[PATCH v8 1/2] mfd: add atmel-hlcdc driver

Thierry Reding thierry.reding at gmail.com
Tue Oct 7 03:06:33 PDT 2014


On Tue, Oct 07, 2014 at 10:59:32AM +0100, Lee Jones wrote:
> On Tue, 07 Oct 2014, Thierry Reding wrote:
> 
> > On Tue, Oct 07, 2014 at 10:44:27AM +0100, Lee Jones wrote:
> > > On Mon, 06 Oct 2014, Boris Brezillon wrote:
> > > 
> > > > The HLCDC IP available on some Atmel SoCs (i.e. at91sam9n12, at91sam9x5
> > > > family or sama5d3 family) exposes 2 subdevices:
> > > > - a display controller (controlled by a DRM driver)
> > > > - a PWM chip
> > > > 
> > > > The MFD device provides a regmap and several clocks (those connected
> > > > to this hardware block) to its subdevices.
> > > > 
> > > > This way concurrent accesses to the iomem range are handled by the regmap
> > > > framework, and each subdevice can safely access HLCDC registers.
> > > > 
> > > > Signed-off-by: Boris Brezillon <boris.brezillon at free-electrons.com>
> > > > Acked-by: Lee Jones <lee.jones at linaro.org>
> > > > Tested-by: Anthony Harivel <anthony.harivel at emtrion.de>
> > > > Tested-by: Ludovic Desroches <ludovic.desroches at atmel.com>
> > > > ---
> > > >  drivers/mfd/Kconfig             |   6 ++
> > > >  drivers/mfd/Makefile            |   1 +
> > > >  drivers/mfd/atmel-hlcdc.c       | 122 ++++++++++++++++++++++++++++++++++++++++
> > > >  include/linux/mfd/atmel-hlcdc.h |  85 ++++++++++++++++++++++++++++
> > > >  4 files changed, 214 insertions(+)
> > > >  create mode 100644 drivers/mfd/atmel-hlcdc.c
> > > >  create mode 100644 include/linux/mfd/atmel-hlcdc.h
> > > 
> > > Applied for v3.19.
> > 
> > Will you provide a stable branch that I can pull into the PWM tree?
> 
> I hadn't planned on it.  What do you need that for?

Because the PWM driver depends on this series. But if you prefer you
could also take the PWM driver through your tree.

Thierry
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