[PATCH] ARM: OMAP1: DMA: Correct the number of logical channels
Tony Lindgren
tony at atomide.com
Fri Jan 6 08:33:35 PST 2017
* Aaro Koskinen <aaro.koskinen at iki.fi> [170105 13:48]:
> Hi,
>
> On Tue, Jan 03, 2017 at 01:22:34PM +0200, Peter Ujfalusi wrote:
> > OMAP1510, OMAP5910 and OMAP310 have only 9 logical channels.
> > OMAP1610, OMAP5912, OMAP1710, OMAP730, and OMAP850 have 16 logical channels
> > available.
> >
> > The wired 17 for the lch_count must have been used to cover the 16 + 1
> > dedicated LCD channel, in reality we can only use 9 or 16 channels.
> >
> > The d->chan_count is not used by the omap-dma stack, so we can skip the
> > setup. chan_count was configured to the number of logical channels and not
> > the actual number of physical channels anyways.
> >
> > Signed-off-by: Peter Ujfalusi <peter.ujfalusi at ti.com>
>
> Acked-by: Aaro Koskinen <aaro.koskinen at iki.fi>
Applying into omap-for-v4.10/fixes thanks.
Tony
More information about the linux-arm-kernel
mailing list