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drm/i915/tc: Check for TC PHY explicitly in intel_tc_port_fia_max_lane_count()
author
Imre Deak
<imre.deak@intel.com>
Thu, 23 Mar 2023 14:20:12 +0000
(16:20 +0200)
committer
Imre Deak
<imre.deak@intel.com>
Mon, 3 Apr 2023 08:35:30 +0000
(11:35 +0300)
Check explicitly if the port passed to
intel_tc_port_fia_max_lane_count() has a TC PHY, instead of relying on
the default TC mode value set for non-TC PHY ports.
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link:
https://patchwork.freedesktop.org/patch/msgid/20230323142035.1432621-7-imre.deak@intel.com
drivers/gpu/drm/i915/display/intel_tc.c
patch
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diff --git
a/drivers/gpu/drm/i915/display/intel_tc.c
b/drivers/gpu/drm/i915/display/intel_tc.c
index
d6fc9c5
..
4995c63
100644
(file)
--- a/
drivers/gpu/drm/i915/display/intel_tc.c
+++ b/
drivers/gpu/drm/i915/display/intel_tc.c
@@
-188,10
+188,11
@@
int intel_tc_port_fia_max_lane_count(struct intel_digital_port *dig_port)
{
struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
struct intel_tc_port *tc = to_tc_port(dig_port);
+ enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
intel_wakeref_t wakeref;
u32 lane_mask;
- if (tc->mode != TC_PORT_DP_ALT)
+ if (
!intel_phy_is_tc(i915, phy) ||
tc->mode != TC_PORT_DP_ALT)
return 4;
assert_tc_cold_blocked(tc);