ILI9341 supports both SPI input mode and parallel RGB input mode.
This commit adds parallel RGB input mode bindings.
Signed-off-by: Josef Lusticky <josef@xxxxxxxxxxx>
---
.../bindings/display/ilitek,ili9341.txt | 67 ++++++++++++++++---
1 file changed, 56 insertions(+), 11 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/ilitek,ili9341.txt b/Documentation/devicetree/bindings/display/ilitek,ili9341.txt
index 169b32e4ee4e..629f38a1d0cd 100644
--- a/Documentation/devicetree/bindings/display/ilitek,ili9341.txt
+++ b/Documentation/devicetree/bindings/display/ilitek,ili9341.txt
@@ -1,27 +1,72 @@
Ilitek ILI9341 display panels
-This binding is for display panels using an Ilitek ILI9341 controller in SPI
-mode.
+This binding is for display panels using an Ilitek ILI9341 controller.
+The display panels are supported in the following graphical input modes:
+- SPI input mode
+ MIPI-DBI Type 3 Option 1 or Option 3 is used to transfer
+ commands and graphical data
+- parallel RGB input mode
+ MIPI-DBI Type 3 Option 1 or Option 3 is used for commands
+ MIPI-DPI 18-bit parallel RGB connection is used to transfer
+ graphical data
-Required properties:
-- compatible: "adafruit,yx240qv29", "ilitek,ili9341"
-- dc-gpios: D/C pin
-- reset-gpios: Reset pin
+
+SPI input mode:
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.
+all mandatory properties described in spi/spi-bus.txt must be specified.
+
+Required properties in SPI input mode:
+- compatible: "adafruit,yx240qv29", "ilitek,ili9341"
+- backlight: phandle of the backlight device attached to the panel
+
+Optional properties in SPI input mode:
+- rotation: panel rotation in degrees counter clockwise (0,90,180,270)
+- dc-gpios: GPIO spec for the D/C pin, see gpio/gpio.txt
+- reset-gpios: GPIO spec for the reset pin, see gpio/gpio.txt
+
+
+Parallel RGB input mode:
+
+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.
+
+Required properties in parallel RGB input mode:
+- compatible: "displaytech,dt024ctft", "ilitek,ili9341"
+- backlight: phandle of the backlight device attached to the panel
+
+Optional properties in parallel RGB input mode:
+- dc-gpios: GPIO spec for the D/C pin, see gpio/gpio.txt
+- reset-gpios: GPIO spec for the reset pin, see gpio/gpio.txt
-Optional properties:
-- rotation: panel rotation in degrees counter clockwise (0,90,180,270)
-- backlight: phandle of the backlight device attached to the panel
+In parallel RGB input mode,
+the device node can contain one 'port' child node with one child
+'endpoint' node, according to the bindings defined in
+media/video-interfaces.txt. This node should describe panel's video bus.
-Example:
+
+Example in SPI input mode:
display@0{
compatible = "adafruit,yx240qv29", "ilitek,ili9341";
reg = <0>;
spi-max-frequency = <32000000>;
dc-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
+ backlight = <&backlight>;
rotation = <270>;
+ };
+
+Example in parallel RGB input mode:
+ panel@{
+ compatible = "displaytech,dt024ctft", "ilitek,ili9341";
+ reg = <0>;
+ spi-max-frequency = <32000000>;
+ dc-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
backlight = <&backlight>;
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&display_out>;
+ };
+ };
};
--
2.20.1
