From nobody Wed Feb 11 23:10:53 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9CA57C77B73 for ; Wed, 12 Apr 2023 19:46:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229821AbjDLTqR (ORCPT ); Wed, 12 Apr 2023 15:46:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34980 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229583AbjDLTqN (ORCPT ); Wed, 12 Apr 2023 15:46:13 -0400 Received: from mail-lf1-x131.google.com (mail-lf1-x131.google.com [IPv6:2a00:1450:4864:20::131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CAA3D1718 for ; Wed, 12 Apr 2023 12:46:12 -0700 (PDT) Received: by mail-lf1-x131.google.com with SMTP id q26so3936888lfe.9 for ; Wed, 12 Apr 2023 12:46:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1681328771; x=1683920771; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=DEAnat5PSJjsxQAWB7/SpZ+xwfK/Fj2JlbHtk3HNvoA=; b=YXwiyLzg4ji60X8cpHNlrFIzDmyZJKGB81F6A+ebWz+GR6NY5Iw6oTV86QwTK8VLlE 6JFyxipHfmjVM1joCgbYab5wEgc/NJyR1AJYa6JO8xP9LPl+ocaSmy4rQnc+SdPbnh/C 8tyxBZkFJ+js6MrlXgfSsQzD7u7/idqTlgloJP5dzbipQLlNRkjMLXU3cGd0T8Nc2N/B YuGgoV4RzSig1n7Rt3siwcaHYmf2mezeVij+xLS+fEPcYfcwznC2fX6aChJB27I6KJFt DZQWDCkyPETH8zshyG34lInJ17jBpHrxZBLHCp5PYc6fWwVwkrwwPWOGXMK9lPsqAJ/x 8WRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681328771; x=1683920771; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=DEAnat5PSJjsxQAWB7/SpZ+xwfK/Fj2JlbHtk3HNvoA=; b=IHhA9KSw6MGK9NWPz5OQFVGEKFBWU+EJ5uqTwPJAORtKOnYRSxwul4m0xRLMTVPiqh 6KDCdsiJe0f70YfjXnXktJygzeVHL7CdGwGpk6aOjqME3hCzAd6PzzXmAzFgFwydOcDI vpq11eLa1fSwOC2G1NRTaSy26e1oq5n8AqI6DjSKCmjGBFUJfPRNKZjsKOvYYoxPawCC EbXKRGkI/IsAETEEYKpS4NGrfxD4K63f7CPNCUDK9wV6/19SmFvQzx076N+tvnWjCk2G vhgoT9arSDoNgCkEAMrumiCs0J/tL1AoSvHQt9LSK+P9EibKxi99uvkaeuAU1YS/BB/k 6gCA== X-Gm-Message-State: AAQBX9cYTt0TS6n8B4Cm8ukum5tc1Bzybys4fOh9ypvjBLCuXSOf+lnw Q7zVeoRfcjakKtx+RdEHC3hwpg== X-Google-Smtp-Source: AKy350ZQO4wDtrSkqQilMkiMX1DJXlr0CW0RCxaddDxjo+a6jr9yxnIMURGU7xelCIuFm0ODAe3xcA== X-Received: by 2002:ac2:544c:0:b0:4ec:9f36:9b5c with SMTP id d12-20020ac2544c000000b004ec9f369b5cmr2723lfn.68.1681328771108; Wed, 12 Apr 2023 12:46:11 -0700 (PDT) Received: from [192.168.1.101] (abxj23.neoplus.adsl.tpnet.pl. [83.9.3.23]) by smtp.gmail.com with ESMTPSA id x2-20020ac25dc2000000b004ec8de8ab3fsm1205865lfq.132.2023.04.12.12.46.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Apr 2023 12:46:10 -0700 (PDT) From: Konrad Dybcio Date: Wed, 12 Apr 2023 21:45:58 +0200 Subject: [PATCH 1/5] dt-bindings: display: panel: nt36523: Allow 'port' instead of 'ports' MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230412-topic-lenovopanel-v1-1-00b25df46824@linaro.org> References: <20230412-topic-lenovopanel-v1-0-00b25df46824@linaro.org> In-Reply-To: <20230412-topic-lenovopanel-v1-0-00b25df46824@linaro.org> To: Jianhua Lu , Neil Armstrong , Sam Ravnborg , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski Cc: Marijn Suijten , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1681328765; l=1187; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=FMgShhUTMaYzSy2Me7Gv1xSXp92sIQsWFZ0aqhhoJn8=; b=9TbzELnlWNU1kmoa3o/rXyhwMOM4rjVKSxHPyH/watUFxTLNRkHx8vvXq4FZZfrwU4sEibR9V1Uw 0SXo1Q/nB7+4KemAltiOcAA+ADHzcKumbeSaLNwxSdI89adYyaP2 X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Using 'port' instead of 'ports' for single-DSI usecases allows for saving a couple of DTS LoC, including a level of indentation. Allow that. Signed-off-by: Konrad Dybcio --- .../bindings/display/panel/novatek,nt36523.yaml | 15 +++++++++++= ++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt3652= 3.