[PATCH v4 1/2] dt-binding: Add DSI/LVDS TC358775 bridge bindings

[Vinay Simha BN]

This driver is tested with two panels with Apq8016-IFC6309 board
https://www.inforcecomputing.com/products/single-board-computers-sbc/qualcomm-snapdragon-410-inforce-6309-micro-sbc

1. 1366x768 at 60 auo,b101xtn01 data-mapping = "jeida-24"
2. 800x480 at 60 innolux,at070tn92 data-mapping = "vesa-24"

Signed-off-by: Vinay Simha BN <simhavcs at gmail.com>

---
v1:
 Initial version wast .txt file

v2:
 From txt to yaml file format

v3:
* Andrzej Hajda review comments incorporated
  dual port lvds implemented

* Laurent Pinchart review comments incorporated
  dsi lanes property removed and it is dynamically
  picked from the dsi ports
  VESA/JEIDA format picked from panel-lvds dts
---
 .../display/bridge/toshiba,tc358775.yaml      | 204 ++++++++++++++++++
 1 file changed, 204 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml

diff --git a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml
new file mode 100644
index 000000000000..ec53d62d408b
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml
@@ -0,0 +1,204 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/toshiba,tc358775.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Toshiba TC358775 DSI to LVDS bridge bindings
+
+maintainers:
+ - Vinay Simha BN <simhavcs at gmail.com>
+
+description: |
+ This binding supports DSI to LVDS bridge TC358775
+
+properties:
+  compatible:
+    const: toshiba,tc358775
+
+  reg:
+    maxItems: 1
+    description: i2c address of the bridge, 0x0f
+
+  vdd-supply:
+    maxItems: 1
+    description:  1.2V LVDS Power Supply
+
+  vddio-supply:
+    maxItems: 1
+    description: 1.8V IO Power Supply
+
+  stby-gpios:
+    maxItems: 1
+    description: Standby pin, Low active
+
+  reset-gpios:
+    maxItems: 1
+    description: Hardware reset, Low active
+
+  ports:
+    type: object
+    description:
+      A node containing input and output port nodes with endpoint definitions
+      as documented in
+      Documentation/devicetree/bindings/media/video-interfaces.txt
+    properties:
+      "#address-cells":
+        const: 1
+
+      "#size-cells":
+        const: 0
+
+      port at 0:
+        type: object
+        description: |
+          DSI Input. The remote endpoint phandle should be a
+          reference to a valid mipi_dsi_host device node.
+
+      port at 1:
+        type: object
+        description: |
+          Video port for LVDS output (panel or connector).
+
+      port at 2:
+        type: object
+        description: |
+          Video port for Dual link LVDS output (panel or connector).
+
+    required:
+      - port at 0
+      - port at 1
+
+required:
+ - compatible
+ - reg
+ - vdd-supply
+ - vddio-supply
+ - stby-gpios
+ - reset-gpios
+ - ports
+
+examples:
+ - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c at 78b8000 {
+        /* On High speed expansion */
+        label = "HS-I2C2";
+        reg = <0x078b8000 0x500>;
+        clock-frequency = <400000>; /* fastmode operation */
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        tc_bridge: bridge at f {
+            compatible = "toshiba,tc358775";
+            reg = <0x0f>;
+
+            vdd-supply = <&pm8916_l2>;
+            vddio-supply = <&pm8916_l6>;
+
+            stby-gpios = <&msmgpio 99 GPIO_ACTIVE_LOW>;
+            reset-gpios = <&msmgpio 72 GPIO_ACTIVE_LOW>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port at 0 {
+                    reg = <0>;
+                    d2l_in_test: endpoint {
+                        remote-endpoint = <&dsi0_out>;
+                    };
+                };
+
+                port at 1 {
+                    reg = <1>;
+                    lvds_out: endpoint {
+                        remote-endpoint = <&panel_in>;
+                    };
+                };
+            };
+        };
+    };
+
+    dsi at 1a98000 {
+        reg = <0x1a98000 0x25c>;
+        reg-names = "dsi_ctrl";
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+            port at 1 {
+                reg = <1>;
+                dsi0_out: endpoint {
+                    remote-endpoint = <&d2l_in_test>;
+                        data-lanes = <0 1 2 3>;
+                };
+             };
+         };
+     };
+
+ - |
+    i2c at 78b8000 {
+        /* On High speed expansion */
+        label = "HS-I2C2";
+        reg = <0x078b8000 0x500>;
+        clock-frequency = <400000>; /* fastmode operation */
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        tc_bridge_dual: bridge at f {
+            compatible = "toshiba,tc358775";
+            reg = <0x0f>;
+
+            vdd-supply = <&pm8916_l2>;
+            vddio-supply = <&pm8916_l6>;
+
+            stby-gpios = <&msmgpio 99 GPIO_ACTIVE_LOW>;
+            reset-gpios = <&msmgpio 72 GPIO_ACTIVE_LOW>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port at 0 {
+                    reg = <0>;
+                    d2l_in_dual: endpoint {
+                        remote-endpoint = <&dsi0_out_dual>;
+                    };
+                };
+
+                port at 1 {
+                    reg = <1>;
+                    lvds0_out: endpoint {
+                        remote-endpoint = <&panel_in0>;
+                    };
+                };
+
+                port at 2 {
+                    reg = <2>;
+                    lvds1_out: endpoint {
+                        remote-endpoint = <&panel_in1>;
+                    };
+                };
+            };
+        };
+    };
+
+    dsi at 1a98000 {
+        reg = <0x1a98000 0x25c>;
+        reg-names = "dsi_ctrl";
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+            port at 1 {
+                reg = <1>;
+                dsi0_out_dual: endpoint {
+                    remote-endpoint = <&d2l_in_dual>;
+                        data-lanes = <0 1 2 3>;
+                };
+             };
+         };
+     };
+...
-- 
2.17.1