github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-03 03:53:37 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/i915/dp: Factor out compute_min_compressed_bpp_x16()

Browse Source 
Factor out compute_min_compressed_bpp_x16() also used during mode
validation in a follow-up change.

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20251222153547.713360-11-imre.deak@intel.com
This commit is contained in:
Imre Deak 2025-12-22 17:35:37 +02:00
parent 07b34db2a0
commit 28e59c7e24
1 changed files with 18 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/gpu/drm/i915/display/intel_dp.c
View File

@ -2646,6 +2646,23 @@ dsc_throughput_quirk_max_bpp_x16(const struct intel_connector *connector,
return fxp_q4_from_int(12);
}
static int compute_min_compressed_bpp_x16(struct intel_connector *connector,
enum intel_output_format output_format)
{
int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp;
int min_bpp_x16;
dsc_src_min_bpp = intel_dp_dsc_min_src_compressed_bpp();
dsc_sink_min_bpp = intel_dp_dsc_sink_min_compressed_bpp(output_format);
dsc_min_bpp = max(dsc_src_min_bpp, dsc_sink_min_bpp);
min_bpp_x16 = fxp_q4_from_int(dsc_min_bpp);
min_bpp_x16 = align_min_compressed_bpp_x16(connector, min_bpp_x16);
return min_bpp_x16;
}
/*
* Calculate the output link min, max bpp values in limits based on the pipe bpp
* range, crtc_state and dsc mode. Return true on success.
@ -2675,18 +2692,11 @@ intel_dp_compute_config_link_bpp_limits(struct intel_connector *connector,
limits->link.min_bpp_x16 = fxp_q4_from_int(limits->pipe.min_bpp);
} else {
int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp;
int dsc_src_max_bpp, dsc_sink_max_bpp, dsc_max_bpp;
int throughput_max_bpp_x16;
int joiner_max_bpp;
dsc_src_min_bpp = intel_dp_dsc_min_src_compressed_bpp();
dsc_sink_min_bpp = intel_dp_dsc_sink_min_compressed_bpp(crtc_state->output_format);
dsc_min_bpp = max(dsc_src_min_bpp, dsc_sink_min_bpp);
limits->link.min_bpp_x16 = fxp_q4_from_int(dsc_min_bpp);
limits->link.min_bpp_x16 =
align_min_compressed_bpp_x16(connector, limits->link.min_bpp_x16);
compute_min_compressed_bpp_x16(connector, crtc_state->output_format);
dsc_src_max_bpp = dsc_src_max_compressed_bpp(intel_dp);
joiner_max_bpp =