diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2017-10-01 23:48:29 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-10-04 11:50:29 +0100 |
| commit | b918f1bc7f1ce463d6fbb6ebf3db36bd302bded8 (patch) | |
| tree | fd4466372de01e2b8e3fdac5087cb59bd06ce05c /sound/soc/sh | |
| parent | d0cf7fc948159a3eab9ad2e959cce7f06f2333df (diff) | |
| download | linux-b918f1bc7f1ce463d6fbb6ebf3db36bd302bded8.tar.bz2 | |
ASoC: rsnd: DVC kctrl sets once
Same DVC 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 DVC,0 and DVC,1 kcontrol interfaces,
but these are same DVC. 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>
Diffstat (limited to 'sound/soc/sh')
| -rw-r--r-- | sound/soc/sh/rcar/dvc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/soc/sh/rcar/dvc.c b/sound/soc/sh/rcar/dvc.c index 1743ade3cc55..bb22850e8fe6 100644 --- a/sound/soc/sh/rcar/dvc.c +++ b/sound/soc/sh/rcar/dvc.c @@ -44,8 +44,11 @@ struct rsnd_dvc { struct rsnd_kctrl_cfg_s ren; /* Ramp Enable */ struct rsnd_kctrl_cfg_s rup; /* Ramp Rate Up */ struct rsnd_kctrl_cfg_s rdown; /* Ramp Rate Down */ + u32 flags; }; +#define KCTRL_INITIALIZED (1 << 0) + #define rsnd_dvc_get(priv, id) ((struct rsnd_dvc *)(priv->dvc) + id) #define rsnd_dvc_nr(priv) ((priv)->dvc_nr) @@ -254,6 +257,9 @@ static int rsnd_dvc_pcm_new(struct rsnd_mod *mod, int channels = rsnd_rdai_channels_get(rdai); int ret; + if (rsnd_flags_has(dvc, KCTRL_INITIALIZED)) + return 0; + /* Volume */ ret = rsnd_kctrl_new_m(mod, io, rtd, is_play ? @@ -307,6 +313,8 @@ static int rsnd_dvc_pcm_new(struct rsnd_mod *mod, if (ret < 0) return ret; + rsnd_flags_set(dvc, KCTRL_INITIALIZED); + return 0; } |