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"
19 #define rsnd_ctu_nr(priv) ((priv)->ctu_nr)
20 #define for_each_rsnd_ctu(pos, priv, i) \
22 ((i) < rsnd_ctu_nr(priv)) && \
23 ((pos) = (struct rsnd_ctu *)(priv)->ctu + i); \
26 #define rsnd_ctu_get(priv, id) ((struct rsnd_ctu *)(priv->ctu) + id)
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_probe_(struct rsnd_mod
*mod
,
35 struct rsnd_dai_stream
*io
,
36 struct rsnd_priv
*priv
)
38 return rsnd_cmd_attach(io
, rsnd_mod_id(mod
) / 4);
41 static int rsnd_ctu_init(struct rsnd_mod
*mod
,
42 struct rsnd_dai_stream
*io
,
43 struct rsnd_priv
*priv
)
45 rsnd_mod_power_on(mod
);
47 rsnd_ctu_initialize_lock(mod
);
49 rsnd_mod_write(mod
, CTU_ADINR
, rsnd_get_adinr_chan(mod
, io
));
51 rsnd_ctu_initialize_unlock(mod
);
56 static int rsnd_ctu_quit(struct rsnd_mod
*mod
,
57 struct rsnd_dai_stream
*io
,
58 struct rsnd_priv
*priv
)
60 rsnd_mod_power_off(mod
);
65 static struct rsnd_mod_ops rsnd_ctu_ops
= {
67 .probe
= rsnd_ctu_probe_
,
68 .init
= rsnd_ctu_init
,
69 .quit
= rsnd_ctu_quit
,
72 struct rsnd_mod
*rsnd_ctu_mod_get(struct rsnd_priv
*priv
, int id
)
74 if (WARN_ON(id
< 0 || id
>= rsnd_ctu_nr(priv
)))
77 return rsnd_mod_get(rsnd_ctu_get(priv
, id
));
80 int rsnd_ctu_probe(struct rsnd_priv
*priv
)
82 struct device_node
*node
;
83 struct device_node
*np
;
84 struct device
*dev
= rsnd_priv_to_dev(priv
);
87 char name
[CTU_NAME_SIZE
];
90 /* This driver doesn't support Gen1 at this point */
91 if (rsnd_is_gen1(priv
))
94 node
= rsnd_ctu_of_node(priv
);
96 return 0; /* not used is not error */
98 nr
= of_get_child_count(node
);
101 goto rsnd_ctu_probe_done
;
104 ctu
= devm_kzalloc(dev
, sizeof(*ctu
) * nr
, GFP_KERNEL
);
107 goto rsnd_ctu_probe_done
;
115 for_each_child_of_node(node
, np
) {
116 ctu
= rsnd_ctu_get(priv
, i
);
119 * CTU00, CTU01, CTU02, CTU03 => CTU0
120 * CTU10, CTU11, CTU12, CTU13 => CTU1
122 snprintf(name
, CTU_NAME_SIZE
, "%s.%d",
125 clk
= devm_clk_get(dev
, name
);
128 goto rsnd_ctu_probe_done
;
131 ret
= rsnd_mod_init(priv
, rsnd_mod_get(ctu
), &rsnd_ctu_ops
,
132 clk
, RSND_MOD_CTU
, i
);
134 goto rsnd_ctu_probe_done
;
146 void rsnd_ctu_remove(struct rsnd_priv
*priv
)
148 struct rsnd_ctu
*ctu
;
151 for_each_rsnd_ctu(ctu
, priv
, i
) {
152 rsnd_mod_quit(rsnd_mod_get(ctu
));