[PATCH v2 7/7] memory: atmel-ebi: Add PM ops
Boris Brezillon
boris.brezillon at free-electrons.com
Thu Mar 16 01:30:34 PDT 2017
Add a ->resume() hook to make sure the EBI dev configs are correctly
restored when resuming the platform.
Signed-off-by: Boris Brezillon <boris.brezillon at free-electrons.com>
---
drivers/memory/atmel-ebi.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/memory/atmel-ebi.c b/drivers/memory/atmel-ebi.c
index 7d24a957e98c..35910f945bfa 100644
--- a/drivers/memory/atmel-ebi.c
+++ b/drivers/memory/atmel-ebi.c
@@ -507,6 +507,8 @@ static int atmel_ebi_probe(struct platform_device *pdev)
if (!ebi)
return -ENOMEM;
+ platform_set_drvdata(pdev, ebi);
+
INIT_LIST_HEAD(&ebi->devs);
ebi->caps = match->data;
ebi->dev = dev;
@@ -579,10 +581,28 @@ static int atmel_ebi_probe(struct platform_device *pdev)
return of_platform_populate(np, NULL, NULL, dev);
}
+static int atmel_ebi_resume(struct device *dev)
+{
+ struct atmel_ebi *ebi = dev_get_drvdata(dev);
+ struct atmel_ebi_dev *ebid;
+
+ list_for_each_entry(ebid, &ebi->devs, node) {
+ int i;
+
+ for (i = 0; i < ebid->numcs; i++)
+ ebid->ebi->caps->apply_config(ebid, &ebid->configs[i]);
+ }
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(atmel_ebi_pm_ops, NULL, atmel_ebi_resume);
+
static struct platform_driver atmel_ebi_driver = {
.driver = {
.name = "atmel-ebi",
.of_match_table = atmel_ebi_id_table,
+ .pm = &atmel_ebi_pm_ops,
},
};
builtin_platform_driver_probe(atmel_ebi_driver, atmel_ebi_probe);
--
2.7.4
More information about the linux-arm-kernel
mailing list