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authorTim Kryger <tim.kryger@linaro.org>2014-03-12 13:15:42 -0700
committerAlex Elder <elder@linaro.org>2014-03-31 08:01:10 -0500
commitceb4235ab3d5c5d49d10196f082183b775b8c777 (patch)
treec6a359c1541e655c29dd009bdbfe0044bde2fdd2 /Documentation
parentf68c1b13aae9ed8555265a39b0aac6d8235583c9 (diff)
Documentation: dt: Add Kona PWM binding
Add the binding description for the Kona PWM controller found on Broadcom's mobile SoCs. Signed-off-by: Tim Kryger <tim.kryger@linaro.org> Reviewed-by: Alex Elder <elder@linaro.org> Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/pwm/bcm-kona-pwm.txt24
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diff --git a/Documentation/devicetree/bindings/pwm/bcm-kona-pwm.txt b/Documentation/devicetree/bindings/pwm/bcm-kona-pwm.txt
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+Broadcom Kona PWM controller device tree bindings
+
+This controller has 6 channels.
+
+Required Properties :
+- compatible: should be "brcm,kona-pwm"
+- reg: physical base address and length of the controller's registers
+- clocks: phandle + clock specifier pair for the external clock
+- #pwm-cells: should be 3. The first cell specifies the per-chip index
+ of the PWM to use, the second cell is the period in nanoseconds, and
+ the third cell is the flags.
+
+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@3e01a000 {
+ compatible = "brcm,bcm11351-pwm", "brcm,kona-pwm";
+ reg = <0x3e01a000 0xc4>;
+ clocks = <&pwm_clk>;
+ #pwm-cells = <3>;
+};