The BUCK2 regulator is used for cpufreq voltage control, otherwise configuration is mostly static. This uses the newly-implemented rohm,reset-snvs-powered property to properly handle the SNVS state of imx8mm. Between BD71837 and BD71847 the BUCK3/4 regulators were removed but datasheet and board schematics kept the names for BUCK5/6/7/8. The driver however renumbered 5/6/7/8 to 3/4/5/6. Use the names from DT bindings and add comments to signal this. Signed-off-by: Leonard Crestez <leonard.crestez@xxxxxxx> Acked-By: Matti Vaittinen <matti.vaittinen@xxxxxxxxxxxxxxxxx> Reviewed-by: Rob Herring <robh@xxxxxxxxxx> --- I apologize for sending base64 in the past, it's caused by IT policy but I found a workaround and hopefully this arrives in plain-text as intended. Changes since v2: - Replace regulator-compatible with regulator-name (Shawn) Link to v2: https://patchwork.kernel.org/patch/10913177/ Changes since v1: - Move compatible property first - Remove address/size numbering from regulators list Link to v1: https://marc.info/?l=linux-clk&m=155530430429151&w=2 arch/arm64/boot/dts/freescale/imx8mm-evk.dts | 131 +++++++++++++++++++++++++++ 1 file changed, 131 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts index 2d5d89475b76..f8ff0a4b8961 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts @@ -37,10 +37,14 @@ gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>; enable-active-high; }; }; +&A53_0 { + cpu-supply = <&buck2_reg>; +}; + &fec1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_fec1>; phy-mode = "rgmii-id"; phy-handle = <ðphy0>; @@ -93,10 +97,124 @@ pinctrl-0 = <&pinctrl_wdog>; fsl,ext-reset-output; status = "okay"; }; +&i2c1 { + clock-frequency = <400000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c1>; + status = "okay"; + + pmic@4b { + compatible = "rohm,bd71847"; + reg = <0x4b>; + pinctrl-0 = <&pinctrl_pmic>; + interrupt-parent = <&gpio1>; + interrupts = <3 GPIO_ACTIVE_LOW>; + rohm,reset-snvs-powered; + + regulators { + buck1_reg: BUCK1 { + regulator-name = "BUCK1"; + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <1300000>; + regulator-boot-on; + regulator-always-on; + regulator-ramp-delay = <1250>; + }; + + buck2_reg: BUCK2 { + regulator-name = "BUCK2"; + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <1300000>; + regulator-boot-on; + regulator-always-on; + regulator-ramp-delay = <1250>; + rohm,dvs-run-voltage = <1000000>; + rohm,dvs-idle-voltage = <900000>; + }; + + buck3_reg: BUCK3 { + // BUCK5 in datasheet + regulator-name = "BUCK3"; + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <1350000>; + regulator-boot-on; + regulator-always-on; + }; + + buck4_reg: BUCK4 { + // BUCK6 in datasheet + regulator-name = "BUCK4"; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + regulator-always-on; + }; + + buck5_reg: BUCK5 { + // BUCK7 in datasheet + regulator-name = "BUCK5"; + regulator-min-microvolt = <1605000>; + regulator-max-microvolt = <1995000>; + regulator-boot-on; + regulator-always-on; + }; + + buck6_reg: BUCK6 { + // BUCK8 in datasheet + regulator-name = "BUCK6"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <1400000>; + regulator-boot-on; + regulator-always-on; + }; + + ldo1_reg: LDO1 { + regulator-name = "LDO1"; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + regulator-always-on; + }; + + ldo2_reg: LDO2 { + regulator-name = "LDO2"; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <900000>; + regulator-boot-on; + regulator-always-on; + }; + + ldo3_reg: LDO3 { + regulator-name = "LDO3"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + regulator-always-on; + }; + + ldo4_reg: LDO4 { + regulator-name = "LDO4"; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <1800000>; + regulator-boot-on; + regulator-always-on; + }; + + ldo6_reg: LDO6 { + regulator-name = "LDO6"; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <1800000>; + regulator-boot-on; + regulator-always-on; + }; + }; + }; +}; + &iomuxc { pinctrl-names = "default"; pinctrl_fec1: fec1grp { fsl,pins = < @@ -122,10 +240,23 @@ fsl,pins = < MX8MM_IOMUXC_NAND_READY_B_GPIO3_IO16 0x19 >; }; + pinctrl_i2c1: i2c1grp { + fsl,pins = < + MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL 0x400001c3 + MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA 0x400001c3 + >; + }; + + pinctrl_pmic: pmicirq { + fsl,pins = < + MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3 0x41 + >; + }; + pinctrl_reg_usdhc2_vmmc: regusdhc2vmmc { fsl,pins = < MX8MM_IOMUXC_SD2_RESET_B_GPIO2_IO19 0x41 >; }; -- 2.7.4
