Re: [linux-sunxi] [PATCH v3] drm/sun4i: Implement drm_driver lastclose to restore fbdev console

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Hey Jonathan,

since I reported this to you on IRC, it's only fair that you can have my:

Tested-by: Olliver Schinagl <oliver@xxxxxxxxxxx>

For those interessted, I've tested it on an Olimex OLinuXino Lime2 with their 4.3 LCD.

Olliver

On 10-07-17 08:55, Jonathan Liu wrote:
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: 9026e0d122ac ("drm: Add Allwinner A10 Display Engine support")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Jonathan Liu <net147@xxxxxxxxx>
Reviewed-by: Chen-Yu Tsai <wens@xxxxxxxx>
---
Changes for v3:
 - Add 'Fixes:' tag
 - Add CC to stable
 - Add 'Reviewed-by: Chen-Yu Tsai <wens@xxxxxxxx>'

Changes for v2:
 - Rename sun4i_drm_lastclose to sun4i_drv_lastclose

 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..a45a627283a1 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_drv_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_drv_lastclose,
 	.fops			= &sun4i_drv_fops,
 	.name			= "sun4i-drm",
 	.desc			= "Allwinner sun4i Display Engine",

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