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[RESEND,5/5] dt-bindings: input/atkbd.txt: Add binding info for "keymap" property

Message ID 20200323234505.226919-5-rajatja@google.com
State New
Headers show
Series [RESEND,1/5] input/serio/i8042: Attach fwnode to serio i8042 kbd device | expand

Commit Message

Rajat Jain March 23, 2020, 11:45 p.m. UTC 
Add the info for keymap property that allows firmware to specify the
mapping from physical code to linux keycode, that the kernel should use.

Signed-off-by: Rajat Jain <rajatja@google.com>
Change-Id: I5226fffc048399f003bc30410d5893f5ab24be08
---
 .../devicetree/bindings/input/atkbd.txt       | 27 ++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)
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Patch

diff --git a/Documentation/devicetree/bindings/input/atkbd.txt b/Documentation/devicetree/bindings/input/atkbd.txt
index 816653eb8e98d..0a0037d70adc8 100644
--- a/Documentation/devicetree/bindings/input/atkbd.txt
+++ b/Documentation/devicetree/bindings/input/atkbd.txt
@@ -6,9 +6,15 @@  Optional properties:
 			An ordered array of the physical codes for the function
 			row keys. Arranged in order from left to right.
 
+	keymap:
+			An array of the u32 entries to specify mapping from the
+			keyboard physcial codes to linux keycodes. The top 16
+			bits of each entry are the physical code, and bottom
+			16 bits are the	linux keycode.
+
 Example:
 
-	This is a sample ACPI _DSD node describing the property:
+	This is a sample ACPI _DSD node describing the properties:
 
         Name (_DSD, Package () {
                 ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
@@ -29,6 +35,25 @@  Example:
                                         0xAE, /* T12 VOL_DOWN */
                                         0xB0, /* T13 VOL_UP */
                                 }
+                        },
+                        Package () { "keymap",
+                                Package () {
+                                        0xEA009E, /* EA -> KEY_BACK */
+                                        0xE700AD, /* E7 -> KEY_REFRESH */
+                                        0x910174, /* 91 -> KEY_FULL_SCREEN */
+                                        0x920078, /* 92 -> KEY_SCALE */
+                                        0x930280, /* 93 -> 0x280 */
+                                        0x9400E0, /* 94 -> KEY_BRIGHTNESS_DOWN*/
+                                        0x9500E1, /* 95 -> KEY_BRIGHTNESS_UP */
+                                        0x960279, /* 96 -> KEY_PRIVACY_SCRN_TOGGLE*/
+                                        0x9700E5, /* 97 -> KEY_KBDILLUMDOWN */
+                                        0x9800E6, /* 98 -> KEY_KBDILLUMUP */
+                                        0xA00071, /* A0 -> KEY_MUTE */
+                                        0xAE0072, /* AE -> KEY_VOLUMEDOWN */
+                                        0xB00073, /* B0 -> KEY_VOLUMEUP */
+					...
+					<snip other entries>
+                                }
                         }
                 }
         })