[Intel-gfx] [PATCH] drm/i915: fix HDMI clock readout on Haswell

Paulo Zanoni przanoni at gmail.com
Wed Jan 22 21:39:26 CET 2014


From: Paulo Zanoni <paulo.r.zanoni at intel.com>

This stops the WARNs when booting with an HDMI monitor connected.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
---
 drivers/gpu/drm/i915/intel_ddi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index fe2967e..cb6a65e 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -663,7 +663,7 @@ static int intel_ddi_calc_wrpll_link(struct drm_i915_private *dev_priv,
 	p = (wrpll & WRPLL_DIVIDER_POST_MASK) >> WRPLL_DIVIDER_POST_SHIFT;
 	n = (wrpll & WRPLL_DIVIDER_FB_MASK) >> WRPLL_DIVIDER_FB_SHIFT;
 
-	return (LC_FREQ * n) / (p * r);
+	return ((LC_FREQ * n) * 100) / (p * r);
 }
 
 static void intel_ddi_clock_get(struct intel_encoder *encoder,
-- 
1.8.4.2




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