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* drm: Consolidate and document sysfs supportDaniel Vetter2017-04-041-4/+4
| | | | | | | | | | | - remove docs for internal func, doesn't add value - add short overview snippet instead explaining that drivers don't have to bother themselves with reg/unreg concerns - drop the ttm comment about drmP.h, drmP.h is disappearing ... Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170404095304.17599-2-daniel.vetter@ffwll.ch
* drm: drop extern from function declsDaniel Vetter2017-03-241-2/+2
| | | | | | | | | | It's the default storage class for functions, entirely redundant. And a lot of these headers are a bit inconsistent due to organically grown. Reviewed-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170322083617.13361-2-daniel.vetter@ffwll.ch
* drm: Enable drm drivers to add drm sysfs devices.Thomas Hellstrom2009-08-191-0/+12
Export utility functions for drivers to add specialized devices in the sysfs drm class subdirectory. Initially this will be needed form TTM to add a virtual device that handles power management. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
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