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Date:   Mon, 18 Oct 2021 16:28:41 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     tomba@...nel.org
Cc:     linux-omap@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, khilman@...libre.com,
        Benoit Parrot <bparrot@...com>,
        Neil Armstrong <narmstrong@...libre.com>
Subject: [PATCH v6 8/9] drm/omap: add plane_atomic_print_state support

From: Benoit Parrot <bparrot@...com>

Now that we added specific item to our subclassed drm_plane_state
we can add omap_plane_atomic_print_state() helper to dump out our own
driver specific plane state.

Signed-off-by: Benoit Parrot <bparrot@...com>
Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
---
 drivers/gpu/drm/omapdrm/omap_plane.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c
index ce5ed45401fb..5001c8354e4f 100644
--- a/drivers/gpu/drm/omapdrm/omap_plane.c
+++ b/drivers/gpu/drm/omapdrm/omap_plane.c
@@ -348,6 +348,21 @@ omap_plane_atomic_duplicate_state(struct drm_plane *plane)
 	return &state->base;
 }
 
+static void omap_plane_atomic_print_state(struct drm_printer *p,
+					  const struct drm_plane_state *state)
+{
+	struct omap_plane_state *omap_state = to_omap_plane_state(state);
+
+	drm_printf(p, "\toverlay=%s\n", omap_state->overlay ?
+					omap_state->overlay->name : "(null)");
+	if (omap_state->overlay) {
+		drm_printf(p, "\t\tidx=%d\n", omap_state->overlay->idx);
+		drm_printf(p, "\t\toverlay_id=%d\n",
+			   omap_state->overlay->id);
+		drm_printf(p, "\t\tcaps=0x%x\n", omap_state->overlay->caps);
+	}
+}
+
 static int omap_plane_atomic_set_property(struct drm_plane *plane,
 					  struct drm_plane_state *state,
 					  struct drm_property *property,
@@ -387,6 +402,7 @@ static const struct drm_plane_funcs omap_plane_funcs = {
 	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 	.atomic_set_property = omap_plane_atomic_set_property,
 	.atomic_get_property = omap_plane_atomic_get_property,
+	.atomic_print_state = omap_plane_atomic_print_state,
 };
 
 static bool omap_plane_supports_yuv(struct drm_plane *plane)
-- 
2.25.1

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