Merge remote branch 'origin' into secretlab/next-devicetree

Merging in current state of Linus' tree to deal with merge conflicts and
build failures in vio.c after merge.

Conflicts:
	drivers/i2c/busses/i2c-cpm.c
	drivers/i2c/busses/i2c-mpc.c
	drivers/net/gianfar.c

Also fixed up one line in arch/powerpc/kernel/vio.c to use the
correct node pointer.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

2 files changed, 41 insertions, 45 deletions

diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c
index a73ee12aad81..fece5be58715 100644
--- a/drivers/mtd/lpddr/lpddr_cmds.c
+++ b/drivers/mtd/lpddr/lpddr_cmds.c
@@ -107,8 +107,7 @@ struct mtd_info *lpddr_cmdset(struct map_info *map)
 			/* those should be reset too since
 			   they create memory references. */
 			init_waitqueue_head(&chip->wq);
-			spin_lock_init(&chip->_spinlock);
-			chip->mutex = &chip->_spinlock;
+			mutex_init(&chip->mutex);
 			chip++;
 		}
 	}
@@ -144,7 +143,7 @@ static int wait_for_ready(struct map_info *map, struct flchip *chip,
 		}
 
 		/* OK Still waiting. Drop the lock, wait a while and retry. */
-		spin_unlock(chip->mutex);
+		mutex_unlock(&chip->mutex);
 		if (sleep_time >= 1000000/HZ) {
 			/*
 			 * Half of the normal delay still remaining
@@ -159,17 +158,17 @@ static int wait_for_ready(struct map_info *map, struct flchip *chip,
 			cond_resched();
 			timeo--;
 		}
-		spin_lock(chip->mutex);
+		mutex_lock(&chip->mutex);
 
 		while (chip->state != chip_state) {
 			/* Someone's suspended the operation: sleep */
 			DECLARE_WAITQUEUE(wait, current);
 			set_current_state(TASK_UNINTERRUPTIBLE);
 			add_wait_queue(&chip->wq, &wait);
-			spin_unlock(chip->mutex);
+			mutex_unlock(&chip->mutex);
 			schedule();
 			remove_wait_queue(&chip->wq, &wait);
-			spin_lock(chip->mutex);
+			mutex_lock(&chip->mutex);
 		}
 		if (chip->erase_suspended || chip->write_suspended)  {
 			/* Suspend has occured while sleep: reset timeout */
@@ -230,20 +229,20 @@ static int get_chip(struct map_info *map, struct flchip *chip, int mode)
 			 * it'll happily send us to sleep.  In any case, when
 			 * get_chip returns success we're clear to go ahead.
 			 */
-			ret = spin_trylock(contender->mutex);
+			ret = mutex_trylock(&contender->mutex);
 			spin_unlock(&shared->lock);
 			if (!ret)
 				goto retry;
-			spin_unlock(chip->mutex);
+			mutex_unlock(&chip->mutex);
 			ret = chip_ready(map, contender, mode);
-			spin_lock(chip->mutex);
+			mutex_lock(&chip->mutex);
 
 			if (ret == -EAGAIN) {
-				spin_unlock(contender->mutex);
+				mutex_unlock(&contender->mutex);
 				goto retry;
 			}
 			if (ret) {
-				spin_unlock(contender->mutex);
+				mutex_unlock(&contender->mutex);
 				return ret;
 			}
 			spin_lock(&shared->lock);
@@ -252,10 +251,10 @@ static int get_chip(struct map_info *map, struct flchip *chip, int mode)
 			 * state. Put contender and retry. */
 			if (chip->state == FL_SYNCING) {
 				put_chip(map, contender);
-				spin_unlock(contender->mutex);
+				mutex_unlock(&contender->mutex);
 				goto retry;
 			}
-			spin_unlock(contender->mutex);
+			mutex_unlock(&contender->mutex);
 		}
 
 		/* Check if we have suspended erase on this chip.
@@ -265,10 +264,10 @@ static int get_chip(struct map_info *map, struct flchip *chip, int mode)
 			spin_unlock(&shared->lock);
 			set_current_state(TASK_UNINTERRUPTIBLE);
 			add_wait_queue(&chip->wq, &wait);
-			spin_unlock(chip->mutex);
+			mutex_unlock(&chip->mutex);
 			schedule();
 			remove_wait_queue(&chip->wq, &wait);
-			spin_lock(chip->mutex);
+			mutex_lock(&chip->mutex);
 			goto retry;
 		}
 
