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/amba/bus.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index 47bbdc1..a8a8e13 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -187,8 +187,15 @@ static int amba_probe(struct device *dev)
if (ret == -EPROBE_DEFER)
break;
+ ret = dev_pm_domain_get(dev->pm_domain);
+ if (ret) {
+ dev_pm_domain_detach(dev, true);
+ break;
+ }
+
ret = amba_get_enable_pclk(pcdev);
if (ret) {
+ dev_pm_domain_put(dev->pm_domain);
dev_pm_domain_detach(dev, true);
break;
}
@@ -198,6 +205,7 @@ static int amba_probe(struct device *dev)
pm_runtime_enable(dev);
ret = pcdrv->probe(pcdev, id);
+ dev_pm_domain_put(dev->pm_domain);
if (ret == 0)
break;
--
1.9.1
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