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dt-bindings: regulator/mfd: Reorganize S2MPA01 bindings
The mfd/s2mpa01.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,s2mpa01.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
27383ca93b
commit
5d1d147f04
@ -1,90 +0,0 @@
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* Samsung S2MPA01 Voltage and Current Regulator
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The Samsung S2MPA01 is a multi-function device which includes high
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efficiency buck converters including Dual-Phase buck converter, various LDOs,
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and an RTC. It is interfaced to the host controller using an I2C interface.
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Each sub-block is addressed by the host system using different I2C slave
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addresses.
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Required properties:
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- compatible: Should be "samsung,s2mpa01-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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- interrupt-parent: Specifies the phandle of the interrupt controller to which
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the interrupts from s2mpa01 are delivered to.
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- interrupts: An interrupt specifier for the sole interrupt generated by the
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device.
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Optional nodes:
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- regulators: The regulators of s2mpa01 that have to be instantiated should be
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included in a sub-node named 'regulators'. Regulator nodes and constraints
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included in this sub-node use the standard regulator bindings which are
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documented elsewhere.
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Properties for BUCK regulator nodes:
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- regulator-ramp-delay: ramp delay in uV/us. May be 6250, 12500
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(default), 25000, or 50000. May be 0 for disabling the ramp delay on
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BUCK{1,2,3,4}.
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In the absence of the regulator-ramp-delay property, the default ramp
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delay will be used.
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NOTE: Some BUCKs share the ramp rate setting i.e. same ramp value will be set
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for a particular group of BUCKs. So provide same regulator-ramp-delay=<value>.
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The following BUCKs share ramp settings:
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* 1 and 6
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* 2 and 4
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* 8, 9, and 10
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The following are the names of the regulators that the s2mpa01 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 s2mpa01.
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- LDOn
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- valid values for n are 1 to 26
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- Example: LDO1, LD02, LDO26
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- BUCKn
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- valid values for n are 1 to 10.
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- Example: BUCK1, BUCK2, BUCK9
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Example:
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s2mpa01_pmic@66 {
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compatible = "samsung,s2mpa01-pmic";
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reg = <0x66>;
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regulators {
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ldo1_reg: LDO1 {
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regulator-name = "VDD_ALIVE";
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regulator-min-microvolt = <1000000>;
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regulator-max-microvolt = <1000000>;
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};
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ldo2_reg: LDO2 {
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regulator-name = "VDDQ_MMC2";
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regulator-min-microvolt = <2800000>;
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regulator-max-microvolt = <2800000>;
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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";
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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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buck2_reg: BUCK2 {
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regulator-name = "vdd_arm";
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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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regulator-ramp-delay = <50000>;
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};
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};
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};
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@ -4,7 +4,7 @@ Binding for Samsung S2M and S5M family multi-function device
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This is a part of device tree bindings for S2M and S5M family multi-function
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devices.
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The Samsung S2MPS11/13/14/15, S2MPU02 and S5M8767 is a family
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The Samsung S2MPA01, S2MPS11/13/14/15, S2MPU02 and S5M8767 is a family
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of multi-function devices which include voltage and current regulators, RTC,
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charger controller, clock outputs and other sub-blocks. It is interfaced
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to the host controller using an I2C interface. Each sub-block is usually
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@ -13,6 +13,7 @@ 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,s2mpa01.txt
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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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@ -20,6 +21,7 @@ must be a sub-nodes to it. Bindings for them can be found in:
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Required properties:
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- compatible: Should be one of the following
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- "samsung,s2mpa01-pmic",
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- "samsung,s2mps11-pmic",
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- "samsung,s2mps13-pmic",
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- "samsung,s2mps14-pmic",
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@ -0,0 +1,79 @@
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Binding for Samsung S2MPA01 regulator block
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===========================================
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This is a part of device tree bindings for S2M 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 S2MPA01 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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Names of regulators supported by S2MPA01 device:
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- LDOn
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- valid values for n are 1 to 26
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- Example: LDO1, LD02, LDO26
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- BUCKn
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- valid values for n are 1 to 10.
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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 buck regulator nodes under "regulators" sub-node:
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- regulator-ramp-delay: ramp delay in uV/us. May be 6250, 12500
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(default), 25000, or 50000. May be 0 for disabling the ramp delay on
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BUCK{1,2,3,4}.
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In the absence of the regulator-ramp-delay property, the default ramp
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delay will be used.
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Note: Some bucks share the ramp rate setting i.e. same ramp value
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will be set for a particular group of bucks so provide the same
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regulator-ramp-delay value for them.
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Groups sharing ramp rate:
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- buck{1,6},
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- buck{2,4},
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- buck{8,9,10}.
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Example:
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s2mpa01_pmic@66 {
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compatible = "samsung,s2mpa01-pmic";
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reg = <0x66>;
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regulators {
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ldo1_reg: LDO1 {
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regulator-name = "VDD_ALIVE";
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regulator-min-microvolt = <1000000>;
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regulator-max-microvolt = <1000000>;
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};
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ldo2_reg: LDO2 {
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regulator-name = "VDDQ_MMC2";
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regulator-min-microvolt = <2800000>;
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regulator-max-microvolt = <2800000>;
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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";
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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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buck2_reg: BUCK2 {
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regulator-name = "vdd_arm";
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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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regulator-ramp-delay = <50000>;
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};
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};
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};
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