Re: [PATCH v1 3/3] mfd: Add support for Intel Sunrisepoint LPSS devices

From: Mika Westerberg
Date: Tue Apr 28 2015 - 09:48:46 EST

On Tue, Apr 28, 2015 at 02:32:59PM +0100, Lee Jones wrote:
> On Tue, 31 Mar 2015, Andy Shevchenko wrote:
> > The new coming Intel platforms such as Skylake will contain Sunrisepoint PCH.
> > The main difference to the previous platforms is that the LPSS devices are
> > compound devices where usually main (SPI, HSUART, or I2C) and DMA IPs are
> > present.
> >
> > This patch brings the driver for such devices found on Sunrisepoint PCH.
> I'm not convinced it's really an MFD. What does this hardware look
> like? Are the Designware devices really in the same memory/register
> space as the LPSS registers?

Yes they are - there is only single MMIO BAR per PCI device holding, the
host controller, iDMA and convergence layer registers.
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