On Sun, Apr 09, 2017 at 08:09:27PM +0200, Ralph Sennhauser 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 > * Switch to atomic PWM API > * Add new compatible string marvell,armada-370-xp-gpio > * Update and merge documentation patch > * Update MAINTAINERS] > Signed-off-by: Ralph Sennhauser <ralph.sennhauser@xxxxxxxxx> > Tested-by: Andrew Lunn <andrew@xxxxxxx> > --- > .../devicetree/bindings/gpio/gpio-mvebu.txt | 32 ++ > MAINTAINERS | 2 + Acked-by: Rob Herring <robh@xxxxxxxxxx> > drivers/gpio/gpio-mvebu.c | 324 ++++++++++++++++++++- > 3 files changed, 346 insertions(+), 12 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
