diff options
| author | Lee Jones <lee.jones@linaro.org> | 2016-08-16 10:35:08 +0100 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2016-09-08 10:55:06 +0200 |
| commit | 055beac1317900fa5e860b13d60109e76cf55733 (patch) | |
| tree | a730e6cfecca8c237ffdcd2a4e7353869ec2566c /Documentation/devicetree/bindings/pwm | |
| parent | fe0e2cf931fc3c156850ae5184e7ecf9576431f8 (diff) | |
dt-bindings: pwm: sti: Update DT bindings for capture support
In order to support capture of PWM signals a new clock as well as an
interrupt line are required. Furthermore a new property is introduced
that allows the number of capture channels to be specified. Typically
there will be less capture channels than output channels, since all
channels have the latter capability, but only some have support for
capture.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'Documentation/devicetree/bindings/pwm')
| -rw-r--r-- | Documentation/devicetree/bindings/pwm/pwm-st.txt | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/pwm/pwm-st.txt b/Documentation/devicetree/bindings/pwm/pwm-st.txt index 84d2fb807d3c..19fce774cafa 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-st.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-st.txt @@ -13,13 +13,14 @@ Required parameters: - pinctrl-0: List of phandles pointing to pin configuration nodes for PWM module. For Pinctrl properties, please refer to [1]. -- clock-names: Set to "pwm". +- clock-names: Valid entries are "pwm" and/or "capture". - clocks: phandle of the clock used by the PWM module. For Clk properties, please refer to [2]. +- interrupts: IRQ for the Capture device Optional properties: -- st,pwm-num-chan: Number of available channels. If not passed, the driver - will consider single channel by default. +- st,pwm-num-chan: Number of available PWM channels. Default is 0. +- st,capture-num-chan: Number of available Capture channels. Default is 0. [1] Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt [2] Documentation/devicetree/bindings/clock/clock-bindings.txt @@ -38,4 +39,5 @@ pwm1: pwm@fe510000 { clocks = <&clk_sysin>; clock-names = "pwm"; st,pwm-num-chan = <4>; + st,capture-num-chan = <2>; }; |