pda_power: Add function callbacks for suspend and resume

Add function prototypes for power management events so they can be
handled and used by platform implementations.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

2 files changed, 12 insertions, 0 deletions

diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
index a232de6a5703..69f8aa3a6a4b 100644
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -404,6 +404,13 @@ static int usb_wakeup_enabled;
 
 static int pda_power_suspend(struct platform_device *pdev, pm_message_t state)
 {
+        if (pdata->suspend) {
+                int ret = pdata->suspend(state);
+
+                if (ret)
+                        return ret;
+        }
+
         if (device_may_wakeup(&pdev->dev)) {
                 if (ac_irq)
                         ac_wakeup_enabled = !enable_irq_wake(ac_irq->start);
@@ -423,6 +430,9 @@ static int pda_power_resume(struct platform_device *pdev)
                         disable_irq_wake(ac_irq->start);
         }
 
+        if (pdata->resume)
+                return pdata->resume();
+
         return 0;
 }
 #else
diff --git a/include/linux/pda_power.h b/include/linux/pda_power.h
index d4cf7a2ceb3e..c9e4d814ff77 100644
--- a/include/linux/pda_power.h
+++ b/include/linux/pda_power.h
@@ -24,6 +24,8 @@ struct pda_power_pdata {
         int (*is_usb_online)(void);
         void (*set_charge)(int flags);
         void (*exit)(struct device *dev);
+        int (*suspend)(pm_message_t state);
+        int (*resume)(void);
 
         char **supplied_to;
         size_t num_supplicants;