i2c-ibm_iic: Whitespace cleanup

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 95 insertions, 95 deletions

diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index 9b43ff7270d0..d0cf39b8c1f1 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -6,7 +6,7 @@
  * Copyright (c) 2003, 2004 Zultys Technologies.
  * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
  *
- * Based on original work by 
+ * Based on original work by
  *      Ian DaSilva  <idasilva@mvista.com>
  *      Armin Kuster <akuster@mvista.com>
  *      Matt Porter  <mporter@mvista.com>
@@ -86,8 +86,8 @@ static void dump_iic_regs(const char* header, struct ibm_iic_private* dev)
                KERN_DEBUG "  sts      = 0x%02x, extsts = 0x%02x\n"
                KERN_DEBUG "  clkdiv   = 0x%02x, xfrcnt = 0x%02x\n"
                KERN_DEBUG "  xtcntlss = 0x%02x, directcntl = 0x%02x\n",
-                in_8(&iic->cntl), in_8(&iic->mdcntl), in_8(&iic->sts), 
-                in_8(&iic->extsts), in_8(&iic->clkdiv), in_8(&iic->xfrcnt), 
+                in_8(&iic->cntl), in_8(&iic->mdcntl), in_8(&iic->sts),
+                in_8(&iic->extsts), in_8(&iic->clkdiv), in_8(&iic->xfrcnt),
                 in_8(&iic->xtcntlss), in_8(&iic->directcntl));
 }
 #  define DUMP_REGS(h,dev)      dump_iic_regs((h),(dev))
@@ -125,7 +125,7 @@ static inline void iic_interrupt_mode(struct ibm_iic_private* dev, int enable)
 {
         out_8(&dev->vaddr->intmsk, enable ? INTRMSK_EIMTC : 0);
 }
- 
+
 /*
  * Initialize IIC interface.
  */
@@ -134,7 +134,7 @@ static void iic_dev_init(struct ibm_iic_private* dev)
         volatile struct iic_regs __iomem *iic = dev->vaddr;
 
         DBG("%d: init\n", dev->idx);
-        
+
         /* Clear master address */
         out_8(&iic->lmadr, 0);
         out_8(&iic->hmadr, 0);
@@ -160,7 +160,7 @@ static void iic_dev_init(struct ibm_iic_private* dev)
 
         /* Clear control register */
         out_8(&iic->cntl, 0);
-        
+
         /* Enable interrupts if possible */
         iic_interrupt_mode(dev, dev->irq >= 0);
 
@@ -171,7 +171,7 @@ static void iic_dev_init(struct ibm_iic_private* dev)
         DUMP_REGS("iic_init", dev);
 }
 
-/* 
+/*
  * Reset IIC interface
  */
 static void iic_dev_reset(struct ibm_iic_private* dev)
@@ -179,42 +179,42 @@ static void iic_dev_reset(struct ibm_iic_private* dev)
         volatile struct iic_regs __iomem *iic = dev->vaddr;
         int i;
         u8 dc;
-        
+
         DBG("%d: soft reset\n", dev->idx);
         DUMP_REGS("reset", dev);
-        
+
         /* Place chip in the reset state */
         out_8(&iic->xtcntlss, XTCNTLSS_SRST);
-        
+
         /* Check if bus is free */
-        dc = in_8(&iic->directcntl);    
+        dc = in_8(&iic->directcntl);
         if (!DIRCTNL_FREE(dc)){
                 DBG("%d: trying to regain bus control\n", dev->idx);
-        
+
                 /* Try to set bus free state */
-                out_8(&iic->directcntl, DIRCNTL_SDAC | DIRCNTL_SCC);    
-        
+                out_8(&iic->directcntl, DIRCNTL_SDAC | DIRCNTL_SCC);
+
                 /* Wait until we regain bus control */
                 for (i = 0; i < 100; ++i){
                         dc = in_8(&iic->directcntl);
                         if (DIRCTNL_FREE(dc))
                                 break;
-                        
+
                         /* Toggle SCL line */
                         dc ^= DIRCNTL_SCC;
                         out_8(&iic->directcntl, dc);
                         udelay(10);
                         dc ^= DIRCNTL_SCC;
                         out_8(&iic->directcntl, dc);
-                        
+
                         /* be nice */
                         cond_resched();
                 }
         }
-        
+
         /* Remove reset */
         out_8(&iic->xtcntlss, 0);
-        
+
         /* Reinitialize interface */
         iic_dev_init(dev);
 }
@@ -324,14 +324,14 @@ static irqreturn_t iic_handler(int irq, void *dev_id)
 {
         struct ibm_iic_private* dev = (struct ibm_iic_private*)dev_id;
         volatile struct iic_regs __iomem *iic = dev->vaddr;
-        
-        DBG2("%d: irq handler, STS = 0x%02x, EXTSTS = 0x%02x\n", 
+
+        DBG2("%d: irq handler, STS = 0x%02x, EXTSTS = 0x%02x\n",
              dev->idx, in_8(&iic->sts), in_8(&iic->extsts));
-        
+
         /* Acknowledge IRQ and wakeup iic_wait_for_tc */
         out_8(&iic->sts, STS_IRQA | STS_SCMP);
         wake_up_interruptible(&dev->wq);
-        
+
         return IRQ_HANDLED;
 }
 
