[PATCH 0/8] pwm: Drop local locking in several drivers

[Uwe Kleine-König]

Hello,

some time ago the pwm core implemented additional locking to protect
lowlevel driver callbacks against driver removal. A side effect is that
.apply() and .get_state() are serialized. This allows to drop some
locking that is now superfluous due to the core's locking.

I identified a few drivers that are affected; these are cleaned up
accordingly here.

Best regards
Uwe

Uwe Kleine-König (8):
  pwm: atmel: Drop driver local locking
  pwm: clps711x: Drop driver local locking
  pwm: fsl-ftm: Drop driver local locking
  pwm: lpc18xx-sct: Drop driver local locking
  pwm: microchip-core: Drop driver local locking
  pwm: sti: Drop driver local locking
  pwm: sun4i: Drop driver local locking
  pwm: twl-led: Drop driver local locking

 drivers/pwm/pwm-atmel.c          | 12 --------
 drivers/pwm/pwm-clps711x.c       |  8 ------
 drivers/pwm/pwm-fsl-ftm.c        | 28 +++++-------------
 drivers/pwm/pwm-lpc18xx-sct.c    | 14 ---------
 drivers/pwm/pwm-microchip-core.c | 17 +----------
 drivers/pwm/pwm-sti.c            | 23 ++++-----------
 drivers/pwm/pwm-sun4i.c          | 10 -------
 drivers/pwm/pwm-twl-led.c        | 49 +++++---------------------------
 8 files changed, 21 insertions(+), 140 deletions(-)

base-commit: f817b6dd2b62d921a6cdc0a3ac599cd1851f343c
-- 
2.49.0