[PATCH v1 0/2] arm64: dts: ti: k3-am69-aquila: Fix DP enable GPIO

[PATCH v1 0/2] arm64: dts: ti: k3-am69-aquila: Fix DP enable GPIO

[Franz Schnyder]

From: Franz Schnyder <franz.schnyder@toradex.com>

Correct the DP regulator enable GPIO to index 21 on Clover and Dev board.
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.

Franz Schnyder (2):
  arm64: dts: ti: k3-am69-aquila-dev: Fix DP regulator enable GPIO
  arm64: dts: ti: k3-am69-aquila-clover: Fix DP regulator enable GPIO

 arch/arm64/boot/dts/ti/k3-am69-aquila-clover.dts | 2 +-
 arch/arm64/boot/dts/ti/k3-am69-aquila-dev.dts    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

-- 
2.43.0

[PATCH v1 1/2] arm64: dts: ti: k3-am69-aquila-dev: Fix DP regulator enable GPIO

[Franz Schnyder]

From: Franz Schnyder <franz.schnyder@toradex.com>

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>
---
 arch/arm64/boot/dts/ti/k3-am69-aquila-dev.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 f48601ae38b7..d3677c2c2547 100644
--- 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 @@ reg_3v3_dp: regulator-3v3-dp {
 		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>;
-- 
2.43.0

[PATCH v1 2/2] arm64: dts: ti: k3-am69-aquila-clover: Fix DP regulator enable GPIO

[Franz Schnyder]

From: Franz Schnyder <franz.schnyder@toradex.com>

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: 9f748a6177e1 ("arm64: dts: ti: am69-aquila: Add Clover")
Cc: stable@vger.kernel.org
Signed-off-by: Franz Schnyder <franz.schnyder@toradex.com>
---
 arch/arm64/boot/dts/ti/k3-am69-aquila-clover.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am69-aquila-clover.dts b/arch/arm64/boot/dts/ti/k3-am69-aquila-clover.dts
index ec8ff4587715..dc0d3cf2f985 100644
--- a/arch/arm64/boot/dts/ti/k3-am69-aquila-clover.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-aquila-clover.dts
@@ -26,7 +26,7 @@ reg_3v3_dp: regulator-3v3-dp {
 		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>;
-- 
2.43.0

Re: [PATCH v1 0/2] arm64: dts: ti: k3-am69-aquila: Fix DP enable GPIO

[Francesco Dolcini]

On Mon, Feb 02, 2026 at 09:35:59AM +0100, Franz Schnyder wrote:
> From: Franz Schnyder <franz.schnyder@toradex.com>
> 
> Correct the DP regulator enable GPIO to index 21 on Clover and Dev board.
> 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.

Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>

Re: [PATCH v1 0/2] arm64: dts: ti: k3-am69-aquila: Fix DP enable GPIO

[Vignesh Raghavendra]

Hi Franz Schnyder,

On Mon, 02 Feb 2026 09:35:59 +0100, Franz Schnyder wrote:
> Correct the DP regulator enable GPIO to index 21 on Clover and Dev board.
> 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.
> 
> Franz Schnyder (2):
>   arm64: dts: ti: k3-am69-aquila-dev: Fix DP regulator enable GPIO
>   arm64: dts: ti: k3-am69-aquila-clover: Fix DP regulator enable GPIO
> 
> [...]

I have applied the following to branch ti-k3-dts-next on [1].
Thank you!

[1/2] arm64: dts: ti: k3-am69-aquila-dev: Fix DP regulator enable GPIO
      commit: 222191225e69711089ecade3b98d79757d51e907
[2/2] arm64: dts: ti: k3-am69-aquila-clover: Fix DP regulator enable GPIO
      commit: 8cfb2e517113543e0de9e8df5754d5e09cb3627e

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent up the chain during
the next merge window (or sooner if it is a relevant bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
--
Vignesh