| Message ID | cover.1700323916.git.sean@mess.org |
|---|---|
| Headers | show |
| Series | Improve pwm-ir-tx precision | expand |
On Sat, Nov 18, 2023 at 04:16:16PM +0000, Sean Young wrote: > The pwm-ir-tx driver has to turn the pwm signal on and off, and suffers > from delays as this is done in process context. Make this work in atomic > context. Hi Uwe, Do you have any comments on this series? I hope you don't dislike the pwm_apply_atomic()/pwm_apply_cansleep(), I am not wedded to this name, it's just me reading the room and thinking that would be the most acceptable to everyone - I may have misread this. Thank you for any feedback Sean > > changes: > > v5: > - Use dev_err_probe() as Uwe suggested > - rebase > > v4: > - Split out the pwm_apply_state() rename into seperate commit > - Atomic pwm function is called pwm_apply_atomic() and sleeping > counterpart pwm_apply_cansleep() > - Fix commit messages > > v3: > - Renamed pwm_apply_state() to pwm_apply_cansleep() > - Moved pwm atomic to struct pwm_chip > - Fixed pwm docs > - Other minor code review comments > > v2: > - Simplified the pwm ir tx based on Ivaylo Dimitrov suggestions > - Renamed pwm_can_sleep() to pwm_is_atomic > - Fix sleeping issue in pwm-bcm2835 (clk_get_rate() can sleep) > - use non_block_start() in pwm to check atomic-ness > > > Sean Young (4): > pwm: rename pwm_apply_state() to pwm_apply_cansleep() > pwm: make it possible to apply pwm changes in atomic context > pwm: bcm2835: allow pwm driver to be used in atomic context > media: pwm-ir-tx: trigger edges from hrtimer interrupt context > > Documentation/driver-api/pwm.rst | 17 +++- > .../gpu/drm/i915/display/intel_backlight.c | 6 +- > drivers/gpu/drm/solomon/ssd130x.c | 2 +- > drivers/hwmon/pwm-fan.c | 8 +- > drivers/input/misc/da7280.c | 4 +- > drivers/input/misc/pwm-beeper.c | 4 +- > drivers/input/misc/pwm-vibra.c | 8 +- > drivers/leds/leds-pwm.c | 2 +- > drivers/leds/rgb/leds-pwm-multicolor.c | 4 +- > drivers/media/rc/pwm-ir-tx.c | 83 +++++++++++++++++-- > drivers/platform/x86/lenovo-yogabook.c | 2 +- > drivers/pwm/core.c | 75 +++++++++++++---- > drivers/pwm/pwm-bcm2835.c | 31 ++++--- > drivers/pwm/pwm-renesas-tpu.c | 1 - > drivers/pwm/pwm-twl-led.c | 2 +- > drivers/pwm/pwm-vt8500.c | 2 +- > drivers/pwm/sysfs.c | 10 +-- > drivers/regulator/pwm-regulator.c | 4 +- > drivers/video/backlight/lm3630a_bl.c | 2 +- > drivers/video/backlight/lp855x_bl.c | 2 +- > drivers/video/backlight/pwm_bl.c | 12 +-- > drivers/video/fbdev/ssd1307fb.c | 2 +- > include/linux/pwm.h | 57 +++++++++---- > 23 files changed, 248 insertions(+), 92 deletions(-) > > -- > 2.42.1 >