tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1TI SOC EHRPWM based PWM controller
2
3Required properties:
4- compatible : Must be "ti,am33xx-ehrpwm"
5- #pwm-cells: Should be 3. Number of cells being used to specify PWM property.
6 First cell specifies the per-chip index of the PWM to use, the second
7 cell is the period in nanoseconds and bit 0 in the third cell is used to
8 encode the polarity of PWM output. Set bit 0 of the third in PWM specifier
9 to 1 for inverse polarity & set to 0 for normal polarity.
10- reg: physical base address and size of the registers map.
11
12Optional properties:
13- ti,hwmods: Name of the hwmod associated to the EHRPWM:
14 "ehrpwm<x>", <x> being the 0-based instance number from the HW spec
15
16Example:
17
18ehrpwm0: ehrpwm@0 {
19 compatible = "ti,am33xx-ehrpwm";
20 #pwm-cells = <3>;
21 reg = <0x48300200 0x100>;
22 ti,hwmods = "ehrpwm0";
23};