From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: Johannes Schneider <johannes.schneider@leica-geosystems.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
NXP Linux Team <linux-imx@nxp.com>,
devicetree@vger.kernel.org
Subject: Re: [PATCH 1/1] arm64: dts: imx8mm: set PCA9450a as PMIC
Date: Wed, 4 Jan 2023 07:09:02 +0100 [thread overview]
Message-ID: <01587a4b-6346-76a1-2bb9-f4db9ec2adf5@pengutronix.de> (raw)
In-Reply-To: <20230104052317.1083372-2-johannes.schneider@leica-geosystems.com>
On 04.01.23 06:23, Johannes Schneider wrote:
> new/current EVKs come with a different PMIC: old(er) ones used to use
> "rohm,bd71847", which is now replaced "nxp,pca9450a" on the LPDDR4
> EVKs
>
> Signed-off-by: Johannes Schneider <johannes.schneider@leica-geosystems.com>
> ---
> .../boot/dts/freescale/imx8mm-ddr4-evk.dts | 124 ++++++++++++++++++
> 1 file changed, 124 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-ddr4-evk.dts b/arch/arm64/boot/dts/freescale/imx8mm-ddr4-evk.dts
> index 6c079c0a3a48..3d986aa3e0e8 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm-ddr4-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-ddr4-evk.dts
> @@ -55,3 +55,127 @@ MX8MM_IOMUXC_NAND_CE3_B_GPIO3_IO4 0x19
> >;
> };
> };
> +
> +&A53_0 {
> + cpu-supply = <&buck2_reg>;
> +};
> +
> +&A53_1 {
> + cpu-supply = <&buck2_reg>;
> +};
> +
> +&A53_2 {
> + cpu-supply = <&buck2_reg>;
> +};
> +
> +&A53_3 {
> + cpu-supply = <&buck2_reg>;
> +};
> +
> +&i2c1 {
This bus already has a Rohm PMIC at 0x4b. You need to move that out of
imx8mm-evk.dtsi and into the older DTS. See the imx8mn-evk.dtsi for details.
> + clock-frequency = <384000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c1>;
Pinmux already done in DTSI.
> + status = "okay";
> +
> + pmic_nxp: pca9450@25 {
pmic@25.
> + compatible = "nxp,pca9450a";
> + reg = <0x25>;
> + pinctrl-0 = <&pinctrl_pmic>;
> + pinctrl-names = "default";
> + interrupt-parent = <&gpio1>;
> + interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
> +
> + regulators {
> + buck1_reg: BUCK1 {
> + regulator-name = "BUCK1";
> + regulator-min-microvolt = <600000>;
> + regulator-max-microvolt = <2187500>;
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-ramp-delay = <3125>;
> + nxp,dvs-run-voltage = <820000>;
> + nxp,dvs-standby-voltage = <800000>;
> + };
> +
> + buck2_reg: BUCK2 {
> + regulator-name = "BUCK2";
> + regulator-min-microvolt = <600000>;
> + regulator-max-microvolt = <2187500>;
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-ramp-delay = <3125>;
> + };
> +
> + buck3_reg: BUCK3 {
> + regulator-name = "BUCK3";
> + regulator-min-microvolt = <600000>;
> + regulator-max-microvolt = <2187500>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + buck4_reg: BUCK4 {
> + regulator-name = "BUCK4";
> + regulator-min-microvolt = <600000>;
> + regulator-max-microvolt = <3400000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + buck5_reg: BUCK5 {
> + regulator-name = "BUCK5";
> + regulator-min-microvolt = <600000>;
> + regulator-max-microvolt = <3400000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + buck6_reg: BUCK6 {
> + regulator-name = "BUCK6";
> + regulator-min-microvolt = <600000>;
> + regulator-max-microvolt = <3400000>;
> + 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 = <1150000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + ldo3_reg: LDO3 {
> + regulator-name = "LDO3";
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + ldo4_reg: LDO4 {
> + regulator-name = "LDO4";
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + ldo5_reg: LDO5 {
> + regulator-name = "LDO5";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + };
> + };
> + };
> +};
--
Pengutronix e.K. | |
Steuerwalder Str. 21 | http://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
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next prev parent reply other threads:[~2023-01-04 6:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-04 5:23 [PATCH 0/1] pmic on imx8mm Johannes Schneider
2023-01-04 5:23 ` [PATCH 1/1] arm64: dts: imx8mm: set PCA9450a as PMIC Johannes Schneider
2023-01-04 6:09 ` Ahmad Fatoum [this message]
2023-01-04 6:04 ` [PATCH 0/1] pmic on imx8mm Ahmad Fatoum
2023-01-04 6:10 ` Ahmad Fatoum
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