[PATCH] i2c: scx200_acb whitespace and comment cleanup

scx200_acb: Whitespace and comment cleanup

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 43 insertions, 47 deletions

diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c
index d3478e084522..f45779b76908 100644
--- a/drivers/i2c/busses/scx200_acb.c
+++ b/drivers/i2c/busses/scx200_acb.c
@@ -1,27 +1,25 @@
-/*  linux/drivers/i2c/scx200_acb.c 
-
+/*
     Copyright (c) 2001,2002 Christer Weinigel <wingel@nano-system.com>
 
     National Semiconductor SCx200 ACCESS.bus support
-    
+
     Based on i2c-keywest.c which is:
         Copyright (c) 2001 Benjamin Herrenschmidt <benh@kernel.crashing.org>
         Copyright (c) 2000 Philip Edelbrock <phil@stimpy.netroedge.com>
-    
+
     This program is free software; you can redistribute it and/or
     modify it under the terms of the GNU General Public License as
     published by the Free Software Foundation; either version 2 of the
     License, or (at your option) any later version.
-   
+
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     General Public License for more details.
-   
+
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
 */
 
 #include <linux/module.h>
@@ -79,8 +77,7 @@ static const char *scx200_acb_state_name[] = {
 };
 
 /* Physical interface */
-struct scx200_acb_iface
-{
+struct scx200_acb_iface {
         struct scx200_acb_iface *next;
         struct i2c_adapter adapter;
         unsigned base;
@@ -100,7 +97,7 @@ struct scx200_acb_iface
 #define ACBSDA          (iface->base + 0)
 #define ACBST           (iface->base + 1)
 #define    ACBST_SDAST          0x40 /* SDA Status */
-#define    ACBST_BER            0x20 
+#define    ACBST_BER            0x20
 #define    ACBST_NEGACK         0x10 /* Negative Acknowledge */
 #define    ACBST_STASTR         0x08 /* Stall After Start */
 #define    ACBST_MASTER         0x02
@@ -109,9 +106,9 @@ struct scx200_acb_iface
 #define ACBCTL1         (iface->base + 3)
 #define    ACBCTL1_STASTRE      0x80
 #define    ACBCTL1_NMINTE       0x40
-#define    ACBCTL1_ACK          0x10
-#define    ACBCTL1_STOP         0x02
-#define    ACBCTL1_START        0x01
+#define    ACBCTL1_ACK          0x10
+#define    ACBCTL1_STOP         0x02
+#define    ACBCTL1_START        0x01
 #define ACBADDR         (iface->base + 4)
 #define ACBCTL2         (iface->base + 5)
 #define    ACBCTL2_ENABLE       0x01
@@ -122,7 +119,7 @@ static void scx200_acb_machine(struct scx200_acb_iface *iface, u8 status)
 {
         const char *errmsg;
 
-        DBG("state %s, status = 0x%02x\n", 
+        DBG("state %s, status = 0x%02x\n",
             scx200_acb_state_name[iface->state], status);
 
         if (status & ACBST_BER) {
@@ -160,10 +157,10 @@ static void scx200_acb_machine(struct scx200_acb_iface *iface, u8 status)
         case state_repeat_start:
                 outb(inb(ACBCTL1) | ACBCTL1_START, ACBCTL1);
                 /* fallthrough */
-                
+
         case state_quick:
                 if (iface->address_byte & 1) {
-                        if (iface->len == 1) 
+                        if (iface->len == 1)
                                 outb(inb(ACBCTL1) | ACBCTL1_ACK, ACBCTL1);
                         else
                                 outb(inb(ACBCTL1) & ~ACBCTL1_ACK, ACBCTL1);
@@ -202,17 +199,17 @@ static void scx200_acb_machine(struct scx200_acb_iface *iface, u8 status)
                         outb(inb(ACBCTL1) | ACBCTL1_STOP, ACBCTL1);
                         break;
                 }
-                
+
                 outb(*iface->ptr++, ACBSDA);
                 --iface->len;
-                
+
                 break;
         }
 
         return;
 
  negack:
-        DBG("negative acknowledge in state %s\n", 
+        DBG("negative acknowledge in state %s\n",
             scx200_acb_state_name[iface->state]);
 
         iface->state = state_idle;
@@ -231,7 +228,7 @@ static void scx200_acb_machine(struct scx200_acb_iface *iface, u8 status)
         iface->needs_reset = 1;
 }
 
