1 files changed, 25 insertions, 0 deletions

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index f41135f2fb29..50d9019de2be 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -53,6 +53,7 @@ MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
 
 static int __init hp_wmi_bios_setup(struct platform_device *device);
 static int __exit hp_wmi_bios_remove(struct platform_device *device);
+static int hp_wmi_resume_handler(struct platform_device *device);
 
 struct bios_args {
         u32 signature;
@@ -101,6 +102,7 @@ static struct platform_driver hp_wmi_driver = {
         },
         .probe = hp_wmi_bios_setup,
         .remove = hp_wmi_bios_remove,
+        .resume = hp_wmi_resume_handler,
 };
 
 static int hp_wmi_perform_query(int query, int write, int value)
@@ -487,6 +489,29 @@ static int __exit hp_wmi_bios_remove(struct platform_device *device)
         return 0;
 }
 
+static int hp_wmi_resume_handler(struct platform_device *device)
+{
+        struct key_entry *key;
+
+        /*
+         * Docking state may have changed while suspended, so trigger
+         * an input event for the current state. As this is a switch,
+         * the input layer will only actually pass it on if the state
+         * changed.
+         */
+        for (key = hp_wmi_keymap; key->type != KE_END; key++) {
+                switch (key->type) {
+                case KE_SW:
+                        input_report_switch(hp_wmi_input_dev, key->keycode,
+                                            hp_wmi_dock_state());
+                        input_sync(hp_wmi_input_dev);
+                        break;
+                }
+        }
+
+        return 0;
+}
+
 static int __init hp_wmi_init(void)
 {
         int err;