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(93-49-2-63.ip317.fastwebnet.it [93.49.2.63]) by mail11.truemail.it (Postfix) with ESMTPA id 03BCD20020; Thu, 1 Oct 2026 19:49:32 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1790876973; bh=bBvSWJey5DYABgnbVHURMRWOEVtheIo6pFXgiypB5gE=; h=From:To:Subject; b=F9QEaVCP9SxNaJnZH0uXy9kvp+MlCdhueQhQzBqhTwpFk1l/r7I7w4jpD1412VwaS YCGVNFdu/4nwjjgyufFAGLSc0Bl5TIjsB/7NBxv2t2nDABfHxY3knP2YTbCzs5ZHSN ytlpVQVexn4W12dM+J7i+6j9bolmyQ267L+oCkEBXwOTkLIV1mIMEmlFesZYySaJWb DIH7RnxVMFEbM5/cbO4i2sxQUAB9B/TqSpdu0S/f36O0MduzYCjFK4YErJ8h5qRzRy e/QUq/taq+Nw8T2vkwojz9KqhFB9PGMeBGYuBQYaP7my70J0Zl2v1B39/9PK10YpR1 HWS2+iJjvshyg== From: Francesco Dolcini To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: Francesco Dolcini , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 3/7] ARM: dts: imx6ull-colibri: Align backlight brightness levels with Colibri iMX7 Date: Thu, 1 Oct 2026 19:49:12 +0200 Message-ID: <20261001174924.3831455-4-francesco@dolcini.it> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20261001174924.3831455-1-francesco@dolcini.it> References: <20261001174924.3831455-1-francesco@dolcini.it> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261001_184938_705823_9AAA945F X-CRM114-Status: GOOD ( 12.03 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 --- 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 ec3c1e7301f4..c2f8fd195041 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