Himax HX8837 is a secondary display controller used to drive the panel
on OLPC platforms.
Signed-off-by: Lubomir Rintel <lkund...@v3.sk>
---
Changes since v3:
- Moved to bindings/display/
- Added the ports
- Removed Pavel's Ack, because the changes are substantial
Changes since v2:
- s/betweend/between/
Changes since v1:
- s/load-gpio/load-gpios/
- Use interrupt bindings instead of gpio for the IRQ
---
.../bindings/display/bridge/himax,hx8837.txt | 44 +++++++++++++++++++
1 file changed, 44 insertions(+)
create mode 100644
Documentation/devicetree/bindings/display/bridge/himax,hx8837.txt
diff --git a/Documentation/devicetree/bindings/display/bridge/himax,hx8837.txt
b/Documentation/devicetree/bindings/display/bridge/himax,hx8837.txt
new file mode 100644
index 000000000000..c52274f05692
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/himax,hx8837.txt
@@ -0,0 +1,44 @@
+HX8837 Display Controller
+
+Required properties:
+- compatible: Should be "himax,hx8837".
+- reg: I2C address, must be 0x0d
+- stat-gpios: gpio specifier of DCON_STAT0 and DCON_STAT1 pins (active high)
+- load-gpios: gpio specifier of DCON_LOAD pin (active high)
+- interrupt: interrupt specifier of DCON_IRQ pin (edge falling)
+
+Required nodes:
+- ports: contains port nodes with endpoints, as described in
+ Documentation/devicetree/bindings/graph.txt
+ Port 0's endpoint is connected to the LCD controller's RGB data output
+ endpoint.
+ Port 1's endpoint is connected to the panel's input endpoint.
+
+Example:
+ dcon@d {
+ compatible = "himax,hx8837";
+ reg = <0x0d>;
+ stat-gpios = <&gpio 100 GPIO_ACTIVE_HIGH
+ &gpio 101 GPIO_ACTIVE_HIGH>;
+ load-gpios = <&gpio 142 GPIO_ACTIVE_HIGH>;
+ interrupts = <&gpio 124 IRQ_TYPE_EDGE_FALLING>;
+
+ ports {
+ #address-cells = <0x01>;
+ #size-cells = <0x00>;
+
+ port@0 {
+ reg = <0x00>;
+ dcon_rgb_in: endpoint {
+ remote-endpoint = <&lcd0_rgb_out>;
+ };
+ };
+
+ port@1 {
+ reg = <0x01>;
+ dcon_gettl_out: endpoint {
+ remote-endpoint = <&panel_dettl_in>;
+ };
+ };
+ };
+ };
--
2.19.1
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