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| author | Jani Nikula <jani.nikula@intel.com> | 2013-04-12 15:18:37 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-04-25 14:10:10 +0200 |
| commit | 8ba2d18520ce380cf572e9902d9b3b91ece6c2c0 (patch) | |
| tree | eb1ecb47ee2f713bc2980e97db7a0b566334ff90 /tools/perf/scripts/python/failed-syscalls-by-pid.py | |
| parent | d65406327345e5a5e0f697a3ffe3e53bc9b5d7c6 (diff) | |
drm/i915: protect backlight registers and data with a spinlock
Backlight data and registers are fiddled through LVDS/eDP modeset
enable/disable hooks, backlight sysfs files, asle interrupts, and register
save/restore. Protect the backlight related registers and driver private
fields using a spinlock.
The locking in register save/restore covers a little more than is strictly
necessary, including non-modeset case, for simplicity.
v2: Cover register access, save/restore, i915_read_blc_pwm_ctl() and code
paths leading there.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'tools/perf/scripts/python/failed-syscalls-by-pid.py')
0 files changed, 0 insertions, 0 deletions