1 files changed, 44 insertions, 44 deletions

diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 1fac4e233133..f5efece9b166 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -109,7 +109,8 @@ static inline int s3c24xx_i2c_is2440(struct s3c24xx_i2c *i2c)
  * the default if there is none
 */
 
-static inline struct s3c2410_platform_i2c *s3c24xx_i2c_get_platformdata(struct device *dev)
+static inline struct s3c2410_platform_i2c *
+s3c24xx_i2c_get_platformdata(struct device *dev)
 {
         if (dev->platform_data != NULL)
                 return (struct s3c2410_platform_i2c *)dev->platform_data;
@@ -129,7 +130,7 @@ static inline void s3c24xx_i2c_master_complete(struct s3c24xx_i2c *i2c, int ret)
 
         i2c->msg_ptr = 0;
         i2c->msg = NULL;
-        i2c->msg_idx ++;
+        i2c->msg_idx++;
         i2c->msg_num = 0;
         if (ret)
                 i2c->msg_idx = ret;
@@ -140,19 +141,17 @@ static inline void s3c24xx_i2c_master_complete(struct s3c24xx_i2c *i2c, int ret)
 static inline void s3c24xx_i2c_disable_ack(struct s3c24xx_i2c *i2c)
 {
         unsigned long tmp;
-        
+
         tmp = readl(i2c->regs + S3C2410_IICCON);
         writel(tmp & ~S3C2410_IICCON_ACKEN, i2c->regs + S3C2410_IICCON);
-
 }
 
 static inline void s3c24xx_i2c_enable_ack(struct s3c24xx_i2c *i2c)
 {
         unsigned long tmp;
-        
+
         tmp = readl(i2c->regs + S3C2410_IICCON);
         writel(tmp | S3C2410_IICCON_ACKEN, i2c->regs + S3C2410_IICCON);
-
 }
 
 /* irq enable/disable functions */
@@ -160,7 +159,7 @@ static inline void s3c24xx_i2c_enable_ack(struct s3c24xx_i2c *i2c)
 static inline void s3c24xx_i2c_disable_irq(struct s3c24xx_i2c *i2c)
 {
         unsigned long tmp;
-        
+
         tmp = readl(i2c->regs + S3C2410_IICCON);
         writel(tmp & ~S3C2410_IICCON_IRQEN, i2c->regs + S3C2410_IICCON);
 }
@@ -168,7 +167,7 @@ static inline void s3c24xx_i2c_disable_irq(struct s3c24xx_i2c *i2c)
 static inline void s3c24xx_i2c_enable_irq(struct s3c24xx_i2c *i2c)
 {
         unsigned long tmp;
-        
+
         tmp = readl(i2c->regs + S3C2410_IICCON);
         writel(tmp | S3C2410_IICCON_IRQEN, i2c->regs + S3C2410_IICCON);
 }
@@ -176,10 +175,10 @@ static inline void s3c24xx_i2c_enable_irq(struct s3c24xx_i2c *i2c)
 
 /* s3c24xx_i2c_message_start
  *
- * put the start of a message onto the bus 
+ * put the start of a message onto the bus
 */
 
-static void s3c24xx_i2c_message_start(struct s3c24xx_i2c *i2c, 
+static void s3c24xx_i2c_message_start(struct s3c24xx_i2c *i2c,
                                       struct i2c_msg *msg)
 {
         unsigned int addr = (msg->addr & 0x7f) << 1;
@@ -198,15 +197,15 @@ static void s3c24xx_i2c_message_start(struct s3c24xx_i2c *i2c,
         if (msg->flags & I2C_M_REV_DIR_ADDR)
                 addr ^= 1;
 
-        // todo - check for wether ack wanted or not
+        /* todo - check for wether ack wanted or not */
         s3c24xx_i2c_enable_ack(i2c);
 
         iiccon = readl(i2c->regs + S3C2410_IICCON);
         writel(stat, i2c->regs + S3C2410_IICSTAT);
-        
+
         dev_dbg(i2c->dev, "START: %08lx to IICSTAT, %02x to DS\n", stat, addr);
         writeb(addr, i2c->regs + S3C2410_IICDS);
-        
+
         /* delay here to ensure the data byte has gotten onto the bus
          * before the transaction is started */
 
@@ -214,8 +213,8 @@ static void s3c24xx_i2c_message_start(struct s3c24xx_i2c *i2c,
 
         dev_dbg(i2c->dev, "iiccon, %08lx\n", iiccon);
         writel(iiccon, i2c->regs + S3C2410_IICCON);
-        
-        stat |=  S3C2410_IICSTAT_START;
+
+        stat |= S3C2410_IICSTAT_START;
         writel(stat, i2c->regs + S3C2410_IICSTAT);
 }
 
