diff options
| author | Russell King <[email protected]> | 2014-04-06 15:20:18 -0700 |
|---|---|---|
| committer | Bryan Wu <[email protected]> | 2014-05-08 14:28:07 +0800 |
| commit | d19a8a7078a9a8e254c030bcdb6732d26cbd6c16 (patch) | |
| tree | 3951de02ae3cbb710876d0436f0b24f6e26d3ed8 /tools/perf/util/trace-event-scripting.c | |
| parent | b795e6d94f2193d5e9087f05c445b069a7aa0dcd (diff) | |
leds: leds-pwm: implement PWM inversion
Some PWM outputs are wired such that the LED they're controlling is
connected to supply rather than ground. These PWMs may not support
output inversion, or when they do, disabling the PWM may set the
PWM output low, causing a "brightness" value of zero to turn the LED
fully on.
The platform data for this driver already indicates that this was
thought about, and we have the "active_low" property there already.
However, the implementation for this is missing.
Add the trivial implementation for this feature.
Signed-off-by: Russell King <[email protected]>
Acked-by: Thierry Reding <[email protected]>
Signed-off-by: Bryan Wu <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions