Hi Geert,

On Friday 20 November 2015 10:07:31 Geert Uytterhoeven wrote:
> On Fri, Nov 20, 2015 at 9:58 AM, Laurent Pinchart wrote:
> > On Friday 20 November 2015 09:22:16 Geert Uytterhoeven wrote:
> >> On Thu, Nov 19, 2015 at 10:08 PM, Laurent Pinchart wrote:
> >>> Could you briefly explain (and even better in a source code comment)
> >>> how you handle baud rate calculation with the chained BRGs ?
> >> 
> >> I'll do that. Note that there's no chaining of BRGs, only muxing (so yes,
> >> it needs more clarification ;-).
> > 
> > Really ? I thought the BRG-EC was one possible input for the internal BRG
> > ? Does it bypass the internal BRG ? Or do you configure the internal BRG
> > to not divide the clock when using the BRG-EC ?
> 
> Yes, it's bypassed.
> 
> Cfr. SCSCR.CKE[1:0].
> '00' means internal BRG (although the docs state P divided by 1/4/16/64),
> '10' means SCK or SC_CLK (SCIF_CLK/INT_CLK).

That's indeed simpler. Could you capture the behaviour in a source code 
comment ?

-- 
Regards,

Laurent Pinchart

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to