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt36523.ya= ml index 0039561ef04c..38f4f986aef1 100644 --- a/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml +++ b/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml @@ -33,15 +33,26 @@ properties: description: regulator that supplies the I/O voltage =20 reg: true - ports: true backlight: true =20 +oneOf: + - allOf: + - properties: + ports: true + - required: + - ports + + - allOf: + - properties: + port: true + - required: + - port + required: - compatible - reg - vddio-supply - reset-gpios - - ports =20 unevaluatedProperties: false =20 --=20 2.40.0 From nobody Wed Feb 11 23:10:53 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6429FC77B73 for ; Wed, 12 Apr 2023 19:46:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229656AbjDLTqU (ORCPT ); Wed, 12 Apr 2023 15:46:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229660AbjDLTqP (ORCPT ); Wed, 12 Apr 2023 15:46:15 -0400 Received: from mail-lf1-x12a.google.com (mail-lf1-x12a.google.com [IPv6:2a00:1450:4864:20::12a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 399D81718 for ; Wed, 12 Apr 2023 12:46:14 -0700 (PDT) Received: by mail-lf1-x12a.google.com with SMTP id r27so16193298lfe.0 for ; Wed, 12 Apr 2023 12:46:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1681328772; x=1683920772; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=N4kTVSMXSwyC6bo9qzkKhgpiPoowje+aIZSZ/vV/bAc=; b=zWzoQ6dX2JAKA2j4dLDWKS1dbYRopx+EAMlpKfSqpLxDhwF20KnINJTVf581xvVqOY Yp1g7chdDoNPmEIELY1Ey/B9bQiivsYSeE4+4QDfvJlbPzRmjNx9DUBBjWLOukurTkN5 RHDM1qOFEb6/FgaZU49kGm+gU70plR4+GDSq1TSSCrrmmCC22lgmw1JqkLPMHsa9Vkt3 eqcw/z2ATZ3fa9oqLE3EeeSL8Fz9D+oJ+gPw+cF2EFOjwwPU1GT38bg1Z9+yS2sn6v/d 1iU/5CRTlyyCp0SpaI9VQMXeaXaq/SM8noBTw3JsYWRv3UY2nEomYEn6hD5LKzpcLXPu p9JQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681328772; x=1683920772; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=N4kTVSMXSwyC6bo9qzkKhgpiPoowje+aIZSZ/vV/bAc=; b=jwZonH73UA6Cs4YanY0Qce28VPUnl9WUvSOsYIESHs1xsRw7udherkc2X/pBioNln7 QJ9E4uCdBH3e1jRyeHrIXj7Oye+kMBB+yS6yJHToNui4LfB0qFyypcAA7PGsi3GHyFEz 6KMW0X2zxmVqOYdNJl1B70HjL+EdDO3gQzmxvob3w+LCWm7vDwDMn4aveXl1dlr+1CWa kSL3XdUcO8s5XEONwmZz59dNRtbTSSQgPFwNoiTZACM9Ew80rmxb0JsdtH9MGYfRgK1h dUGt+yPTugLjLBYJ8bQmqiWRHP4QhRvDwbNIHjmIAl77YJX7XbQdxk/bqqXY2ZpdotIg jmAQ== X-Gm-Message-State: AAQBX9fChk6XKyOVeuZ0syp5d46/U6+irgpvS1ZVmgcdLPzCRh2PxcF/ wLYaQiVeN3gNFWD2NcTDZRyhIg== X-Google-Smtp-Source: AKy350a95ArQuowl/wgW6TW1gFmnTZp8BouUqK6Ak3W824KKp1HQBcg1kwwWGKQBMJhbR/Nj5V6cuA== X-Received: by 2002:a05:6512:75:b0:4d5:c96f:f7c7 with SMTP id i21-20020a056512007500b004d5c96ff7c7mr16214lfo.23.1681328772621; Wed, 12 Apr 2023 12:46:12 -0700 (PDT) Received: from [192.168.1.101] (abxj23.neoplus.adsl.tpnet.pl. [83.9.3.23]) by smtp.gmail.com with ESMTPSA id x2-20020ac25dc2000000b004ec8de8ab3fsm1205865lfq.132.2023.04.12.12.46.