@@ -341,19 +341,19 @@ static irqreturn_t iic_handler(int irq, void *dev_id)
  */
 static int iic_xfer_result(struct ibm_iic_private* dev)
 {
-        volatile struct iic_regs __iomem *iic = dev->vaddr;     
-        
+        volatile struct iic_regs __iomem *iic = dev->vaddr;
+
         if (unlikely(in_8(&iic->sts) & STS_ERR)){
-                DBG("%d: xfer error, EXTSTS = 0x%02x\n", dev->idx, 
+                DBG("%d: xfer error, EXTSTS = 0x%02x\n", dev->idx,
                         in_8(&iic->extsts));
-                                
+
                 /* Clear errors and possible pending IRQs */
-                out_8(&iic->extsts, EXTSTS_IRQP | EXTSTS_IRQD | 
+                out_8(&iic->extsts, EXTSTS_IRQP | EXTSTS_IRQD |
                         EXTSTS_LA | EXTSTS_ICT | EXTSTS_XFRA);
-                        
+
                 /* Flush master data buffer */
                 out_8(&iic->mdcntl, in_8(&iic->mdcntl) | MDCNTL_FMDB);
-                
+
                 /* Is bus free?
                  * If error happened during combined xfer
                  * IIC interface is usually stuck in some strange
@@ -376,11 +376,11 @@ static void iic_abort_xfer(struct ibm_iic_private* dev)
 {
         volatile struct iic_regs __iomem *iic = dev->vaddr;
         unsigned long x;
-        
+
         DBG("%d: iic_abort_xfer\n", dev->idx);
-        
+
         out_8(&iic->cntl, CNTL_HMT);
-        
+
         /*
          * Wait for the abort command to complete.
          * It's not worth to be optimized, just poll (timeout >= 1 tick)
@@ -405,13 +405,13 @@ static void iic_abort_xfer(struct ibm_iic_private* dev)
  * Returns the number of transferred bytes or error (<0)
  */
 static int iic_wait_for_tc(struct ibm_iic_private* dev){
-        
+
         volatile struct iic_regs __iomem *iic = dev->vaddr;
         int ret = 0;
-        
+
         if (dev->irq >= 0){
                 /* Interrupt mode */
-                ret = wait_event_interruptible_timeout(dev->wq, 
+                ret = wait_event_interruptible_timeout(dev->wq,
                         !(in_8(&iic->sts) & STS_PT), dev->adap.timeout * HZ);
 
                 if (unlikely(ret < 0))
@@ -424,37 +424,37 @@ static int iic_wait_for_tc(struct ibm_iic_private* dev){
         else {
                 /* Polling mode */
                 unsigned long x = jiffies + dev->adap.timeout * HZ;
-                
+
                 while (in_8(&iic->sts) & STS_PT){
                         if (unlikely(time_after(jiffies, x))){
                                 DBG("%d: poll timeout\n", dev->idx);
                                 ret = -ETIMEDOUT;
                                 break;
                         }
-                
+
                         if (unlikely(signal_pending(current))){
                                 DBG("%d: poll interrupted\n", dev->idx);
                                 ret = -ERESTARTSYS;
                                 break;
                         }
                         schedule();
-                }       
+                }
         }
-        
+
         if (unlikely(ret < 0))
                 iic_abort_xfer(dev);
         else
                 ret = iic_xfer_result(dev);
-        
+
         DBG2("%d: iic_wait_for_tc -> %d\n", dev->idx, ret);
-        
+
         return ret;
 }
 
