Avoid bogus asserts on Lynx Point.
Signed-off-by: Eugeni Dodonov <[email protected]>
---
drivers/gpu/drm/i915/intel_display.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 8308da0..ca0edbf 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -917,6 +917,11 @@ static void assert_pch_pll(struct drm_i915_private
*dev_priv,
u32 val;
bool cur_state;
+ if (HAS_PCH_LPT(dev_priv->dev)) {
+ DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n");
+ return;
+ }
+
if (!intel_crtc->pch_pll) {
WARN(1, "asserting PCH PLL enabled with no PLL\n");
return;
@@ -1102,6 +1107,11 @@ static void assert_pch_refclk_enabled(struct
drm_i915_private *dev_priv)
u32 val;
bool enabled;
+ if (HAS_PCH_LPT(dev_priv->dev)) {
+ DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping
check\n");
+ return;
+ }
+
val = I915_READ(PCH_DREF_CONTROL);
enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK |
DREF_SUPERSPREAD_SOURCE_MASK));
--
1.7.10
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