On Tue, Apr 23, 2019 at 02:16:48PM +0000, Leonard Crestez wrote: > 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> > > --- > arch/arm64/boot/dts/freescale/imx8mm-evk.dts | 131 +++++++++++++++++++ > 1 file changed, 131 insertions(+) > > Changes since v1: > - Move compatible property first > - Remove address/size numbering from regulators list > Link: https://marc.info/?l=linux-clk&m=155530430429151&w=2 > > Other imx8mm cpufreq patches in that series already accepted. > > diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts > index 2d5d89475b76..623254786c2d 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-compatible = "BUCK1"; bindings/regulator/regulator.txt says that regulator-compatible is a deprecated property. Shawn > + regulator-min-microvolt = <700000>; > + regulator-max-microvolt = <1300000>; > + regulator-boot-on; > + regulator-always-on; > + regulator-ramp-delay = <1250>; > + }; > + > + buck2_reg: BUCK2 { > + regulator-compatible = "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-compatible = "BUCK3"; > + regulator-min-microvolt = <700000>; > + regulator-max-microvolt = <1350000>; > + regulator-boot-on; > + regulator-always-on; > + }; > + > + buck4_reg: BUCK4 { > + // BUCK6 in datasheet > + regulator-compatible = "BUCK4"; > + regulator-min-microvolt = <3000000>; > + regulator-max-microvolt = <3300000>; > + regulator-boot-on; > + regulator-always-on; > + }; > + > + buck5_reg: BUCK5 { > + // BUCK7 in datasheet > + regulator-compatible = "BUCK5"; > + regulator-min-microvolt = <1605000>; > + regulator-max-microvolt = <1995000>; > + regulator-boot-on; > + regulator-always-on; > + }; > + > + buck6_reg: BUCK6 { > + // BUCK8 in datasheet > + regulator-compatible = "BUCK6"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <1400000>; > + regulator-boot-on; > + regulator-always-on; > + }; > + > + ldo1_reg: LDO1 { > + regulator-compatible = "LDO1"; > + regulator-min-microvolt = <3000000>; > + regulator-max-microvolt = <3300000>; > + regulator-boot-on; > + regulator-always-on; > + }; > + > + ldo2_reg: LDO2 { > + regulator-compatible = "LDO2"; > + regulator-min-microvolt = <900000>; > + regulator-max-microvolt = <900000>; > + regulator-boot-on; > + regulator-always-on; > + }; > + > + ldo3_reg: LDO3 { > + regulator-compatible = "LDO3"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <3300000>; > + regulator-boot-on; > + regulator-always-on; > + }; > + > + ldo4_reg: LDO4 { > + regulator-compatible = "LDO4"; > + regulator-min-microvolt = <900000>; > + regulator-max-microvolt = <1800000>; > + regulator-boot-on; > + regulator-always-on; > + }; > + > + ldo6_reg: LDO6 { > + regulator-compatible = "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 > >; > }; > -- > 2.17.1 >