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Apr 2023 12:46:12 -0700 (PDT) From: Konrad Dybcio Date: Wed, 12 Apr 2023 21:45:59 +0200 Subject: [PATCH 2/5] dt-bindings: display: panel: nt36523: Add Lenovo J606F panel MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230412-topic-lenovopanel-v1-2-00b25df46824@linaro.org> References: <20230412-topic-lenovopanel-v1-0-00b25df46824@linaro.org> In-Reply-To: <20230412-topic-lenovopanel-v1-0-00b25df46824@linaro.org> To: Jianhua Lu , Neil Armstrong , Sam Ravnborg , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski Cc: Marijn Suijten , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1681328765; l=1417; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=+xuQ62lO6qldIvMcfFbmsAJ1YwYhA8kqM8Kbhmig26M=; b=VAQKU+1GcrDese/v3mivE+sj/edg3KZBLnVeAboGxoCDRzkc+tnluTjVHCMq/TYmUmu8FRog0BrC yagNztnNCDXbf+S0nW0yjovosEYVTjZOapZnZ8EJ9FmB5agUnrEU X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some Lenovo J606F tablets come with a 2K (2000x1200) 60Hz 11" 5:3 video mode display. Document it and allow rotation while at it (Lenovo mounted it upside down!). Signed-off-by: Konrad Dybcio Reviewed-by: Linus Walleij --- .../bindings/display/panel/novatek,nt36523.yaml | 16 +++++++++++-= ---- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt3652= 3.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt36523.ya= ml index 38f4f986aef1..fda74d5bd89e 100644 --- a/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml +++ b/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml @@ -19,11 +19,16 @@ allOf: =20 properties: compatible: - items: - - enum: - - xiaomi,elish-boe-nt36523 - - xiaomi,elish-csot-nt36523 - - const: novatek,nt36523 + oneOf: + - items: + - enum: + - xiaomi,elish-boe-nt36523 + - xiaomi,elish-csot-nt36523 + - const: novatek,nt36523 + - items: + - enum: + - lenovo,j606f-boe-nt36523w + - const: novatek,nt36523w =20 reset-gpios: maxItems: 1 @@ -33,6 +38,7 @@ properties: description: regulator that supplies the I/O voltage =20 reg: true + rotation: true backlight: true =20 oneOf: --=20 2.40.0 From nobody Wed Feb 11 23:10:53 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9A46EC77B76 for ; Wed, 12 Apr 2023 19:46:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229870AbjDLTq1 (ORCPT ); Wed, 12 Apr 2023 15:46:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35112 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229719AbjDLTqR (ORCPT ); Wed, 12 Apr 2023 15:46:17 -0400 Received: from mail-lf1-x136.google.com (mail-lf1-x136.google.com [IPv6:2a00:1450:4864:20::136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 785D065BA for ; Wed, 12 Apr 2023 12:46:16 -0700 (PDT) Received: by mail-lf1-x136.google.com with SMTP id m4so15954538lfj.13 for ; Wed, 12 Apr 2023 12:46:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1681328774; x=1683920774; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=V2syyztnoLcpIUNviLs7GJ0HFV5Q0EtJR2piodIqSJw=; b=RfudjppL9G0xxKBlGgs2DSoQTslqgi59iqMfEWCBk8iN+Dg6zk7BOuKfvO0F1utOJM