github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-28 09:04:39 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/i915/dsi: Move initialization of DSI DSC streams-per-pipe to fill_dsc()

Browse Source 
Move the initialization of the DSI DSC streams-per-pipe value to
fill_dsc() next to where the corresponding (per-line) slice_count value
is initialized. This allows converting the initialization to use the
detailed slice configuration state in follow-up changes.

Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260114162232.92731-4-imre.deak@intel.com
This commit is contained in:
Imre Deak 2026-01-14 18:22:20 +02:00
parent 2b8f5b5cb2
commit 611cadd5c0
2 changed files with 5 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/i915/display/icl_dsi.c
View File

@ -1624,12 +1624,6 @@ static int gen11_dsi_dsc_compute_config(struct intel_encoder *encoder,
if (crtc_state->pipe_bpp < 8 * 3)
return -EINVAL;
/* FIXME: split only when necessary */
if (crtc_state->dsc.slice_count > 1)
crtc_state->dsc.slice_config.streams_per_pipe = 2;
else
crtc_state->dsc.slice_config.streams_per_pipe = 1;
/* FIXME: initialize from VBT */
vdsc_cfg->rc_model_size = DSC_RC_MODEL_SIZE_CONST;

5
drivers/gpu/drm/i915/display/intel_bios.c
View File

@ -3575,10 +3575,14 @@ static void fill_dsc(struct intel_crtc_state *crtc_state,
* throughput etc. into account.
*
* Also, per spec DSI supports 1, 2, 3 or 4 horizontal slices.
*
* FIXME: split only when necessary
*/
if (dsc->slices_per_line & BIT(2)) {
crtc_state->dsc.slice_config.streams_per_pipe = 2;
crtc_state->dsc.slice_count = 4;
} else if (dsc->slices_per_line & BIT(1)) {
crtc_state->dsc.slice_config.streams_per_pipe = 2;
crtc_state->dsc.slice_count = 2;
} else {
/* FIXME */
@ -3586,6 +3590,7 @@ static void fill_dsc(struct intel_crtc_state *crtc_state,
drm_dbg_kms(display->drm,
"VBT: Unsupported DSC slice count for DSI\n");
crtc_state->dsc.slice_config.streams_per_pipe = 1;
crtc_state->dsc.slice_count = 1;
}