arm64: dts: ti: k3-am69-aquila-dev: Fix DP regulator enable GPIO

Correct the DP regulator enable GPIO to index 21.
The 3.3V DP regulator was not being enabled by the assigned GPIO, as it
is routed to GPIO index 21 and not 37, which was causing instability
with displays connected over DP or via an active DP-to-HDMI adapter.

Fixes: 39ac6623b1d8 ("arm64: dts: ti: Add Aquila AM69 Support")
Cc: stable@vger.kernel.org
Signed-off-by: Franz Schnyder <franz.schnyder@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://patch.msgid.link/20260202083604.325060-2-fra.schnyder@gmail.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

diff --git a/arch/arm64/boot/dts/ti/k3-am69-aquila-dev.dts b/arch/arm64/boot/dts/ti/k3-am69-aquila-dev.dts
index f48601ae38b7c72d36fdaf6d0284d44603a33ac1..d3677c2c25473dbd35b333ddbfb913a2c7ae2b32 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am69-aquila-dev.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-aquila-dev.dts
@@ -33,7 +33,7 @@
                pinctrl-names = "default";
                pinctrl-0 = <&pinctrl_gpio_21_dp>;
                /* Aquila GPIO_21_DP (AQUILA B57) */
-               gpio = <&main_gpio0 37 GPIO_ACTIVE_HIGH>;
+               gpio = <&main_gpio0 21 GPIO_ACTIVE_HIGH>;
                enable-active-high;
                regulator-max-microvolt = <3300000>;
                regulator-min-microvolt = <3300000>;