This is a very crude page_flip implementation for UDL. There are ways
to make it better (make it asynchronous, make it do actual vsynced
flips...) but that's for another patch.
Signed-off-by: Stéphane Marchesin <marcheu@xxxxxxxxxxxx>
---
drivers/gpu/drm/udl/udl_modeset.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
index cddc4fc..7dc3bd8 100644
--- a/drivers/gpu/drm/udl/udl_modeset.c
+++ b/drivers/gpu/drm/udl/udl_modeset.c
@@ -363,6 +363,26 @@ static void udl_crtc_destroy(struct drm_crtc *crtc)
kfree(crtc);
}
+static int udl_crtc_page_flip(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_pending_vblank_event *event,
+ uint32_t page_flip_flags)
+{
+ struct udl_framebuffer *ufb = to_udl_fb(fb);
+ struct drm_device *dev = crtc->dev;
+ unsigned long flags;
+
+ udl_handle_damage(ufb, 0, 0, fb->width, fb->height);
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+ if (event)
+ drm_send_vblank_event(dev, 0, event);
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ crtc->fb = fb;
+
+ return 0;
+}
+
static void udl_crtc_prepare(struct drm_crtc *crtc)
{
}
@@ -384,6 +404,7 @@ static struct drm_crtc_helper_funcs udl_helper_funcs = {
static const struct drm_crtc_funcs udl_crtc_funcs = {
.set_config = drm_crtc_helper_set_config,
.destroy = udl_crtc_destroy,
+ .page_flip = udl_crtc_page_flip,
};
static int udl_crtc_init(struct drm_device *dev)
--
2.0.0.526.g5318336
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