From nobody Mon Feb 9 07:39:41 2026 Received: from mail-pg1-f178.google.com (mail-pg1-f178.google.com [209.85.215.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B77A951022 for ; Sat, 1 Nov 2025 04:01:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.178 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761969667; cv=none; b=cl5aIUSijNK4426JxJ6e7vP8ROmUgzrkMk4HVNJU/xstJ7zkIIIVtCYgaOk9W7iJuPG/s293OdkmYVsEo9Qa++epmhk6fgwdd+uIWMFqYnpQLv2oZoy2JMl5iVJ7swgCfwuwCXuS6xU5/752zlBrSWxSEOJM9fw9P90Ez0p+ehw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761969667; c=relaxed/simple; bh=f3tRwY94wYfkGc/suijZkyKN4hKH9sRRpObMAYHy1i0=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=INxUWeT902hyNghwwRjgQuqWFOYIvi7F80dNg6fEyN+XMVazHxdVzeIFsVFDRqxGLoNLT1hQ2mPrTJ902jtRIE0lfGN4Snx2IwHf061NcGey2b1UPcOcC0jUgYFkwiMK/nttlD7FoSM/pREb7KEkA7SCbmUOz0zHN95xBtluvi8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=compal.corp-partner.google.com; spf=pass smtp.mailfrom=compal.corp-partner.google.com; dkim=pass (2048-bit key) header.d=compal-corp-partner-google-com.20230601.gappssmtp.com header.i=@compal-corp-partner-google-com.20230601.gappssmtp.com header.b=KTvNTpCn; arc=none smtp.client-ip=209.85.215.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=compal.corp-partner.google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=compal.corp-partner.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=compal-corp-partner-google-com.20230601.gappssmtp.com header.i=@compal-corp-partner-google-com.20230601.gappssmtp.com header.b="KTvNTpCn" Received: by mail-pg1-f178.google.com with SMTP id 41be03b00d2f7-b4fb8d3a2dbso2311335a12.3 for ; Fri, 31 Oct 2025 21:01:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=compal-corp-partner-google-com.20230601.gappssmtp.com; s=20230601; t=1761969663; x=1762574463; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=XBf5/4PIi/TVU5oxmQ/qOw5ZlkbtFKWT8j+z39lbocw=; b=KTvNTpCnqSYMqZqxSF3fLXYVNOeeFJVDqFYI3msMlW1NlUWXvkH167F4sgaLj+5sgQ r4raNyI/uIno8LbyIuSqVY35IeLyFTD05gzRk+sUpOxENAgpc92eq7T7Kkb88SXcXIr8 FHPExIF8Kx2dAi98U5SIhA7AOwTstFcoERtBwwJbB6RpT0+SlhAeTFYqUIy0tyvyJhE2 laYqGxj5o3g6V4mJfGD0S3kMlIL971TqJ4D/8wRMqR5xgv+Z8lEYJfGhWCjCHN3pkeFZ DQO392jyLyEJJvor9wi1Tu1Sk/KUN5Ul+Ibi7uRPmQR9/Gp9kYkugHqKsOijWvomexXP /oQA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761969663; x=1762574463; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=XBf5/4PIi/TVU5oxmQ/qOw5ZlkbtFKWT8j+z39lbocw=; b=UwcCfxWA85o2wTxsDaNtNIQwhm3T8s4AB2BWodFejfXpjb5RvAVQ6qQaj08rYGSdLm J8Id0wWbwHpyPyXAa2sx6erjGo9GnnxF8NQQbOMC1nupYBXLKPZgwl5PyflNTCvJpusV b56BcaKui/ELfLiYEroUmngciBtshJTL/sbSUFIU1RTcfc8v4DyxBH2Ly7x+nOgpoQzt dudR2XxOT6FCIMKtxp31EYO20luq1tfsOUTalyi726dzTEdK1EZFbsxYgn1MFFAcEN6W