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| author | Imre Deak <imre.deak@intel.com> | 2024-06-10 19:49:22 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2024-06-13 21:26:49 +0300 |
| commit | c9a5f6019c6ce9245b8fd11a66d405f26e6cfa34 (patch) | |
| tree | 854d89ac78d33c599818d17836dd26889c5fa230 /drivers/gpu/drm/i915/display/intel_dp.c | |
| parent | 182c6be08b81b367b98634c40870fc06cd4eca42 (diff) | |
| download | linux-c9a5f6019c6ce9245b8fd11a66d405f26e6cfa34.tar.gz linux-c9a5f6019c6ce9245b8fd11a66d405f26e6cfa34.tar.bz2 linux-c9a5f6019c6ce9245b8fd11a66d405f26e6cfa34.zip | |
drm/i915/dp: Send a link training modeset-retry uevent to all MST connectors
Send a modeset-retry uevent to all connectors in the same MST topology
after a link training failure and reduction of the link parameters. This
matches the way the same uevent is sent after a DP tunnel BW allocation
failure.
v2: Add NOTE that the atomic state may not be valid for SST links and
assert that it's valid for MST links. (Ville)
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240610164933.2947366-11-imre.deak@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index d41c00f720a1..afc8719cf5f5 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2801,7 +2801,7 @@ intel_dp_audio_compute_config(struct intel_encoder *encoder, intel_dp_is_uhbr(pipe_config); } -void intel_dp_queue_modeset_retry_work(struct intel_connector *connector) +static void intel_dp_queue_modeset_retry_work(struct intel_connector *connector) { struct drm_i915_private *i915 = to_i915(connector->base.dev); @@ -2810,6 +2810,7 @@ void intel_dp_queue_modeset_retry_work(struct intel_connector *connector) drm_connector_put(&connector->base); } +/* NOTE: @state is only valid for MST links and can be %NULL for SST. */ void intel_dp_queue_modeset_retry_for_link(struct intel_atomic_state *state, struct intel_encoder *encoder, @@ -2818,6 +2819,7 @@ intel_dp_queue_modeset_retry_for_link(struct intel_atomic_state *state, struct intel_connector *connector; struct intel_digital_connector_state *conn_state; struct intel_dp *intel_dp = enc_to_intel_dp(encoder); + struct drm_i915_private *i915 = dp_to_i915(intel_dp); int i; if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) { @@ -2826,6 +2828,9 @@ intel_dp_queue_modeset_retry_for_link(struct intel_atomic_state *state, return; } + if (drm_WARN_ON(&i915->drm, !state)) + return; + for_each_new_intel_connector_in_state(state, connector, conn_state, i) { if (!conn_state->base.crtc) continue; |