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author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-05-09 16:03:25 +0200 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-05-10 10:21:08 +0200 |
commit | d673c02c4bdbcbe3076a2680f9c954be26b525c8 (patch) | |
tree | 6a3535fa5b309037993de557aaf8360caee0281e /tools/thermal/tmon/Makefile | |
parent | 315f0242aa2b1e999bc1211123f7b6664068dba4 (diff) | |
download | linux-stable-d673c02c4bdbcbe3076a2680f9c954be26b525c8.tar.gz linux-stable-d673c02c4bdbcbe3076a2680f9c954be26b525c8.tar.bz2 linux-stable-d673c02c4bdbcbe3076a2680f9c954be26b525c8.zip |
drm/vblank: Switch drm_driver->get_vblank_timestamp to return a bool
There's really no reason for anything more:
- Calling this while the crtc vblank stuff isn't set up is a driver
bug. Those places alrready DRM_ERROR.
- Calling this when the crtc is off is either a driver bug (calling
drm_crtc_handle_vblank at the wrong time) or a core bug (for
anything else). Again, we DRM_ERROR.
- EINVAL is checked at higher levels already, and if we'd use struct
drm_crtc * instead of (dev, pipe) it would be real obvious that
those are again core bugs.
The only valid failure mode is crap hardware that couldn't sample a
useful timestamp, to ask the core to just grab a not-so-accurate
timestamp. Bool is perfectly fine for that.
v2: Also fix up the one caller, I lost that in the shuffling (Jani).
v3: Fixup commit message (Neil).
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Cc: Eric Anholt <eric@anholt.net>
Cc: Rob Clark <robdclark@gmail.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170509140329.24114-1-daniel.vetter@ffwll.ch
Diffstat (limited to 'tools/thermal/tmon/Makefile')
0 files changed, 0 insertions, 0 deletions