[PATCH 3/3] memory: atmel-ebi: Add PM ops

From: Boris Brezillon
Date: Mon Feb 20 2017 - 12:17:17 EST


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@xxxxxxxxxxxxxxxxxx>
---
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 06a1a136d448..15120cb37cf0 100644
--- a/drivers/memory/atmel-ebi.c
+++ b/drivers/memory/atmel-ebi.c
@@ -506,6 +506,8 @@ 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;
@@ -578,10 +580,28 @@ 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