[PATCH v1] arm64: dts: freescale: imx95-aquila: mark +V1.2_DP as boot-on

[PATCH v1] arm64: dts: freescale: imx95-aquila: mark +V1.2_DP as boot-on

[Francesco Dolcini]

From: Francesco Dolcini <francesco.dolcini@toradex.com>

Mark the +V1.2_DP regulator as boot-on, matching the hardware: the
CTRL_DP_BRIDGE_EN enable line of this supply of the SN65DSI86 DSI-to-DP
bridge is pulled up on the module, so the supply is on by default,
before any software runs.

Without it the regulator is briefly switched off and on again during
the board start-up, potentially disrupting I2C transactions on the bus
where the SN65DSI86 is connected.

Fixes: d5c082ba23db ("arm64: dts: freescale: add Aquila iMX95 support")
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
 arch/arm64/boot/dts/freescale/imx95-aquila.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/freescale/imx95-aquila.dtsi b/arch/arm64/boot/dts/freescale/imx95-aquila.dtsi
index c5f4cf0541f2..d40514cd2e00 100644
--- a/arch/arm64/boot/dts/freescale/imx95-aquila.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx95-aquila.dtsi
@@ -91,6 +91,7 @@ reg_dp_1p2v: regulator-dp-1p2v {
 		gpios = <&som_gpio_expander_0 7 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 		regulator-always-on;
+		regulator-boot-on;
 		regulator-max-microvolt = <1200000>;
 		regulator-min-microvolt = <1200000>;
 		regulator-name = "On-module +V1.2_DP";
-- 
2.47.3

Re: [PATCH v1] arm64: dts: freescale: imx95-aquila: mark +V1.2_DP as boot-on

[Daniel Baluta]

On 10/23/26 13:24, Francesco Dolcini wrote:
> From: Francesco Dolcini <francesco.dolcini@toradex.com>
> 
> Mark the +V1.2_DP regulator as boot-on, matching the hardware: the
> CTRL_DP_BRIDGE_EN enable line of this supply of the SN65DSI86 DSI-to-DP
> bridge is pulled up on the module, so the supply is on by default,
> before any software runs.
> 
> Without it the regulator is briefly switched off and on again during
> the board start-up, potentially disrupting I2C transactions on the bus
> where the SN65DSI86 is connected.
> 
> Fixes: d5c082ba23db ("arm64: dts: freescale: add Aquila iMX95 support")
> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>

LGTM,

Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>

Re: [PATCH v1] arm64: dts: freescale: imx95-aquila: mark +V1.2_DP as boot-on

[Frank.Li]

From: Frank Li <Frank.Li@nxp.com>


On Fri, 23 Oct 2026 12:24:03 +0200, Francesco Dolcini wrote:
> Mark the +V1.2_DP regulator as boot-on, matching the hardware: the
> CTRL_DP_BRIDGE_EN enable line of this supply of the SN65DSI86 DSI-to-DP
> bridge is pulled up on the module, so the supply is on by default,
> before any software runs.
> 
> Without it the regulator is briefly switched off and on again during
> the board start-up, potentially disrupting I2C transactions on the bus
> where the SN65DSI86 is connected.
> 
> [...]

Applied, thanks!

[1/1] arm64: dts: freescale: imx95-aquila: mark +V1.2_DP as boot-on
      commit: d9266f28a24d1d835b180dcf6bf45f0de85ed565

Best regards,
-- 
Frank Li <Frank.Li@nxp.com>