On Thu, Mar 16, 2017 at 05:03:05PM +0100, Linus Walleij wrote: > On Thu, Mar 16, 2017 at 7:42 AM, Ralph Sennhauser > <ralph.sennhauser@xxxxxxxxx> wrote: > > > From: Andrew Lunn <andrew@xxxxxxx> > > > > Armada 370/XP devices can 'blink' gpio lines with a configurable on > > and off period. This can be modelled as a PWM. > > > > However, there are only two sets of PWM configuration registers for > > all the gpio lines. This driver simply allows a single gpio line per > > gpio chip of 32 lines to be used as a PWM. Attempts to use more return > > EBUSY. > > > > Due to the interleaving of registers it is not simple to separate the > > PWM driver from the gpio driver. Thus the gpio driver has been > > extended with a PWM driver. > > > > Signed-off-by: Andrew Lunn <andrew@xxxxxxx> > > URL: https://patchwork.ozlabs.org/patch/427287/ > > URL: https://patchwork.ozlabs.org/patch/427295/ > > [Ralph Sennhauser: > > * port forward > > * merge pwm portion into gpio-mvebu.c > > * merge doc patch > > * update MAINAINERS] > > Signed-off-by: Ralph Sennhauser <ralph.sennhauser@xxxxxxxxx> > > In essence I am very positive of this patch set and happy to merge > it as a PWM driver inside of GPIO if Thierry is OK with it. No objections to the concept of making a GPIO driver implement a PWM chip when it makes sense. Thierry
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