 /*
  * Low level master transfer routine
  */
-static int iic_xfer_bytes(struct ibm_iic_private* dev, struct i2c_msg* pm, 
+static int iic_xfer_bytes(struct ibm_iic_private* dev, struct i2c_msg* pm,
                           int combined_xfer)
 {
         volatile struct iic_regs __iomem *iic = dev->vaddr;
@@ -465,48 +465,48 @@ static int iic_xfer_bytes(struct ibm_iic_private* dev, struct i2c_msg* pm,
         u8 cntl = (in_8(&iic->cntl) & CNTL_AMD) | CNTL_PT;
         if (pm->flags & I2C_M_RD)
                 cntl |= CNTL_RW;
-        
+
         loops = (len + 3) / 4;
         for (i = 0; i < loops; ++i, len -= 4){
                 int count = len > 4 ? 4 : len;
                 u8 cmd = cntl | ((count - 1) << CNTL_TCT_SHIFT);
-                
+
                 if (!(cntl & CNTL_RW))
                         for (j = 0; j < count; ++j)
                                 out_8((void __iomem *)&iic->mdbuf, *buf++);
-                
+
                 if (i < loops - 1)
                         cmd |= CNTL_CHT;
                 else if (combined_xfer)
                         cmd |= CNTL_RPST;
-                
+
                 DBG2("%d: xfer_bytes, %d, CNTL = 0x%02x\n", dev->idx, count, cmd);
-                
+
                 /* Start transfer */
                 out_8(&iic->cntl, cmd);
-                
+
                 /* Wait for completion */
                 ret = iic_wait_for_tc(dev);
 
                 if (unlikely(ret < 0))
                         break;
                 else if (unlikely(ret != count)){
-                        DBG("%d: xfer_bytes, requested %d, transfered %d\n", 
+                        DBG("%d: xfer_bytes, requested %d, transfered %d\n",
                                 dev->idx, count, ret);
-                        
+
                         /* If it's not a last part of xfer, abort it */
                         if (combined_xfer || (i < loops - 1))
                                 iic_abort_xfer(dev);
-                                
+
                         ret = -EREMOTEIO;
-                        break;                          
+                        break;
                 }
-                
+
                 if (cntl & CNTL_RW)
                         for (j = 0; j < count; ++j)
                                 *buf++ = in_8((void __iomem *)&iic->mdbuf);
         }
-        
+
         return ret > 0 ? 0 : ret;
 }
 
@@ -517,10 +517,10 @@ static inline void iic_address(struct ibm_iic_private* dev, struct i2c_msg* msg)
 {
         volatile struct iic_regs __iomem *iic = dev->vaddr;
         u16 addr = msg->addr;
-        
-        DBG2("%d: iic_address, 0x%03x (%d-bit)\n", dev->idx, 
+
+        DBG2("%d: iic_address, 0x%03x (%d-bit)\n", dev->idx,
                 addr, msg->flags & I2C_M_TEN ? 10 : 7);
-        
+
         if (msg->flags & I2C_M_TEN){
             out_8(&iic->cntl, CNTL_AMD);
             out_8(&iic->lmadr, addr);
@@ -537,15 +537,15 @@ static inline int iic_invalid_address(const struct i2c_msg* p)
         return (p->addr > 0x3ff) || (!(p->flags & I2C_M_TEN) && (p->addr > 0x7f));
 }
 
