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ASoC: fsi: add valid data position control support

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FSI2 can control valid data position, like
package in front/back or stream  mode (16bit x 2).
But current fsi driver is assuming it was in-back.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Kuninori Morimoto 2011-11-06 22:05:25 -08:00 committed by Mark Brown
parent 202113912b
commit 65ff03f462
1 changed files with 15 additions and 0 deletions
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15
sound/soc/sh/fsi.c
View file

@ -32,7 +32,9 @@
#define REG_DIDT 0x0020
#define REG_DODT 0x0024
#define REG_MUTE_ST 0x0028
#define REG_OUT_DMAC 0x002C
#define REG_OUT_SEL 0x0030
#define REG_IN_DMAC 0x0038
/* master register */
#define MST_CLK_RST 0x0210
@ -886,6 +888,8 @@ static int fsi_hw_startup(struct fsi_priv *fsi,
int is_play,
struct device *dev)
{
struct fsi_master *master = fsi_get_master(fsi);
int fsi_ver = master->core->ver;
u32 flags = fsi_get_info_flags(fsi);
u32 data = 0;
@ -920,6 +924,17 @@ static int fsi_hw_startup(struct fsi_priv *fsi,
fsi_reg_mask_set(fsi, OUT_SEL, DMMD, DMMD);
}
/*
* FIXME
*
* FSI driver assumed that data package is in-back.
* FSI2 chip can select it.
*/
if (fsi_ver >= 2) {
fsi_reg_write(fsi, OUT_DMAC, (1 << 4));
fsi_reg_write(fsi, IN_DMAC, (1 << 4));
}
/* irq clear */
fsi_irq_disable(fsi, is_play);
fsi_irq_clear_status(fsi);