diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2015-10-26 08:38:26 (GMT) |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-11-16 10:09:29 (GMT) |
| commit | 232c00b6e55558c216cbf50358549a1967ee1419 (patch) | |
| tree | 319673419b3a2aad8e89f73457db56607a7de68b /sound/soc/sh/rcar/dma.c | |
| parent | 8005c49d9aea74d382f474ce11afbbc7d7130bec (diff) | |
| download | linux-232c00b6e55558c216cbf50358549a1967ee1419.tar.xz | |
ASoC: rsnd: DMA become SSI/SRC member
Renesas sound needs many devices
(SSI/SSIU/SRC/CTU/MIX/DVC/CMD/AudioDMAC/AudioDMACpp).
SSI/SRC/CTU/MIX/DVC are implemented as module.
SSI parent, SSIU are implemented as part of SSI
CMD is implemented as part of CTU/MIX/DVC
AudioDMAC/AudioDMACpp are implemented as part of SSI/SRC
It is nice sense that these all devices are implemented as mod.
Current rsnd_mod is member of rsnd_mod. But the DMA user is only
SSI/SRC. This DMA will be implemented as module. As 1st step, DMA
become SSI/SRC member by this patch.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sh/rcar/dma.c')
| -rw-r--r-- | sound/soc/sh/rcar/dma.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c index 5d084d0..923120c 100644 --- a/sound/soc/sh/rcar/dma.c +++ b/sound/soc/sh/rcar/dma.c @@ -606,14 +606,17 @@ void rsnd_dma_quit(struct rsnd_dai_stream *io, struct rsnd_dma *dma) dma->ops->quit(io, dma); } -int rsnd_dma_init(struct rsnd_dai_stream *io, struct rsnd_dma *dma, int id) +struct rsnd_dma *rsnd_dma_init(struct rsnd_dai_stream *io, + struct rsnd_mod *mod, int id) { struct rsnd_mod *mod_from = NULL; struct rsnd_mod *mod_to = NULL; struct rsnd_priv *priv = rsnd_io_to_priv(io); struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv); + struct rsnd_dma *dma; struct device *dev = rsnd_priv_to_dev(priv); int is_play = rsnd_io_is_play(io); + int ret; /* * DMA failed. try to PIO mode @@ -622,7 +625,13 @@ int rsnd_dma_init(struct rsnd_dai_stream *io, struct rsnd_dma *dma, int id) * rsnd_rdai_continuance_probe() */ if (!dmac) - return -EAGAIN; + return ERR_PTR(-EAGAIN); + + dma = devm_kzalloc(dev, sizeof(*dma), GFP_KERNEL); + if (!dma) + return ERR_PTR(-ENOMEM); + + dma->mod = mod; rsnd_dma_of_path(dma, io, is_play, &mod_from, &mod_to); @@ -644,7 +653,11 @@ int rsnd_dma_init(struct rsnd_dai_stream *io, struct rsnd_dma *dma, int id) rsnd_mod_name(mod_from), rsnd_mod_id(mod_from), rsnd_mod_name(mod_to), rsnd_mod_id(mod_to)); - return dma->ops->init(io, dma, id, mod_from, mod_to); + ret = dma->ops->init(io, dma, id, mod_from, mod_to); + if (ret < 0) + return ERR_PTR(ret); + + return dma; } int rsnd_dma_probe(struct platform_device *pdev, |