ZYzqDjUu7wxeXrBJ2+2dejIwb/1G9bHt0x0cRvyn8zXrpGSOYp4/otzdpnATTQiLqXwY 4AE6lalKMQtRAoYa1aN8R8cdwu5lKCvOSCGKLsBblI6t41lp4tzvWtGMeimGAGrwDhfC Qzx7qc1ngIAoaHMIaSOf6vA0fzpMz+gAOqb5me3vCZMOskQYOBRMisf1FHAWiQodVTbu o9IHYRb4uw94Rse0aEMerz2ulP3wrSf3/iMuRdtHyv1iMjouAjAcNm/ZSVuCFdWFF9Xn 4EuA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681328774; x=1683920774; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=V2syyztnoLcpIUNviLs7GJ0HFV5Q0EtJR2piodIqSJw=; b=PzIkUbffaQaIzuwa5ld+yqHL6pc4cE1nQ6CAWeMR1D36K652QxfYxjeUSYhMKGkUQo Yugd0dMdKvvN6+pLpcGSp3sb7wMGTAF1qVQ57iutiexQ2MTjMrDJfCwZJEQEnr/4ftSu EGXfsm49MsXOnzyelRnNQ8fo958WJeq9qAi4CRQp7MJguqVSJq9KNtNmoFbzL9WI4noe FciZU4pMBr5KrNnlh9DQGVwmzghGzjg4KpH0t2+RX3atInfREVWQehnl4fP88CI6c1yD hQRpKeHLz9jb5ZsOrfVKUWlIbfv8lJqdGBpFfldWEZzcnFNlRcLIrF26J3HjA6/xxl6e cg5g== X-Gm-Message-State: AAQBX9cDIZsnXpZ6tVng/7qa54j1lo9Tgi20WG2igCPAObovT0sc4RZG Bdh699Rf69+vIgymwkI6zDUK7A== X-Google-Smtp-Source: AKy350bIn1HpqV+HLVwmlEhLY+jtsM/Pb73dRYtaanipb2FLYFUFk/ryHNgkBySXye0vjf1vyofOXw== X-Received: by 2002:ac2:569a:0:b0:4ea:f4f4:dccd with SMTP id 26-20020ac2569a000000b004eaf4f4dccdmr10465lfr.68.1681328774663; Wed, 12 Apr 2023 12:46:14 -0700 (PDT) Received: from [192.168.1.101] (abxj23.neoplus.adsl.tpnet.pl. [83.9.3.23]) by smtp.gmail.com with ESMTPSA id x2-20020ac25dc2000000b004ec8de8ab3fsm1205865lfq.132.2023.04.12.12.46.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Apr 2023 12:46:14 -0700 (PDT) From: Konrad Dybcio Date: Wed, 12 Apr 2023 21:46:00 +0200 Subject: [PATCH 3/5] drm/panel: nt36523: Add DCS backlight support MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230412-topic-lenovopanel-v1-3-00b25df46824@linaro.org> References: <20230412-topic-lenovopanel-v1-0-00b25df46824@linaro.org> In-Reply-To: <20230412-topic-lenovopanel-v1-0-00b25df46824@linaro.org> To: Jianhua Lu , Neil Armstrong , Sam Ravnborg , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski Cc: Marijn Suijten , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1681328765; l=3407; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=9qqhcFpj6mF/L7AASWe+iOrvvqzkHzB2/YH6M7xRsIE=; b=aaw8d1wQUM5xrKtH4IBrznSRGGUZaSyx3AjopF5+cWdlTv3kuJUW1nQTTUmCN592VUP7cB4PIeZx xt2oLM0aAVhODQeuFYxIxrlaZfJNRPx6hs7y2M9Swnwxv/7IYP1u X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This chip supports controlling the backlight via DCS commands, on at least some panels. Add support for doing so. Note this may only concern the NT36523*W* variant. Nobody knows, really, there's no docs. Signed-off-by: Konrad Dybcio Reviewed-by: Jianhua Lu Reviewed-by: Linus Walleij --- drivers/gpu/drm/panel/panel-novatek-nt36523.c | 67 +++++++++++++++++++++++= ++-- 1 file changed, 64 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-novatek-nt36523.c b/drivers/gpu/dr= m/panel/panel-novatek-nt36523.c index d30dbbfb67b1..3c81ec014eef 100644 --- a/drivers/gpu/drm/panel/panel-novatek-nt36523.c +++ b/drivers/gpu/drm/panel/panel-novatek-nt36523.c @@ -5,6 +5,7 @@ * Copyright (c) 2022, 2023 Jianhua Lu */ =20 +#include #include #include #include @@ -53,6 +54,7 @@ struct panel_desc { int (*init_sequence)(struct panel_info *pinfo); =20 bool is_dual_dsi; + bool has_dcs_backlight; }; =20 static inline struct panel_info *to_panel_info(struct drm_panel *panel) @@ -679,6 +681,58 @@ static const struct drm_panel_funcs nt36523_panel_func= s =3D { .get_modes =3D nt36523_get_modes, }; =20 +static int nt36523_bl_update_status(struct backlight_device *bl) +{ + struct mipi_dsi_device *dsi =3D bl_get_data(bl); + u16 brightness =3D backlight_get_brightness(bl); + int ret; + + dsi->mode_flags &=3D ~MIPI_DSI_MODE_LPM; + + ret =3D mipi_dsi_dcs_set_display_brightness_large(dsi, brightness); + if (ret < 0) + return ret; + + dsi->mode_flags |=3D MIPI_DSI_MODE_LPM; + + return 0; +} + +static int nt36523_bl_get_brightness(struct backlight_device *bl) +{ + struct mipi_dsi_device *dsi =3D bl_get_data(bl); + u16 brightness; + int ret; + + dsi->mode_flags &=3D ~MIPI_DSI_MODE_LPM; + + ret =3D mipi_dsi_dcs_get_display_brightness_large(dsi, &brightness); + if (ret < 0) + return ret; + + dsi->mode_flags |=3D MIPI_DSI_MODE_LPM; + + return brightness; +} + +static const struct backlight_ops nt36523_bl_ops =3D { + .update_status =3D nt36523_bl_update_status, + .get_brightness =3D nt36523_bl_get_brightness, +}; + +static struct backlight_device *nt36523_create_backlight(struct mipi_dsi_d= evice *dsi) +{ + struct device *dev =3D &dsi->dev; + const struct backlight_properties props =3D { + .type =3D BACKLIGHT_RAW, + .brightness =3D 512, + .max_brightness =3D 4095, + }; + + return devm_backlight_device_register(dev, dev_name(dev), dev, dsi, + &nt36523_bl_ops, &props); +} + static int nt36523_probe(struct mipi_dsi_device *dsi) { struct device *dev =3D &dsi->dev; @@ -730,9 +784,16 @@ static int nt36523_probe(struct mipi_dsi_device *dsi) mipi_dsi_set_drvdata(dsi, pinfo); drm_panel_init(&pinfo->panel, dev, &nt36523_panel_funcs, DRM_MODE_CONNECT= OR_DSI); =20 - ret =3D drm_panel_of_backlight(&pinfo->panel); - if (ret) - return dev_err_probe(dev, ret, "failed to get backlight\n"); + if (pinfo->desc->has_dcs_backlight) { + pinfo->panel.backlight =3D nt36523_create_backlight(dsi); + if (IS_ERR(pinfo->panel.backlight)) + return dev_err_probe(dev, PTR_ERR(pinfo->panel.backlight), + "Failed to create backlight\n"); + } else { + ret =3D drm_panel_of_backlight(&pinfo->panel); + if (ret) + return dev_err_probe(dev, ret, "Failed to get backlight\n"); + } =20 drm_panel_add(&pinfo->panel); =20 --=20 2.40.0 From nobody Wed Feb 11 23:10:53 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 85A81C77B6E for ; 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[83.9.3.23]) by smtp.gmail.com with ESMTPSA id x2-20020ac25dc2000000b004ec8de8ab3fsm1205865lfq.132.2023.04.12.12.46.