On 7/6/2015 5:14 PM, ville.syrjala@xxxxxxxxxxxxxxx wrote:
From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Since
commit e62925567c7926e78bc8ca976cde5c28ea265a49
Author: Vandana Kannan <vandana.kannan@xxxxxxxxx>
Date: Wed Jul 1 17:02:57 2015 +0530
drm/i915/bxt: BUNs related to port PLL
BXT DPLL can now generate frequencies in the 216-223 MHz range.
Adjust the HDMI port clock checks to account for the reduced range
of invalid frequencies.
Cc: Vandana Kannan <vandana.kannan@xxxxxxxxx>
Cc: Imre Deak <imre.deak@xxxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_hdmi.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index c7e912b..70bad5b 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -1174,9 +1174,12 @@ hdmi_port_clock_valid(struct intel_hdmi *hdmi,
if (clock > hdmi_port_clock_limit(hdmi, respect_dvi_limit))
return MODE_CLOCK_HIGH;
- /* CHV/BXT DPLL can't generate 216-240 MHz */
- if ((IS_CHERRYVIEW(dev) || IS_BROXTON(dev)) &&
- clock > 216000 && clock < 240000)
+ /* BXT DPLL can't generate 223-240 MHz */
+ if (IS_BROXTON(dev) && clock > 223333 && clock < 240000)
+ return MODE_CLOCK_RANGE;
+
BSpec needs an update based on this ?
It shows
"
HDMI/DVI link rates: 0.2 to 3.0 GHz Non-SSC*
*2.17 - 2.4 GHz not supported
"
- Vandana
+ /* CHV DPLL can't generate 216-240 MHz */
+ if (IS_CHERRYVIEW(dev) && clock > 216000 && clock < 240000)
return MODE_CLOCK_RANGE;
return MODE_OK;
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