If fbdev uses a shadow framebuffer, call the damage handler. Otherwise
the update might not make it to the screen.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Fixes: 222ec45f4c69 ("drm/fb_helper: Support framebuffers in I/O memory")
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Maxime Ripard <mripard@xxxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: Gerd Hoffmann <kraxel@xxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
---
drivers/gpu/drm/drm_fb_helper.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 25edf670867c..ee1a19e22df2 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -2189,6 +2189,9 @@ static ssize_t drm_fbdev_fb_write(struct fb_info *info, const char __user *buf,
if (ret > 0)
*ppos += ret;
+ if (ret > 0)
+ drm_fb_helper_dirty(info, 0, 0, info->var.xres, info->var.yres);
+
return ret ? ret : err;
}
--
2.29.2
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