drm/vc4: Use the fbdev_cma helpers
Keep the fbdev_cma pointer around so we can use it on hotplog and close
to ensure the frame buffer console is in a useful state.
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c
index c241c8f..ee3e004 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -21,7 +21,16 @@
#include "drm_fb_cma_helper.h"
#include "vc4_drv.h"
+static void vc4_output_poll_changed(struct drm_device *dev)
+{
+ struct vc4_dev *vc4 = to_vc4_dev(dev);
+
+ if (vc4->fbdev)
+ drm_fbdev_cma_hotplug_event(vc4->fbdev);
+}
+
static const struct drm_mode_config_funcs vc4_mode_funcs = {
+ .output_poll_changed = vc4_output_poll_changed,
.atomic_check = drm_atomic_helper_check,
.atomic_commit = drm_atomic_helper_commit,
.fb_create = drm_fb_cma_create,
@@ -29,6 +38,7 @@
int vc4_kms_load(struct drm_device *dev)
{
+ struct vc4_dev *vc4 = to_vc4_dev(dev);
int ret;
ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
@@ -44,9 +54,11 @@
drm_mode_config_reset(dev);
- drm_fbdev_cma_init(dev, 32,
- dev->mode_config.num_crtc,
- dev->mode_config.num_connector);
+ vc4->fbdev = drm_fbdev_cma_init(dev, 32,
+ dev->mode_config.num_crtc,
+ dev->mode_config.num_connector);
+ if (IS_ERR(vc4->fbdev))
+ vc4->fbdev = NULL;
drm_kms_helper_poll_init(dev);