diff mbox series

[v4,2/3] dt-bindings: Add binding for Sitronix ST7735R display panels

Message ID 1514833336-22564-3-git-send-email-david@lechnology.com
State Not Applicable, archived
Headers show
Series DRM driver for Sitronix ST7735R display panels | expand

Commit Message

David Lechner Jan. 1, 2018, 7:02 p.m. UTC 
This adds a new device tree binding for Sitronix ST7735R display panels,
such as the Adafruit 1.8" TFT.

Signed-off-by: David Lechner <david@lechnology.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---

v4 changes:
* none

v3 changes:
* compatible string is changed from "sitronix,st7735r-jd-t18003-t01" to
"jianda,jd-t18003-t01", "sitronix,st7735r"

v2 changes:
* none

 .../bindings/display/sitronix,st7735r.txt          | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/sitronix,st7735r.txt

Comments

Linus Walleij Jan. 2, 2018, 9:41 a.m. UTC | #1 
On Mon, Jan 1, 2018 at 8:02 PM, David Lechner <david@lechnology.com> wrote:

> This adds a new device tree binding for Sitronix ST7735R display panels,
> such as the Adafruit 1.8" TFT.
>
> Signed-off-by: David Lechner <david@lechnology.com>
> Reviewed-by: Rob Herring <robh@kernel.org>

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij
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diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/sitronix,st7735r.txt b/Documentation/devicetree/bindings/display/sitronix,st7735r.txt
new file mode 100644
index 0000000..f0a5090
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/sitronix,st7735r.txt
@@ -0,0 +1,35 @@ 
+Sitronix ST7735R display panels
+
+This binding is for display panels using a Sitronix ST7735R controller in SPI
+mode.
+
+Required properties:
+- compatible:	"jianda,jd-t18003-t01", "sitronix,st7735r"
+- dc-gpios:	Display data/command selection (D/CX)
+- reset-gpios:	Reset signal (RSTX)
+
+The node for this driver must be a child node of a SPI controller, hence
+all mandatory properties described in ../spi/spi-bus.txt must be specified.
+
+Optional properties:
+- rotation:	panel rotation in degrees counter clockwise (0,90,180,270)
+- backlight:	phandle of the backlight device attached to the panel
+
+Example:
+
+	backlight: backlight {
+		compatible = "gpio-backlight";
+		gpios = <&gpio 44 GPIO_ACTIVE_HIGH>;
+	}
+
+	...
+
+	display@0{
+		compatible = "jianda,jd-t18003-t01", "sitronix,st7735r";
+		reg = <0>;
+		spi-max-frequency = <32000000>;
+		dc-gpios = <&gpio 43 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&gpio 80 GPIO_ACTIVE_HIGH>;
+		rotation = <270>;
+		backlight = &backlight;
+	};