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From: Sean Young <sean@mess.org>
To: linux-media@vger.kernel.org, linux-pwm@vger.kernel.org,
	"Ivaylo Dimitrov" <ivo.g.dimitrov.75@gmail.com>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
Cc: Sean Young <sean@mess.org>
Subject: [PATCH v10 0/6] Improve pwm-ir-tx precision
Date: Tue, 19 Dec 2023 16:30:23 +0000	[thread overview]
Message-ID: <cover.1703003288.git.sean@mess.org> (raw)

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.

changes:

v10:
 - Uwe Kleine-König review comments/fixes

v9:
 - Uwe Kleine-König review comments/fixes

v8:
 - Uwe Kleine-König review comments
 - Minor cleanups

v7:
 - Thierry Reding review comments
 - Minor cleanups
 - rebase

v6:
 - Rename pwm_apply_cansleep() to pwm_apply_might_sleep()
 - rebase

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 (6):
  pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()
  pwm: Replace ENOTSUPP with EOPNOTSUPP
  pwm: renesas: Remove unused include
  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 +++-
 MAINTAINERS                                   |  2 +-
 .../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                  | 87 +++++++++++++++++--
 drivers/platform/x86/lenovo-yogabook.c        |  2 +-
 drivers/pwm/core.c                            | 74 ++++++++++++----
 drivers/pwm/pwm-bcm2835.c                     | 34 ++++++--
 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 ++++++++----
 24 files changed, 255 insertions(+), 93 deletions(-)

-- 
2.43.0


             reply	other threads:[~2023-12-19 16:30 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-19 16:30 Sean Young [this message]
2023-12-19 16:30 ` [PATCH v10 1/6] pwm: Rename pwm_apply_state() to pwm_apply_might_sleep() Sean Young
2023-12-19 16:30 ` [PATCH v10 2/6] pwm: Replace ENOTSUPP with EOPNOTSUPP Sean Young
2023-12-19 17:01   ` Uwe Kleine-König
2023-12-19 16:30 ` [PATCH v10 3/6] pwm: renesas: Remove unused include Sean Young
2023-12-19 16:30 ` [PATCH v10 4/6] pwm: Make it possible to apply PWM changes in atomic context Sean Young
2023-12-20 10:31   ` Uwe Kleine-König
2023-12-19 16:30 ` [PATCH v10 5/6] pwm: bcm2835: Allow PWM driver to be used " Sean Young
2023-12-19 16:58   ` Uwe Kleine-König
2023-12-19 16:30 ` [PATCH v10 6/6] media: pwm-ir-tx: Trigger edges from hrtimer interrupt context Sean Young
2023-12-20 16:06 ` (subset) [PATCH v10 0/6] Improve pwm-ir-tx precision Thierry Reding
2023-12-20 16:09   ` Thierry Reding
2023-12-21  9:09     ` Sean Young

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