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path: root/drivers/mtd/lpddr
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Diffstat (limited to 'drivers/mtd/lpddr')
-rw-r--r--drivers/mtd/lpddr/lpddr_cmds.c79
1 files changed, 39 insertions, 40 deletions
diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c
index e22ca49583e7..eb6f437ca9ec 100644
--- a/drivers/mtd/lpddr/lpddr_cmds.c
+++ b/drivers/mtd/lpddr/lpddr_cmds.c
@@ -106,8 +106,7 @@ 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++;
}
}
@@ -143,7 +142,7 @@ 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
@@ -158,17 +157,17 @@ 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 */
@@ -229,20 +228,20 @@ 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);
@@ -251,10 +250,10 @@ 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.
@@ -264,10 +263,10 @@ 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;
}
@@ -336,10 +335,10 @@ 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;
}
}
@@ -355,12 +354,12 @@ 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;
}
@@ -413,10 +412,10 @@ 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 */
@@ -477,7 +476,7 @@ 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;
}
@@ -489,10 +488,10 @@ 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);
@@ -504,7 +503,7 @@ 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;
}
@@ -517,10 +516,10 @@ 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;
}
@@ -528,7 +527,7 @@ 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;
}
@@ -568,9 +567,9 @@ 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;
@@ -610,7 +609,7 @@ 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)
@@ -620,7 +619,7 @@ 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;
@@ -726,10 +725,10 @@ 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;
}
@@ -749,7 +748,7 @@ 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;
}
@@ -770,10 +769,10 @@ 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;
}
@@ -787,7 +786,7 @@ 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;
}