[PATCH v2 5/5] dt-bindings: input/atkbd.txt: Add binding info for "keymap" property

Rajat Jain
2020-03-24T12:35:54Z

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>
---
v2: Remove the Change-Id from the commit log

.../devicetree/bindings/input/atkbd.txt | 27 ++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)

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>
+ }
}
}
})
--
2.25.1.696.g5e7596f4ac-goog