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ASoC: rsnd: CTU kctrl sets once

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Same CTU might be used few times if system/platform is using MIX.
For example below case.

	DAI0 playback = <&src0 &ctu02 &mix0 &dvc0 &ssi0>;
	DAI1 playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;

This case, ALSA will have CTU,0 and CTU,1 kcontrol interfaces,
but these are same CTU. This is confusing.
This patch adds new flags and avoid such case.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2017-10-01 23:48:46 +00:00 committed by Mark Brown
parent b918f1bc7f
commit 99dc79d060
1 changed files with 8 additions and 0 deletions
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8
sound/soc/sh/rcar/ctu.c
View file

@ -81,8 +81,11 @@ struct rsnd_ctu {
struct rsnd_kctrl_cfg_m sv3;
struct rsnd_kctrl_cfg_s reset;
int channels;
u32 flags;
};
#define KCTRL_INITIALIZED (1 << 0)
#define rsnd_ctu_nr(priv) ((priv)->ctu_nr)
#define for_each_rsnd_ctu(pos, priv, i) \
for ((i) = 0; \
@ -277,6 +280,9 @@ static int rsnd_ctu_pcm_new(struct rsnd_mod *mod,
struct rsnd_ctu *ctu = rsnd_mod_to_ctu(mod);
int ret;
if (rsnd_flags_has(ctu, KCTRL_INITIALIZED))
return 0;
/* CTU Pass */
ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU Pass",
rsnd_kctrl_accept_anytime,
@ -326,6 +332,8 @@ static int rsnd_ctu_pcm_new(struct rsnd_mod *mod,
rsnd_ctu_value_reset,
&ctu->reset, 1);
rsnd_flags_set(ctu, KCTRL_INITIALIZED);
return ret;
}