1 files changed, 12 insertions, 28 deletions

diff --git a/drivers/gpu/host1x/syncpt.c b/drivers/gpu/host1x/syncpt.c
index d198a10848c6..f87a8705f518 100644
--- a/drivers/gpu/host1x/syncpt.c
+++ b/drivers/gpu/host1x/syncpt.c
@@ -137,12 +137,21 @@ void host1x_syncpt_restore(struct host1x *host)
 	struct host1x_syncpt *sp_base = host->syncpt;
 	unsigned int i;
 
-	for (i = 0; i < host1x_syncpt_nb_pts(host); i++)
+	for (i = 0; i < host1x_syncpt_nb_pts(host); i++) {
+		/*
+		 * Unassign syncpt from channels for purposes of Tegra186
+		 * syncpoint protection. This prevents any channel from
+		 * accessing it until it is reassigned.
+		 */
+		host1x_hw_syncpt_assign_to_channel(host, sp_base + i, NULL);
 		host1x_hw_syncpt_restore(host, sp_base + i);
+	}
 
 	for (i = 0; i < host1x_syncpt_nb_bases(host); i++)
 		host1x_hw_syncpt_restore_wait_base(host, sp_base + i);
 
+	host1x_hw_syncpt_enable_protection(host);
+
 	wmb();
 }
 
@@ -225,27 +234,12 @@ int host1x_syncpt_wait(struct host1x_syncpt *sp, u32 thresh, long timeout,
 	void *ref;
 	struct host1x_waitlist *waiter;
 	int err = 0, check_count = 0;
-	u32 val;
 
 	if (value)
-		*value = 0;
-
-	/* first check cache */
-	if (host1x_syncpt_is_expired(sp, thresh)) {
-		if (value)
-			*value = host1x_syncpt_load(sp);
+		*value = host1x_syncpt_load(sp);
 
+	if (host1x_syncpt_is_expired(sp, thresh))
 		return 0;
-	}
-
-	/* try to read from register */
-	val = host1x_hw_syncpt_load(sp->host, sp);
-	if (host1x_syncpt_is_expired(sp, thresh)) {
-		if (value)
-			*value = val;
-
-		goto done;
-	}
 
 	if (!timeout) {
 		err = -EAGAIN;
@@ -350,13 +344,6 @@ int host1x_syncpt_init(struct host1x *host)
 	for (i = 0; i < host->info->nb_pts; i++) {
 		syncpt[i].id = i;
 		syncpt[i].host = host;
-
-		/*
-		 * Unassign syncpt from channels for purposes of Tegra186
-		 * syncpoint protection. This prevents any channel from
-		 * accessing it until it is reassigned.
-		 */
-		host1x_hw_syncpt_assign_to_channel(host, &syncpt[i], NULL);
 	}
 
 	for (i = 0; i < host->info->nb_bases; i++)
@@ -366,9 +353,6 @@ int host1x_syncpt_init(struct host1x *host)
 	host->syncpt = syncpt;
 	host->bases = bases;
 
-	host1x_syncpt_restore(host);
-	host1x_hw_syncpt_enable_protection(host);
-
 	/* Allocate sync point to use for clearing waits for expired fences */
 	host->nop_sp = host1x_syncpt_alloc(host, 0, "reserved-nop");
 	if (!host->nop_sp)