[PATCH v2 4/7] ARM: shmobile: r8a7791: Add SYS-DMAC channel definitions for bindings
laurent.pinchart at ideasonboard.com
Wed Jun 4 04:53:35 PDT 2014
On Wednesday 04 June 2014 12:45:19 Ben Dooks wrote:
> On 04/06/14 12:30, Laurent Pinchart wrote:
> > On Tuesday 03 June 2014 09:53:17 Geert Uytterhoeven wrote:
> >> On Mon, Jun 2, 2014 at 3:52 PM, Ben Dooks wrote:
> >>>> +// FIXME
> >>>> +#define CHCR_RX_8BIT SHDMA_ARM_CHCR_RX(SHDMA_ARM_SZ_8BIT)
> >>>> +#define CHCR_TX_8BIT SHDMA_ARM_CHCR_TX(SHDMA_ARM_SZ_8BIT)
> >>>> +#define CHCR_RX_16BIT SHDMA_ARM_CHCR_RX(SHDMA_ARM_SZ_16BIT)
> >>>> +#define CHCR_TX_16BIT SHDMA_ARM_CHCR_TX(SHDMA_ARM_SZ_16BIT)
> >>>> +#define CHCR_RX_32BIT SHDMA_ARM_CHCR_RX(SHDMA_ARM_SZ_32BIT)
> >>>> +#define CHCR_TX_32BIT SHDMA_ARM_CHCR_TX(SHDMA_ARM_SZ_32BIT)
> >>>> +#define CHCR_RX_256BIT SHDMA_ARM_CHCR_RX(SHDMA_ARM_SZ_256BIT)
> >>>> +#define CHCR_TX_256BIT SHDMA_ARM_CHCR_TX(SHDMA_ARM_SZ_256BIT)
> >>> I am pretty sure for round-2 we can remove these in favour of a
> >>> table in the driver. The only device that has a non-standard setting
> >>> is the SDHI and that will support 32bit and 256bit transfers.
> >> Thanks, I'm eagerly awaiting your next version...
> > Speaking of that, Ben, do you have a git tree with your latest patches ?
> Not yet, as currently working on sorting out the soc_camera before
> moving back to the DMA. I have a plan, just not had the time to sort
> it out.
I need to start implementing LPAE support for the DMAC using descriptors, and
I have to decide whether I'll go for a new driver of fix the existing one(s).
Having access to your code, even if it's work in progress, would be helpful,
otherwise there will be a high chance of conflicts.
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