6f18ce8026
Add snapshot of device tree bindings from keystone common kernel, branch
"android-mainline-keystone-qcom-release" at c4c12103f9c0 ("Snap for 9228065
from e32903b9a63bb558df8b803b076619c53c16baad to
android-mainline-keystone-qcom-release").
Change-Id: I7682079615cbd9f29340a5c1f2a1d84ec441a1f1
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
44 lines
1.4 KiB
Plaintext
44 lines
1.4 KiB
Plaintext
STMicroelectronics PWM driver bindings
|
|
--------------------------------------
|
|
|
|
Required parameters:
|
|
- compatible : "st,pwm"
|
|
- #pwm-cells : Number of cells used to specify a PWM. First cell
|
|
specifies the per-chip index of the PWM to use and the
|
|
second cell is the period in nanoseconds - fixed to 2
|
|
for STiH41x.
|
|
- reg : Physical base address and length of the controller's
|
|
registers.
|
|
- pinctrl-names: Set to "default".
|
|
- pinctrl-0: List of phandles pointing to pin configuration nodes
|
|
for PWM module.
|
|
For Pinctrl properties, please refer to [1].
|
|
- 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 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
|
|
|
|
Example:
|
|
|
|
pwm1: pwm@fe510000 {
|
|
compatible = "st,pwm";
|
|
reg = <0xfe510000 0x68>;
|
|
#pwm-cells = <2>;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_pwm1_chan0_default
|
|
&pinctrl_pwm1_chan1_default
|
|
&pinctrl_pwm1_chan2_default
|
|
&pinctrl_pwm1_chan3_default>;
|
|
clocks = <&clk_sysin>;
|
|
clock-names = "pwm";
|
|
st,pwm-num-chan = <4>;
|
|
st,capture-num-chan = <2>;
|
|
};
|