[Intel-gfx] [PATCH 1/2] drm/i915: don't run hsw power well code on !hsw

[Daniel Vetter]

Dumps annoying noise into the dmesg:

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

Reported-by: Sedat Dilek <sedat.dilek at gmail.com>
Cc: Sedat Dilek <sedat.dilek at gmail.com>
Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/intel_pm.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 64d65f5..703219c 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -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;
-- 
1.7.10.4