From b558053fcf05e85d3924d4d9ad15df57c588730f Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Mon, 27 May 2024 15:35:49 +0200
Subject: [PATCH] drm: renesas: rcar-du: Add drm_panic support for non-vsp
Add support for the drm_panic module for DU variants not using the
VSP-compositor, to display a message on the screen when a kernel panic
occurs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Acked-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Link: https://patchwork.freedesktop.org/patch/msgid/b633568d2e3f405b21debdd60854fe39780254d6.1716816897.git.geert+renesas@glider.be
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
index e445fac8e0b46..c546ab0805d65 100644
--- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
+++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
@@ -680,6 +680,12 @@ static const struct drm_plane_helper_funcs rcar_du_plane_helper_funcs = {
.atomic_update = rcar_du_plane_atomic_update,
};
+static const struct drm_plane_helper_funcs rcar_du_primary_plane_helper_funcs = {
+ .atomic_check = rcar_du_plane_atomic_check,
+ .atomic_update = rcar_du_plane_atomic_update,
+ .get_scanout_buffer = drm_fb_dma_get_scanout_buffer,
+};
+
static struct drm_plane_state *
rcar_du_plane_atomic_duplicate_state(struct drm_plane *plane)
{
@@ -812,8 +818,12 @@ int rcar_du_planes_init(struct rcar_du_group *rgrp)
if (ret < 0)
return ret;
- drm_plane_helper_add(&plane->plane,
- &rcar_du_plane_helper_funcs);
+ if (type == DRM_PLANE_TYPE_PRIMARY)
+ drm_plane_helper_add(&plane->plane,
+ &rcar_du_primary_plane_helper_funcs);
+ else
+ drm_plane_helper_add(&plane->plane,
+ &rcar_du_plane_helper_funcs);
drm_plane_create_alpha_property(&plane->plane);
--
GitLab