drm/connector: print max_requested_bpc in state debugfs

commit 7d386975f6a495902e679a3a250a7456d7e54765 upstream.

This is useful to understand the bpc defaults and
support of a driver.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
Reviewed-By: Joshua Ashton <joshua@froggi.es>
Link: https://patchwork.freedesktop.org/patch/msgid/20230113162428.33874-3-harry.wentland@amd.com
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 14aeaf736321003c979c6dbf73e0940c4cc6d1d3..2fc0f221fb4e2b07643b7a06573ec395f3df3aaf 100644 (file)
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -1006,6 +1006,7 @@ static void drm_atomic_connector_print_state(struct drm_printer *p,
        drm_printf(p, "connector[%u]: %s\n", connector->base.id, connector->name);
        drm_printf(p, "\tcrtc=%s\n", state->crtc ? state->crtc->name : "(null)");
        drm_printf(p, "\tself_refresh_aware=%d\n", state->self_refresh_aware);
+       drm_printf(p, "\tmax_requested_bpc=%d\n", state->max_requested_bpc);
 
        if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
                if (state->writeback_job && state->writeback_job->fb)