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drm/i915/dp: Convert link training error to debug message on disconnected sink

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If a sink is disconnected it's expected that link training actions will
fail on it, so downgrade the error messages about such actions to be a
debug message. Such - expected - link training failures are more
frequent after a follow up patch, after which an active TypeC link is
reset after the sink is disconnected which also involves a link
training.

v2:
- Check the actual HPD state to handle the forced connector state case.
  (Vinod)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v1)
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230510103131.1618266-10-imre.deak@intel.com
This commit is contained in:
Imre Deak 2023-05-10 13:31:26 +03:00
parent f48eab2902
commit 9031c6d4f7
1 changed files with 8 additions and 4 deletions
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12
drivers/gpu/drm/i915/display/intel_dp_link_training.c
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@ -38,10 +38,14 @@
LT_MSG_PREFIX _format, \
LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__)
#define lt_err(_intel_dp, _dp_phy, _format, ...) \
drm_err(&dp_to_i915(_intel_dp)->drm, \
LT_MSG_PREFIX _format, \
LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__)
#define lt_err(_intel_dp, _dp_phy, _format, ...) do { \
if (intel_digital_port_connected(&dp_to_dig_port(_intel_dp)->base)) \
drm_err(&dp_to_i915(_intel_dp)->drm, \
LT_MSG_PREFIX _format, \
LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__); \
else \
lt_dbg(_intel_dp, _dp_phy, "Sink disconnected: " _format, ## __VA_ARGS__); \
} while (0)
static void intel_dp_reset_lttpr_common_caps(struct intel_dp *intel_dp)
{