From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 51DCC2D86BA; Mon, 5 May 2025 22:56:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746485787; cv=none; b=mVMz9nAAP7e6sYn9rD54TEFWtz+55i6UVeKyRF9IFZbZGgkvrTdNKoYiv0ERKk6gIHgo8wmiw64mVOoGpv7k5Frrlsign++o44u0UIr4Mp9V5zwV07zKc5Fo+BYyhldp09P1HqqP3gtPhg6UmsplSOx8smyqi/2YeHQYmnQG/oU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746485787; c=relaxed/simple; bh=/FZSzGvvXFvyjUQqlRnoJZJp2TxUajuFUp//+i3ALVs=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=UhxkOvXF6TfOXUielAB6H0DwledAp7oX0EGG8gyod7+hgGRp7Vm+Ba6EXdGxJiOTyuUkeCbpukUuVlXh1JHQsKNCW7wc0wBDXvzx1p+rC1mhXfMu4ImGxCaWMrnC6BR1ed3LnqYxAnRpndrxyJ4FyWN16+jy8bXNikPRXalwz08= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nXeMpFG3; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nXeMpFG3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 10585C4CEED; Mon, 5 May 2025 22:56:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746485786; bh=/FZSzGvvXFvyjUQqlRnoJZJp2TxUajuFUp//+i3ALVs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nXeMpFG3R/HU2Mp0s/VUaUOPCMg4NSpLf6aRs0F5x3earTMfVRegMWtoK3Gf+fw+W HPoD1sCTI8st5VJ7r/ZgxbMYTvhrpXpImAzmgwhgi5a09LFrx5XZIr5Sklbt+CPNIc u2G8P/NpHc18EKTfjrBat034wXUFcYGsceLWpVhVVlmcVQH8ZsNoQhrGc6O2RZ8fUB kWh3CR3/h47qoOutI1AhTloqt5Q7ABBsROs0KD11xE07bcvKuxfHwg20rAIpfL9B09 euz/2qo7LoAXb9brTb2lhMbyJEEaYWmtc/RCiyHatZ4qcoRh3dlCMKCVLvsnnAvPai v6XmgruSRUIGQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Douglas Anderson , Neil Armstrong , Sasha Levin , maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 6.12 484/486] drm/panel-edp: Add Starry 116KHD024006 Date: Mon, 5 May 2025 18:39:20 -0400 Message-Id: <20250505223922.2682012-484-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250505223922.2682012-1-sashal@kernel.org> References: <20250505223922.2682012-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.12.26 Content-Transfer-Encoding: 8bit From: Douglas Anderson [ Upstream commit 749b5b279e5636cdcef51e15d67b77162cca6caa ] We have a few reports of sc7180-trogdor-pompom devices that have a panel in them that IDs as STA 0x0004 and has the following raw EDID: 00 ff ff ff ff ff ff 00 4e 81 04 00 00 00 00 00 10 20 01 04 a5 1a 0e 78 0a dc dd 96 5b 5b 91 28 1f 52 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 8e 1c 56 a0 50 00 1e 30 28 20 55 00 00 90 10 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fe 00 31 31 36 4b 48 44 30 32 34 30 30 36 0a 00 e6 We've been unable to locate a datasheet for this panel and our partner has not been responsive, but all Starry eDP datasheets that we can find agree on the same timing (delay_100_500_e200) so it should be safe to use that here instead of the super conservative timings. We'll still go a little extra conservative and allow `hpd_absent` of 200 instead of 100 because that won't add any real-world delay in most cases. We'll associate the string from the EDID ("116KHD024006") with this panel. Given that the ID is the suspicious value of 0x0004 it seems likely that Starry doesn't always update their IDs but the string will still work to differentiate if we ever need to in the future. Reviewed-by: Neil Armstrong Signed-off-by: Douglas Anderson Link: https://patchwork.freedesktop.org/patch/msgid/20250109142853.1.Ibcc3009933fd19507cc9c713ad0c99c7a9e4fe17@changeid Signed-off-by: Sasha Levin --- drivers/gpu/drm/panel/panel-edp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c index 767e47a2b0c14..663af985d1b38 100644 --- a/drivers/gpu/drm/panel/panel-edp.c +++ b/drivers/gpu/drm/panel/panel-edp.c @@ -1983,6 +1983,7 @@ static const struct edp_panel_entry edp_panels[] = { EDP_PANEL_ENTRY('S', 'H', 'P', 0x153a, &delay_200_500_e50, "LQ140T1JH01"), EDP_PANEL_ENTRY('S', 'H', 'P', 0x154c, &delay_200_500_p2e100, "LQ116M1JW10"), + EDP_PANEL_ENTRY('S', 'T', 'A', 0x0004, &delay_200_500_e200, "116KHD024006"), EDP_PANEL_ENTRY('S', 'T', 'A', 0x0100, &delay_100_500_e200, "2081116HHD028001-51D"), { /* sentinal */ } -- 2.39.5