Messages in this thread | | | From | Laurent Pinchart <> | Subject | Re: [PATCH v2 1/2] media: vsp1: Document max_width restriction on SRU | Date | Fri, 14 Sep 2018 17:48:51 +0300 |
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Hi Kieran,
Thank you for the patch.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
On Friday, 14 September 2018 17:26:51 EEST Kieran Bingham wrote: > The SRU is currently restricted to 256 pixels as part of the current > partition algorithm. Document that the actual capability of this > component is 288 pixels, but don't increase the implementation. > > The extended partition algorithm may later choose to utilise a larger > input to support overlapping partitions which will improve the quality > of the output images. > > Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> > --- > drivers/media/platform/vsp1/vsp1_sru.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/media/platform/vsp1/vsp1_sru.c > b/drivers/media/platform/vsp1/vsp1_sru.c index d216707f64c9..19f91eb81134 > 100644 > --- a/drivers/media/platform/vsp1/vsp1_sru.c > +++ b/drivers/media/platform/vsp1/vsp1_sru.c > @@ -314,6 +314,11 @@ static unsigned int sru_max_width(struct vsp1_entity > *entity, output = vsp1_entity_get_pad_format(&sru->entity, > sru->entity.config, SRU_PAD_SOURCE); > > + /* > + * The maximum input width of the SRU is 288 input pixels, but 32 > + * pixels are reserved to support overlapping partition windows when > + * scaling. > + */ > if (input->width != output->width) > return 512; > else
-- Regards,
Laurent Pinchart
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