i2c-piix4: Minor cleanups

* Remove a needless include.
* Remove a legacy comment in piix4_access.
* Minor optimization in piix4_access.

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

1 files changed, 1 insertions, 7 deletions

diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 4ae3a2cb6ace..fdc9ad805e35 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -38,7 +38,6 @@
 #include <linux/ioport.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
-#include <linux/apm_bios.h>
 #include <linux/dmi.h>
 #include <asm/io.h>
 
@@ -343,12 +342,7 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
 
 
         switch (size) {
-        case PIIX4_BYTE:        /* Where is the result put? I assume here it is in
-                                   SMBHSTDAT0 but it might just as well be in the
-                                   SMBHSTCMD. No clue in the docs */
-
-                data->byte = inb_p(SMBHSTDAT0);
-                break;
+        case PIIX4_BYTE:
         case PIIX4_BYTE_DATA:
                 data->byte = inb_p(SMBHSTDAT0);
                 break;