buck4' can be controlled by gpio dvs.
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Additional properties required if either of the optional properties are used:
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- s5m8767,pmic-buck234-default-dvs-idx: Default voltage setting selected from
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the possible 8 options selectable by the dvs gpios. The value of this
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property should be between 0 and 7. If not specified or if out of range, the
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default value of this property is set to 0.
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- s5m8767,pmic-buck-dvs-gpios: GPIO specifiers for three host gpio's used
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for dvs. The format of the gpio specifier depends in the gpio controller.
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Names of regulators supported by S5M8767 device:
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- LDOn
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- valid values for n are 1 to 28
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- Example: LDO1, LDO2, LDO28
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- BUCKn
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- valid values for n are 1 to 9.
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- Example: BUCK1, BUCK2, BUCK9
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Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number
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as per the datasheet of device.
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Optional properties of the nodes under "regulators" sub-node:
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- op_mode: describes the different operating modes of the LDO's with
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power mode change in SOC. The different possible values are,
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0 - always off mode
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1 - on in normal mode
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2 - low power mode
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3 - suspend mode
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- s5m8767,pmic-ext-control-gpios: (optional) GPIO specifier for one
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GPIO controlling this regulator
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(enable/disable); This is valid only
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for buck9.
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Example:
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s5m8767_pmic@66 {
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compatible = "samsung,s5m8767-pmic";
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reg = <0x66>;
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s5m8767,pmic-buck2-uses-gpio-dvs;
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s5m8767,pmic-buck3-uses-gpio-dvs;
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s5m8767,pmic-buck4-uses-gpio-dvs;
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s5m8767,pmic-buck-default-dvs-idx = <0>;
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s5m8767,pmic-buck-dvs-gpios = <&gpx0 0 0>, /* DVS1 */
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<&gpx0 1 0>, /* DVS2 */
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<&gpx0 2 0>; /* DVS3 */
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s5m8767,pmic-buck-ds-gpios = <&gpx2 3 0>, /* SET1 */
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<&gpx2 4 0>, /* SET2 */
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<&gpx2 5 0>; /* SET3 */
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s5m8767,pmic-buck2-dvs-voltage = <1350000>, <1300000>,
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<1250000>, <1200000>,
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<1150000>, <1100000>,
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<1000000>, <950000>;
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s5m8767,pmic-buck3-dvs-voltage = <1100000>, <1100000>,
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<1100000>, <1100000>,
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<1000000>, <1000000>,
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<1000000>, <1000000>;
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s5m8767,pmic-buck4-dvs-voltage = <1200000>, <1200000>,
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<1200000>, <1200000>,
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<1200000>, <1200000>,
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<1200000>, <1200000>;
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regulators {
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ldo1_reg: LDO1 {
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regulator-name = "VDD_ABB_3.3V";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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op_mode = <1>; /* Normal Mode */
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};
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ldo2_reg: LDO2 {
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regulator-name = "VDD_ALIVE_1.1V";
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regulator-min-microvolt = <1100000>;
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regulator-max-microvolt = <1100000>;
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regulator-always-on;
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};
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buck1_reg: BUCK1 {
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regulator-name = "VDD_MIF_1.2V";
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regulator-min-microvolt = <950000>;
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regulator-max-microvolt = <1350000>;
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regulator-always-on;
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regulator-boot-on;
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};
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vemmc_reg: BUCK9 {
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regulator-name = "VMEM_VDD_2.8V";
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regulator-min-microvolt = <2800000>;
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regulator-max-microvolt = <2800000>;
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op_mode = <3>; /* Standby Mode */
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s5m8767,pmic-ext-control-gpios = <&gpk0 2 0>;
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};
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};
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};
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@ -9223,9 +9223,9 @@ F: drivers/regulator/s5m*.c
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F: drivers/clk/clk-s2mps11.c
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F: drivers/rtc/rtc-s5m.c
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F: include/linux/mfd/samsung/
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F: Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt
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F: Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
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F: Documentation/devicetree/bindings/regulator/samsung,s2m*.txt
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F: Documentation/devicetree/bindings/regulator/samsung,s5m*.txt
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F: Documentation/devicetree/bindings/clock/samsung,s2mps11.txt
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SAMSUNG S5P/EXYNOS4 SOC SERIES CAMERA SUBSYSTEM DRIVERS
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