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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 | // SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ * Written by Jean-Jacques Hiblot <jjhiblot@ti.com> */ #include <common.h> #include <dm.h> #include <generic-phy.h> static inline struct phy_ops *phy_dev_ops(struct udevice *dev) { return (struct phy_ops *)dev->driver->ops; } static int generic_phy_xlate_offs_flags(struct phy *phy, struct ofnode_phandle_args *args) { debug("%s(phy=%p)\n", __func__, phy); if (args->args_count > 1) { debug("Invaild args_count: %d\n", args->args_count); return -EINVAL; } if (args->args_count) phy->id = args->args[0]; else phy->id = 0; return 0; } int generic_phy_get_by_index(struct udevice *dev, int index, struct phy *phy) { struct ofnode_phandle_args args; struct phy_ops *ops; struct udevice *phydev; int i, ret; debug("%s(dev=%p, index=%d, phy=%p)\n", __func__, dev, index, phy); assert(phy); phy->dev = NULL; ret = dev_read_phandle_with_args(dev, "phys", "#phy-cells", 0, index, &args); if (ret) { debug("%s: dev_read_phandle_with_args failed: err=%d\n", __func__, ret); return ret; } ret = uclass_get_device_by_ofnode(UCLASS_PHY, args.node, &phydev); if (ret) { debug("%s: uclass_get_device_by_ofnode failed: err=%d\n", __func__, ret); /* Check if args.node's parent is a PHY provider */ ret = uclass_get_device_by_ofnode(UCLASS_PHY, ofnode_get_parent(args.node), &phydev); if (ret) return ret; /* insert phy idx at first position into args array */ for (i = args.args_count; i >= 1 ; i--) args.args[i] = args.args[i - 1]; args.args_count++; args.args[0] = ofnode_read_u32_default(args.node, "reg", -1); } phy->dev = phydev; ops = phy_dev_ops(phydev); if (ops->of_xlate) ret = ops->of_xlate(phy, &args); else ret = generic_phy_xlate_offs_flags(phy, &args); if (ret) { debug("of_xlate() failed: %d\n", ret); goto err; } return 0; err: return ret; } int generic_phy_get_by_name(struct udevice *dev, const char *phy_name, struct phy *phy) { int index; debug("%s(dev=%p, name=%s, phy=%p)\n", __func__, dev, phy_name, phy); index = dev_read_stringlist_search(dev, "phy-names", phy_name); if (index < 0) { debug("dev_read_stringlist_search() failed: %d\n", index); return index; } return generic_phy_get_by_index(dev, index, phy); } int generic_phy_init(struct phy *phy) { struct phy_ops const *ops; if (!phy) return 0; ops = phy_dev_ops(phy->dev); return ops->init ? ops->init(phy) : 0; } int generic_phy_reset(struct phy *phy) { struct phy_ops const *ops; if (!phy) return 0; ops = phy_dev_ops(phy->dev); return ops->reset ? ops->reset(phy) : 0; } int generic_phy_exit(struct phy *phy) { struct phy_ops const *ops; if (!phy) return 0; ops = phy_dev_ops(phy->dev); return ops->exit ? ops->exit(phy) : 0; } int generic_phy_power_on(struct phy *phy) { struct phy_ops const *ops; if (!phy) return 0; ops = phy_dev_ops(phy->dev); return ops->power_on ? ops->power_on(phy) : 0; } int generic_phy_power_off(struct phy *phy) { struct phy_ops const *ops; if (!phy) return 0; ops = phy_dev_ops(phy->dev); return ops->power_off ? ops->power_off(phy) : 0; } UCLASS_DRIVER(phy) = { .id = UCLASS_PHY, .name = "phy", }; |