From: matthew.s.atwood@intel.com
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH] drm/i915: make edp optimize config
Date: Fri, 16 Mar 2018 09:54:11 -0700 [thread overview]
Message-ID: <1521219251-25741-1-git-send-email-matthew.s.atwood@intel.com> (raw)
From: Matt Atwood <matthew.s.atwood@intel.com>
Previously it was assumed that eDP panels would advertise the lowest link
rate required for their singular mode to function. With the introduction
of more advanced features there are advantages to a panel advertising a
higher rate then it needs for a its given mode. For panels that did, the
driver previously used a higher rate then necessary for that mode.
Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com>
---
drivers/gpu/drm/i915/intel_dp.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index a2eeede..57b309c 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1766,8 +1766,10 @@ intel_dp_compute_config(struct intel_encoder *encoder,
* configuration, and typically these values correspond to the
* native resolution of the panel.
*/
- min_lane_count = max_lane_count;
- min_clock = max_clock;
+ if(dpcd[DP_DPCD_REV] < DPCD_REV_14){
+ min_lane_count = max_lane_count;
+ min_clock = max_clock;
+ }
}
for (; bpp >= 6*3; bpp -= 2*3) {
--
2.7.4
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next reply other threads:[~2018-03-16 17:05 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-16 16:54 matthew.s.atwood [this message]
2018-03-16 17:40 ` ✗ Fi.CI.BAT: failure for drm/i915: make edp optimize config (rev2) Patchwork
2018-03-18 23:41 ` [PATCH] drm/i915: make edp optimize config kbuild test robot
2018-03-19 0:06 ` kbuild test robot
2018-03-19 19:12 ` Jani Nikula
-- strict thread matches above, loose matches on Subject: below --
2018-03-09 1:17 matthew.s.atwood
2018-03-09 4:48 ` Benson Leung
2018-03-09 12:05 ` Jani Nikula
2018-03-10 0:07 ` Atwood, Matthew S
2018-03-12 19:25 ` Rodrigo Vivi
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