From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Thu, 5 Mar 2015 16:49:37 +0000 (+0200)
Subject: drm: omapdrm: Drop manual framebuffer pin handling
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~17^2~16^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9d29c1f2d5510fc7cb95cacc27016fab279fb881;p=pandora-kernel.git

drm: omapdrm: Drop manual framebuffer pin handling

Since the removal of omap_plane_mode_set(), framebuffers are now pinned
exclusively through the plane .prepare_fb() and .cleanup_fb() operations
as the remaining callers of omap_plane_setup() don't modify the
framebuffer. Remove the manual pin/unpin infrastructure.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---

diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c
index a87ec26a883b..646563e47562 100644
--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
+++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
@@ -52,9 +52,6 @@ struct omap_crtc {
 	struct omap_drm_irq vblank_irq;
 	struct omap_drm_irq error_irq;
 
-	/* list of framebuffers to unpin */
-	struct list_head pending_unpins;
-
 	/* pending event */
 	struct drm_pending_vblank_event *event;
 	wait_queue_head_t flip_wait;
@@ -64,11 +61,6 @@ struct omap_crtc {
 	bool ignore_digit_sync_lost;
 };
 
-struct omap_framebuffer_unpin {
-	struct list_head list;
-	struct drm_framebuffer *fb;
-};
-
 /* -----------------------------------------------------------------------------
  * Helper Functions
  */
@@ -365,7 +357,6 @@ static void omap_crtc_vblank_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
 int omap_crtc_flush(struct drm_crtc *crtc)
 {
 	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
-	struct omap_framebuffer_unpin *fb, *next;
 
 	DBG("%s: GO", omap_crtc->name);
 
@@ -385,29 +376,6 @@ int omap_crtc_flush(struct drm_crtc *crtc)
 
 	dispc_runtime_put();
 
-	/* Unpin and unreference pending framebuffers. */
-	list_for_each_entry_safe(fb, next, &omap_crtc->pending_unpins, list) {
-		omap_framebuffer_unpin(fb->fb);
-		drm_framebuffer_unreference(fb->fb);
-		list_del(&fb->list);
-		kfree(fb);
-	}
-
-	return 0;
-}
-
-int omap_crtc_queue_unpin(struct drm_crtc *crtc, struct drm_framebuffer *fb)
-{
-	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
-	struct omap_framebuffer_unpin *unpin;
-
-	unpin = kzalloc(sizeof(*unpin), GFP_KERNEL);
-	if (!unpin)
-		return -ENOMEM;
-
-	unpin->fb = fb;
-	list_add_tail(&unpin->list, &omap_crtc->pending_unpins);
-
 	return 0;
 }
 
@@ -643,9 +611,6 @@ struct drm_crtc *omap_crtc_init(struct drm_device *dev,
 	crtc = &omap_crtc->base;
 
 	init_waitqueue_head(&omap_crtc->flip_wait);
-
-	INIT_LIST_HEAD(&omap_crtc->pending_unpins);
-
 	init_completion(&omap_crtc->completion);
 
 	omap_crtc->channel = channel;
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