On Wed, Jan 19, 2011 at 09:31:55AM -0800, David Brown wrote:
> On Wed, Jan 19 2011, Jamie Iles wrote:
>
> >> @@ -38,9 +40,20 @@ struct msm_port {
> >> struct uart_port uart;
> >> char name[16];
> >> struct clk *clk;
> >> + struct clk *pclk;
> >> unsigned int imr;
> >> + unsigned int *gsbi_base;
> >> + int is_dm;
> >> + unsigned int old_snap_state;
> >> };
> >
> > Out of interest, what does .is_dm mean? Is that obvious to someone who
> > knows about msm?
>
> It would be clear to people rather familiar with the chip, but I agree
> it's probably not that clear of a name.
>
> We have two UART blocks we use in the MSMs, the older one, supported by
> this driver before this change, and a newer one that was designed to
> work with our DMA engine (known as the Data Mover, or dm). This newer
> UART can be used in a somewhat compatible manner when being used for
> serial-port type operations.
>
> I'm not sure what would be a better name for the flag, though. The
> block is called UARTDM.
Ok, it was mainly out of curiosity. I guess it could be 'use_dma' or
perhaps a comment to explain what DM is but my curiosity is now
satisfied ;-)
Jamie
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