1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * (C) Copyright 2017 4 * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc 5 */ 6 7 #ifndef _GDSYS_SOC_H_ 8 #define _GDSYS_SOC_H_ 9 10 /** 11 * gdsys_soc_get_fpga() - Retrieve pointer to parent bus' FPGA device 12 * @child: The child device on the FPGA bus needing access to the FPGA. 13 * @fpga: Pointer to the retrieved FPGA device. 14 * 15 * To access their register maps, devices on gdsys soc buses usually have 16 * facilitate the accessor function of the IHS FPGA their parent bus is 17 * attached to. To access the FPGA device from within the bus' children, this 18 * function returns a pointer to it. 19 * 20 * Return: 0 on success, -ve on failure 21 */ 22 int gdsys_soc_get_fpga(struct udevice *child, struct udevice **fpga); 23 #endif /* _GDSYS_SOC_H_ */ 24