Bit operation for fsi_master should be done inside master lock. But soft-reset/interrupt operation were outside of it. This patch modify this problem. It still allow to INT_ST outside-operation on fsi_interrupt, but it is not problem. Because this register doesn't need the bit operation.
Signed-off-by: Kuninori Morimoto morimoto.kuninori@renesas.com --- sound/soc/sh/fsi.c | 22 +++++++++++----------- 1 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c index 993abb7..db91349 100644 --- a/sound/soc/sh/fsi.c +++ b/sound/soc/sh/fsi.c @@ -79,6 +79,12 @@ #define INT_A_IN (1 << 4) #define INT_A_OUT (1 << 0)
+/* SOFT_RST */ +#define PBSR (1 << 12) /* Port B Software Reset */ +#define PASR (1 << 8) /* Port A Software Reset */ +#define IR (1 << 4) /* Interrupt Reset */ +#define FSISR (1 << 0) /* Software Reset */ + #define FSI_RATES SNDRV_PCM_RATE_8000_96000
#define FSI_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE) @@ -372,18 +378,13 @@ static void fsi_irq_init(struct fsi_priv *fsi, int is_play)
static void fsi_soft_all_reset(struct fsi_master *master) { - u32 status = fsi_master_read(master, SOFT_RST); - /* port AB reset */ - status &= 0x000000ff; - fsi_master_write(master, SOFT_RST, status); + fsi_master_mask_set(master, SOFT_RST, PASR | PBSR, 0); mdelay(10);
/* soft reset */ - status &= 0x000000f0; - fsi_master_write(master, SOFT_RST, status); - status |= 0x00000001; - fsi_master_write(master, SOFT_RST, status); + fsi_master_mask_set(master, SOFT_RST, FSISR, 0); + fsi_master_mask_set(master, SOFT_RST, FSISR, FSISR); mdelay(10); }
@@ -558,12 +559,11 @@ static int fsi_data_pop(struct fsi_priv *fsi, int startup) static irqreturn_t fsi_interrupt(int irq, void *data) { struct fsi_master *master = data; - u32 status = fsi_master_read(master, SOFT_RST) & ~0x00000010; u32 int_st = fsi_master_read(master, INT_ST);
/* clear irq status */ - fsi_master_write(master, SOFT_RST, status); - fsi_master_write(master, SOFT_RST, status | 0x00000010); + fsi_master_mask_set(master, SOFT_RST, IR, 0); + fsi_master_mask_set(master, SOFT_RST, IR, IR);
if (int_st & INT_A_OUT) fsi_data_push(&master->fsia, 0);