diff mbox

[9/9,v4] ASoC: fsi: Configure DMA slave settings

Message ID 878ugmtn0b.wl%kuninori.morimoto.gx@renesas.com (mailing list archive)
State Superseded
Headers show

Commit Message

Kuninori Morimoto Jan. 29, 2015, 1:04 a.m. UTC 
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

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>
---
v3 -> v4

 - no change

 sound/soc/sh/fsi.c |   15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

Comments

Mark Brown Jan. 29, 2015, 11:35 a.m. UTC | #1 
On Thu, Jan 29, 2015 at 01:04:09AM +0000, Kuninori Morimoto wrote:
> From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
> 
> 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

Acked-by: Mark Brown <broonie@kernel.org>
diff mbox

Patch

diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c
index c4eb234..d59c9f8 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;
@@ -1377,9 +1378,15 @@  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) {
@@ -1949,6 +1956,7 @@  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);
@@ -1961,6 +1969,7 @@  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);