@@ -337,10 +336,10 @@ static int chip_ready(struct map_info *map, struct flchip *chip, int mode)
 sleep:
 		set_current_state(TASK_UNINTERRUPTIBLE);
 		add_wait_queue(&chip->wq, &wait);
-		spin_unlock(chip->mutex);
+		mutex_unlock(&chip->mutex);
 		schedule();
 		remove_wait_queue(&chip->wq, &wait);
-		spin_lock(chip->mutex);
+		mutex_lock(&chip->mutex);
 		return -EAGAIN;
 	}
 }
@@ -356,12 +355,12 @@ static void put_chip(struct map_info *map, struct flchip *chip)
 			if (shared->writing && shared->writing != chip) {
 				/* give back the ownership */
 				struct flchip *loaner = shared->writing;
-				spin_lock(loaner->mutex);
+				mutex_lock(&loaner->mutex);
 				spin_unlock(&shared->lock);
-				spin_unlock(chip->mutex);
+				mutex_unlock(&chip->mutex);
 				put_chip(map, loaner);
-				spin_lock(chip->mutex);
-				spin_unlock(loaner->mutex);
+				mutex_lock(&chip->mutex);
+				mutex_unlock(&loaner->mutex);
 				wake_up(&chip->wq);
 				return;
 			}
@@ -414,10 +413,10 @@ int do_write_buffer(struct map_info *map, struct flchip *chip,
 
 	wbufsize = 1 << lpddr->qinfo->BufSizeShift;
 
-	spin_lock(chip->mutex);
+	mutex_lock(&chip->mutex);
 	ret = get_chip(map, chip, FL_WRITING);
 	if (ret) {
-		spin_unlock(chip->mutex);
+		mutex_unlock(&chip->mutex);
 		return ret;
 	}
 	/* Figure out the number of words to write */
@@ -478,7 +477,7 @@ int do_write_buffer(struct map_info *map, struct flchip *chip,
 	}
 
  out:	put_chip(map, chip);
-	spin_unlock(chip->mutex);
+	mutex_unlock(&chip->mutex);
 	return ret;
 }
 
@@ -490,10 +489,10 @@ int do_erase_oneblock(struct mtd_info *mtd, loff_t adr)
 	struct flchip *chip = &lpddr->chips[chipnum];
 	int ret;
 
-	spin_lock(chip->mutex);
+	mutex_lock(&chip->mutex);
 	ret = get_chip(map, chip, FL_ERASING);
 	if (ret) {
-		spin_unlock(chip->mutex);
+		mutex_unlock(&chip->mutex);
 		return ret;
 	}
 	send_pfow_command(map, LPDDR_BLOCK_ERASE, adr, 0, NULL);
@@ -505,7 +504,7 @@ int do_erase_oneblock(struct mtd_info *mtd, loff_t adr)
 		goto out;
 	}
  out:	put_chip(map, chip);
-	spin_unlock(chip->mutex);
+	mutex_unlock(&chip->mutex);
 	return ret;
 }
 
@@ -518,10 +517,10 @@ static int lpddr_read(struct mtd_info *mtd, loff_t adr, size_t len,
 	struct flchip *chip = &lpddr->chips[chipnum];
 	int ret = 0;
 
-	spin_lock(chip->mutex);
+	mutex_lock(&chip->mutex);
 	ret = get_chip(map, chip, FL_READY);
 	if (ret) {
-		spin_unlock(chip->mutex);
+		mutex_unlock(&chip->mutex);
 		return ret;
 	}
 
@@ -529,7 +528,7 @@ static int lpddr_read(struct mtd_info *mtd, loff_t adr, size_t len,
 	*retlen = len;
 
 	put_chip(map, chip);
-	spin_unlock(chip->mutex);
+	mutex_unlock(&chip->mutex);
 	return ret;
 }
 
@@ -569,9 +568,9 @@ static int lpddr_point(struct mtd_info *mtd, loff_t adr, size_t len,
 		else
 			thislen = len;
 		/* get the chip */
-		spin_lock(chip->mutex);
+		mutex_lock(&chip->mutex);
 		ret = get_chip(map, chip, FL_POINT);
-		spin_unlock(chip->mutex);
+		mutex_unlock(&chip->mutex);
 		if (ret)
 			break;
 
