github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-27 16:44:58 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/i915/vrr: Readout framestart_delay earlier

Browse Source 
In order to pretend that ICL/TGL VRR hardware has a similar guardband
as on ADL+ we'll need access to framestart_delay already during
intel_vrr_get_config(). Hoist the framestart_delay to an earlier point
to make that possible.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250917203446.14374-3-ville.syrjala@linux.intel.com
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
This commit is contained in:
Ville Syrjälä 2025-09-17 23:34:43 +03:00
parent a0f8dd08a5
commit 6559ca4a42
1 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/gpu/drm/i915/display/intel_display.c
View File

@ -3891,6 +3891,15 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
intel_joiner_get_config(pipe_config);
intel_dsc_get_config(pipe_config);
if (!transcoder_is_dsi(pipe_config->cpu_transcoder)) {
tmp = intel_de_read(display, CHICKEN_TRANS(display, pipe_config->cpu_transcoder));
pipe_config->framestart_delay = REG_FIELD_GET(HSW_FRAME_START_DELAY_MASK, tmp) + 1;
} else {
/* no idea if this is correct */
pipe_config->framestart_delay = 1;
}
if (!transcoder_is_dsi(pipe_config->cpu_transcoder) ||
DISPLAY_VER(display) >= 11)
intel_get_transcoder_timings(crtc, pipe_config);
@ -3942,15 +3951,6 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
pipe_config->pixel_multiplier = 1;
}
if (!transcoder_is_dsi(pipe_config->cpu_transcoder)) {
tmp = intel_de_read(display, CHICKEN_TRANS(display, pipe_config->cpu_transcoder));
pipe_config->framestart_delay = REG_FIELD_GET(HSW_FRAME_START_DELAY_MASK, tmp) + 1;
} else {
/* no idea if this is correct */
pipe_config->framestart_delay = 1;
}
out:
intel_display_power_put_all_in_set(display, &crtc->hw_readout_power_domains);