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[3/5,SRU,J/OEM-5.14] drm/i915/display: Remove check for low voltage sku for max dp source rate

Message ID 20220406080355.3466-4-koba.ko@canonical.com
State New
Headers show
Series Fix ADL, WD22TB4, Dual monitors display resolution can't reach 4K 60hz | expand

Commit Message

Koba Ko April 6, 2022, 8:03 a.m. UTC 
From: Ankit Nautiyal <ankit.k.nautiyal@intel.com>

BugLink: https://bugs.launchpad.net/bugs/1967986

The low voltage sku check can be ignored as OEMs need to consider that
when designing the board and then put any limits in VBT.

Same is now changed in Bspec pages.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5272

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220315080247.1161844-2-ankit.k.nautiyal@intel.com
(cherry picked from commit 73867c8709b569cdd7fda67f01dfe02c8d055521
drmtip)
Signed-off-by: Koba Ko <koba.ko@canonical.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index dbff4b6aa22b..4afe2caadaba 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -283,7 +283,10 @@  intel_dp_set_source_rates(struct intel_dp *intel_dp)
 	if (DISPLAY_VER(dev_priv) >= 11) {
 		source_rates = icl_rates;
 		size = ARRAY_SIZE(icl_rates);
-		if (IS_JSL_EHL(dev_priv))
+		if (IS_ALDERLAKE_P(dev_priv) || IS_ALDERLAKE_S(dev_priv) ||
+			 IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv))
+			max_rate = 810000;
+		else if (IS_JSL_EHL(dev_priv))
 			max_rate = ehl_max_source_rate(intel_dp);
 		else
 			max_rate = icl_max_source_rate(intel_dp);