diff options
author | Ingo Molnar <mingo@kernel.org> | 2014-08-22 10:04:15 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@kernel.org> | 2014-08-22 10:04:15 +0200 |
commit | 80b304fd00e8b667775ff791121b61ecd7cd0c03 (patch) | |
tree | b4f2ec59fe062c43343ee4c2f10a6bcd0e4dcd1b /Documentation/devicetree/bindings/pwm/pwm-st.txt | |
parent | fb21b84e7f809ef04b1e5aed5d463cf0d4866638 (diff) | |
parent | 6a7519e81321343165f89abb8b616df186d3e57a (diff) |
Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/urgent
Pull EFI fixes from Matt Fleming:
* WARN_ON(!spin_is_locked()) always triggers on non-SMP machines.
Swap it for the more canonical lockdep_assert_held() which always
does the right thing - Guenter Roeck
* Assign the correct value to efi.runtime_version on arm64 so that all
the runtime services can be invoked - Semen Protsenko
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/pwm/pwm-st.txt')
-rw-r--r-- | Documentation/devicetree/bindings/pwm/pwm-st.txt | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pwm/pwm-st.txt b/Documentation/devicetree/bindings/pwm/pwm-st.txt new file mode 100644 index 000000000000..84d2fb807d3c --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm-st.txt @@ -0,0 +1,41 @@ +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: Set to "pwm". +- clocks: phandle of the clock used by the PWM module. + For Clk properties, please refer to [2]. + +Optional properties: +- st,pwm-num-chan: Number of available channels. If not passed, the driver + will consider single channel by default. + +[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>; +}; |