From 65ff03f4624d12ad6c19a01a0af7385eda09e4a6 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Sun, 6 Nov 2011 22:05:25 -0800 Subject: [PATCH] ASoC: fsi: add valid data position control support 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 Signed-off-by: Mark Brown --- sound/soc/sh/fsi.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c index e620cb17cd2c..99ed61024166 100644 --- a/sound/soc/sh/fsi.c +++ b/sound/soc/sh/fsi.c @@ -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); -- 2.20.1