From patchwork Wed Jul 10 17:04:56 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephan Gerhold X-Patchwork-Id: 13729505 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 47763C3DA42 for ; Wed, 10 Jul 2024 17:05:18 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B3A1B10E838; Wed, 10 Jul 2024 17:05:17 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.b="I3dvbHa5"; dkim-atps=neutral Received: from mail-wm1-f52.google.com (mail-wm1-f52.google.com [209.85.128.52]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0EA8210E838 for ; Wed, 10 Jul 2024 17:05:17 +0000 (UTC) Received: by mail-wm1-f52.google.com with SMTP id 5b1f17b1804b1-42793fc0a6dso67645e9.0 for ; Wed, 10 Jul 2024 10:05:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1720631115; x=1721235915; darn=lists.freedesktop.org; h=cc:to:content-transfer-encoding:mime-version:message-id:date :subject:from:from:to:cc:subject:date:message-id:reply-to; bh=UO6/lK5/7C6XDmsvIs3cVH295usofusy4WKu+UT3LKI=; b=I3dvbHa5AZsoRURRPNO27C/4Z46cyvMAnWZiD+gP+YxBOIO5qzfiZtUrapITUy3hVr FrSmkkpQRt9fKm8G/DNaZMs9UBq2CmQEb3/2JfvJy7GjI77alszaaTzw2QKKMB92oTYo IZjfJLa+cWHmaOF2lDsDGBkj/NiJBOR1IBEDwo8L8KALeV87Ybbey2OH/Z74CupSJAqJ Pcyx3mSc+rsKH0bd74gUfOfEDKm68jvMOhShFqQrTJDCoVwu5T+2CLKIkBQTwW5pDDuo ujiZziBjRSrt1c666nlkzFTtP5wh5YjNhwTHPaASaBLNaA2p+dHiHW57/NNNZPJPXTiP sUQQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720631115; x=1721235915; h=cc:to:content-transfer-encoding:mime-version:message-id:date :subject:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=UO6/lK5/7C6XDmsvIs3cVH295usofusy4WKu+UT3LKI=; b=HsTw+/VBS5O7qqdQZ091EHsPH/3aVyFbVKmEzacwACn0Wov985sqfq31w4bFSlJRjR lYwkk8X3DiRMD5jUhwqZO2bhdQcTmvgMU/yCcT9OPzTmRUpJlPR4kT2q8eXFhkWrdCPy UhOygmYykDbx6RdLNrHfVnmFTE2vJUJ5mJ2Uyli9JFNXnZ4opVi3U+fkmzi8DosZ+9Kt mdBbdSYfq6KQiBDoBNyxNwhm/5ZKxZk4BP3HNSFiPum7RqOfPDLmIWgnhfbuuWieuqFz E969MUPsSDXI9JBOBx2pfGjorOe+vfmkgEHpK6HSqZR3v7HeG+br0E4XI53zGWARE0OV MKVA== X-Forwarded-Encrypted: i=1; AJvYcCXX1590Rzn8ThYlVMCgWsGdi231z+ny9eVUbbe28K4SztWi1KKFucTDlITEQyzDIRJRMLu2yJ4RVaeCwngRxtKiIoCPwk5+ynXafrfpPxrr X-Gm-Message-State: AOJu0YxVME8Il9qKqweOwxdYBYvUzQ4W9+Z26j/ccEYMj/0gg0g0Z1Mi Bb9TEYPzdP64mwzEz0n+XfbHPImTeHulagPU5n2Lr75MVFkx97RcnPqiy9fDdbM= X-Google-Smtp-Source: AGHT+IEZ/vduzwwhO5K4kQPX85w5VJ3dB+TYQDHXeHNJPj2YvvMVSizSFMwuGwYgtxvCPlkuMJjVQA== X-Received: by 2002:a05:600c:5345:b0:426:602d:a243 with SMTP id 5b1f17b1804b1-426707d8a90mr42891675e9.16.1720631115301; Wed, 10 Jul 2024 10:05:15 -0700 (PDT) Received: from [127.0.0.2] ([2a02:2454:ff1f:b240:65e6:93ca:5f80:ea9b]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-367cde7dedfsm5838446f8f.24.2024.07.10.10.05.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Jul 2024 10:05:14 -0700 (PDT) From: Stephan Gerhold Subject: [PATCH 0/5] drm/panel: atna33xc20: Fix the Samsung ATNA45AF01 panel Date: Wed, 10 Jul 2024 19:04:56 +0200 Message-Id: <20240710-x1e80100-crd-backlight-v1-0-eb242311a23e@linaro.org> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIADi/jmYC/x3MSwqAMAwA0atI1gbSKv6uIi60TTUoKq2IULy7x eVbzEQI7IUDdFkEz7cEOfYElWdglnGfGcUmgyZdUq0IH8UNKSI03uI0mnWTebmwKrRrJ9cWFTt I8enZyfOP++F9P56MXmJoAAAA To: Neil Armstrong , Bjorn Andersson , Konrad Dybcio Cc: Jessica Zhang , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Douglas Anderson , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Abel Vesa , Johan Hovold X-Mailer: b4 0.13.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The backlight of the Samsung ATNA45AF01 panel used in the Qualcomm X1E80100 CRD does not work correctly with the current display panel configuration and drivers: It works after boot, but once the display gets disabled it is not possible to get it back on. It turns out that the ATNA45AF01 panel needs exactly the same non-standard power sequence as implemented for ATNA33XC20 in the panel-samsung-atna33xc20 driver. Move the ATNA45AF01 panel from the generic panel-edp driver to the panel-samsung-atna33xc20 driver and fix the panel configuration in the x1e80100-crd device tree to make the panel work correctly. The DT changes are included here for reference and easier testing, I assume Bjorn or Konrad will pick them up after the DRM panel changes were applied. Signed-off-by: Stephan Gerhold --- Stephan Gerhold (5): dt-bindings: display: panel: samsung,atna33xc20: Document ATNA45AF01 drm/panel: samsung-atna33xc20: Add compatible for ATNA45AF01 Revert "drm/panel-edp: Add SDC ATNA45AF01" arm64: dts: qcom: x1e80100-crd: Fix backlight arm64: defconfig: Add CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20 .../bindings/display/panel/samsung,atna33xc20.yaml | 6 +++++- arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 17 +++++++++++++++-- arch/arm64/configs/defconfig | 1 + drivers/gpu/drm/panel/panel-edp.c | 2 -- drivers/gpu/drm/panel/panel-samsung-atna33xc20.c | 1 + 5 files changed, 22 insertions(+), 5 deletions(-) --- base-commit: 523b23f0bee3014a7a752c9bb9f5c54f0eddae88 change-id: 20240710-x1e80100-crd-backlight-632f9bf936ef Best regards,