linux-kernel - [PATCH v5 1/2] dt-bindings: panel: Add Sitronix ST7701 panel documentation

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Message-Id: <20181211154358.25293-1-jagan@amarulasolutions.com>
Date:   Tue, 11 Dec 2018 21:13:57 +0530
From:   Jagan Teki <jagan@...rulasolutions.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        devicetree@...r.kernel.org, linux-amarula@...rulasolutions.com,
        linux-sunxi <linux-sunxi@...glegroups.com>,
        Michael Trimarchi <michael@...rulasolutions.com>,
        Jagan Teki <jagan@...rulasolutions.com>
Subject: [PATCH v5 1/2] dt-bindings: panel: Add Sitronix ST7701 panel documentation

Techstar TS8550B MIPI DSI panel is 480x854, 2-lane MIPI DSI LCD panel
with inbuilt ST7701 chip.

The default regulator names in ST7701 chip is renamed in Techstar TS8550B
so, add specific binding names for them.

Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
---
Changes for v5:
- found the chip from vendor, so added new chip binding
- here is v4: https://patchwork.kernel.org/patch/10680333/

 .../display/panel/sitronix,st7701.txt         | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/sitronix,st7701.txt

diff --git a/Documentation/devicetree/bindings/display/panel/sitronix,st7701.txt b/Documentation/devicetree/bindings/display/panel/sitronix,st7701.txt
new file mode 100644
index 000000000000..ccd17597f1f6
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/sitronix,st7701.txt
@@ -0,0 +1,30 @@
+Sitronix ST7701 based LCD panels
+
+ST7701 designed for small and medium sizes of TFT LCD display, is
+capable of supporting up to 480RGBX864 in resolution. It provides
+several system interfaces like MIPI/RGB/SPI.
+
+Techstar TS8550B is 480x854, 2-lane MIPI DSI LCD panel which has
+inbuilt ST7701 chip.
+
+Required properties:
+- compatible: must be "sitronix,st7701" and one of
+  * "techstar,ts8550b"
+- reset-gpios: a GPIO phandle for the reset pin
+
+Required properties for techstar,ts8550b:
+- reg: DSI virtual channel used by that screen
+- VCC-supply: analog regulator for MIPI circuit
+- IOVCC-supply: I/O system regulator
+
+Optional properties:
+- backlight: phandle for the backlight control.
+
+panel@0 {
+	compatible = "techstar,ts8550b", "sitronix,st7701";
+	reg = <0>;
+	VCC-supply = <&reg_dldo2>;
+	IOVCC-supply = <&reg_dldo2>;
+	reset-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* LCD-RST: PD24 */
+	backlight = <&backlight>;
+};
-- 
2.18.0.321.gffc6fa0e3