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[61.219.175.100]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-29498d26c13sm179027625ad.53.2025.10.30.02.44.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Oct 2025 02:44:40 -0700 (PDT) From: Ajye Huang To: linux-kernel@vger.kernel.org Cc: Douglas Anderson , Maarten Lankhorst , Maxime Ripard , David Airlie , Simona Vetter , dri-devel@lists.freedesktop.org, Ajye Huang Subject: [PATCH v1] drm/edid: add 6 bpc quirk to the Sharp LQ116M1JW10 Date: Thu, 30 Oct 2025 17:44:34 +0800 Message-Id: <20251030094434.1390143-1-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 Acked-by: Jani Nikula Reviewed-by: Douglas Anderson --- 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..a73d37fe7ea1 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, EDID_QUIRK_FORCE_6BPC), + /* * @drm_edid_internal_quirk entries end here, following with the * @drm_edid_quirk entries. --=20 2.25.1