4 * Copyright (c) 2015 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
12 #define CTU_NAME_SIZE 16
13 #define CTU_NAME "ctu"
16 struct rsnd_ctu_platform_info
*info
; /* rcar_snd.h */
20 #define rsnd_ctu_nr(priv) ((priv)->ctu_nr)
21 #define for_each_rsnd_ctu(pos, priv, i) \
23 ((i) < rsnd_ctu_nr(priv)) && \
24 ((pos) = (struct rsnd_ctu *)(priv)->ctu + i); \
27 #define rsnd_ctu_initialize_lock(mod) __rsnd_ctu_initialize_lock(mod, 1)
28 #define rsnd_ctu_initialize_unlock(mod) __rsnd_ctu_initialize_lock(mod, 0)
29 static void __rsnd_ctu_initialize_lock(struct rsnd_mod
*mod
, u32 enable
)
31 rsnd_mod_write(mod
, CTU_CTUIR
, enable
);
34 static int rsnd_ctu_init(struct rsnd_mod
*mod
,
35 struct rsnd_dai_stream
*io
,
36 struct rsnd_priv
*priv
)
38 rsnd_mod_power_on(mod
);
40 rsnd_ctu_initialize_lock(mod
);
42 rsnd_mod_write(mod
, CTU_ADINR
, rsnd_get_adinr_chan(mod
, io
));
44 rsnd_ctu_initialize_unlock(mod
);
49 static int rsnd_ctu_quit(struct rsnd_mod
*mod
,
50 struct rsnd_dai_stream
*io
,
51 struct rsnd_priv
*priv
)
53 rsnd_mod_power_off(mod
);
58 static struct rsnd_mod_ops rsnd_ctu_ops
= {
60 .init
= rsnd_ctu_init
,
61 .quit
= rsnd_ctu_quit
,
64 struct rsnd_mod
*rsnd_ctu_mod_get(struct rsnd_priv
*priv
, int id
)
66 if (WARN_ON(id
< 0 || id
>= rsnd_ctu_nr(priv
)))
69 return rsnd_mod_get((struct rsnd_ctu
*)(priv
->ctu
) + id
);
72 static void rsnd_of_parse_ctu(struct platform_device
*pdev
,
73 const struct rsnd_of_data
*of_data
,
74 struct rsnd_priv
*priv
)
76 struct device_node
*node
;
77 struct rsnd_ctu_platform_info
*ctu_info
;
78 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
79 struct device
*dev
= &pdev
->dev
;
85 node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,ctu");
89 nr
= of_get_child_count(node
);
91 goto rsnd_of_parse_ctu_end
;
93 ctu_info
= devm_kzalloc(dev
,
94 sizeof(struct rsnd_ctu_platform_info
) * nr
,
97 dev_err(dev
, "ctu info allocation error\n");
98 goto rsnd_of_parse_ctu_end
;
101 info
->ctu_info
= ctu_info
;
102 info
->ctu_info_nr
= nr
;
104 rsnd_of_parse_ctu_end
:
109 int rsnd_ctu_probe(struct platform_device
*pdev
,
110 const struct rsnd_of_data
*of_data
,
111 struct rsnd_priv
*priv
)
113 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
114 struct device
*dev
= rsnd_priv_to_dev(priv
);
115 struct rsnd_ctu
*ctu
;
117 char name
[CTU_NAME_SIZE
];
120 /* This driver doesn't support Gen1 at this point */
121 if (rsnd_is_gen1(priv
))
124 rsnd_of_parse_ctu(pdev
, of_data
, priv
);
126 nr
= info
->ctu_info_nr
;
130 ctu
= devm_kzalloc(dev
, sizeof(*ctu
) * nr
, GFP_KERNEL
);
137 for_each_rsnd_ctu(ctu
, priv
, i
) {
139 * CTU00, CTU01, CTU02, CTU03 => CTU0
140 * CTU10, CTU11, CTU12, CTU13 => CTU1
142 snprintf(name
, CTU_NAME_SIZE
, "%s.%d",
145 clk
= devm_clk_get(dev
, name
);
149 ctu
->info
= &info
->ctu_info
[i
];
151 ret
= rsnd_mod_init(priv
, rsnd_mod_get(ctu
), &rsnd_ctu_ops
,
152 clk
, RSND_MOD_CTU
, i
);
160 void rsnd_ctu_remove(struct platform_device
*pdev
,
161 struct rsnd_priv
*priv
)
163 struct rsnd_ctu
*ctu
;
166 for_each_rsnd_ctu(ctu
, priv
, i
) {
167 rsnd_mod_quit(rsnd_mod_get(ctu
));