[PATCH v1] mtd: rawnand: cafe: Use generic power management

[Vaibhav Gupta <vaibhavgupta40@gmail.com>]

Switch to the generic PCI power management framework and remove legacy
callbacks like .resume(). With the generic framework, the standard PCI
related work like:
	- pci_save/restore_state()
	- pci_enable/disable_device()
	- pci_set_power_state()
is handled by the PCI core.

This driver should implement only cafe_nand specific operations in its
callback function for resume.

Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
---
 drivers/mtd/nand/raw/cafe_nand.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/raw/cafe_nand.c b/drivers/mtd/nand/raw/cafe_nand.c
index 66385c4fb994..af771c379ec1 100644
--- a/drivers/mtd/nand/raw/cafe_nand.c
+++ b/drivers/mtd/nand/raw/cafe_nand.c
@@ -837,9 +837,10 @@ static const struct pci_device_id cafe_nand_tbl[] = {
 
 MODULE_DEVICE_TABLE(pci, cafe_nand_tbl);
 
-static int cafe_nand_resume(struct pci_dev *pdev)
+static int cafe_nand_resume(struct device *dev)
 {
 	uint32_t ctrl;
+	struct pci_dev *pdev = to_pci_dev(dev);
 	struct mtd_info *mtd = pci_get_drvdata(pdev);
 	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct cafe_priv *cafe = nand_get_controller_data(chip);
@@ -877,12 +878,14 @@ static int cafe_nand_resume(struct pci_dev *pdev)
 	return 0;
 }
 
+static DEFINE_SIMPLE_DEV_PM_OPS(cafe_nand_ops, NULL, cafe_nand_resume);
+
 static struct pci_driver cafe_nand_pci_driver = {
 	.name = "CAFÉ NAND",
 	.id_table = cafe_nand_tbl,
 	.probe = cafe_nand_probe,
 	.remove = cafe_nand_remove,
-	.resume = cafe_nand_resume,
+	.driver.pm = &cafe_nand_ops,
 };
 
 module_pci_driver(cafe_nand_pci_driver);
-- 
2.53.0