Add support for the drm_panic module, which displays a user-friendly
message to the screen when a kernel panic occurs.
v7:
* use drm_panic_gem_get_scanout_buffer() helper
v8:
* Replace get_scanout_buffer() logic with drm_panic_set_buffer()
v9:
* Revert to using get_scanout_buffer() (Sima)
* move get_scanout_buffer() to plane helper functions
Signed-off-by: Jocelyn Falempe <jfalempe@xxxxxxxxxx>
---
drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c
index dade8b59feae..3e21d2a1a124 100644
--- a/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c
@@ -772,6 +772,12 @@ static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = {
.atomic_disable = ipu_plane_atomic_disable,
.atomic_update = ipu_plane_atomic_update,
};
+static const struct drm_plane_helper_funcs ipu_primary_plane_helper_funcs = {
+ .atomic_check = ipu_plane_atomic_check,
+ .atomic_disable = ipu_plane_atomic_disable,
+ .atomic_update = ipu_plane_atomic_update,
+ .get_scanout_buffer = drm_panic_gem_get_scanout_buffer,
+};
bool ipu_plane_atomic_update_pending(struct drm_plane *plane)
{
@@ -916,7 +922,10 @@ struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
ipu_plane->dma = dma;
ipu_plane->dp_flow = dp;
- drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs);
+ if (type == DRM_PLANE_TYPE_PRIMARY)
+ drm_plane_helper_add(&ipu_plane->base, &ipu_primary_plane_helper_funcs);
+ else
+ drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs);
if (dp == IPU_DP_FLOW_SYNC_BG || dp == IPU_DP_FLOW_SYNC_FG)
ret = drm_plane_create_zpos_property(&ipu_plane->base, zpos, 0,
--
2.44.0
