u-boot.git/include/pwm.h, branch v2017.09 Unnamed repository; edit this file 'description' to name the repository. power: regulator: pwm: support pwm polarity setting 2017-05-10T19:37:21+00:00 Kever Yang kever.yang@rock-chips.com 2017-04-24T02:27:49+00:00 0b60111aa66f51d05473a375070ca72d073a6fd3 The latest kernel PWM drivers enable the polarity settings. When system run from U-Boot to kerenl, if there are differences in polarity set or duty cycle, the PMW will re-init: close -> set polarity and duty cycle -> enable the PWM. The power supply controled by pwm regulator may have voltage shaking, which lead to the system not stable. Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com> Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org> 
The latest kernel PWM drivers enable the polarity settings. When system
run from U-Boot to kerenl, if there are differences in polarity set or
duty cycle, the PMW will re-init:
  close -> set polarity and duty cycle -> enable the PWM.
The power supply controled by pwm regulator may have voltage shaking,
which lead to the system not stable.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
dm: pwm: Add a PWM uclass 2016-01-22T03:42:36+00:00 Simon Glass sjg@chromium.org 2016-01-22T02:44:54+00:00 fc760cb8c4cc16061079fb45e2e0bad11e5acedc Add a uclass that supports Pulse Width Modulation (PWM) devices. It provides methods to enable/disable and configure the device. Signed-off-by: Simon Glass <sjg@chromium.org> 
Add a uclass that supports Pulse Width Modulation (PWM) devices. It
provides methods to enable/disable and configure the device.

Signed-off-by: Simon Glass <sjg@chromium.org>
Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24T13:44:38+00:00 Wolfgang Denk wd@denx.de 2013-07-08T07:37:19+00:00 1a4596601fd395f3afb8f82f3f840c5e00bdd57a Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> 
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
ARM: S5P: pwm driver support 2011-03-27T17:19:54+00:00 Donghwa Lee dh09.lee@samsung.com 2011-03-07T21:11:42+00:00 3f129280b3f1df51387447d8366ab6c3b6607547 This is common pwm driver of S5P. Signed-off-by: Donghwa Lee <dh09.lee@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> 
This is common pwm driver of S5P.

Signed-off-by: Donghwa Lee <dh09.lee@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>