From: Benjamin Tissoires Date: Mon, 6 Feb 2017 17:57:01 +0000 (-0800) Subject: Input: synaptics-rmi4 - add rmi_find_function() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f32361b71ae5c81b8fb96f796ab947ba2ad17aa8;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git Input: synaptics-rmi4 - add rmi_find_function() If a function needs to communicate with an other, it's better to have a way to retrieve this other. Reviewed-by: Andrew Duggan Signed-off-by: Benjamin Tissoires Signed-off-by: Dmitry Torokhov --- 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; diff --git a/drivers/input/rmi4/rmi_driver.h b/drivers/input/rmi4/rmi_driver.h index a480333a9e1c..6e0449cdca68 100644 --- a/drivers/input/rmi4/rmi_driver.h +++ b/drivers/input/rmi4/rmi_driver.h @@ -93,6 +93,7 @@ bool rmi_is_physical_driver(struct device_driver *); int rmi_register_physical_driver(void); void rmi_unregister_physical_driver(void); void rmi_free_function_list(struct rmi_device *rmi_dev); +struct rmi_function *rmi_find_function(struct rmi_device *rmi_dev, u8 number); int rmi_enable_sensor(struct rmi_device *rmi_dev); int rmi_scan_pdt(struct rmi_device *rmi_dev, void *ctx, int (*callback)(struct rmi_device *rmi_dev, void *ctx,