[PATCH 7/8] drm/bochs: phase 3: switch to drm_atomic_helper_page_flip

[John Hunter]

From: Zhao Junwang <zhjwpku at gmail.com>

PageFlips now use the atomic helper to work through the atomic
modesetting API.

v2: -Since driver is now fully atomic, we should add DRIVER_ATOMIC
     to .driver_features.

Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Signed-off-by: Zhao Junwang <zhjwpku at gmail.com>
---
 drivers/gpu/drm/bochs/bochs_drv.c |    2 +-
 drivers/gpu/drm/bochs/bochs_kms.c |   22 +---------------------
 2 files changed, 2 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index 98837bd..fc31643 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c
@@ -79,7 +79,7 @@ static const struct file_operations bochs_fops = {
 };
 
 static struct drm_driver bochs_driver = {
-	.driver_features	= DRIVER_GEM | DRIVER_MODESET,
+	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.load			= bochs_load,
 	.unload			= bochs_unload,
 	.set_busid		= drm_pci_set_busid,
diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index f0e93e1..599f367 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -59,32 +59,12 @@ static void bochs_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
 {
 }
 
-static int bochs_crtc_page_flip(struct drm_crtc *crtc,
-				struct drm_framebuffer *fb,
-				struct drm_pending_vblank_event *event,
-				uint32_t page_flip_flags)
-{
-	struct bochs_device *bochs =
-		container_of(crtc, struct bochs_device, crtc);
-	struct drm_framebuffer *old_fb = crtc->primary->fb;
-	unsigned long irqflags;
-
-	crtc->primary->fb = fb;
-	drm_helper_crtc_mode_set_base(crtc, 0, 0, old_fb);
-	if (event) {
-		spin_lock_irqsave(&bochs->dev->event_lock, irqflags);
-		drm_send_vblank_event(bochs->dev, -1, event);
-		spin_unlock_irqrestore(&bochs->dev->event_lock, irqflags);
-	}
-	return 0;
-}
-
 /* These provide the minimum set of functions required to handle a CRTC */
 static const struct drm_crtc_funcs bochs_crtc_funcs = {
 	.gamma_set = bochs_crtc_gamma_set,
 	.set_config = drm_atomic_helper_set_config,
 	.destroy = drm_crtc_cleanup,
-	.page_flip = bochs_crtc_page_flip,
+	.page_flip = drm_atomic_helper_page_flip,
 	.reset = drm_atomic_helper_crtc_reset,
 	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
-- 
1.7.10.4