drivers/clk/clkdev.c

1 // SPDX-License-Identifier: GPL-2.0-only
19 #include <linux/clk-provider.h>
33  * Then we take the most specific entry - with the following
50 		if (p->dev_id) {  in clk_find()
51 			if (!dev_id || strcmp(p->dev_id, dev_id))  in clk_find()
55 		if (p->con_id) {  in clk_find()
56 			if (!con_id || strcmp(p->con_id, con_id))  in clk_find()
75 	struct clk_hw *hw = ERR_PTR(-ENOENT);  in clk_find_hw()
80 		hw = cl->clk_hw;  in clk_find_hw()
105 	if (dev && dev->of_node) {  in clk_get()
106 		hw = of_clk_get_hw(dev->of_node, 0, con_id);  in clk_get()
107 		if (!IS_ERR(hw) || PTR_ERR(hw) == -EPROBE_DEFER)  in clk_get()
124 	list_add_tail(&cl->node, &clocks);  in __clkdev_add()
130 	if (!cl->clk_hw)  in clkdev_add()
131 		cl->clk_hw = __clk_get_hw(cl->clk);  in clkdev_add()
139 	while (num--) {  in clkdev_add_table()
140 		cl->clk_hw = __clk_get_hw(cl->clk);  in clkdev_add_table()
141 		list_add_tail(&cl->node, &clocks);  in clkdev_add_table()
166 	cla->cl.clk_hw = hw;  in vclkdev_alloc()
168 		strscpy(cla->con_id, con_id, sizeof(cla->con_id));  in vclkdev_alloc()
169 		cla->cl.con_id = cla->con_id;  in vclkdev_alloc()
173 		vscnprintf(cla->dev_id, sizeof(cla->dev_id), dev_fmt, ap);  in vclkdev_alloc()
174 		cla->cl.dev_id = cla->dev_id;  in vclkdev_alloc()
177 	return &cla->cl;  in vclkdev_alloc()
194  * clkdev_create - allocate and add a clkdev lookup structure
217  * clkdev_hw_create - allocate and add a clkdev lookup structure
252 	return l ? 0 : -ENODEV;  in clk_add_alias()
257  * clkdev_drop - remove a clock dynamically allocated
262 	list_del(&cl->node);  in clkdev_drop()
296 	return *cl ? 0 : -ENOMEM;  in do_clk_register_clkdev()
300  * clk_register_clkdev - register one clock lookup for a struct clk
308  * To make things easier for mass registration, we detect error clks
309  * from a previous clk_register() call, and return the error code for
327  * clk_hw_register_clkdev - register one clock lookup for a struct clk_hw
335  * To make things easier for mass registration, we detect error clk_hws
336  * from a previous clk_hw_register_*() call, and return the error code for
355  * devm_clk_hw_register_clkdev - managed clk lookup registration for clk_hw
364  * To make things easier for mass registration, we detect error clk_hws
365  * from a previous clk_hw_register_*() call, and return the error code for