i2c-parport: Various cleanups

* Fix white space.
* Rename labels to something meaningful.
* Prefix defines with PORT_ to avoid collision with macros from
  <linux/parport.h>.
* Add const markers where possible.

Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 35 insertions, 39 deletions

diff --git a/drivers/i2c/busses/i2c-parport.h b/drivers/i2c/busses/i2c-parport.h
index a9f66816546c..3fe652302ea7 100644
--- a/drivers/i2c/busses/i2c-parport.h
+++ b/drivers/i2c/busses/i2c-parport.h
@@ -2,7 +2,7 @@
  * i2c-parport.h I2C bus over parallel port                                 *
  * ------------------------------------------------------------------------ *
    Copyright (C) 2003-2010 Jean Delvare <khali@linux-fr.org>
-   
+
    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
@@ -18,13 +18,9 @@
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  * ------------------------------------------------------------------------ */
 
-#ifdef DATA
-#undef DATA
-#endif
-
-#define DATA    0
-#define STAT    1
-#define CTRL    2
+#define PORT_DATA       0
+#define PORT_STAT       1
+#define PORT_CTRL       2
 
 struct lineop {
         u8 val;
@@ -41,61 +37,61 @@ struct adapter_parm {
         unsigned int smbus_alert:1;
 };
 
-static struct adapter_parm adapter_parm[] = {
+static const struct adapter_parm adapter_parm[] = {
         /* type 0: Philips adapter */
         {
-                .setsda = { 0x80, DATA, 1 },
-                .setscl = { 0x08, CTRL, 0 },
-                .getsda = { 0x80, STAT, 0 },
-                .getscl = { 0x08, STAT, 0 },
+                .setsda = { 0x80, PORT_DATA, 1 },
+                .setscl = { 0x08, PORT_CTRL, 0 },
+                .getsda = { 0x80, PORT_STAT, 0 },
+                .getscl = { 0x08, PORT_STAT, 0 },
         },
         /* type 1: home brew teletext adapter */
         {
-                .setsda = { 0x02, DATA, 0 },
-                .setscl = { 0x01, DATA, 0 },
-                .getsda = { 0x80, STAT, 1 },
+                .setsda = { 0x02, PORT_DATA, 0 },
+                .setscl = { 0x01, PORT_DATA, 0 },
+                .getsda = { 0x80, PORT_STAT, 1 },
         },
         /* type 2: Velleman K8000 adapter */
         {
-                .setsda = { 0x02, CTRL, 1 },
-                .setscl = { 0x08, CTRL, 1 },
-                .getsda = { 0x10, STAT, 0 },
+                .setsda = { 0x02, PORT_CTRL, 1 },
+                .setscl = { 0x08, PORT_CTRL, 1 },
+                .getsda = { 0x10, PORT_STAT, 0 },
         },
         /* type 3: ELV adapter */
         {
-                .setsda = { 0x02, DATA, 1 },
-                .setscl = { 0x01, DATA, 1 },
-                .getsda = { 0x40, STAT, 1 },
-                .getscl = { 0x08, STAT, 1 },
+                .setsda = { 0x02, PORT_DATA, 1 },
+                .setscl = { 0x01, PORT_DATA, 1 },
+                .getsda = { 0x40, PORT_STAT, 1 },
+                .getscl = { 0x08, PORT_STAT, 1 },
         },
         /* type 4: ADM1032 evaluation board */
         {
-                .setsda = { 0x02, DATA, 1 },
-                .setscl = { 0x01, DATA, 1 },
-                .getsda = { 0x10, STAT, 1 },
-                .init   = { 0xf0, DATA, 0 },
+                .setsda = { 0x02, PORT_DATA, 1 },
+                .setscl = { 0x01, PORT_DATA, 1 },
+                .getsda = { 0x10, PORT_STAT, 1 },
+                .init   = { 0xf0, PORT_DATA, 0 },
                 .smbus_alert = 1,
         },
         /* type 5: ADM1025, ADM1030 and ADM1031 evaluation boards */
         {
-                .setsda = { 0x02, DATA, 1 },
-                .setscl = { 0x01, DATA, 1 },
-                .getsda = { 0x10, STAT, 1 },
+                .setsda = { 0x02, PORT_DATA, 1 },
+                .setscl = { 0x01, PORT_DATA, 1 },
+                .getsda = { 0x10, PORT_STAT, 1 },
         },
         /* type 6: Barco LPT->DVI (K5800236) adapter */
         {
-                .setsda = { 0x02, DATA, 1 },
-                .setscl = { 0x01, DATA, 1 },
-                .getsda = { 0x20, STAT, 0 },
-                .getscl = { 0x40, STAT, 0 },
-                .init   = { 0xfc, DATA, 0 },
+                .setsda = { 0x02, PORT_DATA, 1 },
+                .setscl = { 0x01, PORT_DATA, 1 },
+                .getsda = { 0x20, PORT_STAT, 0 },
+                .getscl = { 0x40, PORT_STAT, 0 },
+                .init   = { 0xfc, PORT_DATA, 0 },
         },
         /* type 7: One For All JP1 parallel port adapter */
         {
-                .setsda = { 0x01, DATA, 0 },
-                .setscl = { 0x02, DATA, 0 },
-                .getsda = { 0x80, STAT, 1 },
-                .init   = { 0x04, DATA, 1 },
+                .setsda = { 0x01, PORT_DATA, 0 },
+                .setscl = { 0x02, PORT_DATA, 0 },
+                .getsda = { 0x80, PORT_STAT, 1 },
+                .init   = { 0x04, PORT_DATA, 1 },
         },
 };