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path: root/drivers/gpu/drm/i915/display/intel_dp_mst.c
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Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_mst.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 15541932b809..8600ac55f766 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -568,6 +568,7 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder,
&pipe_config->hw.adjusted_mode;
struct link_config_limits limits;
bool dsc_needed, joiner_needs_dsc;
+ int num_joined_pipes;
int ret = 0;
if (pipe_config->fec_enable &&
@@ -582,11 +583,13 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder,
adjusted_mode->crtc_clock))
pipe_config->joiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe);
+ num_joined_pipes = intel_crtc_num_joined_pipes(pipe_config);
+
pipe_config->sink_format = INTEL_OUTPUT_FORMAT_RGB;
pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
pipe_config->has_pch_encoder = false;
- joiner_needs_dsc = intel_dp_joiner_needs_dsc(dev_priv, pipe_config->joiner_pipes);
+ joiner_needs_dsc = intel_dp_joiner_needs_dsc(dev_priv, num_joined_pipes);
dsc_needed = joiner_needs_dsc || intel_dp->force_dsc_en ||
!intel_dp_mst_compute_config_limits(intel_dp,
@@ -1426,6 +1429,7 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
u16 dsc_max_compressed_bpp = 0;
u8 dsc_slice_count = 0;
int target_clock = mode->clock;
+ int num_joined_pipes;
if (drm_connector_is_unregistered(connector)) {
*status = MODE_ERROR;
@@ -1471,6 +1475,8 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
max_dotclk *= 2;
}
+ num_joined_pipes = joiner ? 2 : 1;
+
ret = drm_modeset_lock(&mgr->base.lock, ctx);
if (ret)
return ret;
@@ -1508,7 +1514,7 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
dsc = dsc_max_compressed_bpp && dsc_slice_count;
}
- if (intel_dp_joiner_needs_dsc(dev_priv, joiner) && !dsc) {
+ if (intel_dp_joiner_needs_dsc(dev_priv, num_joined_pipes) && !dsc) {
*status = MODE_CLOCK_HIGH;
return 0;
}