Add the device tree bindings for Truly NT35597 panel.
This panel supports both single DSI and dual DSI.

However, this patch series supports only dual DSI.

Changes in v4:
  - None

Signed-off-by: Abhinav Kumar <abhin...@codeaurora.org>
---
 .../devicetree/bindings/display/truly,nt35597.txt  | 69 ++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/truly,nt35597.txt

diff --git a/Documentation/devicetree/bindings/display/truly,nt35597.txt 
b/Documentation/devicetree/bindings/display/truly,nt35597.txt
new file mode 100644
index 0000000..5d297b8
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/truly,nt35597.txt
@@ -0,0 +1,69 @@
+Truly model NT35597 1440x2560 DSI Panel
+
+Required properties:
+- compatible: should be "truly,nt35597"
+- vdda-supply: phandle of the regulator that provides the supply voltage
+  Power IC supply
+- vdispp-supply: phandle of the regulator that provides the supply voltage
+  for positive LCD bias
+- vdispn-supply: phandle of the regulator that provides the supply voltage
+  for negative LCD bias
+- reset-gpios: phandle of gpio for reset line
+  This should be 8mA, gpio can be configured using mux, pinctrl, pinctrl-names
+- mode-gpios: phandle of the gpio for choosing the mode of the display
+  for single DSI or Dual DSI
+  This should be low for dual DSI and high for single DSI mode
+- display-timings: Node for the Panel timings
+- ports: This device has two video ports driven by two DSIs. Their connections
+  are modelled using the OF graph bindings specified in
+  Documentation/devicetree/bindings/graph.txt.
+  - port@0: DSI input port driven by master DSI
+  - port@1: DSI input port driven by secondary DSI
+
+Example:
+
+       dsi@ae94000 {
+               panel@0 {
+                       compatible = "truly,nt35597";
+                       reg = <0>;
+                       vdda-supply = <&pm8998_l14>;
+                       vdispp-supply = <&lab_regulator>;
+                       vdispn-supply = <&ibb_regulator>;
+                       pinctrl-names = "default", "suspend";
+                       pinctrl-0 = <&dpu_dsi_active>;
+                       pinctrl-1 = <&dpu_dsi_suspend>;
+
+                       reset-gpios = <&tlmm 6 0>;
+                       mode-gpios = <&tlmm 52 0>;
+                       display-timings {
+                               timing0: timing-0 {
+                                       clock-frequency = <268316138>;
+                                       hactive = <1440>;
+                                       vactive = <2560>;
+                                       hfront-porch = <200>;
+                                       hback-porch = <64>;
+                                       hsync-len = <32>;
+                                       vfront-porch = <8>;
+                                       vback-porch = <7>;
+                                       vsync-len = <1>;
+                               };
+                       };
+                       ports {
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               port@0 {
+                                       reg = <0>;
+                                       panel0_in: endpoint {
+                                               remote-endpoint = <&dsi0_out>;
+                                       };
+                               };
+
+                               port@1 {
+                                       reg = <1>;
+                                       panel1_in: endpoint {
+                                               remote-endpoint = <&dsi1_out>;
+                                       };
+                               };
+                       };
+               };
+       };
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

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