common.c (6ea24cf79e055f0a62a64baa8587e2254a493c7b) common.c (ce15ed4c5dfb3f7757e6611902aed5db253af977)
1/*
2 * Provides code common for host and device side USB.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation, version 2.
7 *
8 * If either host side (ie. CONFIG_USB=y) or device side USB stack

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126}
127EXPORT_SYMBOL_GPL(usb_get_dr_mode);
128
129#ifdef CONFIG_OF
130/**
131 * of_usb_get_dr_mode_by_phy - Get dual role mode for the controller device
132 * which is associated with the given phy device_node
133 * @np: Pointer to the given phy device_node
1/*
2 * Provides code common for host and device side USB.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation, version 2.
7 *
8 * If either host side (ie. CONFIG_USB=y) or device side USB stack

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126}
127EXPORT_SYMBOL_GPL(usb_get_dr_mode);
128
129#ifdef CONFIG_OF
130/**
131 * of_usb_get_dr_mode_by_phy - Get dual role mode for the controller device
132 * which is associated with the given phy device_node
133 * @np: Pointer to the given phy device_node
134 * @arg0: phandle args[0] for phy's with #phy-cells >= 1, or -1 for
135 * phys which do not have phy-cells
134 *
135 * In dts a usb controller associates with phy devices. The function gets
136 * the string from property 'dr_mode' of the controller associated with the
137 * given phy device node, and returns the correspondig enum usb_dr_mode.
138 */
136 *
137 * In dts a usb controller associates with phy devices. The function gets
138 * the string from property 'dr_mode' of the controller associated with the
139 * given phy device node, and returns the correspondig enum usb_dr_mode.
140 */
139enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *phy_np)
141enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *np, int arg0)
140{
141 struct device_node *controller = NULL;
142{
143 struct device_node *controller = NULL;
142 struct device_node *phy;
144 struct of_phandle_args args;
143 const char *dr_mode;
144 int index;
145 int err;
146
147 do {
148 controller = of_find_node_with_property(controller, "phys");
149 index = 0;
150 do {
145 const char *dr_mode;
146 int index;
147 int err;
148
149 do {
150 controller = of_find_node_with_property(controller, "phys");
151 index = 0;
152 do {
151 phy = of_parse_phandle(controller, "phys", index);
152 of_node_put(phy);
153 if (phy == phy_np)
153 if (arg0 == -1) {
154 args.np = of_parse_phandle(controller, "phys",
155 index);
156 args.args_count = 0;
157 } else {
158 err = of_parse_phandle_with_args(controller,
159 "phys", "#phy-cells",
160 index, &args);
161 if (err)
162 break;
163 }
164
165 of_node_put(args.np);
166 if (args.np == np && (args.args_count == 0 ||
167 args.args[0] == arg0))
154 goto finish;
155 index++;
168 goto finish;
169 index++;
156 } while (phy);
170 } while (args.np);
157 } while (controller);
158
159finish:
160 err = of_property_read_string(controller, "dr_mode", &dr_mode);
161 of_node_put(controller);
162
163 if (err < 0)
164 return USB_DR_MODE_UNKNOWN;

--- 79 unchanged lines hidden --- 		171 } while (controller);
172
173finish:
174 err = of_property_read_string(controller, "dr_mode", &dr_mode);
175 of_node_put(controller);
176
177 if (err < 0)
178 return USB_DR_MODE_UNKNOWN;

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