gpio: Adjust of_xlate API to support multiple GPIO chips
This patch changes the of_xlate API to make it possible for multiple gpio_chips to refer to the same device tree node. This is useful for banked GPIO controllers that use multiple gpio_chips for a single device. With this change the core code will try calling of_xlate on each gpio_chip that references the device_node and will return the gpio number for the first one to return 'true'. Tested-by: NRoland Stigge <stigge@antcom.de> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Showing
想要评论请 注册 或 登录