Re: [PATCH RESEND v4 2/4] DT: pwm: Add binding document for IMG PWM DAC
From: Thierry Reding <hidden>
Date: 2014-11-24 10:14:51
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linux-pwm
On Sat, Nov 22, 2014 at 07:23:30AM +0530, naidu.tellapati@gmail.com wrote:
quoted hunk ↗ jump to hunk
From: Naidu Tellapati <redacted> 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 v3. --- Documentation/devicetree/bindings/pwm/img-pwm.txt | 23 +++++++++++++++++++++ 1 files changed, 23 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/pwm/img-pwm.txtdiff --git a/Documentation/devicetree/bindings/pwm/img-pwm.txt b/Documentation/devicetree/bindings/pwm/img-pwm.txt new file mode 100644 index 0000000..d3828dd --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/img-pwm.txt@@ -0,0 +1,23 @@ +*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: input clock names. + Required elements: "pwm" and "sys".
I think it'd be useful to explain at least what the "sys" clock is. "pwm" I'd assume that it clocks the IP block, but what does "sys" do? Thierry
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