[PATCH 044/112] ACPI: thinkpad-acpi: add suspend handler

[Len Brown]

From: Henrique de Moraes Holschuh <[EMAIL PROTECTED]>

Add a handler for suspend events.

Signed-off-by: Henrique de Moraes Holschuh <[EMAIL PROTECTED]>
Signed-off-by: Len Brown <[EMAIL PROTECTED]>
---
 drivers/misc/thinkpad_acpi.c |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index dd6fa81..c6c25a4 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -188,6 +188,7 @@ struct ibm_struct {
        int (*write) (char *);
        void (*exit) (void);
        void (*resume) (void);
+       void (*suspend) (pm_message_t state);
 
        struct list_head all_drivers;
 
@@ -658,6 +659,21 @@ static struct input_dev *tpacpi_inputdev;
 static struct mutex tpacpi_inputdev_send_mutex;
 static LIST_HEAD(tpacpi_all_drivers);
 
+static int tpacpi_suspend_handler(struct platform_device *pdev,
+                                 pm_message_t state)
+{
+       struct ibm_struct *ibm, *itmp;
+
+       list_for_each_entry_safe(ibm, itmp,
+                                &tpacpi_all_drivers,
+                                all_drivers) {
+               if (ibm->suspend)
+                       (ibm->suspend)(state);
+       }
+
+       return 0;
+}
+
 static int tpacpi_resume_handler(struct platform_device *pdev)
 {
        struct ibm_struct *ibm, *itmp;
@@ -677,6 +693,7 @@ static struct platform_driver tpacpi_pdriver = {
                .name = TPACPI_DRVR_NAME,
                .owner = THIS_MODULE,
        },
+       .suspend = tpacpi_suspend_handler,
        .resume = tpacpi_resume_handler,
 };
 
-- 
1.5.4.23.gef5b9

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