Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/i915/dp: Use a mode's crtc_clock vs. clock during state computation
The encoder state computation should use the
drm_display_mode::crtc_clock member, instead of the clock member, the
former one possibly having a necessary adjustment wrt. to the latter
due to driver specific constraints. In practice the two values should
not differ at spots changed in this patch, since only MSO and 3D modes
would make them different, neither MSO or 3D relevant here, but still
use the expected crtc_clock version for consistency.
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20251215192357.172201-6-imre.deak@intel.com
+3
-2
+3
-2
drivers/gpu/drm/i915/display/intel_dp.c
+3
-2
drivers/gpu/drm/i915/display/intel_dp.c
···
2051
2051
continue;
2052
2052
} else {
2053
2053
if (!is_bw_sufficient_for_dsc_config(dsc_bpp_x16, link_rate,
2054
-
lane_count, adjusted_mode->clock,
2054
+
lane_count,
2055
+
adjusted_mode->crtc_clock,
2055
2056
pipe_config->output_format,
2056
2057
timeslots))
2057
2058
continue;
···
2213
2212
int bpp_x16;
2214
2213
int ret;
2215
2214
2216
-
dsc_joiner_max_bpp = get_max_compressed_bpp_with_joiner(display, adjusted_mode->clock,
2215
+
dsc_joiner_max_bpp = get_max_compressed_bpp_with_joiner(display, adjusted_mode->crtc_clock,
2217
2216
adjusted_mode->hdisplay,
2218
2217
num_joined_pipes);
2219
2218
max_bpp_x16 = min(fxp_q4_from_int(dsc_joiner_max_bpp), limits->link.max_bpp_x16);