1 /* 2 * drivers/mfd/mfd-core.h 3 * 4 * core MFD support 5 * Copyright (c) 2006 Ian Molton 6 * Copyright (c) 2007 Dmitry Baryshkov 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 * 12 */ 13 14 #ifndef MFD_CORE_H 15 #define MFD_CORE_H 16 17 #include <linux/platform_device.h> 18 19 /* 20 * This struct describes the MFD part ("cell"). 21 * After registration the copy of this structure will become the platform data 22 * of the resulting platform_device 23 */ 24 struct mfd_cell { 25 const char *name; 26 int id; 27 28 int (*enable)(struct platform_device *dev); 29 int (*disable)(struct platform_device *dev); 30 int (*suspend)(struct platform_device *dev); 31 int (*resume)(struct platform_device *dev); 32 33 /* driver-specific data for MFD-aware "cell" drivers */ 34 void *driver_data; 35 36 /* platform_data can be used to either pass data to "generic" 37 driver or as a hook to mfd_cell for the "cell" drivers */ 38 void *platform_data; 39 size_t data_size; 40 41 /* 42 * This resources can be specified relatievly to the parent device. 43 * For accessing device you should use resources from device 44 */ 45 int num_resources; 46 const struct resource *resources; 47 48 /* don't check for resource conflicts */ 49 bool ignore_resource_conflicts; 50 }; 51 52 extern int mfd_add_devices(struct device *parent, int id, 53 const struct mfd_cell *cells, int n_devs, 54 struct resource *mem_base, 55 int irq_base); 56 57 extern void mfd_remove_devices(struct device *parent); 58 59 #endif 60