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From: Frank Li <Frank.li@nxp.com>
To: Alexander Feilke <Alexander.Feilke@ew.tq-group.com>
Cc: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	linux@ew.tq-group.com, devicetree@vger.kernel.org,
	imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] ARM: dts: imx7-mba7: disable boot_cfg pins after boot
Date: Wed, 18 Feb 2026 11:42:38 -0500	[thread overview]
Message-ID: <aZXr_r1VEx5kcl7g@lizhi-Precision-Tower-5810> (raw)
In-Reply-To: <20260218135415.204974-4-Alexander.Feilke@ew.tq-group.com>

On Wed, Feb 18, 2026 at 02:54:14PM +0100, Alexander Feilke wrote:
> The BOOT_CFG pins are located on the LCD bus on our starterkit.
> Disable them after boot to separate those signals.

Your comments is more clear.  Is below commit massage better?

ARM: dts: imx7-mba7: Deassert BOOT_EN to separate BOOT_CFG circuits after boot

Deassert BOOT_EN after boot to separate BOOT_CFG circuits from LCD signals.

Frank
>
> Signed-off-by: Alexander Feilke <Alexander.Feilke@ew.tq-group.com>
> ---
>  arch/arm/boot/dts/nxp/imx/imx7-mba7.dtsi | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/arch/arm/boot/dts/nxp/imx/imx7-mba7.dtsi b/arch/arm/boot/dts/nxp/imx/imx7-mba7.dtsi
> index 03f2f2cbdfbc..4192adb27223 100644
> --- a/arch/arm/boot/dts/nxp/imx/imx7-mba7.dtsi
> +++ b/arch/arm/boot/dts/nxp/imx/imx7-mba7.dtsi
> @@ -287,6 +287,15 @@ &flexcan2 {
>  	status = "okay";
>  };
>
> +&gpio4 {
> +	/* Deassert BOOT_EN after boot to separate BOOT_CFG circuits from LCD signals */
> +	boot-en-hog {
> +		gpio-hog;
> +		gpios = <3 GPIO_ACTIVE_LOW>;
> +		output-low;
> +	};
> +};
> +
>  &i2c1 {
>  	lm75: temperature-sensor@49 {
>  		compatible = "national,lm75a";
> --
> 2.43.0
>


  reply	other threads:[~2026-02-18 16:42 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-18 13:54 [PATCH 0/3] ARM: dts: TQMa7: modify for use in bootloaders Alexander Feilke
2026-02-18 13:54 ` [PATCH 1/3] ARM: dts: imx7s: add boot phase properties Alexander Feilke
2026-02-18 13:54 ` [PATCH 2/3] ARM: dts: tqma7: " Alexander Feilke
2026-02-18 13:54 ` [PATCH 3/3] ARM: dts: imx7-mba7: disable boot_cfg pins after boot Alexander Feilke
2026-02-18 16:42   ` Frank Li [this message]
2026-02-18 16:55     ` alexander.feilke
2026-02-18 17:17   ` [PATCH 3/3 v2] ARM: dts: imx7-mba7: separate BOOT_CFG circuits " alexander.feilke

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