From: Svyatoslav Ryhel <clamor95@gmail.com>
To: Neil Armstrong <neil.armstrong@linaro.org>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Douglas Anderson <dianders@chromium.org>,
Svyatoslav Ryhel <clamor95@gmail.com>,
Sam Ravnborg <sam@ravnborg.org>
Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org
Subject: [PATCH v3 1/7] dt-bindings: display: panel: properly document LG LD070WX3 panel
Date: Mon, 13 Oct 2025 08:55:36 +0300 [thread overview]
Message-ID: <20251013055543.43185-2-clamor95@gmail.com> (raw)
In-Reply-To: <20251013055543.43185-1-clamor95@gmail.com>
LG LD070WX3-SL01 was mistakenly documented as a simple DSI panel, which it
clearly is not. Address this by adding the proper schema for this panel.
There is only one user of this panel binding in the mainline Linux kernel,
which is the Nvidia tablet Tegra Note 7. Its panel is broken anyway since
it cannot initialize properly if the bootloader does not leave a
pre-initialized panel. It also cannot suspend or re-initialize properly,
since no DSI configuration is set and it has a loose regulator which
relies on an always-on property rather than being hooked to the panel
where it belongs.
Tegra Note 7 device tree is adjusted as a part of this series.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
---
.../display/panel/lg,ld070wx3-sl01.yaml | 60 +++++++++++++++++++
.../display/panel/panel-simple-dsi.yaml | 2 -
2 files changed, 60 insertions(+), 2 deletions(-)
create mode 100644 Documentation/devicetree/bindings/display/panel/lg,ld070wx3-sl01.yaml
diff --git a/Documentation/devicetree/bindings/display/panel/lg,ld070wx3-sl01.yaml b/Documentation/devicetree/bindings/display/panel/lg,ld070wx3-sl01.yaml
new file mode 100644
index 000000000000..0f0b9079f199
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/lg,ld070wx3-sl01.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/lg,ld070wx3-sl01.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LG Corporation 7" WXGA TFT LCD panel
+
+maintainers:
+ - Svyatoslav Ryhel <clamor95@gmail.com>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: lg,ld070wx3-sl01
+
+ reg:
+ maxItems: 1
+
+ vdd-supply: true
+ vcc-supply: true
+
+ backlight: true
+ port: true
+
+required:
+ - compatible
+ - vdd-supply
+ - vcc-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "lg,ld070wx3-sl01";
+ reg = <0>;
+
+ vdd-supply = <&vdd_3v3_lcd>;
+ vcc-supply = <&vcc_1v8_lcd>;
+
+ backlight = <&backlight>;
+
+ port {
+ endpoint {
+ remote-endpoint = <&dsi0_out>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
index 9b92a05791cc..f9f1e76a810c 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
@@ -42,8 +42,6 @@ properties:
- kingdisplay,kd097d04
# LG ACX467AKM-7 4.95" 1080×1920 LCD Panel
- lg,acx467akm-7
- # LG Corporation 7" WXGA TFT LCD panel
- - lg,ld070wx3-sl01
# LG Corporation 5" HD TFT LCD panel
- lg,lh500wx1-sd03
# Lincoln LCD197 5" 1080x1920 LCD panel
--
2.48.1
next prev parent reply other threads:[~2025-10-13 5:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-13 5:55 [PATCH v3 0/7] Add support for panels found in various Tegra devices Svyatoslav Ryhel
2025-10-13 5:55 ` Svyatoslav Ryhel [this message]
2025-10-13 5:55 ` [PATCH v3 2/7] gpu/drm: panel: add support for LG LD070WX3-SL01 MIPI DSI panel Svyatoslav Ryhel
2025-10-13 5:55 ` [PATCH v3 3/7] ARM: tn7: adjust panel node Svyatoslav Ryhel
2025-10-13 5:55 ` [PATCH v3 4/7] dt-bindings: display: panel: document Samsung LTL106AL01 simple panel Svyatoslav Ryhel
2025-10-13 5:55 ` [PATCH v3 5/7] gpu/drm: panel: simple-panel: add Samsung LTL106AL01 LVDS panel support Svyatoslav Ryhel
2025-10-13 5:55 ` [PATCH v3 6/7] dt-bindings: display: panel: document Samsung LTL106HL02 MIPI DSI panel Svyatoslav Ryhel
2025-10-13 5:55 ` [PATCH v3 7/7] gpu/drm: panel: add Samsung LTL106HL02 MIPI DSI panel driver Svyatoslav Ryhel
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