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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2015-02-17 01:48:19 +0000
committerVinod Koul <vinod.koul@intel.com>2015-02-23 16:13:23 +0530
commit7c6cc8f2012f4146b05b8ec7238f98884100db8c (patch)
tree6f279ed38fea7ff688c93727d2febe25afd0a669 /sound
parent5b7cdc8068e3f02ff4c6ef75bd7398af244869d4 (diff)
downloadop-kernel-dev-7c6cc8f2012f4146b05b8ec7238f98884100db8c.zip
op-kernel-dev-7c6cc8f2012f4146b05b8ec7238f98884100db8c.tar.gz
ASoC: fsi: Configure DMA slave settings
Current FSI driver is assuming that dst_addr/src_addr of DMAEngine will be set by platform data. But it should be set via dmaengine_slave_config(). Special thanks to Arnd Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/sh/fsi.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c
index dc28b03..bb20550 100644
--- a/sound/soc/sh/fsi.c
+++ b/sound/soc/sh/fsi.c
@@ -250,6 +250,7 @@ struct fsi_clk {
struct fsi_priv {
void __iomem *base;
+ phys_addr_t phys;
struct fsi_master *master;
struct fsi_stream playback;
@@ -1374,9 +1375,15 @@ static int fsi_dma_probe(struct fsi_priv *fsi, struct fsi_stream *io, struct dev
struct dma_slave_config cfg = {};
int ret;
- cfg.dst_addr = 0; /* use default addr */
- cfg.src_addr = 0; /* use default addr */
- cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
+ if (is_play) {
+ cfg.dst_addr = fsi->phys + REG_DODT;
+ cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ cfg.direction = DMA_MEM_TO_DEV;
+ } else {
+ cfg.src_addr = fsi->phys + REG_DIDT;
+ cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ cfg.direction = DMA_DEV_TO_MEM;
+ }
ret = dmaengine_slave_config(io->chan, &cfg);
if (ret < 0) {
@@ -1940,6 +1947,7 @@ static int fsi_probe(struct platform_device *pdev)
/* FSI A setting */
fsi = &master->fsia;
fsi->base = master->base;
+ fsi->phys = res->start;
fsi->master = master;
fsi_port_info_init(fsi, &info.port_a);
fsi_handler_init(fsi, &info.port_a);
@@ -1952,6 +1960,7 @@ static int fsi_probe(struct platform_device *pdev)
/* FSI B setting */
fsi = &master->fsib;
fsi->base = master->base + 0x40;
+ fsi->phys = res->start + 0x40;
fsi->master = master;
fsi_port_info_init(fsi, &info.port_b);
fsi_handler_init(fsi, &info.port_b);
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