[PATCH 1/5] Documentation: dt: Add kona-pwm binding
Tim Kryger
tim.kryger at linaro.org
Mon Nov 18 13:54:57 EST 2013
Add the binding description for the kona-pwm block found on Broadcom's
mobile SoCs.
Signed-off-by: Tim Kryger <tim.kryger at linaro.org>
Reviewed-by: Alex Elder <elder at linaro.org>
Reviewed-by: Markus Mayer <markus.mayer at linaro.org>
---
.../devicetree/bindings/pwm/bcm-kona-pwm.txt | 24 ++++++++++++++++++++++
1 file changed, 24 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/bcm-kona-pwm.txt
diff --git a/Documentation/devicetree/bindings/pwm/bcm-kona-pwm.txt b/Documentation/devicetree/bindings/pwm/bcm-kona-pwm.txt
new file mode 100644
index 0000000..5c3ea1b
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/bcm-kona-pwm.txt
@@ -0,0 +1,24 @@
+Broadcom's PWM Controller Device Tree bindings
+
+Broadcom's Kona PWM Controller has 6 channels
+
+Required Properties :
+- compatible: should be "brcm,kona-pwm"
+- reg: physical base address and length of the controller's registers
+- clocks: clock specifier for the kona pwm external clock
+- #pwm-cells: should be 2. The first cell specifies the per-chip index
+ of the PWM to use and the second cell is the period in nanoseconds.
+
+Refer to pwm/pwm.txt for generic pwm controller node properties.
+
+Refer to clocks/clock-bindings.txt for generic clock consumer
+properties
+
+Example:
+
+pwm: pwm at 3e01a000 {
+ compatible = "brcm,bcm11351-pwm", "brcm,kona-pwm";
+ reg = <0x3e01a000 0xc4>;
+ clocks = <&pwm_clk>;
+ #pwm-cells = <2>;
+};
--
1.8.0.1
More information about the linux-arm-kernel
mailing list