@@ -226,11 +225,11 @@ static inline void s3c24xx_i2c_stop(struct s3c24xx_i2c *i2c, int ret)
         dev_dbg(i2c->dev, "STOP\n");
 
         /* stop the transfer */
-        iicstat &= ~ S3C2410_IICSTAT_START;
+        iicstat &= ~S3C2410_IICSTAT_START;
         writel(iicstat, i2c->regs + S3C2410_IICSTAT);
-        
+
         i2c->state = STATE_STOP;
-        
+
         s3c24xx_i2c_master_complete(i2c, ret);
         s3c24xx_i2c_disable_irq(i2c);
 }
@@ -240,7 +239,7 @@ static inline void s3c24xx_i2c_stop(struct s3c24xx_i2c *i2c, int ret)
 
 /* is_lastmsg()
  *
- * returns TRUE if the current message is the last in the set 
+ * returns TRUE if the current message is the last in the set
 */
 
 static inline int is_lastmsg(struct s3c24xx_i2c *i2c)
@@ -288,14 +287,14 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
 
         case STATE_STOP:
                 dev_err(i2c->dev, "%s: called in STATE_STOP\n", __func__);
-                s3c24xx_i2c_disable_irq(i2c);           
+                s3c24xx_i2c_disable_irq(i2c);
                 goto out_ack;
 
         case STATE_START:
                 /* last thing we did was send a start condition on the
                  * bus, or started a new i2c message
                  */
-                
+
                 if (iicstat & S3C2410_IICSTAT_LASTBIT &&
                     !(i2c->msg->flags & I2C_M_IGNORE_NAK)) {
                         /* ack was not received... */
@@ -321,7 +320,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
                 if (i2c->state == STATE_READ)
                         goto prepare_read;
 
-                /* fall through to the write state, as we will need to 
+                /* fall through to the write state, as we will need to
                  * send a byte as well */
 
         case STATE_WRITE:
@@ -338,7 +337,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
                         }
                 }
 
-        retry_write:
+ retry_write:
 
                 if (!is_msgend(i2c)) {
                         byte = i2c->msg->buf[i2c->msg_ptr++];
@@ -358,9 +357,9 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
                         dev_dbg(i2c->dev, "WRITE: Next Message\n");
 
                         i2c->msg_ptr = 0;
-                        i2c->msg_idx ++;
+                        i2c->msg_idx++;
                         i2c->msg++;
-                        
+
                         /* check to see if we need to do another message */
                         if (i2c->msg->flags & I2C_M_NOSTART) {
 
@@ -374,7 +373,6 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
 
                                 goto retry_write;
                         } else {
-                        
                                 /* send the new start */
                                 s3c24xx_i2c_message_start(i2c, i2c->msg);
                                 i2c->state = STATE_START;
@@ -388,7 +386,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
                 break;
 
         case STATE_READ:
-                /* we have a byte of data in the data register, do 
+                /* we have a byte of data in the data register, do
                  * something with it, and then work out wether we are
                  * going to do any more read/write
                  */
@@ -396,13 +394,13 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
                 byte = readb(i2c->regs + S3C2410_IICDS);
                 i2c->msg->buf[i2c->msg_ptr++] = byte;
 
-        prepare_read:
+ prepare_read:
                 if (is_msglast(i2c)) {
                         /* last byte of buffer */
 
                         if (is_lastmsg(i2c))
                                 s3c24xx_i2c_disable_ack(i2c);
-                        
+
                 } else if (is_msgend(i2c)) {
                         /* ok, we've read the entire buffer, see if there
                          * is anything else we need to do */
@@ -428,7 +426,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
         /* acknowlegde the IRQ and get back on with the work */
 
  out_ack:
-        tmp = readl(i2c->regs + S3C2410_IICCON);        
+        tmp = readl(i2c->regs + S3C2410_IICCON);
         tmp &= ~S3C2410_IICCON_IRQPEND;
         writel(tmp, i2c->regs + S3C2410_IICCON);
  out:
@@ -449,19 +447,19 @@ static irqreturn_t s3c24xx_i2c_irq(int irqno, void *dev_id)
         status = readl(i2c->regs + S3C2410_IICSTAT);
 
         if (status & S3C2410_IICSTAT_ARBITR) {
-                // deal with arbitration loss
+                /* deal with arbitration loss */
                 dev_err(i2c->dev, "deal with arbitration loss\n");
         }
 
         if (i2c->state == STATE_IDLE) {
                 dev_dbg(i2c->dev, "IRQ: error i2c->state == IDLE\n");
 
