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* [PATCH v7 1/2] dt-bindings: input: cros-ec-keyb: Add a new property
@ 2021-01-15 20:24 Philip Chen
  2021-01-15 20:34 ` Stephen Boyd
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Philip Chen @ 2021-01-15 20:24 UTC (permalink / raw)
  To: LKML, dmitry.torokhov
  Cc: swboyd, dianders, Philip Chen, Benson Leung,
	Enric Balletbo i Serra, Guenter Roeck, Rob Herring, Simon Glass,
	devicetree, linux-input

Add a new property `function-row-physmap` to the
device tree for the custom keyboard top row design.

The property describes the rows/columns of the top row keys
from left to right.

Signed-off-by: Philip Chen <philipchen@chromium.org>
---

Changes in v7:
- Use MATRIX_KEY macro to describe `function-row-physmap`

Changes in v6:
- remove $ref and add `function-row-physmap` to the example

Changes in v5:
- add minItems and maxItems for `function-row-physmap`

Changes in v2:
- add `function-row-physmap` instead of `google,custom-keyb-top-row`

 .../bindings/input/google,cros-ec-keyb.yaml   | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml b/Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml
index 8e50c14a9d778..5377b232fa10f 100644
--- a/Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml
+++ b/Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml
@@ -31,6 +31,17 @@ properties:
       if the EC does not have its own logic or hardware for this.
     type: boolean
 
+  function-row-physmap:
+    minItems: 1
+    maxItems: 15
+    description: |
+      An ordered u32 array describing the rows/columns (in the scan matrix)
+      of top row keys from physical left (KEY_F1) to right. Each entry
+      encodes the row/column as:
+      (((row) & 0xFF) << 24) | (((column) & 0xFF) << 16)
+      where the lower 16 bits are reserved. This property is specified only
+      when the keyboard has a custom design for the top row keys.
+
 required:
   - compatible
 
@@ -38,11 +49,24 @@ unevaluatedProperties: false
 
 examples:
   - |
+    #include <dt-bindings/input/input.h>
     cros-ec-keyb {
         compatible = "google,cros-ec-keyb";
         keypad,num-rows = <8>;
         keypad,num-columns = <13>;
         google,needs-ghost-filter;
+        function-row-physmap = <
+            MATRIX_KEY(0x00, 0x02, 0)   /* T1 */
+            MATRIX_KEY(0x03, 0x02, 0)   /* T2 */
+            MATRIX_KEY(0x02, 0x02, 0)   /* T3 */
+            MATRIX_KEY(0x01, 0x02, 0)   /* T4 */
+            MATRIX_KEY(0x03, 0x04, 0)   /* T5 */
+            MATRIX_KEY(0x02, 0x04, 0)   /* T6 */
+            MATRIX_KEY(0x01, 0x04, 0)   /* T7 */
+            MATRIX_KEY(0x02, 0x09, 0)   /* T8 */
+            MATRIX_KEY(0x01, 0x09, 0)   /* T9 */
+            MATRIX_KEY(0x00, 0x04, 0)   /* T10 */
+        >;
         /*
          * Keymap entries take the form of 0xRRCCKKKK where
          * RR=Row CC=Column KKKK=Key Code
-- 
2.26.2


^ permalink raw reply related	[flat|nested] 4+ messages in thread
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2021-01-15 20:24 [PATCH v7 1/2] dt-bindings: input: cros-ec-keyb: Add a new property Philip Chen
2021-01-15 20:34 ` Stephen Boyd
2021-01-25 23:15 ` Rob Herring
2021-02-23  5:07 ` Dmitry Torokhov

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