On Mon, Oct 01, 2012 at 08:47:33AM +0200, Thierry Reding wrote: > The second cell in the PWM specifier denotes the period in nanoseconds, > not the duty cycle. The latter can be freely configured at runtime and > a PWM with a fixed duty cycle would be rather pointless. > > Signed-off-by: Thierry Reding <thierry.red...@avionic-design.de> > Cc: Shawn Guo <shawn....@linaro.org> > Cc: Sascha Hauer <s.ha...@pengutronix.de> > Cc: Philipp Zabel <p.za...@pengutronix.de> > Cc: "Benoît Thébaudeau" <benoit.thebaud...@advansee.com> > Cc: Stephen Warren <swar...@wwwdotorg.org>
Acked-by: Sascha Hauer <s.ha...@pengutronix.de> > --- > Documentation/devicetree/bindings/pwm/imx-pwm.txt | 2 +- > Documentation/devicetree/bindings/pwm/mxs-pwm.txt | 2 +- > Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt | 2 +- > 3 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/Documentation/devicetree/bindings/pwm/imx-pwm.txt > b/Documentation/devicetree/bindings/pwm/imx-pwm.txt > index 9b9b185..8522bfb 100644 > --- a/Documentation/devicetree/bindings/pwm/imx-pwm.txt > +++ b/Documentation/devicetree/bindings/pwm/imx-pwm.txt > @@ -4,7 +4,7 @@ Required properties: > - compatible: should be "fsl,<soc>-pwm" > - reg: physical base address and length of the controller's registers > - #pwm-cells: should be 2. The first cell specifies the per-chip index > - of the PWM to use and the second cell is the duty cycle in nanoseconds. > + of the PWM to use and the second cell is the period in nanoseconds. > - interrupts: The interrupt for the pwm controller > > Example: > diff --git a/Documentation/devicetree/bindings/pwm/mxs-pwm.txt > b/Documentation/devicetree/bindings/pwm/mxs-pwm.txt > index b16f4a5..d7946be6 100644 > --- a/Documentation/devicetree/bindings/pwm/mxs-pwm.txt > +++ b/Documentation/devicetree/bindings/pwm/mxs-pwm.txt > @@ -4,7 +4,7 @@ Required properties: > - compatible: should be "fsl,imx23-pwm" > - reg: physical base address and length of the controller's registers > - #pwm-cells: should be 2. The first cell specifies the per-chip index > - of the PWM to use and the second cell is the duty cycle in nanoseconds. > + of the PWM to use and the second cell is the period in nanoseconds. > - fsl,pwm-number: the number of PWM devices > > Example: > diff --git a/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt > b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt > index bbbeedb..01438ec 100644 > --- a/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt > +++ b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt > @@ -7,7 +7,7 @@ Required properties: > - reg: physical base address and length of the controller's registers > - #pwm-cells: On Tegra the number of cells used to specify a PWM is 2. The > first cell specifies the per-chip index of the PWM to use and the second > - cell is the duty cycle in nanoseconds. > + cell is the period in nanoseconds. > > Example: > > -- > 1.7.12.2 > > -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
