[PATCH v7 1/3] arm64: dts: imx8mm-evk: move PMIC configuration

Ahmad Fatoum a.fatoum at pengutronix.de
Thu Jan 19 02:02:58 PST 2023


Hello Marco,

On 19.01.23 10:51, Marco Felsch wrote:
> Do we really need to move it into another dtsi file? I would either
> suggest to move the pmic description into the .dts file since it is not
> common anymore. This way we can avoid the imx8mm-evk-rohm-pmic.dtsi.

The PMIC DTSIs were my suggestion. The Rohm PMIC is still common between
old LPDDR4 EVK and DDR4 EVK.

Cheers,
Ahmad

> 
> Regards,
>   Marco
> 
>>  / {
>>  	model = "FSL i.MX8MM DDR4 EVK with CYW43455 WIFI/BT board";
>> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk-rohm-pmic.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-evk-rohm-pmic.dtsi
>> new file mode 100644
>> index 000000000000..0b056996a27b
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk-rohm-pmic.dtsi
>> @@ -0,0 +1,118 @@
>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>> +/*
>> + * Copyright 2020 NXP
>> + */
>> +
>> +&i2c1 {
>> +	pmic at 4b {
>> +		compatible = "rohm,bd71847";
>> +		reg = <0x4b>;
>> +		pinctrl-names = "default";
>> +		pinctrl-0 = <&pinctrl_pmic>;
>> +		interrupt-parent = <&gpio1>;
>> +		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
>> +		rohm,reset-snvs-powered;
>> +
>> +		#clock-cells = <0>;
>> +		clocks = <&osc_32k 0>;
>> +		clock-output-names = "clk-32k-out";
>> +
>> +		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 = <1600000>;
>> +				regulator-max-microvolt = <3300000>;
>> +				regulator-boot-on;
>> +				regulator-always-on;
>> +			};
>> +
>> +			ldo2_reg: LDO2 {
>> +				regulator-name = "ldo2";
>> +				regulator-min-microvolt = <800000>;
>> +				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;
>> +			};
>> +		};
>> +	};
>> +};
>> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
>> index a2b24d4d4e3e..d2b6d7de7e53 100644
>> --- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
>> +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
>> @@ -7,6 +7,7 @@
>>  
>>  #include <dt-bindings/usb/pd.h>
>>  #include "imx8mm-evk.dtsi"
>> +#include "imx8mm-evk-rohm-pmic.dtsi"
>>  
>>  / {
>>  	model = "FSL i.MX8MM EVK board";
>> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
>> index 7d6317d95b13..21d0614af44c 100644
>> --- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
>> +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
>> @@ -182,118 +182,6 @@ &i2c1 {
>>  	pinctrl-names = "default";
>>  	pinctrl-0 = <&pinctrl_i2c1>;
>>  	status = "okay";
>> -
>> -	pmic at 4b {
>> -		compatible = "rohm,bd71847";
>> -		reg = <0x4b>;
>> -		pinctrl-names = "default";
>> -		pinctrl-0 = <&pinctrl_pmic>;
>> -		interrupt-parent = <&gpio1>;
>> -		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
>> -		rohm,reset-snvs-powered;
>> -
>> -		#clock-cells = <0>;
>> -		clocks = <&osc_32k 0>;
>> -		clock-output-names = "clk-32k-out";
>> -
>> -		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 = <1600000>;
>> -				regulator-max-microvolt = <3300000>;
>> -				regulator-boot-on;
>> -				regulator-always-on;
>> -			};
>> -
>> -			ldo2_reg: LDO2 {
>> -				regulator-name = "ldo2";
>> -				regulator-min-microvolt = <800000>;
>> -				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;
>> -			};
>> -		};
>> -	};
>>  };
>>  
>>  &i2c2 {
>> -- 
>> 2.25.1
>>
>>
>>
> 
> 

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