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mtd: nand: atmel: Add PM ops

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Provide a ->resume() hook to make sure the NAND timings are correctly
restored by resetting all chips connected to the controller.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This commit is contained in:
Boris Brezillon 2017-03-16 09:36:00 +01:00
parent f9ce2eddf1
commit 6e532afaca
1 changed files with 18 additions and 0 deletions
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18
drivers/mtd/nand/atmel/nand-controller.c
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@ -2506,6 +2506,24 @@ static int atmel_nand_controller_remove(struct platform_device *pdev)
return nc->caps->ops->remove(nc);
}
static int atmel_nand_controller_resume(struct device *dev)
{
struct atmel_nand_controller *nc = dev_get_drvdata(dev);
struct atmel_nand *nand;
list_for_each_entry(nand, &nc->chips, node) {
int i;
for (i = 0; i < nand->numcs; i++)
nand_reset(&nand->base, i);
}
return 0;
}
static SIMPLE_DEV_PM_OPS(atmel_nand_controller_pm_ops, NULL,
atmel_nand_controller_resume);
static struct platform_driver atmel_nand_controller_driver = {
.driver = {
.name = "atmel-nand-controller",