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authorVille Syrjälä <ville.syrjala@linux.intel.com>2024-04-05 00:34:27 +0300
committerVille Syrjälä <ville.syrjala@linux.intel.com>2024-04-08 15:27:46 +0300
commitb37e1347b991459c38c56ec2476087854a4f720b (patch)
treed78b2cde7a58a07399b23037d259fd04e963e1d7
parent372fa0c79d3f289f813d8001e0a8a96d1011826c (diff)
drm/i915: Disable port sync when bigjoiner is used
The current modeset sequence can't handle port sync and bigjoiner at the same time. Refuse port sync when bigjoiner is needed, at least until we fix the modeset sequence. v2: Add a FIXME (Vandite) Cc: stable@vger.kernel.org Tested-by: Vidya Srinivas <vidya.srinivas@intel.com> Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240404213441.17637-4-ville.syrjala@linux.intel.com Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
-rw-r--r--drivers/gpu/drm/i915/display/intel_ddi.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 8a4dfd561c34..793ef3e387c6 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -4243,7 +4243,12 @@ static bool m_n_equal(const struct intel_link_m_n *m_n_1,
static bool crtcs_port_sync_compatible(const struct intel_crtc_state *crtc_state1,
const struct intel_crtc_state *crtc_state2)
{
+ /*
+ * FIXME the modeset sequence is currently wrong and
+ * can't deal with bigjoiner + port sync at the same time.
+ */
return crtc_state1->hw.active && crtc_state2->hw.active &&
+ !crtc_state1->bigjoiner_pipes && !crtc_state2->bigjoiner_pipes &&
crtc_state1->output_types == crtc_state2->output_types &&
crtc_state1->output_format == crtc_state2->output_format &&
crtc_state1->lane_count == crtc_state2->lane_count &&