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path: root/drivers/mtd/nand/raw/tmio_nand.c
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Diffstat (limited to 'drivers/mtd/nand/raw/tmio_nand.c')
-rw-r--r--drivers/mtd/nand/raw/tmio_nand.c21
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/mtd/nand/raw/tmio_nand.c b/drivers/mtd/nand/raw/tmio_nand.c
index f3b59e649b7d..db030f1701ee 100644
--- a/drivers/mtd/nand/raw/tmio_nand.c
+++ b/drivers/mtd/nand/raw/tmio_nand.c
@@ -104,6 +104,7 @@
struct tmio_nand {
struct nand_chip chip;
+ struct completion comp;
struct platform_device *dev;
@@ -168,15 +169,11 @@ static int tmio_nand_dev_ready(struct nand_chip *chip)
static irqreturn_t tmio_irq(int irq, void *__tmio)
{
struct tmio_nand *tmio = __tmio;
- struct nand_chip *nand_chip = &tmio->chip;
/* disable RDYREQ interrupt */
tmio_iowrite8(0x00, tmio->fcr + FCR_IMR);
+ complete(&tmio->comp);
- if (unlikely(!waitqueue_active(&nand_chip->controller->wq)))
- dev_warn(&tmio->dev->dev, "spurious interrupt\n");
-
- wake_up(&nand_chip->controller->wq);
return IRQ_HANDLED;
}
@@ -193,18 +190,18 @@ static int tmio_nand_wait(struct nand_chip *nand_chip)
u8 status;
/* enable RDYREQ interrupt */
+
tmio_iowrite8(0x0f, tmio->fcr + FCR_ISR);
+ reinit_completion(&tmio->comp);
tmio_iowrite8(0x81, tmio->fcr + FCR_IMR);
- timeout = wait_event_timeout(nand_chip->controller->wq,
- tmio_nand_dev_ready(nand_chip),
- msecs_to_jiffies(nand_chip->state == FL_ERASING ? 400 : 20));
+ timeout = 400;
+ timeout = wait_for_completion_timeout(&tmio->comp,
+ msecs_to_jiffies(timeout));
if (unlikely(!tmio_nand_dev_ready(nand_chip))) {
tmio_iowrite8(0x00, tmio->fcr + FCR_IMR);
- dev_warn(&tmio->dev->dev, "still busy with %s after %d ms\n",
- nand_chip->state == FL_ERASING ? "erase" : "program",
- nand_chip->state == FL_ERASING ? 400 : 20);
+ dev_warn(&tmio->dev->dev, "still busy after 400 ms\n");
} else if (unlikely(!timeout)) {
tmio_iowrite8(0x00, tmio->fcr + FCR_IMR);
@@ -378,6 +375,8 @@ static int tmio_probe(struct platform_device *dev)
if (!tmio)
return -ENOMEM;
+ init_completion(&tmio->comp);
+
tmio->dev = dev;
platform_set_drvdata(dev, tmio);