summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/i915/display/intel_dp_mst.c
diff options
context:
space:
mode:
authorDavid Francis <David.Francis@amd.com>2019-08-21 17:33:26 +0300
committerAlex Deucher <alexander.deucher@amd.com>2020-01-10 02:07:46 +0300
commitdc48529fb14ee8450705c00d91f4dcc155e1c2cb (patch)
tree75da55ea5145d34d4e7a0e897a8226921931a8ff /drivers/gpu/drm/i915/display/intel_dp_mst.c
parent0f899fd466b693a129b16994c1b2b4db2fcde4a4 (diff)
downloadlinux-dc48529fb14ee8450705c00d91f4dcc155e1c2cb.tar.xz
drm/dp_mst: Add PBN calculation for DSC modes
With DSC, bpp can be fractional in multiples of 1/16. Change drm_dp_calc_pbn_mode to reflect this, adding a new parameter bool dsc. When this parameter is true, treat the bpp parameter as having units not of bits per pixel, but 1/16 of a bit per pixel v2: Don't add separate function for this v3: In the equation divide bpp by 16 as it is expected not to leave any remainder v4: Added DSC test parameters for selftest Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: David Francis <David.Francis@amd.com> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_mst.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 03d1cba0b696..92be17711287 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -61,7 +61,8 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder,
crtc_state->pipe_bpp = bpp;
crtc_state->pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock,
- crtc_state->pipe_bpp);
+ crtc_state->pipe_bpp,
+ false);
slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp->mst_mgr,
port, crtc_state->pbn);