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Add support to bind the regulators/child nodes with the pmic. Also adds the pmic i2c based read/write functions to access pmic registers. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
78 lines
1.9 KiB
Text
78 lines
1.9 KiB
Text
Texas Instruments, TPS65911 PMIC
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This device uses two drivers:
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- drivers/power/pmic/tps65910.c (for parent device)
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- drivers/power/regulator/tps65911_regulator.c (for child regulators)
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This chapter describes the binding info for the PMIC driver and regulators.
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Required properties for PMIC:
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- compatible: "ti,tps65911"
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- reg: 0x2d
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With those two properties, the pmic device can be used for read/write only.
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To bind each regulator, the optional regulators subnode should exists.
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Optional subnode:
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- name: regulators (subnode list of each device's regulator)
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Regulators subnode contains set on supported regulators.
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Required properties:
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- regulator-name: used for regulator uclass platform data '.name',
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List of supported regulator nodes names for tps65911:
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- vdd1, vdd2, vddctrl, vddio
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- ldo1, ldo2, ldo3, ldo4, ldo5, ldo6, ldo7, ldo8
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vddio in datasheet is referred as vio, but for reduction of code and
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unification of smps regulators it is named vddio.
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Optional:
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- regulator-min-microvolt: minimum allowed Voltage to set
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- regulator-max-microvolt: minimum allowed Voltage to set
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- regulator-always-on: regulator should be never disabled
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- regulator-boot-on: regulator should be enabled by the bootloader
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Example:
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tps65911@2d {
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compatible = "ti,tps65911";
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reg = <0x2d>;
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regulators {
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vdd1 {
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regulator-name = "vdd_1v2_backlight";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1200000>;
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regulator-always-on;
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regulator-boot-on;
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};
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...
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vddio {
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regulator-name = "vdd_1v8_gen";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-always-on;
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regulator-boot-on;
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};
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ldo1 {
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regulator-name = "vdd_emmc_core";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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regulator-boot-on;
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};
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...
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ldo8 {
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regulator-name = "vdd_ddr_hs";
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regulator-min-microvolt = <1000000>;
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regulator-max-microvolt = <1000000>;
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};
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};
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};
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