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drm/i915: don't run hsw power well code on !hsw 

Dumps annoying noise into the dmesg:

[drm:intel_set_power_well] *ERROR* Timeout enabling power well

Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2013-01-30 15:59:56 +01:00
parent 6b25a88752
commit d5f21e4072
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/intel_pm.c
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@ -4053,6 +4053,9 @@ void intel_set_power_well(struct drm_device *dev, bool enable)
bool is_enabled, enable_requested;
uint32_t tmp;
if (!IS_HASWELL(dev))
return;
tmp = I915_READ(HSW_PWR_WELL_DRIVER);
is_enabled = tmp & HSW_PWR_WELL_STATE;
enable_requested = tmp & HSW_PWR_WELL_ENABLE;