From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Fri, 19 Sep 2014 18:27:41 +0000 (+0200)
Subject: spi: core: Convert to dev_pm_domain_attach|detach()
X-Git-Tag: firefly_0821_release~176^2~3100^2~5^2~8
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=676e7c257a339b44b8a613be145b22b85cf2ffc4;p=firefly-linux-kernel-4.4.55.git

spi: core: Convert to dev_pm_domain_attach|detach()

Previously only the ACPI PM domain was supported by the spi bus.

Let's convert to the common attach/detach functions for PM domains,
which currently means we are extending the support to include the
generic PM domain as well.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index ca935df80c88..72a0beb1fafa 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -264,10 +264,12 @@ static int spi_drv_probe(struct device *dev)
 	if (ret)
 		return ret;
 
-	acpi_dev_pm_attach(dev, true);
-	ret = sdrv->probe(to_spi_device(dev));
-	if (ret)
-		acpi_dev_pm_detach(dev, true);
+	ret = dev_pm_domain_attach(dev, true);
+	if (ret != -EPROBE_DEFER) {
+		ret = sdrv->probe(to_spi_device(dev));
+		if (ret)
+			dev_pm_domain_detach(dev, true);
+	}
 
 	return ret;
 }
@@ -278,7 +280,7 @@ static int spi_drv_remove(struct device *dev)
 	int ret;
 
 	ret = sdrv->remove(to_spi_device(dev));
-	acpi_dev_pm_detach(dev, true);
+	dev_pm_domain_detach(dev, true);
 
 	return ret;
 }