drm/colorop: Add atomic state print for drm_colorop

Print atomic state for drm_colorop in debugfs

Reviewed-by: Simon Ser <[e-mail]>
Signed-off-by: Alex Hung <[e-mail]>
Signed-off-by: Harry Wentland <[e-mail]>
Reviewed-by: Daniel Stone <[e-mail]>
Reviewed-by: Melissa Wen <[e-mail]>
Reviewed-by: Sebastian Wick <[e-mail]>
Signed-off-by: Simon Ser <[e-mail]>
Link: https://patch.msgid.link/[e-mail]

drivers/gpu/drm/drm_atomic.c

···
 	return 0;
 }
 
+static void drm_atomic_colorop_print_state(struct drm_printer *p,
+					   const struct drm_colorop_state *state)
+{
+	struct drm_colorop *colorop = state->colorop;
+
+	drm_printf(p, "colorop[%u]:\n", colorop->base.id);
+	drm_printf(p, "\ttype=%s\n", drm_get_colorop_type_name(colorop->type));
+	drm_printf(p, "\tbypass=%u\n", state->bypass);
+
+	switch (colorop->type) {
+	case DRM_COLOROP_1D_CURVE:
+		drm_printf(p, "\tcurve_1d_type=%s\n",
+			   drm_get_colorop_curve_1d_type_name(state->curve_1d_type));
+		break;
+	default:
+		break;
+	}
+
+	drm_printf(p, "\tnext=%d\n", colorop->next ? colorop->next->base.id : 0);
+}
+
 static void drm_atomic_plane_print_state(struct drm_printer *p,
 		const struct drm_plane_state *state)
 {
···
 	drm_printf(p, "\tcolor-range=%s\n",
 		   drm_get_color_range_name(state->color_range));
 	drm_printf(p, "\tcolor_mgmt_changed=%d\n", state->color_mgmt_changed);
-
+	drm_printf(p, "\tcolor-pipeline=%d\n",
+		   state->color_pipeline ? state->color_pipeline->base.id : 0);
 	if (plane->funcs->atomic_print_state)
 		plane->funcs->atomic_print_state(p, state);
 }
···
 			     bool take_locks)
 {
 	struct drm_mode_config *config = &dev->mode_config;
+	struct drm_colorop *colorop;
 	struct drm_plane *plane;
 	struct drm_crtc *crtc;
 	struct drm_connector *connector;
···
 
 	if (!drm_drv_uses_atomic_modeset(dev))
 		return;
+
+	list_for_each_entry(colorop, &config->colorop_list, head) {
+		if (take_locks)
+			drm_modeset_lock(&colorop->plane->mutex, NULL);
+		drm_atomic_colorop_print_state(p, colorop->state);
+		if (take_locks)
+			drm_modeset_unlock(&colorop->plane->mutex);
+	}
 
 	list_for_each_entry(plane, &config->plane_list, head) {
 		if (take_locks)