diff options
| author | Paulo Zanoni <paulo.r.zanoni@intel.com> | 2013-03-22 14:07:23 -0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-03-24 13:22:33 +0100 |
| commit | 2124b72e6283c4e84a55e71077fee91793f4c801 (patch) | |
| tree | 03cb24a812671a14fed63359fa673b5f34c3250f /drivers/gpu/drm/i915/intel_pm.c | |
| parent | bba2181c49f1dddf8b592804a1b53cc1a3cf408a (diff) | |
drm/i915: don't disable the power well yet
We're still not 100% ready to disable the power well, so don't disable
it for now. When we disable it we break the audio driver (because some
of the audio registers are on the power well) and machines with eDP on
port D (because it doesn't use TRANSCODER_EDP).
Also, instead of just reverting the code, add a Kernel option to let
us disable it if we want. This will allow us to keep developing and
testing the feature while it's not enabled.
This fixes problems caused by the following commit:
commit d6dd9eb1d96d2b7345fe4664066c2b7ed86da898
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Jan 29 16:35:20 2013 -0200
drm/i915: dynamic Haswell display power well support
References: http://www.mail-archive.com/intel-gfx@lists.freedesktop.org/msg18788.html
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index a1794c6df1b..adca00783e6 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4079,6 +4079,9 @@ void intel_set_power_well(struct drm_device *dev, bool enable) if (!IS_HASWELL(dev)) return; + if (!i915_disable_power_well && !enable) + return; + tmp = I915_READ(HSW_PWR_WELL_DRIVER); is_enabled = tmp & HSW_PWR_WELL_STATE; enable_requested = tmp & HSW_PWR_WELL_ENABLE; |