arm64: dts: ti: k3-am62p-verdin: fix PWM_3_DSI GPIO direction

PWM_3_DSI is used as the HDMI Hot-Plug Detect (HPD) GPIO for the Verdin
DSI-to-HDMI adapter. After the commit 33bab9d84e52 ("arm64: dts: ti:
k3-am62p: fix pinctrl settings"), the pin was incorrectly set as output
without RXACTIVE, breaking HPD detection and display functionality.
The issue was previously hidden and worked by chance before the mentioned
pinctrl fix.

Fix the pinmux configuration to correctly set PWM_3_DSI GPIO as an input.

Fixes: 87f95ea316ac ("arm64: dts: ti: Add Toradex Verdin AM62P")
Signed-off-by: Parth Pancholi <parth.pancholi@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20250703084534.1649594-1-parth105105@gmail.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

diff --git a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
index 85c001aef7e3d587aa9a9e2c6033d81a8bbaf209..24b233de2bf4ec245bd6ff24ec6d3277866fcab1 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
@@ -426,7 +426,7 @@
        /* Verdin PWM_3_DSI as GPIO */
        pinctrl_pwm3_dsi_gpio: main-gpio1-16-default-pins {
                pinctrl-single,pins = <
-                       AM62PX_IOPAD(0x01b8, PIN_OUTPUT, 7) /* (E20) SPI0_CS1.GPIO1_16 */ /* SODIMM 19 */
+                       AM62PX_IOPAD(0x01b8, PIN_INPUT, 7) /* (E20) SPI0_CS1.GPIO1_16 */ /* SODIMM 19 */
                >;
        };