diff options
| -rw-r--r-- | drivers/i2c/busses/i2c-rcar.c | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index 07256a6b56f..e16784124a4 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -36,7 +36,6 @@ #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/slab.h> -#include <linux/spinlock.h> /* register offsets */ #define ICSCR 0x00 /* slave ctrl */ @@ -110,7 +109,6 @@ struct rcar_i2c_priv { struct i2c_msg *msg; struct clk *clk; - spinlock_t lock; wait_queue_head_t wait; int pos; @@ -394,9 +392,6 @@ static irqreturn_t rcar_i2c_irq(int irq, void *ptr) struct device *dev = rcar_i2c_priv_to_dev(priv); u32 msr; - /*-------------- spin lock -----------------*/ - spin_lock(&priv->lock); - msr = rcar_i2c_read(priv, ICMSR); /* @@ -450,9 +445,6 @@ out: wake_up(&priv->wait); } - spin_unlock(&priv->lock); - /*-------------- spin unlock -----------------*/ - return IRQ_HANDLED; } @@ -462,21 +454,14 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap, { struct rcar_i2c_priv *priv = i2c_get_adapdata(adap); struct device *dev = rcar_i2c_priv_to_dev(priv); - unsigned long flags; int i, ret, timeout; 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; @@ -488,9 +473,6 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap, break; } - /*-------------- spin lock -----------------*/ - spin_lock_irqsave(&priv->lock, flags); - /* init each data */ priv->msg = &msgs[i]; priv->pos = 0; @@ -500,9 +482,6 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap, ret = rcar_i2c_prepare_msg(priv); - spin_unlock_irqrestore(&priv->lock, flags); - /*-------------- spin unlock -----------------*/ - if (ret < 0) break; @@ -614,7 +593,6 @@ static int rcar_i2c_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); init_waitqueue_head(&priv->wait); - spin_lock_init(&priv->lock); adap = &priv->adap; adap->nr = pdev->id; |