diff options
| author | Boris Brezillon <boris.brezillon@free-electrons.com> | 2016-04-14 21:17:40 +0200 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2016-05-17 14:48:03 +0200 |
| commit | 15fa8a43c147213a9563903c87b29671035eb6e8 (patch) | |
| tree | ececf11f09885f32d8b27334d180c8a080882000 /drivers/pwm | |
| parent | pwm: Move the enabled/disabled info into pwm_state (diff) | |
| download | linux-15fa8a43c147213a9563903c87b29671035eb6e8.tar.xz linux-15fa8a43c147213a9563903c87b29671035eb6e8.zip | |
pwm: Add hardware readout infrastructure
Add a ->get_state() function to the pwm_ops struct to let PWM drivers
initialize the PWM state attached to a PWM device.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index c240b5437145..a909c64ee863 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -270,6 +270,9 @@ int pwmchip_add_with_polarity(struct pwm_chip *chip, pwm->hwpwm = i; pwm->state.polarity = polarity; + if (chip->ops->get_state) + chip->ops->get_state(chip, pwm, &pwm->state); + radix_tree_insert(&pwm_tree, pwm->pwm, pwm); } |