[Intel-gfx] [PATCH] drm/i915: Fix HSW power well control state read

[Zhenyu Wang]

Fix power well control state by reading real register offset.

Signed-off-by: Zhenyu Wang <zhenyuw at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 838d67d..3bcaad6 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3812,7 +3812,7 @@ void intel_init_power_wells(struct drm_device *dev)
 
 		if ((well & HSW_PWR_WELL_STATE) == 0) {
 			I915_WRITE(power_wells[i], well & HSW_PWR_WELL_ENABLE);
-			if (wait_for(I915_READ(power_wells[i] & HSW_PWR_WELL_STATE), 20))
+			if (wait_for((I915_READ(power_wells[i]) & HSW_PWR_WELL_STATE), 20))
 				DRM_ERROR("Error enabling power well %lx\n", power_wells[i]);
 		}
 	}
-- 
1.7.10.4