[PATCH v3 01/10] dt-bindings: input: samsung,s3c6410-keypad: introduce compact binding

[Dmitry Torokhov]

The binding with a sub-node per each key is very verbose and is hard to
use with static device properties. Allow standard matrix keymap binding
in addition to the verbose one.

Acked-by: Conor Dooley <conor.dooley at microchip.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski at oss.qualcomm.com>
Reviewed-by: Linus Walleij <linusw at kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov at gmail.com>
---
 .../bindings/input/samsung,s3c6410-keypad.yaml     | 53 ++++++++++++++++++++--
 1 file changed, 50 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/samsung,s3c6410-keypad.yaml b/Documentation/devicetree/bindings/input/samsung,s3c6410-keypad.yaml
index a53569aa0ee7..2498c62444a1 100644
--- a/Documentation/devicetree/bindings/input/samsung,s3c6410-keypad.yaml
+++ b/Documentation/devicetree/bindings/input/samsung,s3c6410-keypad.yaml
@@ -37,6 +37,10 @@ properties:
 
   wakeup-source: true
 
+  keypad,num-columns: true
+  keypad,num-rows: true
+  linux,keymap: true
+
   linux,input-no-autorepeat:
     type: boolean
     description:
@@ -81,12 +85,33 @@ patternProperties:
       - keypad,row
       - linux,code
 
+dependencies:
+  linux,keymap: [ "keypad,num-columns", "keypad,num-rows" ]
+
 required:
   - compatible
   - reg
   - interrupts
-  - samsung,keypad-num-columns
-  - samsung,keypad-num-rows
+
+allOf:
+  - $ref: input.yaml#
+  - $ref: matrix-keymap.yaml#
+  - if:
+      required:
+        - linux,keymap
+    then:
+      properties:
+        samsung,keypad-num-columns: false
+        samsung,keypad-num-rows: false
+      patternProperties:
+        '^key-[0-9a-z]+$': false
+    else:
+      properties:
+        keypad,num-columns: false
+        keypad,num-rows: false
+      required:
+        - samsung,keypad-num-columns
+        - samsung,keypad-num-rows
 
 additionalProperties: false
 
@@ -94,8 +119,9 @@ examples:
   - |
     #include <dt-bindings/clock/exynos4.h>
     #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/input/input.h>
 
-    keypad at 100a0000 {
+    keypad1 at 100a0000 {
         compatible = "samsung,s5pv210-keypad";
         reg = <0x100a0000 0x100>;
         interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
@@ -119,3 +145,24 @@ examples:
             linux,code = <3>;
         };
     };
+  - |
+    #include <dt-bindings/clock/exynos4.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/input/input.h>
+
+    keypad2 at 100a0000 {
+        compatible = "samsung,s5pv210-keypad";
+        reg = <0x100a0000 0x100>;
+        interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&clock CLK_KEYIF>;
+        clock-names = "keypad";
+
+        keypad,num-rows = <2>;
+        keypad,num-columns = <8>;
+        linux,keymap = <
+          MATRIX_KEY(0, 3, 2)
+          MATRIX_KEY(0, 4, 3)
+        >;
+        linux,input-no-autorepeat;
+        wakeup-source;
+    };

-- 
2.55.0.795.g602f6c329a-goog