pwm: rockchip: Avoid glitches on already running PWMs

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The current logic will disable the PWM clk even if the PWM was left
enabled by the bootloader (because it's controlling a critical device
like a regulator for example).
Keep the PWM clk enabled if the PWM is enabled to avoid any glitches.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

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Boris Brezillon 2016-06-14 11:13:13 +02:00 • committed by Thierry Reding

parent 1ebb74cf35

commit 48cf973cae

1 changed files with 19 additions and 1 deletions

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drivers/pwm/pwm-rockchip.c

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