drm/meson: Fix atomic mode switching regression

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commit ce0210c124 upstream.

Since commit 2bcd3ecab7 when switching mode from X11 (ubuntu mate for
example) the display gets blurry, looking like an invalid framebuffer width.

This commit fixed atomic crtc modesetting in a totally wrong way and
introduced a local unnecessary ->enabled crtc state.

This commit reverts the crctc _begin() and _enable() changes and simply
adds drm_atomic_helper_commit_tail_rpm as helper.

Reported-by: Tony McKahan <tonymckahan@gmail.com>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Fixes: 2bcd3ecab7 ("drm/meson: Fixes for drm_crtc_vblank_on/off support")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[narmstrong: fixed blank line issue from checkpatch]
Link: https://patchwork.freedesktop.org/patch/msgid/20190114153118.8024-1-narmstrong@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Neil Armstrong 2019-01-14 16:31:18 +01:00 • committed by Greg Kroah-Hartman

parent f85be7e0d7

commit ecb4e06baf

2 changed files with 7 additions and 21 deletions

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23

drivers/gpu/drm/meson/meson_crtc.c

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5

drivers/gpu/drm/meson/meson_drv.c

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