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Apr 2023 12:46:15 -0700 (PDT) From: Konrad Dybcio Date: Wed, 12 Apr 2023 21:46:01 +0200 Subject: [PATCH 4/5] drm/panel: nt36523: Get orientation from OF MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230412-topic-lenovopanel-v1-4-00b25df46824@linaro.org> References: <20230412-topic-lenovopanel-v1-0-00b25df46824@linaro.org> In-Reply-To: <20230412-topic-lenovopanel-v1-0-00b25df46824@linaro.org> To: Jianhua Lu , Neil Armstrong , Sam Ravnborg , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski Cc: Marijn Suijten , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1681328765; l=1963; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=03x2QxCFOJ92tJUVDwn0/WKNOzd6yyjZ3Pdc9Flrqao=; b=bOzS7MQebAJyIKNBJY3A7fnCKU5niA9Qy5YrlRr2x0jODxMc3uyB2h2x7P0KnBW0UcoLPDYXQUe4 hhp5Aq77CF6aPHBYweuvlRFzFViGdpbDDMSpEjgLTDAOS8Bxu4bA X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some bright vendors mount their display panels upside down. Add the required pieces to allow for accounting for that. Signed-off-by: Konrad Dybcio Reviewed-by: Jianhua Lu Reviewed-by: Linus Walleij --- drivers/gpu/drm/panel/panel-novatek-nt36523.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/gpu/drm/panel/panel-novatek-nt36523.c b/drivers/gpu/dr= m/panel/panel-novatek-nt36523.c index 3c81ec014eef..db4b4af13ec1 100644 --- a/drivers/gpu/drm/panel/panel-novatek-nt36523.c +++ b/drivers/gpu/drm/panel/panel-novatek-nt36523.c @@ -31,6 +31,7 @@ struct panel_info { struct drm_panel panel; struct mipi_dsi_device *dsi[2]; const struct panel_desc *desc; + enum drm_panel_orientation orientation; =20 struct gpio_desc *reset_gpio; struct backlight_device *backlight; @@ -674,11 +675,19 @@ static int nt36523_get_modes(struct drm_panel *panel, return pinfo->desc->num_modes; } =20 +static enum drm_panel_orientation nt36523_get_orientation(struct drm_panel= *panel) +{ + struct panel_info *pinfo =3D to_panel_info(panel); + + return pinfo->orientation; +} + static const struct drm_panel_funcs nt36523_panel_funcs =3D { .disable =3D nt36523_disable, .prepare =3D nt36523_prepare, .unprepare =3D nt36523_unprepare, .get_modes =3D nt36523_get_modes, + .get_orientation =3D nt36523_get_orientation, }; =20 static int nt36523_bl_update_status(struct backlight_device *bl) @@ -784,6 +793,12 @@ static int nt36523_probe(struct mipi_dsi_device *dsi) mipi_dsi_set_drvdata(dsi, pinfo); drm_panel_init(&pinfo->panel, dev, &nt36523_panel_funcs, DRM_MODE_CONNECT= OR_DSI); =20 + ret =3D of_drm_get_panel_orientation(dev->of_node, &pinfo->orientation); + if (ret < 0) { + dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, ret); + return ret; + } + if (pinfo->desc->has_dcs_backlight) { pinfo->panel.backlight =3D nt36523_create_backlight(dsi); if (IS_ERR(pinfo->panel.backlight)) --=20 2.40.0 From nobody Wed Feb 11 23:10:53 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8FBF4C7619A for ; Wed, 12 Apr 2023 19:46:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230063AbjDLTqg (ORCPT ); Wed, 12 Apr 2023 15:46:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35590 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229983AbjDLTq0 (ORCPT ); Wed, 12 Apr 2023 15:46:26 -0400 Received: from mail-lf1-x12f.google.com (mail-lf1-x12f.google.com [IPv6:2a00:1450:4864:20::12f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB62776A9 for ; Wed, 12 Apr 2023 12:46:19 -0700 (PDT) Received: by mail-lf1-x12f.google.com with SMTP id t20so16111983lfd.5 for ; Wed, 12 Apr 2023 