From: David Lechner <david@lechnology.com>
To: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>,
limor@ladyada.net, David Lechner <david@lechnology.com>,
linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>
Subject: [PATCH v4 2/3] dt-bindings: Add binding for Sitronix ST7735R display panels
Date: Mon, 1 Jan 2018 13:02:15 -0600 [thread overview]
Message-ID: <1514833336-22564-3-git-send-email-david@lechnology.com> (raw)
In-Reply-To: <1514833336-22564-1-git-send-email-david@lechnology.com>
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
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;
+ };
--
2.7.4
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next prev parent reply other threads:[~2018-01-01 19:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-01 19:02 [PATCH v4 0/3] DRM driver for Sitronix ST7735R display panels David Lechner
2018-01-01 19:02 ` [PATCH v4 1/3] dt-bindings: add jianda vendor prefix David Lechner
2018-01-01 19:02 ` David Lechner [this message]
2018-01-02 9:41 ` [PATCH v4 2/3] dt-bindings: Add binding for Sitronix ST7735R display panels Linus Walleij
2018-01-01 19:02 ` [PATCH v4 3/3] drm/tinydrm: add driver for ST7735R panels David Lechner
2018-01-02 9:42 ` Linus Walleij
[not found] ` <CACRpkdb8Er5THyufO5y3q+5HXv18OopdPEYPbZKpCCNtYvXWgw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-03 13:01 ` Noralf Trønnes
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