To sucessfully probe some devices their corresponding PM domains may
need to be powered.
Use the dev_pm_domain_get|put() APIs, to control the behavior of the PM
domain.
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
---
drivers/i2c/i2c-core.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 2f90ac6..37a52c6 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -646,8 +646,15 @@ static int i2c_device_probe(struct device *dev)
status = dev_pm_domain_attach(&client->dev, true);
if (status != -EPROBE_DEFER) {
+ status = dev_pm_domain_get(client->dev.pm_domain);
+ if (status) {
+ dev_pm_domain_detach(&client->dev, true);
+ return status;
+ }
+
status = driver->probe(client, i2c_match_id(driver->id_table,
client));
+ dev_pm_domain_put(client->dev.pm_domain);
if (status)
dev_pm_domain_detach(&client->dev, true);
}
--
1.9.1
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