diff options
| author | Imre Deak <imre.deak@intel.com> | 2014-06-02 14:21:10 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-09 11:18:28 -0700 |
| commit | 2d29f7576d8a79e4effb79404e76ea911488a44e (patch) | |
| tree | d1e12079858379a44ecc54f161cbe32944d10168 /fs | |
| parent | 22d58715d7be9aaf334e00b33418156e58f87092 (diff) | |
drm/i915: fix display power sw state reporting
commit b8c000d9bf23e7c1155ef421f595d1cbc25262da upstream.
Atm, we refcount both power domains and power wells and
intel_display_power_enabled_sw() returns the power domain refcount. What
the callers are really interested in though is the sw state of the
underlying power wells. Due to this we will report incorrectly that a
given power domain is off if its power wells were enabled via another
power domain, for example POWER_DOMAIN_INIT which enables all power
wells.
As a fix return instead the state based on the refcount of all power
wells included in the passed in power domain.
References: https://bugs.freedesktop.org/show_bug.cgi?id=79505
References: https://bugs.freedesktop.org/show_bug.cgi?id=79038
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions