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path: root/drivers/input/rmi4/rmi_driver.c
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Diffstat (limited to 'drivers/input/rmi4/rmi_driver.c')
-rw-r--r--drivers/input/rmi4/rmi_driver.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c
index b3985500dd91..23d705be39d4 100644
--- a/drivers/input/rmi4/rmi_driver.c
+++ b/drivers/input/rmi4/rmi_driver.c
@@ -266,6 +266,19 @@ static int rmi_irq_init(struct rmi_device *rmi_dev)
return 0;
}
+struct rmi_function *rmi_find_function(struct rmi_device *rmi_dev, u8 number)
+{
+ struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev);
+ struct rmi_function *entry;
+
+ list_for_each_entry(entry, &data->function_list, node) {
+ if (entry->fd.function_number == number)
+ return entry;
+ }
+
+ return NULL;
+}
+
static int suspend_one_function(struct rmi_function *fn)
{
struct rmi_function_handler *fh;