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ARM: dts: stm32: Repair PMIC configuration on AV96

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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: Marek 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: Alexandre Torgue <alexandre.torgue@st.com>
This commit is contained in:
Marek Vasut 2020-04-22 12:45:54 +02:00 committed by Alexandre Torgue
parent ea6318dc5a
commit dff503ab76
1 changed files with 15 additions and 3 deletions
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18
arch/arm/boot/dts/stm32mp157a-avenger96.dts
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@ -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>;
};