1 /* 2 * Copyright (c) 2013 Google, Inc 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #ifndef __DM_UTIL_H 8 #define __DM_UTIL_H 9 10 #ifdef CONFIG_DM_WARN 11 void dm_warn(const char *fmt, ...); 12 #else 13 static inline void dm_warn(const char *fmt, ...) 14 { 15 } 16 #endif 17 18 #ifdef DEBUG 19 void dm_dbg(const char *fmt, ...); 20 #else 21 static inline void dm_dbg(const char *fmt, ...) 22 { 23 } 24 #endif 25 26 struct list_head; 27 28 /** 29 * list_count_items() - Count number of items in a list 30 * 31 * @param head: Head of list 32 * @return number of items, or 0 if empty 33 */ 34 int list_count_items(struct list_head *head); 35 36 /* Dump out a tree of all devices */ 37 void dm_dump_all(void); 38 39 /* Dump out a list of uclasses and their devices */ 40 void dm_dump_uclass(void); 41 42 #ifdef CONFIG_DEBUG_DEVRES 43 /* Dump out a list of device resources */ 44 void dm_dump_devres(void); 45 #else 46 static inline void dm_dump_devres(void) 47 { 48 } 49 #endif 50 51 /** 52 * Check if a dt node should be or was bound before relocation. 53 * 54 * Devicetree nodes can be marked as needed to be bound 55 * in the loader stages via special devicetree properties. 56 * 57 * Before relocation this function can be used to check if nodes 58 * are required in either SPL or TPL stages. 59 * 60 * After relocation and jumping into the real U-Boot binary 61 * it is possible to determine if a node was bound in one of 62 * SPL/TPL stages. 63 * 64 * There are 3 settings currently in use 65 * - 66 * - u-boot,dm-pre-reloc: legacy and indicates any of TPL or SPL 67 * Existing platforms only use it to indicate nodes needee in 68 * SPL. Should probably be replaced by u-boot,dm-spl for 69 * existing platforms. 70 * @blob: devicetree 71 * @offset: node offset 72 * 73 * Returns true if node is needed in SPL/TL, false otherwise. 74 */ 75 bool dm_fdt_pre_reloc(const void *blob, int offset); 76 77 #endif 78