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9af1fba33b
linux-stable/drivers/pwm
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Clemens Gruber 9af1fba33b pwm: pca9685: Switch to atomic API 
The switch to the atomic API goes hand in hand with a few fixes to
previously experienced issues:
- The duty cycle is no longer lost after disable/enable (previously the
  OFF registers were cleared in disable and the user was required to
  call config to restore the duty cycle settings)
- If one sets a period resulting in the same prescale register value,
  the sleep and write to the register is now skipped
- Previously, only the full ON bit was toggled in GPIO mode (and full
  OFF cleared if set to high), which could result in both full OFF and
  full ON not being set and on=0, off=0, which is not allowed according
  to the datasheet
- The OFF registers were reset to 0 in probe, which could lead to the
  forbidden on=0, off=0. Fixed by resetting to POR default (full OFF)

Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2021-04-23 18:44:55 +02:00
..
core.c pwm: Drop function pwmchip_add_with_polarity() 2021-03-22 12:31:32 +01:00
Kconfig pwm: Remove ZTE ZX driver 2021-01-20 17:16:52 +01:00
Makefile pwm: Remove ZTE ZX driver 2021-01-20 17:16:52 +01:00
pwm-ab8500.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-atmel-hlcdc.c pwm: atmel-hlcdc: Use pwmchip_add() instead of pwmchip_add_with_polarity() 2021-03-22 12:19:08 +01:00
pwm-atmel-tcb.c pwm: atmel-tcb: Only free resources after pwm_chip_remove() returned 2021-03-22 12:06:45 +01:00
pwm-atmel.c pwm: atmel: Free resources only after pwmchip_remove() 2021-04-09 14:31:08 +02:00
pwm-bcm2835.c pwm: bcm2835: Free resources only after pwmchip_remove() 2021-04-09 14:33:39 +02:00
pwm-bcm-iproc.c pwm: bcm-iproc: Free resources only after pwmchip_remove() 2021-04-09 14:33:10 +02:00
pwm-bcm-kona.c pwm: bcm-kona: Don't modify HW state in .remove callback 2021-04-09 14:44:12 +02:00
pwm-berlin.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-brcmstb.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-clps711x.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-crc.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-cros-ec.c pwm: cros-ec: Refuse requests with unsupported polarity 2021-03-22 12:08:06 +01:00
pwm-dwc.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-ep93xx.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-fsl-ftm.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-hibvt.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-img.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-imx1.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-imx27.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-imx-tpm.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-intel-lgm.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-iqs620a.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-jz4740.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-keembay.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-lp3943.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-lpc18xx-sct.c pwm: lpc18xx-sct: Free resources only after pwmchip_remove() 2021-04-09 14:44:37 +02:00
pwm-lpc32xx.c pwm: lpc3200: Don't modify HW state in .remove callback 2021-04-09 14:45:11 +02:00
pwm-lpss-pci.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pwm-lpss-platform.c pwm: lpss: Set DPM_FLAG_SMART_SUSPEND on Cherry Trail devices 2020-12-17 14:18:49 +01:00
pwm-lpss.c pwm: lpss: Don't modify HW state in .remove callback 2021-04-09 15:21:18 +02:00
pwm-lpss.h pwm: lpss: Remove suspend/resume handlers 2020-09-06 15:38:01 +02:00
pwm-mediatek.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-meson.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-mtk-disp.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-mxs.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-omap-dmtimer.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-pca9685.c pwm: pca9685: Switch to atomic API 2021-04-23 18:44:55 +02:00
pwm-pxa.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-rcar.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-renesas-tpu.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-rockchip.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-samsung.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-sifive.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-sl28cpld.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-spear.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-sprd.c pwm: sprd: Refuse requests with unsupported polarity 2021-03-22 12:07:26 +01:00
pwm-sti.c pwm: sti: Free resources only after pwmchip_remove() 2021-04-09 14:46:58 +02:00
pwm-stm32-lp.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-stm32.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-stmpe.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-sun4i.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-tegra.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-tiecap.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-tiehrpwm.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-twl-led.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-twl.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-vt8500.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
sysfs.c pwm: Allow store 64-bit duty cycle from sysfs interface 2020-09-24 09:18:14 +02:00