4 Commits

Author	SHA1	Message	Date
Kever Yang	0b60111aa6	power: regulator: pwm: support pwm polarity setting ... 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>	2017-05-10 13:37:21 -06:00
Simon Glass	fc760cb8c4	dm: pwm: Add a PWM uclass ... 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>	2016-01-21 20:42:36 -07:00
Wolfgang Denk	1a4596601f	Add GPL-2.0+ SPDX-License-Identifier to source files ... Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>	2013-07-24 09:44:38 -04:00
Donghwa Lee	3f129280b3	ARM: S5P: pwm driver support ... 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>	2011-03-27 19:19:54 +02:00