Re: [PATCH 0/1] fix for pwm-mxs period divider computation
From: Thierry Reding
Date: Wed Feb 18 2015 - 07:08:34 EST
On Wed, Feb 18, 2015 at 09:18:55AM +0100, Gaetan Hug wrote:
> Hello Thierry,
> I found a bug in the pwm-mxs.c driver for the i.MX28 platform.
> The driver computes from the desired period which clock divider it
> should be using. This computation assumes that the link between the
> register value and the actual divider value is raising 2 to the power of
> the registry value.
> div = 1 << regvalue
> This is true only for the first 5 values out of 8. Next values are
> 64, 256 and, 1024.
> This affects only the user only if he requests a period > 0.04369s.
Can you put this description into the commit message of the proper
Also, the subject should be in the following format:
pwm: mxs: Fix period divider computation
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