Gabriel Krisman Bertazi cd2523569a drm: Always prepare null framebuffer in transitional helper ... Despite the documentation claim that cleanup_fb will match prior calls to prepare_fb, in case of NULL framebuffers in the transitional helpers, the code will skip the call to prepare_fb but not the corresponding cleanup_fb call. This asymmetry in semantics is unnecessarily surprising for developers transitioning drivers to atomic model, specially because the final atomic handlers don't have the issue - the prepare_fb is always called, despite the new state framebuffer being null. The only current user of the transitional helper that doesn't take care of null framebuffers explicitly inside the prepare_fb hook is atmel_hlcdc, so we take special care to make sure we don't break anything there. Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170216164442.28704-1-krisman@collabora.co.uk		2017-02-26 21:57:24 +01:00
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atmel_hlcdc_crtc.c	drm: atmel: use vblank hooks in struct drm_crtc_funcs	2017-02-07 21:47:08 +01:00
atmel_hlcdc_dc.c	drm: atmel: use vblank hooks in struct drm_crtc_funcs	2017-02-07 21:47:08 +01:00
atmel_hlcdc_dc.h	drm: atmel-hlcdc: route DMA accesses through AHB interfaces	2016-04-14 09:17:28 +02:00
atmel_hlcdc_layer.c	drm: Replace drm_format_num_planes() with fb->format->num_planes	2016-12-15 14:55:31 +02:00
atmel_hlcdc_layer.h	drm: atmel-hlcdc: Atomic mode-setting conversion	2015-02-22 21:00:06 +01:00
atmel_hlcdc_output.c	drm: bridge: Link encoder and bridge in core code	2016-12-18 16:31:45 +05:30
atmel_hlcdc_plane.c	drm: Always prepare null framebuffer in transitional helper	2017-02-26 21:57:24 +01:00
Kconfig	drm/atmel-hlcdc: make fbdev support really optional	2016-07-15 10:28:33 -04:00
Makefile