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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2014-07-30 23:52:26 -0700 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-07-31 20:36:33 +0100 |
| commit | 1cc7195929501b96fccce42646f1ad0ffe2598a6 (patch) | |
| tree | c95106a51b948efff338dae5be397be05ad4e937 /sound/soc/sh/rcar/src.c | |
| parent | 054cd7f4b986a941b56372b743602f7df6569c98 (diff) | |
| download | lwn-1cc7195929501b96fccce42646f1ad0ffe2598a6.tar.gz lwn-1cc7195929501b96fccce42646f1ad0ffe2598a6.zip | |
ASoC: rsnd: care audio local bus data format consistency
R-Car sound uses Audio Local Bus which uses Lch/Rch format.
This bus is used if driver uses BUSIF.
But sound data is written as Rch/Lch format in register.
This means Rch <-> Lch will be inverted.
SSIU :: BUSIF_DALIGN is used to controlling data format.
Reported-by: Jun Watanabe <jun.watanabe.ue@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/sh/rcar/src.c')
| -rw-r--r-- | sound/soc/sh/rcar/src.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c index 1ef811a26bd7..9183e0145503 100644 --- a/sound/soc/sh/rcar/src.c +++ b/sound/soc/sh/rcar/src.c @@ -110,6 +110,8 @@ int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod, struct rsnd_dai *rdai, int use_busif) { + struct rsnd_dai_stream *io = rsnd_mod_to_io(ssi_mod); + struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); int ssi_id = rsnd_mod_id(ssi_mod); /* @@ -146,10 +148,27 @@ int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod, * DMA settings for SSIU */ if (use_busif) { + u32 val = 0x76543210; + u32 mask = ~0; + rsnd_mod_write(ssi_mod, SSI_BUSIF_ADINR, rsnd_get_adinr(ssi_mod)); rsnd_mod_write(ssi_mod, SSI_BUSIF_MODE, 1); rsnd_mod_write(ssi_mod, SSI_CTRL, 0x1); + + mask <<= runtime->channels * 4; + val = val & mask; + + switch (runtime->sample_bits) { + case 16: + val |= 0x67452301 & ~mask; + break; + case 32: + val |= 0x76543210 & ~mask; + break; + } + rsnd_mod_write(ssi_mod, BUSIF_DALIGN, val); + } return 0; |