ARM: dts: stm32: Add power-supply for DSI panel on stm32f469-disco

[ Upstream commit 0ff15a86d0c5a3f004fee2e92d65b88e56a3bc58 ]

Add a fixed regulator and use it as power supply for DSI panel.

Fixes: 18c8866266 ("ARM: dts: stm32: Add display support on stm32f469-disco")

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm/boot/dts/stm32f469-disco.dts b/arch/arm/boot/dts/stm32f469-disco.dts
index 3ee768c..eea979e 100644 (file)
--- a/arch/arm/boot/dts/stm32f469-disco.dts
+++ b/arch/arm/boot/dts/stm32f469-disco.dts
@@ -75,6 +75,13 @@
                regulator-max-microvolt = <3300000>;
        };
 
+       vdd_dsi: vdd-dsi {
+               compatible = "regulator-fixed";
+               regulator-name = "vdd_dsi";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+       };
+
        soc {
                dma-ranges = <0xc0000000 0x0 0x10000000>;
        };
@@ -154,6 +161,7 @@
                compatible = "orisetech,otm8009a";
                reg = <0>; /* dsi virtual channel (0..3) */
                reset-gpios = <&gpioh 7 GPIO_ACTIVE_LOW>;
+               power-supply = <&vdd_dsi>;
                status = "okay";
 
                port {