linux-kernel - Re: [PATCH] pwm: atmel: Fix disabling of PWM channels

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Message-ID: <20160711101657.GK5823@ulmo.ba.sec>
Date:	Mon, 11 Jul 2016 12:16:57 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	Guillermo Rodriguez <guille.rodriguez@...il.com>
Cc:	linux-kernel@...r.kernel.org, linux-pwm@...r.kernel.org,
	Nicolas Ferre <nicolas.ferre@...el.com>
Subject: Re: [PATCH] pwm: atmel: Fix disabling of PWM channels

On Fri, May 13, 2016 at 01:09:37PM +0200, Guillermo Rodriguez wrote:
> When disabling a PWM channel, the PWM clock was being stopped
> immediately after writing to PWM_DIS. As a result, the disabling
> of the PWM channel did not complete properly, and the PWM output
> might be left at the wrong level.
> 
> Fix this by waiting for the channel to be effectively disabled
> (by checking the PWM_SR register) before disabling the clock.
> 
> Signed-off-by: Guillermo Rodriguez <guille.rodriguez@...il.com>
> ---
>  drivers/pwm/pwm-atmel.c |   10 ++++++++++
>  1 file changed, 10 insertions(+)

Applied, thanks.

Thierry

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