[GIT PULL] pwm: Changes for 7.1-rc1

[Uwe Kleine-König]

Hello Linus,

the following changes since commit aa8f35172ab66c57d4355a8c4e28d05b44c938e3:

  pwm: th1520: fix `CLIPPY=1` warning (2026-03-29 09:37:13 +0200)

(= pwm/for-7.1-rc1) are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux.git tags/pwm/fixes-7.1-rc1

for you to fetch changes up to 68637b68afcc3cb4d56aca14a3a1d1b47b879369:

  pwm: atmel-tcb: Cache clock rates and mark chip as atomic (2026-04-22 07:24:33 +0200)

While writing the tag text I thought about splitting the "mark chip as
atomic" part of Sangyun's fix into a separate change for the next merge
window. But it's still early in the development cycle and I don't expect
problems here, so I kept the change as it was tested. Also the patch is
a bit unelegant as it results in keeping a clock on during the lifetime
of the driver; I expect this to be addressed in one of the next
development cycles. Compared to the sleep-in-atomic this is a very minor
annoyance and I don't want to delay the fix because of that.

The pwm-stm fix is in next for a week already, the atmel-tcb fix is only
contained since next-20260422 with no problem reports.

Thanks for pulling this into your tree at your convenience,
Uwe

----------------------------------------------------------------
pwm: Two driver fixes

After having added some more code to libpwm checking the pwm rounding
rules for the userspace interface I spotted an issue in the pwm-stm32
driver where in some cases involving inverted polarity the wrong
hardware settings for the duty offset are chosen. I think it has little
practical effect because the duty offset is in most cases an artificial
property of the output waveform. Still it's relevant to get this fixed
because this driver serves as a reference implementation for the still
young waveform API.

The second fix addresses a sleep-in-atomic issue in the pwm-atmel-tcb
driver.

----------------------------------------------------------------
Sangyun Kim (1):
      pwm: atmel-tcb: Cache clock rates and mark chip as atomic

Uwe Kleine-König (1):
      pwm: stm32: Fix rounding issue for requests with inverted polarity

 drivers/pwm/pwm-atmel-tcb.c | 38 ++++++++++++++++++++++++++++++++++----
 drivers/pwm/pwm-stm32.c     | 22 ++++++++++++----------
 2 files changed, 46 insertions(+), 14 deletions(-)

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