linux-kernel - [PATCH v4 2/4] dt-bindings: display: Add bindings for EBBG FT8719

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Message-ID: <BY5PR02MB7009E821B0D4AC20E11F8F13D9DF9@BY5PR02MB7009.namprd02.prod.outlook.com>
Date:   Wed,  1 Jun 2022 13:54:08 +0530
From:   Joel Selvaraj <jo@...amily.in>
To:     Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Stanislav Jakubek <stano.jakubek@...il.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Corentin Labbe <clabbe@...libre.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Hao Fang <fanghao11@...wei.com>
Cc:     dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Joel Selvaraj <jo@...amily.in>
Subject: [PATCH v4 2/4] dt-bindings: display: Add bindings for EBBG FT8719

Add bindings for the EBBG FT8719 6.18" 2246x1080 DSI video mode panel,
which can be found on some Xiaomi Poco F1 phones. The backlight is
managed through the QCOM WLED driver.

Signed-off-by: Joel Selvaraj <jo@...amily.in>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
---
Changes in v2: (Krzysztof Kozlowski's Suggestions)
 - Specify maxItems for reg
 - Cleanup and simplify the panel properties
 - In example change "|+" to "|' and "dsi0" to "dsi"

 .../bindings/display/panel/ebbg,ft8719.yaml   | 74 +++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/ebbg,ft8719.yaml

diff --git a/Documentation/devicetree/bindings/display/panel/ebbg,ft8719.yaml b/Documentation/devicetree/bindings/display/panel/ebbg,ft8719.yaml
new file mode 100644
index 000000000000..80deedc01c7c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/ebbg,ft8719.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/ebbg,ft8719.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: EBBG FT8719 MIPI-DSI LCD panel
+
+maintainers:
+  - Joel Selvaraj <jo@...amily.in>
+
+description: |
+  The FT8719 panel from EBBG is a FHD+ LCD display panel with a resolution
+  of 1080x2246. It is a video mode DSI panel. The backlight is managed
+  through the QCOM WLED driver.
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    const: ebbg,ft8719
+
+  reg:
+    maxItems: 1
+    description: DSI virtual channel of the peripheral
+
+  vddio-supply:
+    description: power IC supply regulator
+
+  vddpos-supply:
+    description: positive boost supply regulator
+
+  vddneg-supply:
+    description: negative boost supply regulator
+
+required:
+  - compatible
+  - reg
+  - vddio-supply
+  - vddpos-supply
+  - vddneg-supply
+  - reset-gpios
+  - port
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      panel@0 {
+        compatible = "ebbg,ft8719";
+        reg = <0>;
+
+        vddio-supply = <&vreg_l14a_1p88>;
+        vddpos-supply = <&lab>;
+        vddneg-supply = <&ibb>;
+
+        reset-gpios = <&tlmm 6 GPIO_ACTIVE_LOW>;
+
+        backlight = <&pmi8998_wled>;
+
+        port {
+          ebbg_ft8719_in_0: endpoint {
+            remote-endpoint = <&dsi0_out>;
+          };
+        };
+      };
+    };
-- 
2.36.1