[PATCH] i2c: drop empty i2c_driver.command implementations

Given that implementing i2c_driver.command is optional, there is no
point in an empty implementation thereof.

Signed-off-by: Laurent Riffard <laurent.riffard@free.fr>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Michael Geng <linux@MichaelGeng.de>
Cc: Petr Vandrovec <vandrove@vc.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

4 files changed, 0 insertions, 26 deletions

diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index ad6e04fc2c03..ed7eed388bae 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -464,12 +464,6 @@ static int i2cdev_detach_client(struct i2c_client *client)
         return 0;
 }
 
-static int i2cdev_command(struct i2c_client *client, unsigned int cmd,
-                           void *arg)
-{
-        return -1;
-}
-
 static struct i2c_driver i2cdev_driver = {
         .driver = {
                 .name   = "dev_driver",
@@ -478,7 +472,6 @@ static struct i2c_driver i2cdev_driver = {
         .attach_adapter = i2cdev_attach_adapter,
         .detach_adapter = i2cdev_detach_adapter,
         .detach_client  = i2cdev_detach_client,
-        .command        = i2cdev_command,
 };
 
 static struct i2c_client i2cdev_client_template = {
diff --git a/drivers/media/video/saa5246a.c b/drivers/media/video/saa5246a.c
index 135c21479fc0..0aa9e72f632c 100644
--- a/drivers/media/video/saa5246a.c
+++ b/drivers/media/video/saa5246a.c
@@ -151,12 +151,6 @@ static int saa5246a_detach(struct i2c_client *client)
         return 0;
 }
 
-static int saa5246a_command(struct i2c_client *device, unsigned int cmd,
-        void *arg)
-{
-        return -EINVAL;
-}
-
 /*
  *      I2C interfaces
  */
@@ -169,7 +163,6 @@ static struct i2c_driver i2c_driver_videotext =
         .id             = I2C_DRIVERID_SAA5249, /* in i2c.h */
         .attach_adapter = saa5246a_probe,
         .detach_client  = saa5246a_detach,
-        .command        = saa5246a_command
 };
 
 static struct i2c_client client_template = {
diff --git a/drivers/media/video/saa5249.c b/drivers/media/video/saa5249.c
index d7c4e330cadd..a51c7bd96618 100644
--- a/drivers/media/video/saa5249.c
+++ b/drivers/media/video/saa5249.c
@@ -226,12 +226,6 @@ static int saa5249_detach(struct i2c_client *client)
         return 0;
 }
 
-static int saa5249_command(struct i2c_client *device,
-                             unsigned int cmd, void *arg)
-{
-        return -EINVAL;
-}
-
 /* new I2C driver support */
 
 static struct i2c_driver i2c_driver_videotext = 
@@ -242,7 +236,6 @@ static struct i2c_driver i2c_driver_videotext =
         .id             = I2C_DRIVERID_SAA5249, /* in i2c.h */
         .attach_adapter = saa5249_probe,
         .detach_client  = saa5249_detach,
-        .command        = saa5249_command
 };
 
 static struct i2c_client client_template = {
diff --git a/drivers/video/matrox/matroxfb_maven.c b/drivers/video/matrox/matroxfb_maven.c
index 255875378a3f..a1f2c5e8fc88 100644
--- a/drivers/video/matrox/matroxfb_maven.c
+++ b/drivers/video/matrox/matroxfb_maven.c
@@ -1288,10 +1288,6 @@ static int maven_detach_client(struct i2c_client* client) {
         return 0;
 }
 
-static int maven_command(struct i2c_client* client, unsigned int cmd, void* arg) {
-        return -ENOIOCTLCMD;    /* or -EINVAL, depends on who will call this */
-}
-
 static struct i2c_driver maven_driver={
         .driver = {
                 .name   = "maven",
@@ -1299,7 +1295,6 @@ static struct i2c_driver maven_driver={
         .id             = I2C_DRIVERID_MGATVO,
         .attach_adapter = maven_attach_adapter,
         .detach_client  = maven_detach_client,
-        .command        = maven_command,
 };
 
 /* ************************** */