@@ -611,7 +610,7 @@ static void lpddr_unpoint (struct mtd_info *mtd, loff_t adr, size_t len)
 		else
 			thislen = len;
 
-		spin_lock(chip->mutex);
+		mutex_lock(&chip->mutex);
 		if (chip->state == FL_POINT) {
 			chip->ref_point_counter--;
 			if (chip->ref_point_counter == 0)
@@ -621,7 +620,7 @@ static void lpddr_unpoint (struct mtd_info *mtd, loff_t adr, size_t len)
 					"pointed region\n", map->name);
 
 		put_chip(map, chip);
-		spin_unlock(chip->mutex);
+		mutex_unlock(&chip->mutex);
 
 		len -= thislen;
 		ofs = 0;
@@ -727,10 +726,10 @@ int do_xxlock(struct mtd_info *mtd, loff_t adr, uint32_t len, int thunk)
 	int chipnum = adr >> lpddr->chipshift;
 	struct flchip *chip = &lpddr->chips[chipnum];
 
-	spin_lock(chip->mutex);
+	mutex_lock(&chip->mutex);
 	ret = get_chip(map, chip, FL_LOCKING);
 	if (ret) {
-		spin_unlock(chip->mutex);
+		mutex_unlock(&chip->mutex);
 		return ret;
 	}
 
@@ -750,7 +749,7 @@ int do_xxlock(struct mtd_info *mtd, loff_t adr, uint32_t len, int thunk)
 		goto out;
 	}
 out:	put_chip(map, chip);
-	spin_unlock(chip->mutex);
+	mutex_unlock(&chip->mutex);
 	return ret;
 }
 
@@ -771,10 +770,10 @@ int word_program(struct map_info *map, loff_t adr, uint32_t curval)
 	int chipnum = adr >> lpddr->chipshift;
 	struct flchip *chip = &lpddr->chips[chipnum];
 
-	spin_lock(chip->mutex);
+	mutex_lock(&chip->mutex);
 	ret = get_chip(map, chip, FL_WRITING);
 	if (ret) {
-		spin_unlock(chip->mutex);
+		mutex_unlock(&chip->mutex);
 		return ret;
 	}
 
@@ -788,7 +787,7 @@ int word_program(struct map_info *map, loff_t adr, uint32_t curval)
 	}
 
 out:	put_chip(map, chip);
-	spin_unlock(chip->mutex);
+	mutex_unlock(&chip->mutex);
 	return ret;
 }
 
diff --git a/drivers/mtd/lpddr/qinfo_probe.c b/drivers/mtd/lpddr/qinfo_probe.c
index 79bf40f48b75..dbfe17baf046 100644
--- a/drivers/mtd/lpddr/qinfo_probe.c
+++ b/drivers/mtd/lpddr/qinfo_probe.c
@@ -134,13 +134,12 @@ out:
 static int lpddr_chip_setup(struct map_info *map, struct lpddr_private *lpddr)
 {
 
-	lpddr->qinfo = kmalloc(sizeof(struct qinfo_chip), GFP_KERNEL);
+	lpddr->qinfo = kzalloc(sizeof(struct qinfo_chip), GFP_KERNEL);
 	if (!lpddr->qinfo) {
 		printk(KERN_WARNING "%s: no memory for LPDDR qinfo structure\n",
 				map->name);
 		return 0;
 	}
-	memset(lpddr->qinfo, 0, sizeof(struct qinfo_chip));
 
 	/* Get the ManuID */
 	lpddr->ManufactId = CMDVAL(map_read(map, map->pfow_base + PFOW_MANUFACTURER_ID));
@@ -185,13 +184,11 @@ static struct lpddr_private *lpddr_probe_chip(struct map_info *map)
 	lpddr.numchips = 1;
 
 	numvirtchips = lpddr.numchips * lpddr.qinfo->HWPartsNum;
-	retlpddr = kmalloc(sizeof(struct lpddr_private) +
+	retlpddr = kzalloc(sizeof(struct lpddr_private) +
 			numvirtchips * sizeof(struct flchip), GFP_KERNEL);
 	if (!retlpddr)
 		return NULL;
 
-	memset(retlpddr, 0, sizeof(struct lpddr_private) +
-				numvirtchips * sizeof(struct flchip));
 	memcpy(retlpddr, &lpddr, sizeof(struct lpddr_private));
 
 	retlpddr->numchips = numvirtchips;