-static inline int iic_address_neq(const struct i2c_msg* p1, 
+static inline int iic_address_neq(const struct i2c_msg* p1,
                                   const struct i2c_msg* p2)
 {
-        return (p1->addr != p2->addr) 
+        return (p1->addr != p2->addr)
                 || ((p1->flags & I2C_M_TEN) != (p2->flags & I2C_M_TEN));
-} 
+}
 
 /*
- * Generic master transfer entrypoint. 
+ * Generic master transfer entrypoint.
  * Returns the number of processed messages or error (<0)
  */
 static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
@@ -553,20 +553,20 @@ static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
         struct ibm_iic_private* dev = (struct ibm_iic_private*)(i2c_get_adapdata(adap));
         volatile struct iic_regs __iomem *iic = dev->vaddr;
         int i, ret = 0;
-        
+
         DBG2("%d: iic_xfer, %d msg(s)\n", dev->idx, num);
-        
+
         if (!num)
                 return 0;
-        
+
         /* Check the sanity of the passed messages.
          * Uhh, generic i2c layer is more suitable place for such code...
          */
         if (unlikely(iic_invalid_address(&msgs[0]))){
-                DBG("%d: invalid address 0x%03x (%d-bit)\n", dev->idx, 
+                DBG("%d: invalid address 0x%03x (%d-bit)\n", dev->idx,
                         msgs[0].addr, msgs[0].flags & I2C_M_TEN ? 10 : 7);
                 return -EINVAL;
-        }               
+        }
         for (i = 0; i < num; ++i){
                 if (unlikely(msgs[i].len <= 0)){
                         if (num == 1 && !msgs[0].len){
@@ -576,7 +576,7 @@ static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
                                  */
                                 return iic_smbus_quick(dev, &msgs[0]);
                         }
-                        DBG("%d: invalid len %d in msg[%d]\n", dev->idx, 
+                        DBG("%d: invalid len %d in msg[%d]\n", dev->idx,
                                 msgs[i].len, i);
                         return -EINVAL;
                 }
@@ -585,34 +585,34 @@ static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
                         return -EINVAL;
                 }
         }
-        
+
         /* Check bus state */
         if (unlikely((in_8(&iic->extsts) & EXTSTS_BCS_MASK) != EXTSTS_BCS_FREE)){
                 DBG("%d: iic_xfer, bus is not free\n", dev->idx);
-                
+
                 /* Usually it means something serious has happend.
                  * We *cannot* have unfinished previous transfer
                  * so it doesn't make any sense to try to stop it.
-                 * Probably we were not able to recover from the 
+                 * Probably we were not able to recover from the
                  * previous error.
                  * The only *reasonable* thing I can think of here
                  * is soft reset.  --ebs
                  */
                 iic_dev_reset(dev);
-                
+
                 if ((in_8(&iic->extsts) & EXTSTS_BCS_MASK) != EXTSTS_BCS_FREE){
                         DBG("%d: iic_xfer, bus is still not free\n", dev->idx);
                         return -EREMOTEIO;
                 }
-        } 
+        }
         else {
                 /* Flush master data buffer (just in case) */
                 out_8(&iic->mdcntl, in_8(&iic->mdcntl) | MDCNTL_FMDB);
         }
-        
+
         /* Load slave address */
         iic_address(dev, &msgs[0]);
-        
+
         /* Do real transfer */
         for (i = 0; i < num && !ret; ++i)
                 ret = iic_xfer_bytes(dev, &msgs[i], i < num - 1);
@@ -648,7 +648,7 @@ static inline u8 iic_clckdiv(unsigned int opb)
 
         /* Convert to MHz */
         opb /= 1000000;
-        
+
         if (opb < 20 || opb > 150){
                 printk(KERN_CRIT "ibm-iic: invalid OPB clock frequency %u MHz\n",
                         opb);
@@ -666,7 +666,7 @@ static int __devinit iic_probe(struct ocp_device *ocp){
         struct i2c_adapter* adap;
         struct ocp_func_iic_data* iic_data = ocp->def->additions;
         int ret;
-        
+
         if (!iic_data)
                 printk(KERN_WARNING"ibm-iic%d: missing additional data!\n",
                         ocp->def->index);
@@ -679,7 +679,7 @@ static int __devinit iic_probe(struct ocp_device *ocp){
 
