On dsi cmd mode we do not receive vblanks instead
we would get TE and these flags indicate TE is expected on
which port.
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@xxxxxxxxx>
Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/icl_dsi.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index 776d9feb8481..2d3ec5c3e1de 100644
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -1546,6 +1546,24 @@ static int gen11_dsi_compute_config(struct intel_encoder *encoder,
pipe_config->hw.adjusted_mode.private_flags &=
~I915_MODE_FLAG_DSI_PERIODIC_CMD_MODE;
+ /*
+ * In case of TE GATE cmd mode, we
+ * receive TE from the slave if
+ * dual link is enabled
+ */
+ if (is_cmd_mode(intel_dsi)) {
+ if (intel_dsi->ports == (BIT(PORT_B) | BIT(PORT_A)))
+ pipe_config->hw.adjusted_mode.private_flags |=
+ I915_MODE_FLAG_DSI_USE_TE1 |
+ I915_MODE_FLAG_DSI_USE_TE0;
+ else if (intel_dsi->ports == BIT(PORT_B))
+ pipe_config->hw.adjusted_mode.private_flags |=
+ I915_MODE_FLAG_DSI_USE_TE1;
+ else
+ pipe_config->hw.adjusted_mode.private_flags |=
+ I915_MODE_FLAG_DSI_USE_TE0;
+ }
+
return 0;
}
--
2.21.0.5.gaeb582a
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