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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-10 11:14:56 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-10 11:14:56 -0700 |
commit | 34ae0a6f05aee9f51fca17001b4a90703d434ae1 (patch) | |
tree | 3ccc8bedae647eb37f46e8ff9f39cdcd84a2f2ac /Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt | |
parent | 7d3107d26b522a0fe92af6279256fa65fe3db771 (diff) | |
parent | b388f15fd14c3ae62deb9a059464aa99b524ea4a (diff) | |
download | op-kernel-dev-34ae0a6f05aee9f51fca17001b4a90703d434ae1.zip op-kernel-dev-34ae0a6f05aee9f51fca17001b4a90703d434ae1.tar.gz |
Merge tag 'for-3.11-rc1' of git://gitorious.org/linux-pwm/linux-pwm
Pull pwm changes from Thierry Reding:
"A new driver supports driving PWM signals using the TPU unit found on
various Renesas SoCs. Furthermore support is added for the NXP
PCA9685 LED controller. Another big chunk is the sysfs interface
which has been in the works for quite some time.
The remaining patches are a random assortment of cleanups and fixes"
* tag 'for-3.11-rc1' of git://gitorious.org/linux-pwm/linux-pwm:
pwm: pwm-tiehrpwm: Use clk_enable/disable instead clk_prepare/unprepare.
pwm: pca9685: Fix wrong argument to set MODE1_SLEEP bit
pwm: renesas-tpu: Add MODULE_ALIAS to make module auto loading work
pwm: renesas-tpu: fix return value check in tpu_probe()
pwm: Add Renesas TPU PWM driver
pwm: Add sysfs interface
pwm: Fill in missing .owner fields
pwm: add pca9685 driver
pwm: atmel-tcb: prepare clk before calling enable
pwm: devm: alloc correct pointer size
pwm: mxs: Let device core handle pinctrl
MAINTAINERS: Update PWM subsystem entry
Diffstat (limited to 'Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt')
-rw-r--r-- | Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt new file mode 100644 index 0000000..1e3dfe7 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt @@ -0,0 +1,27 @@ +NXP PCA9685 16-channel 12-bit PWM LED controller +================================================ + +Required properties: + - compatible: "nxp,pca9685-pwm" + - #pwm-cells: should be 2. The first cell specifies the per-chip index + of the PWM to use and the second cell is the period in nanoseconds. + The index 16 is the ALLCALL channel, that sets all PWM channels at the same + time. + +Optional properties: + - invert (bool): boolean to enable inverted logic + - open-drain (bool): boolean to configure outputs with open-drain structure; + if omitted use totem-pole structure + +Example: + +For LEDs that are directly connected to the PCA, the following setting is +applicable: + +pca: pca@41 { + compatible = "nxp,pca9685-pwm"; + #pwm-cells = <2>; + reg = <0x41>; + invert; + open-drain; +}; |