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| author | Robin Gong <yibin.gong@nxp.com> | 2017-03-17 10:14:13 +0800 |
|---|---|---|
| committer | Anson Huang <Anson.Huang@nxp.com> | 2017-06-09 22:19:01 +0800 |
| commit | 8bb0463ef6e138dc0844c4a2eb2257ce088839f4 (patch) | |
| tree | f37255db2ad67a62cc5cf02f6db58b496aac233b /Documentation | |
| parent | ee748474fea65f3630972760eeebe0b3f7222d42 (diff) | |
MLK-14619 input: keyboard: rpmsg-keys: add rpmsg-keys driver
Add rpmsg-keys driver on i.mx7ulp-evk board since vol+/vol- keys
are connected on m4 side and have to get the status of keys by
rpmsg.
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
[Irina: updated for 4.9 APIs]
Signed-off-by: Irina Tirdea <irina.tirdea@nxp.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/input/rpmsg-keys.txt | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/rpmsg-keys.txt b/Documentation/devicetree/bindings/input/rpmsg-keys.txt new file mode 100644 index 000000000000..d9279802cc9c --- /dev/null +++ b/Documentation/devicetree/bindings/input/rpmsg-keys.txt @@ -0,0 +1,33 @@ +Device-Tree bindings for input/keyboard/rpmsg-keys.c keys driver over +rpmsg. On i.mx7ULP keys are connected on M4 side, so rpmsg-keys driver +needed to get the key status from M4 side by rpmsg. + +Required properties: + - compatible = "fsl,rpmsg-keys"; + +Each button/key looked as the sub node: +Required properties: + - label: the key name + - linux,code: the key value defined in + include/dt-bindings/input/input.h +Optional property: + - rpmsg-key,wakeup: wakeup feature, the keys can wakeup from + suspend if the keys with this property pressed. + +Example nodes: + rpmsg_keys: rpmsg-keys { + compatible = "fsl,rpmsg-keys"; + + volume-up { + label = "Volume Up"; + rpmsg-key,wakeup; + linux,code = <KEY_VOLUMEUP>; + }; + + volume-down { + label = "Volume Down"; + rpmsg-key,wakeup; + linux,code = <KEY_VOLUMEDOWN>; + }; + }; + |