[2/4] drm/i915: Bump HDMI min port clock to 25 MHz
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Message ID 1435667634-4574-3-git-send-email-ville.syrjala@linux.intel.com
State New
Headers show

Commit Message

Ville Syrjälä June 30, 2015, 12:33 p.m. UTC
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Increase the HDMI port minimum port clock from 20 to 25 MHz. This is
is the minimum listed in the DVI/HDMI specs, and it's also the
documented minimum DPLL frequency for most of our platforms.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_hdmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 00c4b40..69244ed 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -1175,7 +1175,7 @@  intel_hdmi_mode_valid(struct drm_connector *connector,
 	if (clock > hdmi_portclock_limit(intel_attached_hdmi(connector),
 					 true))
 		return MODE_CLOCK_HIGH;
-	if (clock < 20000)
+	if (clock < 25000)
 		return MODE_CLOCK_LOW;
 
 	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)