github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-01 19:13:47 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/i915/dp_mst: Extract helper to compute link for given joiner config

Browse Source 
Move the joiner-dependent portion of mst_stream_compute_config() into
mst_stream_compute_link_for_joined_pipes(), which computes the MST link
configuration for a specific num_joined_pipes.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260202103731.357416-10-ankit.k.nautiyal@intel.com
This commit is contained in:
Ankit Nautiyal 2026-02-02 16:07:23 +05:30
parent a120f802e0
commit 331a58a603
1 changed files with 48 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

73
drivers/gpu/drm/i915/display/intel_dp_mst.c
View File

@ -595,40 +595,19 @@ mst_stream_compute_config_limits(struct intel_dp *intel_dp,
dsc);
}
static int mst_stream_compute_config(struct intel_encoder *encoder,
struct intel_crtc_state *pipe_config,
struct drm_connector_state *conn_state)
static int mst_stream_compute_link_for_joined_pipes(struct intel_encoder *encoder,
struct intel_crtc_state *pipe_config,
struct drm_connector_state *conn_state,
int num_joined_pipes)
{
struct intel_display *display = to_intel_display(encoder);
struct intel_atomic_state *state = to_intel_atomic_state(conn_state->state);
struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
struct intel_dp *intel_dp = to_primary_dp(encoder);
struct intel_connector *connector =
to_intel_connector(conn_state->connector);
const struct drm_display_mode *adjusted_mode =
&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 &&
!intel_dp_supports_fec(intel_dp, connector, pipe_config))
return -EINVAL;
if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)
return -EINVAL;
pipe_config->sink_format = INTEL_OUTPUT_FORMAT_RGB;
pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
pipe_config->has_pch_encoder = false;
num_joined_pipes = intel_dp_num_joined_pipes(intel_dp, connector,
adjusted_mode->crtc_hdisplay,
adjusted_mode->crtc_clock);
if (num_joined_pipes > 1)
pipe_config->joiner_pipes = GENMASK(crtc->pipe + num_joined_pipes - 1, crtc->pipe);
joiner_needs_dsc = intel_dp_joiner_needs_dsc(display, num_joined_pipes);
dsc_needed = joiner_needs_dsc || intel_dp->force_dsc_en ||
@ -683,6 +662,8 @@ static int mst_stream_compute_config(struct intel_encoder *encoder,
ret = intel_dp_dsc_compute_config(intel_dp, pipe_config,
conn_state, &limits,
pipe_config->dp_m_n.tu);
if (ret)
return ret;
}
if (ret)
@ -692,6 +673,48 @@ static int mst_stream_compute_config(struct intel_encoder *encoder,
if (ret)
return ret;
return 0;
}
static int mst_stream_compute_config(struct intel_encoder *encoder,
struct intel_crtc_state *pipe_config,
struct drm_connector_state *conn_state)
{
struct intel_display *display = to_intel_display(encoder);
struct intel_atomic_state *state = to_intel_atomic_state(conn_state->state);
struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
struct intel_dp *intel_dp = to_primary_dp(encoder);
struct intel_connector *connector =
to_intel_connector(conn_state->connector);
const struct drm_display_mode *adjusted_mode =
&pipe_config->hw.adjusted_mode;
int num_joined_pipes;
int ret = 0;
if (pipe_config->fec_enable &&
!intel_dp_supports_fec(intel_dp, connector, pipe_config))
return -EINVAL;
if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)
return -EINVAL;
pipe_config->sink_format = INTEL_OUTPUT_FORMAT_RGB;
pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
pipe_config->has_pch_encoder = false;
num_joined_pipes = intel_dp_num_joined_pipes(intel_dp, connector,
adjusted_mode->crtc_hdisplay,
adjusted_mode->crtc_clock);
if (num_joined_pipes > 1)
pipe_config->joiner_pipes = GENMASK(crtc->pipe + num_joined_pipes - 1, crtc->pipe);
ret = mst_stream_compute_link_for_joined_pipes(encoder,
pipe_config,
conn_state,
num_joined_pipes);
if (ret)
return ret;
pipe_config->limited_color_range =
intel_dp_limited_color_range(pipe_config, conn_state);