diff options
| author | Imre Deak <imre.deak@intel.com> | 2026-02-16 10:04:20 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2026-02-17 17:21:36 +0300 |
| commit | f34c6b31d1b50c581da8bec97b86190faa49e7cb (patch) | |
| tree | 134ae681d4e25df3f6eae303e903f257230a2c31 | |
| parent | 076c05a21aa8934c80b7a8210fc2a90df6a3cbd5 (diff) | |
| download | linux-f34c6b31d1b50c581da8bec97b86190faa49e7cb.tar.xz | |
drm/i915/dp_mst: Track min link BPP as x16 fixed-point during mode validation
Track the minimum link BPP as an x16 fixed-point value and, for
clarity, rename the variable storing it to min_link_bpp_x16.
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260216070421.714884-4-imre.deak@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 29713075e413..7ca2e2245fc7 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -1463,10 +1463,10 @@ mst_connector_mode_valid_ctx(struct drm_connector *_connector, struct intel_dp *intel_dp = connector->mst.dp; struct drm_dp_mst_topology_mgr *mgr = &intel_dp->mst.mgr; struct drm_dp_mst_port *port = connector->mst.port; - const int min_bpp = 18; int max_rate, mode_rate, max_lanes, max_link_clock; unsigned long bw_overhead_flags = DRM_DP_BW_OVERHEAD_MST | DRM_DP_BW_OVERHEAD_SSC_REF_CLK; + int min_link_bpp_x16 = fxp_q4_from_int(18); int ret; bool dsc = false; int target_clock = mode->clock; @@ -1498,7 +1498,7 @@ mst_connector_mode_valid_ctx(struct drm_connector *_connector, max_link_clock, max_lanes); mode_rate = intel_dp_link_required(max_link_clock, max_lanes, mode->clock, mode->hdisplay, - fxp_q4_from_int(min_bpp), + min_link_bpp_x16, bw_overhead_flags); /* @@ -1518,7 +1518,7 @@ mst_connector_mode_valid_ctx(struct drm_connector *_connector, return ret; if (mode_rate > max_rate || - drm_dp_calc_pbn_mode(mode->clock, min_bpp << 4) > port->full_pbn) { + drm_dp_calc_pbn_mode(mode->clock, min_link_bpp_x16) > port->full_pbn) { *status = MODE_CLOCK_HIGH; return 0; } |