linux-kernel - [PATCH v4 5/5] dt-bindings: input/atkbd.txt: Add binding info for "keymap" property

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Message-Id: <20200328185916.98423-5-rajatja@google.com>
Date:   Sat, 28 Mar 2020 11:59:16 -0700
From:   Rajat Jain <rajatja@...gle.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>, dtor@...gle.com,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Rajat Jain <rajatja@...gle.com>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Enrico Weigelt <info@...ux.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Allison Randal <allison@...utok.net>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Stephen Boyd <swboyd@...omium.org>,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, furquan@...gle.com,
        dlaurie@...gle.com, bleung@...gle.com, zentaro@...gle.com,
        dbehr@...gle.com
Cc:     rajatxjain@...il.com
Subject: [PATCH v4 5/5] dt-bindings: input/atkbd.txt: Add binding info for
 "keymap" property

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@...gle.com>
---
v4: Property name "keymap" -> "linux,keymap"
v3: same as v2
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..8b6d7e2c55bb6 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.
 
+	linux,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 () { "linux,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>
+                                }
                         }
                 }
         })
-- 
2.26.0.rc2.310.g2932bb562d-goog