From: Archit Taneja Date: Wed, 7 Nov 2012 06:15:02 +0000 (+0530) Subject: OMAPDSS: DISPC: Fix calc_scaling_44xx() bugs for writeback pipeline X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~2^2^2~47 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5d501085d4a949c1d60e289d5ed3df9e20acc494;p=pandora-kernel.git OMAPDSS: DISPC: Fix calc_scaling_44xx() bugs for writeback pipeline dispc_ovl_calc_scaling_44xx() doesn't work correctly for writeback. There are two issues with it: - the function tries to calculate pixel clock for the input plane using dispc_plane_pclk_rate(), calling this with writeback as input plane results in a BUG(), this function shouldn't be called for writeback at all. Fix this by calculating pixel clock only when we are not in mem to mem mode. - the maximum input_width is the product of the downscale ratio supported and the and the given output_width. This was calculated incorrectly by dividing output_width with maxdownscale. Fix this. Signed-off-by: Archit Taneja Signed-off-by: Tomi Valkeinen --- Reading git-diff-tree failed