From: Chris Zhong Date: Wed, 3 Sep 2014 13:51:43 +0000 (+0800) Subject: mfd: dt-bindings: Add RK808 device tree bindings document X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a53b9a97ac33fa74d136c2e3fd0d76ba7872a1d0;p=openwrt%2Fstaging%2Fblogic.git mfd: dt-bindings: Add RK808 device tree bindings document Add device tree bindings documentation and a header file for rockchip's RK808 pmic. Signed-off-by: Doug Anderson Signed-off-by: Chris Zhong Signed-off-by: Zhang Qing Tested-by: Heiko Signed-off-by: Lee Jones --- diff --git a/Documentation/devicetree/bindings/mfd/rk808.txt b/Documentation/devicetree/bindings/mfd/rk808.txt new file mode 100644 index 000000000000..9e6e2592e5c8 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/rk808.txt @@ -0,0 +1,177 @@ +RK808 Power Management Integrated Circuit + +Required properties: +- compatible: "rockchip,rk808" +- reg: I2C slave address +- interrupt-parent: The parent interrupt controller. +- interrupts: the interrupt outputs of the controller. +- #clock-cells: from common clock binding; shall be set to 1 (multiple clock + outputs). See for clock IDs. + +Optional properties: +- clock-output-names: From common clock binding to override the + default output clock name +- rockchip,system-power-controller: Telling whether or not this pmic is controlling + the system power. +- vcc1-supply: The input supply for DCDC_REG1 +- vcc2-supply: The input supply for DCDC_REG2 +- vcc3-supply: The input supply for DCDC_REG3 +- vcc4-supply: The input supply for DCDC_REG4 +- vcc6-supply: The input supply for LDO_REG1 and LDO_REG2 +- vcc7-supply: The input supply for LDO_REG3 and LDO_REG7 +- vcc8-supply: The input supply for SWITCH_REG1 +- vcc9-supply: The input supply for LDO_REG4 and LDO_REG5 +- vcc10-supply: The input supply for LDO_REG6 +- vcc11-supply: The input supply for LDO_REG8 +- vcc12-supply: The input supply for SWITCH_REG2 + +Regulators: All the regulators of RK808 to be instantiated shall be +listed in a child node named 'regulators'. Each regulator is represented +by a child node of the 'regulators' node. + + regulator-name { + /* standard regulator bindings here */ + }; + +Following regulators of the RK808 PMIC block are supported. Note that +the 'n' in regulator name, as in DCDC_REGn or LDOn, represents the DCDC or LDO +number as described in RK808 datasheet. + + - DCDC_REGn + - valid values for n are 1 to 4. + - LDO_REGn + - valid values for n are 1 to 8. + - SWITCH_REGn + - valid values for n are 1 to 2 + +Standard regulator bindings are used inside regulator subnodes. Check + Documentation/devicetree/bindings/regulator/regulator.txt +for more details + +Example: + rk808: pmic@1b { + compatible = "rockchip,rk808"; + clock-output-names = "xin32k", "rk808-clkout2"; + interrupt-parent = <&gpio0>; + interrupts = <4 IRQ_TYPE_LEVEL_LOW>; + pinctrl-names = "default"; + pinctrl-0 = <&pmic_int>; + reg = <0x1b>; + rockchip,system-power-controller; + wakeup-source; + #clock-cells = <1>; + + vcc8-supply = <&vcc_18>; + vcc9-supply = <&vcc_io>; + vcc10-supply = <&vcc_io>; + vcc12-supply = <&vcc_io>; + vddio-supply = <&vccio_pmu>; + + regulators { + vdd_cpu: DCDC_REG1 { + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <750000>; + regulator-max-microvolt = <1300000>; + regulator-name = "vdd_arm"; + }; + + vdd_gpu: DCDC_REG2 { + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <850000>; + regulator-max-microvolt = <1250000>; + regulator-name = "vdd_gpu"; + }; + + vcc_ddr: DCDC_REG3 { + regulator-always-on; + regulator-boot-on; + regulator-name = "vcc_ddr"; + }; + + vcc_io: DCDC_REG4 { + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-name = "vcc_io"; + }; + + vccio_pmu: LDO_REG1 { + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-name = "vccio_pmu"; + }; + + vcc_tp: LDO_REG2 { + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-name = "vcc_tp"; + }; + + vdd_10: LDO_REG3 { + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-name = "vdd_10"; + }; + + vcc18_lcd: LDO_REG4 { + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-name = "vcc18_lcd"; + }; + + vccio_sd: LDO_REG5 { + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-name = "vccio_sd"; + }; + + vdd10_lcd: LDO_REG6 { + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-name = "vdd10_lcd"; + }; + + vcc_18: LDO_REG7 { + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-name = "vcc_18"; + }; + + vcca_codec: LDO_REG8 { + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-name = "vcca_codec"; + }; + + vcc_wl: SWITCH_REG1 { + regulator-always-on; + regulator-boot-on; + regulator-name = "vcc_wl"; + }; + + vcc_lcd: SWITCH_REG2 { + regulator-always-on; + regulator-boot-on; + regulator-name = "vcc_lcd"; + }; + }; + }; diff --git a/include/dt-bindings/clock/rockchip,rk808.h b/include/dt-bindings/clock/rockchip,rk808.h new file mode 100644 index 000000000000..1a873432f965 --- /dev/null +++ b/include/dt-bindings/clock/rockchip,rk808.h @@ -0,0 +1,11 @@ +/* + * This header provides constants clk index RK808 pmic clkout + */ +#ifndef _CLK_ROCKCHIP_RK808 +#define _CLK_ROCKCHIP_RK808 + +/* CLOCKOUT index */ +#define RK808_CLKOUT0 0 +#define RK808_CLKOUT1 1 + +#endif