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git.proxmox.com Git - mirror_ubuntu-focal-kernel.git/blob - drivers/clk/clk-devres.c
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License version 2 as
4 * published by the Free Software Foundation.
8 #include <linux/device.h>
9 #include <linux/export.h>
10 #include <linux/gfp.h>
12 static void devm_clk_release(struct device
*dev
, void *res
)
14 clk_put(*(struct clk
**)res
);
17 struct clk
*devm_clk_get(struct device
*dev
, const char *id
)
19 struct clk
**ptr
, *clk
;
21 ptr
= devres_alloc(devm_clk_release
, sizeof(*ptr
), GFP_KERNEL
);
23 return ERR_PTR(-ENOMEM
);
25 clk
= clk_get(dev
, id
);
35 EXPORT_SYMBOL(devm_clk_get
);
37 struct clk_bulk_devres
{
38 struct clk_bulk_data
*clks
;
42 static void devm_clk_bulk_release(struct device
*dev
, void *res
)
44 struct clk_bulk_devres
*devres
= res
;
46 clk_bulk_put(devres
->num_clks
, devres
->clks
);
49 int __must_check
devm_clk_bulk_get(struct device
*dev
, int num_clks
,
50 struct clk_bulk_data
*clks
)
52 struct clk_bulk_devres
*devres
;
55 devres
= devres_alloc(devm_clk_bulk_release
,
56 sizeof(*devres
), GFP_KERNEL
);
60 ret
= clk_bulk_get(dev
, num_clks
, clks
);
63 devres
->num_clks
= num_clks
;
64 devres_add(dev
, devres
);
71 EXPORT_SYMBOL_GPL(devm_clk_bulk_get
);
73 static int devm_clk_match(struct device
*dev
, void *res
, void *data
)
83 void devm_clk_put(struct device
*dev
, struct clk
*clk
)
87 ret
= devres_release(dev
, devm_clk_release
, devm_clk_match
, clk
);
91 EXPORT_SYMBOL(devm_clk_put
);
93 struct clk
*devm_get_clk_from_child(struct device
*dev
,
94 struct device_node
*np
, const char *con_id
)
96 struct clk
**ptr
, *clk
;
98 ptr
= devres_alloc(devm_clk_release
, sizeof(*ptr
), GFP_KERNEL
);
100 return ERR_PTR(-ENOMEM
);
102 clk
= of_clk_get_by_name(np
, con_id
);
105 devres_add(dev
, ptr
);
112 EXPORT_SYMBOL(devm_get_clk_from_child
);