12:46:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1681328778; x=1683920778; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=Iutcvf8dWMSkz4y9PMQuquo9+n+lyx20D7RRy3/1qoA=; b=YAH90DVzJ8z3eJgogrBqAXlrLkclRQqUqgfxJik82c+Fd5077xCxhhn+RrshhMOfpz dsAsMOl8JqWEieGraPJ0IdZ1/a5SgMrawCKXMm/egmXo2Rb8kl+/teTjt94ze0QwzLV2 EgXBWaCl3Qr9phmczh6iPP31sKJB5mNsb4Mebt/tdPmLGM7dWo1J0iJatt4tdfaD0TPa qkzhpeScwwudUVsFHGEHTAub18dPSB9bd96g6/RKrDJ7m7j10vJLshDBBQ/SaYldrfPf 1sLU0xVZD+qbDe3xD4kDFYvGM7EiQ01GAhijN3JTLb7AFzQw9fhfck/xnnTjCupAOfRn O9qQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681328778; x=1683920778; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Iutcvf8dWMSkz4y9PMQuquo9+n+lyx20D7RRy3/1qoA=; b=I3SSR7aMa3qUBm1CKhvAXb+7z115pgB/Dmm1bOsP34Y7ToMswDroaGumRwIQam4lgj WZUE5N3yklRBRCI2Bir7jlOYMHu/NfIeLIKsERUfTujddFudpnEhTX4eKz+QPcawudei f7Ma4kUK6ISryz04nZKPJVam+KAGoLd1CdoiKRXXr1xe12hiavcPfWG4dVIJeclbOKm2 MupImJEv2TT9YAPGYdeDqkKLE3TjhcgqTb02X2EcKnIswvAoVS1HB4f9i3s8uc+ZHRCG KjBiyKKheb98HM/V+cv0uQBJBM5mCxSMQiDIzEVZICV9xdRcM60pfB0rkd2xUs/xTHNA h6Vw== X-Gm-Message-State: AAQBX9ct9w1mETxVh3w9lP7C/tEzWaIE2+kFtFoMi7FL0RLa8IqLzqyr yd6+d0xtY+szSh6de7PhHTinew== X-Google-Smtp-Source: AKy350b+qo6W77u+TSJAZqP1trreHp37akMmOsCBganlch72FKjIrOvuu+ZX3u4mKh4k6LQTQX1pMA== X-Received: by 2002:ac2:511d:0:b0:4d8:8ad1:a05f with SMTP id q29-20020ac2511d000000b004d88ad1a05fmr7664lfb.48.1681328777744; Wed, 12 Apr 2023 12:46:17 -0700 (PDT) Received: from [192.168.1.101] (abxj23.neoplus.adsl.tpnet.pl. [83.9.3.23]) by smtp.gmail.com with ESMTPSA id x2-20020ac25dc2000000b004ec8de8ab3fsm1205865lfq.132.2023.04.12.12.46.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Apr 2023 12:46:17 -0700 (PDT) From: Konrad Dybcio Date: Wed, 12 Apr 2023 21:46:02 +0200 Subject: [PATCH 5/5] drm/panel: nt36523: Add Lenovo J606F panel MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230412-topic-lenovopanel-v1-5-00b25df46824@linaro.org> References: <20230412-topic-lenovopanel-v1-0-00b25df46824@linaro.org> In-Reply-To: <20230412-topic-lenovopanel-v1-0-00b25df46824@linaro.org> To: Jianhua Lu , Neil Armstrong , Sam Ravnborg , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski Cc: Marijn Suijten , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1681328765; l=22561; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=a8GsYeAXGtH6jMRGuaf0r3p1JnRRRNynGhK9xGe2JqI=; b=gvTudzkjiLXww3NmaDzC8ttSjTWWDTKlB0b4Au/w5rdKziWvznivnuWRdMSPZnPMlHHlT03UA2IX H6c2YLFWCnHRvFZ1Nu1B6EpLPrRaG3HiGfujIkdKp1pGXCZN3UFm X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some Lenovo J606F tablets come with a 2K (2000x1200) 60Hz 11" 5:3 video mode display. Add support for these panels. Signed-off-by: Konrad Dybcio Reviewed-by: Jianhua Lu Reviewed-by: Linus Walleij --- drivers/gpu/drm/panel/panel-novatek-nt36523.c | 491 ++++++++++++++++++++++= ++++ 1 file changed, 491 insertions(+) diff --git a/drivers/gpu/drm/panel/panel-novatek-nt36523.c b/drivers/gpu/dr= m/panel/panel-novatek-nt36523.c index db4b4af13ec1..4bf9f8db26ba 100644 --- a/drivers/gpu/drm/panel/panel-novatek-nt36523.c +++ b/drivers/gpu/drm/panel/panel-novatek-nt36523.c @@ -13,6 +13,8 @@ #include #include =20 +#include