Commit dff503ab authored by Marek Vasut's avatar Marek Vasut Committed by Alexandre Torgue
Browse files

ARM: dts: stm32: Repair PMIC configuration on AV96 



The vdd PMIC buck regulator was misconfigured, which caused instability
of the board and malfunction of high-speed interfaces, like the RGMII.
Configure the PMIC correctly to repair these problems. Also add missing
Enpirion regulator for the IO voltage into the DT.

Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com
To: linux-arm-kernel@lists.infradead.org
Signed-off-by: default avatarAlexandre Torgue <alexandre.torgue@st.com>
parent ea6318dc

arch/arm/boot/dts/stm32mp157a-avenger96.dts

+15 −3
Original line number Diff line number Diff line
@@ -77,6 +77,17 @@ 
			default-state = "off";

		};

	};



	/* Enpirion EP3A8LQI U2 on the DHCOR */

	vdd_io: regulator-buck-io {

		compatible = "regulator-fixed";

		regulator-name = "buck-io";

		regulator-min-microvolt = <1800000>;

		regulator-max-microvolt = <1800000>;

		regulator-always-on;

		regulator-boot-on;

		vin-supply = <&vdd>;

	};

};



&ethernet0 {
@@ -166,8 +177,8 @@ 


			vdd: buck3 {

				regulator-name = "vdd";

				regulator-min-microvolt = <3300000>;

				regulator-max-microvolt = <3300000>;

				regulator-min-microvolt = <2900000>;

				regulator-max-microvolt = <2900000>;

				regulator-always-on;

				regulator-initial-mode = <0>;

				regulator-over-current-protection;
@@ -245,6 +256,7 @@ 
				regulator-name = "vbus_otg";

				interrupts = <IT_OCP_OTG 0>;

				interrupt-parent = <&pmic>;

				regulator-active-discharge = <1>;

			};



			vbus_sw: pwr_sw2 {
@@ -275,7 +287,7 @@ 
};



&pwr_regulators {

	vdd-supply = <&vdd>;

	vdd-supply = <&vdd_io>;

	vdd_3v3_usbfs-supply = <&vdd_usb>;

};