[PATCH v5 2/4] DT: pwm: Add binding document for IMG PWM DAC
From: Naidu Tellapati <hidden>
Date: 2014-11-26 15:24:18
Also in:
linux-pwm
Subsystem:
open firmware and flattened device tree bindings, pwm subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Uwe Kleine-König, Linus Torvalds
Add binding document for IMG Pulse Width Modulator (PWM) DAC present on the Pistachio SOC. The PWM DAC has four channels. Signed-off-by: Naidu Tellapati <redacted> Signed-off-by: Sai Masarapu <redacted> Reviewed-by: Andrew Bresticker <redacted> --- No changes from v4. --- Documentation/devicetree/bindings/pwm/img-pwm.txt | 21 +++++++++++++++++++++ 1 files changed, 21 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/pwm/img-pwm.txt
diff --git a/Documentation/devicetree/bindings/pwm/img-pwm.txt b/Documentation/devicetree/bindings/pwm/img-pwm.txt
new file mode 100644
index 0000000..046893c
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/img-pwm.txt@@ -0,0 +1,21 @@ +*Imagination Technologies PWM DAC driver + +Required properties: + - compatible: Should be "img,pistachio-pwm" + - reg: Should contain physical base address and length of pwm registers. + - clocks: Must contain an entry for each entry in clock-names. + See ../clock/clock-bindings.txt for details. + - clock-names: Must include the following entries: + - pwm: PWM operating clock. + - sys: PWM system interface clock. + - #pwm-cells: Should be 2. See pwm.txt in this directory for the + description of the cells format. + +Example: + pwm: pwm@18101300 { + compatible = "img,pistachio-pwm"; + reg = <0x18101300 0x100>; + clocks = <&pwm_clk>, <&system_clk>; + clock-names = "pwm", "sys"; + #pwm-cells = <2>; + };
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1.7.0.4