h7KmD7dVZ82vuUUOzU0aQISns31CQxPQ9b2g4RVOiOcR0lzl7sbHxKgwkuc2vZiNHHIy RhJQ== X-Gm-Message-State: AOJu0YwhcgkSUrb1ErxE0x8YtDZYTf2t/BQ1bAgZS4Z2miX8I5upI8Mx mtTWNpB9QGW1PqwtJ8nbxmq2uk86QoozSUHan7tmgOlKFzrc7Eu/vcaPcdiU0lwon+tOSZlTgz8 XdFIFi1fROg== X-Gm-Gg: ASbGncubRdNqiG/aTxWCjg3HfQ8pZ5e7WO2jso1MZiO94nlYZToxTUkzCVSTqeKsCrr 51xFf23F+kPZgotnydrMyUZwQz+aX0lWc5jZRrmo+1T2WJhhzjAu4BHXAdIjJLkMuntc5SJhEKL RGmGLGS286hW/d86JLhUmwFloEOK23ZV5Qr38u8BIFLfT2xJLTSTpYQQGGUs1QC/rWyIdi6clMj +HZzHNxbHY/qLEJl64Ee52h2idGjAB+KxuKgsq4qCTNNFOGJfLCQiKhOxnTj5Lq9W4jk9EiLJJC OexaT3itVscKUat5QeEZ1ChrvEtZ5QfPMJfDB8QkiG3XuUJ7aXOZvU2tQ0EezbQk5nvLd0lXcEY kgebjlPGMaIQez9+jE9sEdgVoqCxvEjS0FuQwTZ+lE3rTmxeZtBCSyFHeicxB3Rd1uuhAJJLvdJ N3EQM3B0+1Zb8n0Wlzi+Ox/hicW07ZiXRT0aw6ubeyYO+vtE8vFBz0q2AYM/OnDOufcZsnBK2yK lzZowfpbf1gc4T/30y+EhBr X-Google-Smtp-Source: AGHT+IGyIY45gXiMcurK9CvCmQ5ISfIMp4z7rdhImhGAODCiT+xwAiq16dsVlTY0Riz4IkD5f1h19g== X-Received: by 2002:a17:902:fc85:b0:294:faad:8c80 with SMTP id d9443c01a7336-2951a53f50amr67105715ad.61.1761969662620; Fri, 31 Oct 2025 21:01:02 -0700 (PDT) Received: from ajye-OMEN-by-HP-Laptop-S.compal.com (36-231-161-24.dynamic-ip.hinet.net. [36.231.161.24]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-295268b43d7sm40377355ad.35.2025.10.31.21.00.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 31 Oct 2025 21:01:02 -0700 (PDT) From: Ajye Huang To: linux-kernel@vger.kernel.org Cc: Douglas Anderson , Jani Nikula , Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , dri-devel@lists.freedesktop.org, Ajye Huang , jazhan@google.com Subject: [PATCH v2] drm/edid: add 6 bpc quirk to the Sharp LQ116M1JW10 Date: Sat, 1 Nov 2025 12:00:43 +0800 Message-Id: <20251101040043.3768848-1-ajye_huang@compal.corp-partner.google.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The Sharp LQ116M1JW105 reports that it supports 8 bpc modes, but it will happen display noise in some videos. So, limit it to 6 bpc modes. Signed-off-by: Ajye Huang Reviewed-by: Douglas Anderson --- changes from v1->v2: * Change EDID_QUIRK_FORCE_6BPC to BIT(EDID_QUIRK_FORCE_6BPC) drivers/gpu/drm/drm_edid.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index e2e85345aa9a..26bb7710a462 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -250,6 +250,9 @@ static const struct edid_quirk { EDID_QUIRK('S', 'V', 'R', 0x1019, BIT(EDID_QUIRK_NON_DESKTOP)), EDID_QUIRK('A', 'U', 'O', 0x1111, BIT(EDID_QUIRK_NON_DESKTOP)), =20 + /* LQ116M1JW10 displays noise when 8 bpc, but display fine as 6 bpc */ + EDID_QUIRK('S', 'H', 'P', 0x154c, BIT(EDID_QUIRK_FORCE_6BPC)), + /* * @drm_edid_internal_quirk entries end here, following with the * @drm_edid_quirk entries. --=20 2.25.1