1 files changed, 27 insertions, 0 deletions

diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c
index abf4dfc8ec22..dcefe1d2adbd 100644
--- a/drivers/hwmon/hp_accel.c
+++ b/drivers/hwmon/hp_accel.c
@@ -213,6 +213,30 @@ static struct delayed_led_classdev hpled_led = {
         .set_brightness = hpled_set,
 };
 
+static acpi_status
+lis3lv02d_get_resource(struct acpi_resource *resource, void *context)
+{
+        if (resource->type == ACPI_RESOURCE_TYPE_EXTENDED_IRQ) {
+                struct acpi_resource_extended_irq *irq;
+                u32 *device_irq = context;
+
+                irq = &resource->data.extended_irq;
+                *device_irq = irq->interrupts[0];
+        }
+
+        return AE_OK;
+}
+
+static void lis3lv02d_enum_resources(struct acpi_device *device)
+{
+        acpi_status status;
+
+        status = acpi_walk_resources(device->handle, METHOD_NAME__CRS,
+                                        lis3lv02d_get_resource, &adev.irq);
+        if (ACPI_FAILURE(status))
+                printk(KERN_DEBUG DRIVER_NAME ": Error getting resources\n");
+}
+
 static int lis3lv02d_add(struct acpi_device *device)
 {
         u8 val;
@@ -247,6 +271,9 @@ static int lis3lv02d_add(struct acpi_device *device)
         if (ret)
                 return ret;
 
+        /* obtain IRQ number of our device from ACPI */
+        lis3lv02d_enum_resources(adev.device);
+
         ret = lis3lv02d_init_device(&adev);
         if (ret) {
                 flush_work(&hpled_led.work);