-                tmp = readl(i2c->regs + S3C2410_IICCON);        
+                tmp = readl(i2c->regs + S3C2410_IICCON);
                 tmp &= ~S3C2410_IICCON_IRQPEND;
                 writel(tmp, i2c->regs +  S3C2410_IICCON);
                 goto out;
         }
-        
+
         /* pretty much this leaves us with the fact that we've
          * transmitted or received whatever byte we last sent */
 
@@ -484,7 +482,7 @@ static int s3c24xx_i2c_set_master(struct s3c24xx_i2c *i2c)
 
         while (timeout-- > 0) {
                 iicstat = readl(i2c->regs + S3C2410_IICSTAT);
-                
+
                 if (!(iicstat & S3C2410_IICSTAT_BUSBUSY))
                         return 0;
 
@@ -502,7 +500,8 @@ static int s3c24xx_i2c_set_master(struct s3c24xx_i2c *i2c)
  * this starts an i2c transfer
 */
 
-static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c, struct i2c_msg *msgs, int num)
+static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c,
+                              struct i2c_msg *msgs, int num)
 {
         unsigned long timeout;
         int ret;
@@ -528,12 +527,12 @@ static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c, struct i2c_msg *msgs, int
         s3c24xx_i2c_enable_irq(i2c);
         s3c24xx_i2c_message_start(i2c, msgs);
         spin_unlock_irq(&i2c->lock);
-        
+
         timeout = wait_event_timeout(i2c->wait, i2c->msg_num == 0, HZ * 5);
 
         ret = i2c->msg_idx;
 
-        /* having these next two as dev_err() makes life very 
+        /* having these next two as dev_err() makes life very
          * noisy when doing an i2cdetect */
 
         if (timeout == 0)
@@ -642,7 +641,7 @@ static inline int freq_acceptable(unsigned int freq, unsigned int wanted)
 {
         int diff = freq - wanted;
 
-        return (diff >= -2 && diff <= 2);
+        return diff >= -2 && diff <= 2;
 }
 
 /* s3c24xx_i2c_clockrate
@@ -665,7 +664,7 @@ static int s3c24xx_i2c_clockrate(struct s3c24xx_i2c *i2c, unsigned int *got)
 
         pdata = s3c24xx_i2c_get_platformdata(i2c->adap.dev.parent);
         clkin /= 1000;          /* clkin now in KHz */
-     
+
         dev_dbg(i2c->dev, "pdata %p, freq %lu %lu..%lu\n",
                  pdata, pdata->bus_freq, pdata->min_freq, pdata->max_freq);
 
@@ -773,7 +772,7 @@ static inline void s3c24xx_i2c_deregister_cpufreq(struct s3c24xx_i2c *i2c)
 
 /* s3c24xx_i2c_init
  *
- * initialise the controller, set the IO lines and frequency 
+ * initialise the controller, set the IO lines and frequency
 */
 
 static int s3c24xx_i2c_init(struct s3c24xx_i2c *i2c)
@@ -792,7 +791,7 @@ static int s3c24xx_i2c_init(struct s3c24xx_i2c *i2c)
         s3c2410_gpio_cfgpin(S3C2410_GPE14, S3C2410_GPE14_IICSCL);
 
         /* write slave address */
-        
+
         writeb(pdata->slave_addr, i2c->regs + S3C2410_IICADD);
 
         dev_info(i2c->dev, "slave address 0x%02x\n", pdata->slave_addr);
@@ -877,7 +876,8 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
                 goto err_ioarea;
         }
 
-        dev_dbg(&pdev->dev, "registers %p (%p, %p)\n", i2c->regs, i2c->ioarea, res);
+        dev_dbg(&pdev->dev, "registers %p (%p, %p)\n",
+                i2c->regs, i2c->ioarea, res);
 
         /* setup info block for the i2c core */
 
@@ -891,7 +891,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
                 goto err_iomap;
 
         /* find the IRQ for this unit (note, this relies on the init call to
-         * ensure no current IRQs pending 
+         * ensure no current IRQs pending
          */
 
         res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
@@ -910,7 +910,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
         }
 
         i2c->irq = res;
-                
+
         dev_dbg(&pdev->dev, "irq resource %p (%lu)\n", res,
                 (unsigned long)res->start);