Add support for the drm_panic module, which displays a pretty user
friendly message on the screen when a Linux kernel panic occurs.
Signed-off-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
---
Tested on an AM625 BeaglePlay board by triggering a panic using the
`echo c > /proc/sysrq-trigger` command.
drivers/gpu/drm/tidss/tidss_plane.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/tidss/tidss_plane.c b/drivers/gpu/drm/tidss/tidss_plane.c
index 68fed531f6a7..a5d86822c9e3 100644
--- a/drivers/gpu/drm/tidss/tidss_plane.c
+++ b/drivers/gpu/drm/tidss/tidss_plane.c
@@ -8,6 +8,7 @@
#include <drm/drm_atomic_helper.h>
#include <drm/drm_blend.h>
#include <drm/drm_crtc.h>
+#include <drm/drm_fb_dma_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_atomic_helper.h>
@@ -166,6 +167,14 @@ static const struct drm_plane_helper_funcs tidss_plane_helper_funcs = {
.atomic_disable = tidss_plane_atomic_disable,
};
+static const struct drm_plane_helper_funcs tidss_primary_plane_helper_funcs = {
+ .atomic_check = tidss_plane_atomic_check,
+ .atomic_update = tidss_plane_atomic_update,
+ .atomic_enable = tidss_plane_atomic_enable,
+ .atomic_disable = tidss_plane_atomic_disable,
+ .get_scanout_buffer = drm_fb_dma_get_scanout_buffer,
+};
+
static const struct drm_plane_funcs tidss_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
@@ -211,7 +220,10 @@ struct tidss_plane *tidss_plane_create(struct tidss_device *tidss,
if (ret < 0)
goto err;
- drm_plane_helper_add(&tplane->plane, &tidss_plane_helper_funcs);
+ if (type == DRM_PLANE_TYPE_PRIMARY)
+ drm_plane_helper_add(&tplane->plane, &tidss_primary_plane_helper_funcs);
+ else
+ drm_plane_helper_add(&tplane->plane, &tidss_plane_helper_funcs);
drm_plane_create_zpos_property(&tplane->plane, tidss->num_planes, 0,
num_planes - 1);
--
2.45.1
