summaryrefslogtreecommitdiffstats
path: root/kernel/Documentation/devicetree/bindings/clock/clk-palmas-clk32kg-clocks.txt
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/clock/clk-palmas-clk32kg-clocks.txt')
-rw-r--r--kernel/Documentation/devicetree/bindings/clock/clk-palmas-clk32kg-clocks.txt35
1 files changed, 35 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/clock/clk-palmas-clk32kg-clocks.txt b/kernel/Documentation/devicetree/bindings/clock/clk-palmas-clk32kg-clocks.txt
new file mode 100644
index 000000000..4208886d8
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/clock/clk-palmas-clk32kg-clocks.txt
@@ -0,0 +1,35 @@
+* Palmas 32KHz clocks *
+
+Palmas device has two clock output pins for 32KHz, KG and KG_AUDIO.
+
+This binding uses the common clock binding ./clock-bindings.txt.
+
+Required properties:
+- compatible : "ti,palmas-clk32kg" for clk32kg clock
+ "ti,palmas-clk32kgaudio" for clk32kgaudio clock
+- #clock-cells : shall be set to 0.
+
+Optional property:
+- ti,external-sleep-control: The external enable input pins controlled the
+ enable/disable of clocks. The external enable input pins ENABLE1,
+ ENABLE2 and NSLEEP. The valid values for the external pins are:
+ PALMAS_EXT_CONTROL_PIN_ENABLE1 for ENABLE1 pin
+ PALMAS_EXT_CONTROL_PIN_ENABLE2 for ENABLE2 pin
+ PALMAS_EXT_CONTROL_PIN_NSLEEP for NSLEEP pin
+ Option 0 or missing this property means the clock is enabled/disabled
+ via register access and these pins do not have any control.
+ The macros of external control pins for DTS is defined at
+ dt-bindings/mfd/palmas.h
+
+Example:
+ #include <dt-bindings/mfd/palmas.h>
+ ...
+ palmas: tps65913@58 {
+ ...
+ clk32kg: palmas_clk32k@0 {
+ compatible = "ti,palmas-clk32kg";
+ #clock-cells = <0>;
+ ti,external-sleep-control = <PALMAS_EXT_CONTROL_PIN_NSLEEP>;
+ };
+ ...
+ };