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From: Stephan Gerhold <stephan.gerhold@linaro.org>
To: Neil Armstrong <neil.armstrong@linaro.org>,
	 Bjorn Andersson <andersson@kernel.org>,
	 Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: Jessica Zhang <quic_jesszhan@quicinc.com>,
	 Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	 Douglas Anderson <dianders@chromium.org>,
	dri-devel@lists.freedesktop.org,  devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,  linux-arm-msm@vger.kernel.org,
	Abel Vesa <abel.vesa@linaro.org>,
	 Johan Hovold <johan@kernel.org>
Subject: [PATCH 2/5] drm/panel: samsung-atna33xc20: Add compatible for ATNA45AF01
Date: Wed, 10 Jul 2024 19:04:58 +0200	[thread overview]
Message-ID: <20240710-x1e80100-crd-backlight-v1-2-eb242311a23e@linaro.org> (raw)
In-Reply-To: <20240710-x1e80100-crd-backlight-v1-0-eb242311a23e@linaro.org>

The Samsung ATNA45AF01 panel needs exactly the same non-standard power
sequence as the Samsung ATNA33XC20 panel for backlight to work properly.
Add the new "samsung,atna45af01" compatible to the driver to make it handle
these panels as well.

While ATNA45AF01 would also work with "samsung,atna33xc20" as a fallback
compatible, the original submission of the compatible in commit
4bfe6c8f7c23 ("drm/panel-simple: Add Samsung ATNA33XC20") had the timings
and resolution hardcoded. These would not work for ATNA45AF01.

Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
---
 drivers/gpu/drm/panel/panel-samsung-atna33xc20.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c b/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
index 9a482a744b8c..fd56fd02df87 100644
--- a/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
+++ b/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
@@ -333,6 +333,7 @@ static void atana33xc20_remove(struct dp_aux_ep_device *aux_ep)
 
 static const struct of_device_id atana33xc20_dt_match[] = {
 	{ .compatible = "samsung,atna33xc20", },
+	{ .compatible = "samsung,atna45af01", },
 	{ /* sentinal */ }
 };
 MODULE_DEVICE_TABLE(of, atana33xc20_dt_match);

-- 
2.44.1


  parent reply	other threads:[~2024-07-10 17:05 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-10 17:04 [PATCH 0/5] drm/panel: atna33xc20: Fix the Samsung ATNA45AF01 panel Stephan Gerhold
2024-07-10 17:04 ` [PATCH 1/5] dt-bindings: display: panel: samsung,atna33xc20: Document ATNA45AF01 Stephan Gerhold
2024-07-10 17:35   ` Doug Anderson
2024-07-10 19:03     ` Stephan Gerhold
2024-07-10 19:16       ` Doug Anderson
2024-07-12 10:11         ` Stephan Gerhold
2024-07-11  6:27     ` Krzysztof Kozlowski
2024-07-11  6:25   ` Krzysztof Kozlowski
2024-07-10 17:04 ` Stephan Gerhold [this message]
2024-07-10 17:35   ` [PATCH 2/5] drm/panel: samsung-atna33xc20: Add compatible for ATNA45AF01 Doug Anderson
2024-07-10 17:04 ` [PATCH 3/5] Revert "drm/panel-edp: Add SDC ATNA45AF01" Stephan Gerhold
2024-07-10 17:35   ` Doug Anderson
2024-07-10 17:05 ` [PATCH 4/5] arm64: dts: qcom: x1e80100-crd: Fix backlight Stephan Gerhold
2024-07-10 22:07   ` Konrad Dybcio
2024-07-10 17:05 ` [PATCH 5/5] arm64: defconfig: Add CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20 Stephan Gerhold

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