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.hans...@linaro.org>
---
drivers/spi/spi.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 3907f14..ad1a6f3 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -267,7 +267,14 @@ static int spi_drv_probe(struct device *dev)
ret = dev_pm_domain_attach(dev, true);
if (ret != -EPROBE_DEFER) {
+ ret = dev_pm_domain_get(dev->pm_domain);
+ if (ret) {
+ dev_pm_domain_detach(dev, true);
+ return ret;
+ }
+
ret = sdrv->probe(to_spi_device(dev));
+ dev_pm_domain_put(dev->pm_domain);
if (ret)
dev_pm_domain_detach(dev, true);
}
--
1.9.1
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