PM / Domains: add setter for dev.pm_domain

Adds a function that sets the pointer to dev_pm_domain in struct device
and that warns if the device has already finished probing. The reason
why we want to enforce that is because in the general case that can
cause problems and also that we can simplify code quite a bit if we can
always assume that.

This patch also changes all current code that directly sets the
dev.pm_domain pointer.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index 72ebc4c16bae..220822bcfe3f 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -32,6 +32,7 @@
 #include <linux/io.h>
 #include <linux/clk.h>
 #include <linux/clkdev.h>
+#include <linux/pm_domain.h>
 #include <linux/pm_runtime.h>
 #include <linux/of.h>
 #include <linux/notifier.h>
@@ -168,7 +169,7 @@ static int omap_device_build_from_dt(struct platform_device *pdev)
                         r->name = dev_name(&pdev->dev);
         }
 
-        pdev->dev.pm_domain = &omap_device_pm_domain;
+        dev_pm_domain_set(&pdev->dev, &omap_device_pm_domain);
 
         if (device_active) {
                 omap_device_enable(pdev);
@@ -180,7 +181,7 @@ odbfd_exit1:
 odbfd_exit:
         /* if data/we are at fault.. load up a fail handler */
         if (ret)
-                pdev->dev.pm_domain = &omap_device_fail_pm_domain;
+                dev_pm_domain_set(&pdev->dev, &omap_device_fail_pm_domain);
 
         return ret;
 }
@@ -701,7 +702,7 @@ int omap_device_register(struct platform_device *pdev)
 {
         pr_debug("omap_device: %s: registering\n", pdev->name);
 
-        pdev->dev.pm_domain = &omap_device_pm_domain;
+        dev_pm_domain_set(&pdev->dev, &omap_device_pm_domain);
         return platform_device_add(pdev);
 }