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drm/i915: don't change VDD AUX status in panel power functions

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Mode set sequence outlines when the AUX VDD bit should be set and
cleared, and it's separate from the panel power sequence.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Jesse Barnes 2010-09-08 12:42:03 -07:00 committed by Chris Wilson
parent 33a34e4e59
commit 3969c9c927
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/i915/intel_dp.c
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@ -783,7 +783,7 @@ static bool ironlake_edp_panel_on (struct drm_device *dev)
DRM_ERROR("panel on wait timed out: 0x%08x\n",
I915_READ(PCH_PP_STATUS));
pp &= ~(PANEL_UNLOCK_REGS | EDP_FORCE_VDD);
pp &= ~(PANEL_UNLOCK_REGS);
pp |= PANEL_POWER_RESET; /* restore panel reset bit */
I915_WRITE(PCH_PP_CONTROL, pp);
POSTING_READ(PCH_PP_CONTROL);
@ -811,7 +811,7 @@ static void ironlake_edp_panel_off (struct drm_device *dev)
I915_READ(PCH_PP_STATUS));
/* Make sure VDD is enabled so DP AUX will work */
pp |= EDP_FORCE_VDD | PANEL_POWER_RESET; /* restore panel reset bit */
pp |= PANEL_POWER_RESET; /* restore panel reset bit */
I915_WRITE(PCH_PP_CONTROL, pp);
POSTING_READ(PCH_PP_CONTROL);
}