From: Archit Taneja Date: Thu, 12 Dec 2013 08:35:59 +0000 (-0300) Subject: [media] v4l: ti-vpe: make vpe driver load scaler coefficients X-Git-Tag: v3.14-rc1~20^2~123 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=773f06577b35f84f84de980e1be3eead8342b5e5;p=pandora-kernel.git [media] v4l: ti-vpe: make vpe driver load scaler coefficients Make the driver allocate dma buffers to store horizontal and scaler coeffs. Use the scaler library api to choose and copy scaler coefficients to a the above buffers based on the scaling ratio. Since the SC block comes after the de-interlacer, make sure that the source height is doubled if de-interlacer was used. These buffers now need to be used by VPDMA to load the coefficients into the SRAM within SC. In device_run, add configuration descriptors which have payloads pointing to the scaler coefficients in memory. Use the members in sc_data handle to prevent addition of these descriptors if there isn't a need to re-load coefficients into SC. This comes helps unnecessary re-loading of the coefficients when we switch back and forth between vpe contexts. Signed-off-by: Archit Taneja Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Reading git-diff-tree failed