From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 25DCE60A5BD3 for ; Mon, 9 Nov 2026 15:58:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=Qwog6eFc; dkim=pass (2048-bit key, unprotected) header.d=dolcini.it header.i=@dolcini.it header.a=rsa-sha256 header.s=default header.b=EuBpogJC DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Unsubscribe-Post: List-Owner; bh=D500kmfJ3Qu7r4nWafyRLbfBk9Mhl+ZKg9JhUW5WufE=; b=Qwog6eFcdJ0KMi q5O1cbDXBbbAfLFLxb3EroV0yDwsIvt4B+NRDW2Og2c5ue+4zbREx1J4Bw0I8kTWVSOFtoJH62JU2 /MFGij+vCyhP8QFL8+oVp/rHkdwsm4QLNT8EQ5R+228Hy/xgv5nKJSgJa6crhRfNpilw1rVVbwDU4 m0fH2JTQSoJQjic9DoLbH+tcKvdalwG9meO05NPNpuACtq94ubHOuR/gVg8SMkNe0CB9+DqmHPVHp BCciDbwg/4JTwjQf13A2od3UuebG8vyXM59B/TbjkmUDjLqPuirvnYKfDPGNq02BOBOOdWmOE1lBf 0jZqpPHQAga/EAViZHhA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xQRl3-0000000160x-3Rnp; Mon, 09 Nov 2026 15:58:09 +0000 Received: from mail11.truemail.it ([217.194.8.81]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xQRl0-000000015y7-0ftM for linux-arm-kernel@lists.infradead.org; Mon, 09 Nov 2026 15:58:08 +0000 Received: from francesco-nb.. (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-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261109_075806_987383_EA2B0ED0 X-CRM114-Status: GOOD ( 11.82 ) X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-18.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 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