diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-rcar.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-rcar.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index d8361dada584..877ce97ac7a5 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -144,9 +144,10 @@ static void rcar_i2c_init(struct rcar_i2c_priv *priv) { /* reset master mode */ rcar_i2c_write(priv, ICMIER, 0); - rcar_i2c_write(priv, ICMCR, 0); + rcar_i2c_write(priv, ICMCR, MDBS); rcar_i2c_write(priv, ICMSR, 0); - rcar_i2c_write(priv, ICMAR, 0); + /* start clock */ + rcar_i2c_write(priv, ICCCR, priv->icccr); } static int rcar_i2c_bus_barrier(struct rcar_i2c_priv *priv) @@ -495,16 +496,6 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap, pm_runtime_get_sync(dev); - /*-------------- spin lock -----------------*/ - spin_lock_irqsave(&priv->lock, flags); - - rcar_i2c_init(priv); - /* start clock */ - rcar_i2c_write(priv, ICCCR, priv->icccr); - - spin_unlock_irqrestore(&priv->lock, flags); - /*-------------- spin unlock -----------------*/ - ret = rcar_i2c_bus_barrier(priv); if (ret < 0) goto out; @@ -669,6 +660,8 @@ static int rcar_i2c_probe(struct platform_device *pdev) if (IS_ERR(priv->io)) return PTR_ERR(priv->io); + rcar_i2c_init(priv); + irq = platform_get_irq(pdev, 0); init_waitqueue_head(&priv->wait); spin_lock_init(&priv->lock); |