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drm/sun4i: Implement drm_driver lastclose to restore fbdev console

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commit 2a596fc9d9 upstream.

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.

Fixes: 9026e0d122 ("drm: Add Allwinner A10 Display Engine support")
Tested-by: Olliver Schinagl <oliver@schinagl.nl>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
[net147@gmail.com: Backport to 4.9, minor context change]
Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jonathan Liu
2017-07-10 16:55:04 +10:00
committed by Greg Kroah-Hartman
parent a29aeb834a
commit 0fda166fce
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/sun4i/sun4i_drv.c
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@@ -47,6 +47,13 @@ static void sun4i_drv_disable_vblank(struct drm_device *drm, unsigned int pipe)
sun4i_tcon_enable_vblank(tcon, false);
}
static void sun4i_drv_lastclose(struct drm_device *dev)
{
struct sun4i_drv *drv = dev->dev_private;
drm_fbdev_cma_restore_mode(drv->fbdev);
}
static const struct file_operations sun4i_drv_fops = {
.owner = THIS_MODULE,
.open = drm_open,
@@ -65,6 +72,7 @@ static struct drm_driver sun4i_drv_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_ATOMIC,
/* Generic Operations */
.lastclose = sun4i_drv_lastclose,
.fops = &sun4i_drv_fops,
.name = "sun4i-drm",
.desc = "Allwinner sun4i Display Engine",