-static void scx200_acb_timeout(struct scx200_acb_iface *iface) 
+static void scx200_acb_timeout(struct scx200_acb_iface *iface)
 {
         dev_err(&iface->adapter.dev, "timeout in state %s\n",
                 scx200_acb_state_name[iface->state]);
@@ -264,7 +261,7 @@ static void scx200_acb_poll(struct scx200_acb_iface *iface)
 static void scx200_acb_reset(struct scx200_acb_iface *iface)
 {
         /* Disable the ACCESS.bus device and Configure the SCL
-           frequency: 16 clock cycles */
+           frequency: 16 clock cycles */
         outb(0x70, ACBCTL2);
         /* Polling mode */
         outb(0, ACBCTL1);
@@ -283,9 +280,9 @@ static void scx200_acb_reset(struct scx200_acb_iface *iface)
 }
 
 static s32 scx200_acb_smbus_xfer(struct i2c_adapter *adapter,
-                                u16 address, unsigned short flags,      
-                                char rw, u8 command, int size, 
-                                union i2c_smbus_data *data)
+                                 u16 address, unsigned short flags,
+                                 char rw, u8 command, int size,
+                                 union i2c_smbus_data *data)
 {
         struct scx200_acb_iface *iface = i2c_get_adapdata(adapter);
         int len;
@@ -295,9 +292,10 @@ static s32 scx200_acb_smbus_xfer(struct i2c_adapter *adapter,
 
         switch (size) {
         case I2C_SMBUS_QUICK:
-                len = 0;
-                buffer = NULL;
-                break;
+                len = 0;
+                buffer = NULL;
+                break;
+
         case I2C_SMBUS_BYTE:
                 if (rw == I2C_SMBUS_READ) {
                         len = 1;
@@ -306,22 +304,26 @@ static s32 scx200_acb_smbus_xfer(struct i2c_adapter *adapter,
                         len = 1;
                         buffer = &command;
                 }
-                break;
+                break;
+
         case I2C_SMBUS_BYTE_DATA:
-                len = 1;
-                buffer = &data->byte;
-                break;
+                len = 1;
+                buffer = &data->byte;
+                break;
+
         case I2C_SMBUS_WORD_DATA:
                 len = 2;
-                cur_word = cpu_to_le16(data->word);
-                buffer = (u8 *)&cur_word;
+                cur_word = cpu_to_le16(data->word);
+                buffer = (u8 *)&cur_word;
                 break;
+
         case I2C_SMBUS_BLOCK_DATA:
-                len = data->block[0];
-                buffer = &data->block[1];
+                len = data->block[0];
+                buffer = &data->block[1];
                 break;
+
         default:
-                return -EINVAL;
+                return -EINVAL;
         }
 
         DBG("size=%d, address=0x%x, command=0x%x, len=%d, read=%d\n",
@@ -370,7 +372,7 @@ static s32 scx200_acb_smbus_xfer(struct i2c_adapter *adapter,
         up(&iface->sem);
 
         if (rc == 0 && size == I2C_SMBUS_WORD_DATA && rw == I2C_SMBUS_READ)
-                data->word = le16_to_cpu(cur_word);
+                data->word = le16_to_cpu(cur_word);
 
 #ifdef DEBUG
         DBG(": transfer done, result: %d", rc);
@@ -406,7 +408,7 @@ static int scx200_acb_probe(struct scx200_acb_iface *iface)
         u8 val;
 
         /* Disable the ACCESS.bus device and Configure the SCL
-           frequency: 16 clock cycles */
+           frequency: 16 clock cycles */
         outb(0x70, ACBCTL2);
 
         if (inb(ACBCTL2) != 0x70) {
@@ -459,7 +461,8 @@ static int  __init scx200_acb_create(int base, int index)
 
         init_MUTEX(&iface->sem);
 
-        snprintf(description, sizeof(description), "NatSemi SCx200 ACCESS.bus [%s]", adapter->name);
+        snprintf(description, sizeof(description),
+                 "NatSemi SCx200 ACCESS.bus [%s]", adapter->name);
         if (request_region(base, 8, description) == 0) {
                 dev_err(&adapter->dev, "can't allocate io 0x%x-0x%x\n",
                         base, base + 8-1);
@@ -528,6 +531,7 @@ static int __init scx200_acb_init(void)
 static void __exit scx200_acb_cleanup(void)
 {
         struct scx200_acb_iface *iface;
+
         lock_kernel();
         while ((iface = scx200_acb_list) != NULL) {
                 scx200_acb_list = iface->next;
@@ -543,11 +547,3 @@ static void __exit scx200_acb_cleanup(void)
 
 module_init(scx200_acb_init);
 module_exit(scx200_acb_cleanup);
-
-/*
-    Local variables:
-        compile-command: "make -k -C ../.. SUBDIRS=drivers/i2c modules"
-        c-basic-offset: 8
-    End:
-*/
-