From: Daniel Vetter Date: Tue, 3 Feb 2015 15:37:45 +0000 (+0100) Subject: drm: remove DRM_FORMAT_NV12MT X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~75^2~6^2~1 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=083500baefd5f4c215a5a93aef2492c1aa775828;p=pandora-kernel.git drm: remove DRM_FORMAT_NV12MT So this has been merged originally in commit 83052d4d5cd518332440bb4ee63d68bb5f744e0f Author: Seung-Woo Kim Date: Thu Dec 15 15:40:55 2011 +0900 drm: Add multi buffer plane pixel formats which hasn't seen a lot of review really. The problem is that it's not a real pixel format, but just a different way to lay out NV12 pixels in macroblocks, i.e. a tiling format. The new way of doing this is with the soon-to-be-merged fb modifiers. This was brough up in some long irc discussion around the entire topic, as an example of where things have gone wrong. Luckily we can correct the mistake: - The kms side support for NV12MT is all dead code because format_check in drm_crtc.c never accepted NV12MT. - The gem side for the gsc support doesn't look better: The code forgets to set the pixel format and makes a big mess with the tiling mode bits, inadvertedly setting them all. Conclusion: This never really worked (at least not in upstream) and hence we can safely correct our mistake here. Cc: Seung-Woo Kim Cc: Inki Dae Cc: Kyungmin Park Cc: Rob Clark Cc: Daniel Stone Cc: Damien Lespiau Reviewed-by: Rob Clark Reviewed-by: Gustavo Padovan Acked-by: Joonyoung Shim Acked-by: Seung-Woo Kim Signed-off-by: Daniel Vetter --- Reading git-diff-tree failed