[linux-sunxi] [PATCH] drm/sun4i: Implement drm_driver lastclose to restore fbdev console

[Jonathan Liu]

The drm_driver lastclose callback is called when the last userspace
DRM client has closed. Call drm_fbdev_cma_restore_mode to restore
the fbdev console otherwise the fbdev console will stop working.

Signed-off-by: Jonathan Liu <***@gmail.com>
---
drivers/gpu/drm/sun4i/sun4i_drv.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index abc7d8fe06b4..c434540d409c 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -25,12 +25,20 @@
#include "sun4i_framebuffer.h"
#include "sun4i_tcon.h"

+static void sun4i_drm_lastclose(struct drm_device *dev)
+{
+ struct sun4i_drv *drv = dev->dev_private;
+
+ drm_fbdev_cma_restore_mode(drv->fbdev);
+}
+
DEFINE_DRM_GEM_CMA_FOPS(sun4i_drv_fops);

static struct drm_driver sun4i_drv_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_ATOMIC,

/* Generic Operations */
+ .lastclose = sun4i_drm_lastclose,
.fops = &sun4i_drv_fops,
.name = "sun4i-drm",
.desc = "Allwinner sun4i Display Engine",