From: Ville Syrjälä Date: Mon, 20 Oct 2025 18:50:37 +0000 (+0300) Subject: drm/i915/vrr: Update the intel_vrr_extra_vblank_delay() comment X-Git-Tag: v6.19-rc1~157^2~17^2~66 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=be5fc552b3dd0fe8fbe6231ed754be207b5df890;p=thirdparty%2Fkernel%2Flinux.git drm/i915/vrr: Update the intel_vrr_extra_vblank_delay() comment The coment in intel_vrr_extra_vblank_delay() is a bit outdated now that we generally got rid of the "vblank delay" stuff. Update the comment to better describe the current state of things. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20251020185038.4272-22-ville.syrjala@linux.intel.com Reviewed-by: Ankit Nautiyal --- diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c index 8875e5fe86aa1..c28491b9002a1 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -87,10 +87,8 @@ static int intel_vrr_extra_vblank_delay(struct intel_display *display) /* * On ICL/TGL VRR hardware inserts one extra scanline * just after vactive, which pushes the vmin decision - * boundary ahead accordingly. We'll include the extra - * scanline in our vblank delay estimates to make sure - * that we never underestimate how long we have until - * the delayed vblank has passed. + * boundary ahead accordingly, and thus reduces the + * max guardband length by one scanline. */ return DISPLAY_VER(display) < 13 ? 1 : 0; }