         dev->idx = ocp->def->index;
         ocp_set_drvdata(ocp, dev);
-        
+
         if (!request_mem_region(ocp->def->paddr, sizeof(struct iic_regs),
                                 "ibm_iic")) {
                 ret = -EBUSY;
@@ -692,7 +692,7 @@ static int __devinit iic_probe(struct ocp_device *ocp){
                 ret = -ENXIO;
                 goto fail2;
         }
-        
+
         init_waitqueue_head(&dev->wq);
 
         dev->irq = iic_force_poll ? -1 : ocp->def->irq;
@@ -702,29 +702,29 @@ static int __devinit iic_probe(struct ocp_device *ocp){
                  */
                 iic_interrupt_mode(dev, 0);
                 if (request_irq(dev->irq, iic_handler, 0, "IBM IIC", dev)){
-                        printk(KERN_ERR "ibm-iic%d: request_irq %d failed\n", 
+                        printk(KERN_ERR "ibm-iic%d: request_irq %d failed\n",
                                 dev->idx, dev->irq);
-                        /* Fallback to the polling mode */      
+                        /* Fallback to the polling mode */
                         dev->irq = -1;
                 }
         }
-        
+
         if (dev->irq < 0)
-                printk(KERN_WARNING "ibm-iic%d: using polling mode\n", 
+                printk(KERN_WARNING "ibm-iic%d: using polling mode\n",
                         dev->idx);
-                
+
         /* Board specific settings */
         dev->fast_mode = iic_force_fast ? 1 : (iic_data ? iic_data->fast_mode : 0);
-        
-        /* clckdiv is the same for *all* IIC interfaces, 
+
+        /* clckdiv is the same for *all* IIC interfaces,
          * but I'd rather make a copy than introduce another global. --ebs
          */
         dev->clckdiv = iic_clckdiv(ocp_sys_info.opb_bus_freq);
         DBG("%d: clckdiv = %d\n", dev->idx, dev->clckdiv);
-        
+
         /* Initialize IIC interface */
         iic_dev_init(dev);
-        
+
         /* Register it with i2c layer */
         adap = &dev->adap;
         adap->dev.parent = &ocp->dev;
@@ -750,24 +750,24 @@ static int __devinit iic_probe(struct ocp_device *ocp){
                         dev->idx);
                 goto fail;
         }
-        
+
         printk(KERN_INFO "ibm-iic%d: using %s mode\n", dev->idx,
                 dev->fast_mode ? "fast (400 kHz)" : "standard (100 kHz)");
 
         return 0;
 
-fail:   
+fail:
         if (dev->irq >= 0){
                 iic_interrupt_mode(dev, 0);
                 free_irq(dev->irq, dev);
-        }       
+        }
 
         iounmap(dev->vaddr);
-fail2:  
+fail2:
         release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
 fail1:
         ocp_set_drvdata(ocp, NULL);
-        kfree(dev);     
+        kfree(dev);
         return ret;
 }
 
@@ -783,13 +783,13 @@ static void __devexit iic_remove(struct ocp_device *ocp)
                         dev->idx);
                 /* That's *very* bad, just shutdown IRQ ... */
                 if (dev->irq >= 0){
-                    iic_interrupt_mode(dev, 0); 
+                    iic_interrupt_mode(dev, 0);
                     free_irq(dev->irq, dev);
                     dev->irq = -1;
                 }
         } else {
                 if (dev->irq >= 0){
-                    iic_interrupt_mode(dev, 0); 
+                    iic_interrupt_mode(dev, 0);
                     free_irq(dev->irq, dev);
                 }
                 iounmap(dev->vaddr);
@@ -798,7 +798,7 @@ static void __devexit iic_remove(struct ocp_device *ocp)
         }
 }
 
-static struct ocp_device_id ibm_iic_ids[] __devinitdata = 
+static struct ocp_device_id ibm_iic_ids[] __devinitdata =
 {
         { .vendor = OCP_VENDOR_IBM, .function = OCP_FUNC_IIC },
         { .vendor = OCP_VENDOR_INVALID }