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mtd: nand: r852: use the mtd instance embedded in struct nand_chip 

struct nand_chip now embeds an mtd device. Make use of this mtd instance.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Boris BREZILLON 2015-12-10 09:00:21 +01:00 committed by Brian Norris
parent 063294a36e
commit de9f56f913
2 changed files with 15 additions and 20 deletions
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34
drivers/mtd/nand/r852.c
View File

@ -634,25 +634,22 @@ static void r852_update_media_status(struct r852_device *dev)
*/
static int r852_register_nand_device(struct r852_device *dev)
{
dev->mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL);
if (!dev->mtd)
goto error1;
struct mtd_info *mtd = nand_to_mtd(dev->chip);
WARN_ON(dev->card_registred);
dev->mtd->priv = dev->chip;
dev->mtd->dev.parent = &dev->pci_dev->dev;
mtd->priv = dev->chip;
mtd->dev.parent = &dev->pci_dev->dev;
if (dev->readonly)
dev->chip->options |= NAND_ROM;
r852_engine_enable(dev);
if (sm_register_device(dev->mtd, dev->sm))
goto error2;
if (sm_register_device(mtd, dev->sm))
goto error1;
if (device_create_file(&dev->mtd->dev, &dev_attr_media_type)) {
if (device_create_file(&mtd->dev, &dev_attr_media_type)) {
message("can't create media type sysfs attribute");
goto error3;
}
@ -660,9 +657,7 @@ static int r852_register_nand_device(struct r852_device *dev)
dev->card_registred = 1;
return 0;
error3:
nand_release(dev->mtd);
error2:
kfree(dev->mtd);
nand_release(mtd);
error1:
/* Force card redetect */
dev->card_detected = 0;
@ -675,15 +670,15 @@ error1:
static void r852_unregister_nand_device(struct r852_device *dev)
{
struct mtd_info *mtd = nand_to_mtd(dev->chip);
if (!dev->card_registred)
return;
device_remove_file(&dev->mtd->dev, &dev_attr_media_type);
nand_release(dev->mtd);
device_remove_file(&mtd->dev, &dev_attr_media_type);
nand_release(mtd);
r852_engine_disable(dev);
dev->card_registred = 0;
kfree(dev->mtd);
dev->mtd = NULL;
}
/* Card state updater */
@ -1031,6 +1026,7 @@ static int r852_suspend(struct device *device)
static int r852_resume(struct device *device)
{
struct r852_device *dev = pci_get_drvdata(to_pci_dev(device));
struct mtd_info *mtd = nand_to_mtd(dev->chip);
r852_disable_irqs(dev);
r852_card_update_present(dev);
@ -1050,9 +1046,9 @@ static int r852_resume(struct device *device)
/* Otherwise, initialize the card */
if (dev->card_registred) {
r852_engine_enable(dev);
dev->chip->select_chip(dev->mtd, 0);
dev->chip->cmdfunc(dev->mtd, NAND_CMD_RESET, -1, -1);
dev->chip->select_chip(dev->mtd, -1);
dev->chip->select_chip(mtd, 0);
dev->chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
dev->chip->select_chip(mtd, -1);
}
/* Program card detection IRQ */

1
drivers/mtd/nand/r852.h
View File

@ -108,7 +108,6 @@
struct r852_device {
void __iomem *mmio; /* mmio */
struct mtd_info *mtd; /* mtd backpointer */
struct nand_chip *chip; /* nand chip backpointer */
struct pci_dev *pci_dev; /* pci backpointer */