Input: add Qualcomm PM8941 power key driver

Signed-off-by: Courtney Cavin <courtney.cavin@sonymobile.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Tested-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/input/qcom,pm8941-pwrkey.txt b/Documentation/devicetree/bindings/input/qcom,pm8941-pwrkey.txt
new file mode 100644
index 000000000000..07bf55f6e0b9
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/qcom,pm8941-pwrkey.txt
@@ -0,0 +1,43 @@
+Qualcomm PM8941 PMIC Power Key
+
+PROPERTIES
+
+- compatible:
+        Usage: required
+        Value type: <string>
+        Definition: must be one of:
+                    "qcom,pm8941-pwrkey"
+
+- reg:
+        Usage: required
+        Value type: <prop-encoded-array>
+        Definition: base address of registers for block
+
+- interrupts:
+        Usage: required
+        Value type: <prop-encoded-array>
+        Definition: key change interrupt; The format of the specifier is
+                    defined by the binding document describing the node's
+                    interrupt parent.
+
+- debounce:
+        Usage: optional
+        Value type: <u32>
+        Definition: time in microseconds that key must be pressed or released
+                    for state change interrupt to trigger.
+
+- bias-pull-up:
+        Usage: optional
+        Value type: <empty>
+        Definition: presence of this property indicates that the KPDPWR_N pin
+                    should be configured for pull up.
+
+EXAMPLE
+
+        pwrkey@800 {
+                compatible = "qcom,pm8941-pwrkey";
+                reg = <0x800>;
+                interrupts = <0x0 0x8 0 IRQ_TYPE_EDGE_BOTH>;
+                debounce = <15625>;
+                bias-pull-up;
+        };