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(xcpe-178-82-167-143.dyn.res.sunrise.net [178.82.167.143]) by mail11.truemail.it (Postfix) with ESMTPA id 861742666C; Mon, 9 Nov 2026 16:58:01 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1794239882; bh=D500kmfJ3Qu7r4nWafyRLbfBk9Mhl+ZKg9JhUW5WufE=; h=From:To:Subject; b=EuBpogJC9ohUxTmXRjz/d+pgykISbVewiEtm1BEIwUdZlbcqJHhYFiOMswEF0KU4+ 6EJYcWFvl4zk2iUmdLan+w+ABfuUgHn431PExA9sDDgJPLYD42pfx1Er3YIUoKNhd0 +mn0U/jfB6joTMUF7s+9bGY1uCWoZ93oMRob82NNLraTOCAKCkYKWEZTN5XG6qTERt exjZwmDFvVxV7/8VDOe+F7aRbgv2u7sqzj2QV3fzsQ/migOcgHztq0aBIM8F4vphVl TmtgIxhcemdiT7BrgizRtv6rg2ocjDuaEUc8pvn4lOUfPF6pubnF4Um0RSi7xMS/po ZC8KKPibeLGAA== From: Francesco Dolcini To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Francesco Dolcini , Kiryl Shutsemau , Rick Edgecombe , Dave Hansen Cc: devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-bsp@toradex.com, x86@kernel.org, linux-coco@lists.linux.dev, kvm@vger.kernel.org Subject: [PATCH v2 4/8] ARM: dts: imx6ull-colibri: Align backlight brightness levels with Colibri iMX7 Date: Mon, 9 Nov 2026 16:57:44 +0100 Message-ID: <20261109155751.475875-5-francesco@dolcini.it> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20261109155751.475875-1-francesco@dolcini.it> References: <20261109155751.475875-1-francesco@dolcini.it> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Francesco Dolcini The LED driver of the Toradex 7" parallel displays turns the backlight off below roughly 15% PWM duty cycle, with the current brightness levels only the three highest ones produce a visible image. Use the same brightness levels as on the Colibri iMX7, which is used with the same displays, keeping the default brightness at about the same value. Signed-off-by: Francesco Dolcini --- v2: no changes --- arch/arm/boot/dts/nxp/imx/imx6ull-colibri.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/nxp/imx/imx6ull-colibri.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ull-colibri.dtsi index 1eb1cf2d7395..dd2dc23f0cf1 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6ull-colibri.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6ull-colibri.dtsi @@ -14,8 +14,8 @@ aliases { backlight: backlight { compatible = "pwm-backlight"; - brightness-levels = <0 4 8 16 32 64 128 255>; - default-brightness-level = <6>; + brightness-levels = <0 45 63 88 119 158 203 255>; + default-brightness-level = <4>; enable-gpios = <&gpio1 11 GPIO_ACTIVE_HIGH>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_gpio_bl_on>; -- 2.47.3