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authorJean Delvare <khali@linux-fr.org>2005-11-26 21:00:54 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2006-01-05 22:16:22 -0800
commitcde7859bda0d1124392b44e50aa11df99707e1d9 (patch)
treec852e7ff9b44b5e59f6ae75951514585f0ff10d9 /drivers
parentcb748fb20186d4b345c68a7f580429f379fdd268 (diff)
[PATCH] i2c: Rework client usage count, 2 of 3
Make I2C_CLIENT_ALLOW_USE the default for all i2c clients. It doesn't hurt if the usage count is actually never used for any given driver, and allows for nice code simplifications in i2c-core. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/i2c/chips/rtc8564.c1
-rw-r--r--drivers/i2c/i2c-core.c28
-rw-r--r--drivers/media/video/adv7170.c1
-rw-r--r--drivers/media/video/adv7175.c1
-rw-r--r--drivers/media/video/bt819.c1
-rw-r--r--drivers/media/video/bt832.c1
-rw-r--r--drivers/media/video/bt856.c1
-rw-r--r--drivers/media/video/cs53l32a.c1
-rw-r--r--drivers/media/video/cx25840/cx25840-core.c1
-rw-r--r--drivers/media/video/em28xx/em28xx-i2c.c1
-rw-r--r--drivers/media/video/msp3400.c1
-rw-r--r--drivers/media/video/saa6588.c1
-rw-r--r--drivers/media/video/saa7110.c1
-rw-r--r--drivers/media/video/saa7111.c1
-rw-r--r--drivers/media/video/saa7114.c1
-rw-r--r--drivers/media/video/saa7115.c1
-rw-r--r--drivers/media/video/saa711x.c1
-rw-r--r--drivers/media/video/saa7127.c1
-rw-r--r--drivers/media/video/saa7134/saa6752hs.c1
-rw-r--r--drivers/media/video/saa7185.c1
-rw-r--r--drivers/media/video/tda9887.c1
-rw-r--r--drivers/media/video/tuner-core.c1
-rw-r--r--drivers/media/video/tvaudio.c1
-rw-r--r--drivers/media/video/tveeprom.c1
-rw-r--r--drivers/media/video/tvp5150.c1
-rw-r--r--drivers/media/video/vpx3220.c1
-rw-r--r--drivers/media/video/wm8775.c1
27 files changed, 10 insertions, 44 deletions
diff --git a/drivers/i2c/chips/rtc8564.c b/drivers/i2c/chips/rtc8564.c
index e586f75dd02..07494d39438 100644
--- a/drivers/i2c/chips/rtc8564.c
+++ b/drivers/i2c/chips/rtc8564.c
@@ -155,7 +155,6 @@ static int rtc8564_attach(struct i2c_adapter *adap, int addr, int kind)
strlcpy(new_client->name, "RTC8564", I2C_NAME_SIZE);
i2c_set_clientdata(new_client, d);
- new_client->flags = I2C_CLIENT_ALLOW_USE;
new_client->addr = addr;
new_client->adapter = adap;
new_client->driver = &rtc8564_driver;
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 2f0bc952937..d16b4998c4c 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -419,8 +419,7 @@ int i2c_attach_client(struct i2c_client *client)
}
}
- if (client->flags & I2C_CLIENT_ALLOW_USE)
- client->usage_count = 0;
+ client->usage_count = 0;
client->dev.parent = &client->adapter->dev;
client->dev.driver = &client->driver->driver;
@@ -443,8 +442,7 @@ int i2c_detach_client(struct i2c_client *client)
struct i2c_adapter *adapter = client->adapter;
int res = 0;
- if ((client->flags & I2C_CLIENT_ALLOW_USE)
- && (client->usage_count > 0)) {
+ if (client->usage_count > 0) {
dev_warn(&client->dev, "Client [%s] still busy, "
"can't detach\n", client->name);
return -EBUSY;
@@ -499,12 +497,9 @@ int i2c_use_client(struct i2c_client *client)
if (ret)
return ret;
- if (client->flags & I2C_CLIENT_ALLOW_USE) {
- if (client->usage_count > 0)
- goto busy;
- else
- client->usage_count++;
- }
+ if (client->usage_count > 0)
+ goto busy;
+ client->usage_count++;
return 0;
busy:
@@ -514,16 +509,13 @@ int i2c_use_client(struct i2c_client *client)
int i2c_release_client(struct i2c_client *client)
{
- if(client->flags & I2C_CLIENT_ALLOW_USE) {
- if(client->usage_count>0)
- client->usage_count--;
- else {
- pr_debug("i2c-core: %s used one too many times\n",
- __FUNCTION__);
- return -EPERM;
- }
+ if (!client->usage_count) {
+ pr_debug("i2c-core: %s used one too many times\n",
+ __FUNCTION__);
+ return -EPERM;
}
+ client->usage_count--;
i2c_dec_use_client(client);
return 0;
diff --git a/drivers/media/video/adv7170.c b/drivers/media/video/adv7170.c
index c4f2265167a..622b1619a7e 100644
--- a/drivers/media/video/adv7170.c
+++ b/drivers/media/video/adv7170.c
@@ -420,7 +420,6 @@ adv7170_detect_client (struct i2c_adapter *adapter,
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_adv7170;
- client->flags = I2C_CLIENT_ALLOW_USE;
if ((client->addr == I2C_ADV7170 >> 1) ||
(client->addr == (I2C_ADV7170 >> 1) + 1)) {
dname = adv7170_name;
diff --git a/drivers/media/video/adv7175.c b/drivers/media/video/adv7175.c
index 4fc08b17d4d..d4859b44571 100644
--- a/drivers/media/video/adv7175.c
+++ b/drivers/media/video/adv7175.c
@@ -470,7 +470,6 @@ adv7175_detect_client (struct i2c_adapter *adapter,
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_adv7175;
- client->flags = I2C_CLIENT_ALLOW_USE;
if ((client->addr == I2C_ADV7175 >> 1) ||
(client->addr == (I2C_ADV7175 >> 1) + 1)) {
dname = adv7175_name;
diff --git a/drivers/media/video/bt819.c b/drivers/media/video/bt819.c
index 7bba69793b7..741e59af099 100644
--- a/drivers/media/video/bt819.c
+++ b/drivers/media/video/bt819.c
@@ -535,7 +535,6 @@ bt819_detect_client (struct i2c_adapter *adapter,
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_bt819;
- client->flags = I2C_CLIENT_ALLOW_USE;
decoder = kmalloc(sizeof(struct bt819), GFP_KERNEL);
if (decoder == NULL) {
diff --git a/drivers/media/video/bt832.c b/drivers/media/video/bt832.c
index 0ba8652357e..4ed13860b52 100644
--- a/drivers/media/video/bt832.c
+++ b/drivers/media/video/bt832.c
@@ -240,7 +240,6 @@ static struct i2c_driver driver = {
static struct i2c_client client_template =
{
.name = "bt832",
- .flags = I2C_CLIENT_ALLOW_USE,
.driver = &driver,
};
diff --git a/drivers/media/video/bt856.c b/drivers/media/video/bt856.c
index 4c9acd1e2c7..d4bba8efac6 100644
--- a/drivers/media/video/bt856.c
+++ b/drivers/media/video/bt856.c
@@ -323,7 +323,6 @@ bt856_detect_client (struct i2c_adapter *adapter,
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_bt856;
- client->flags = I2C_CLIENT_ALLOW_USE;
strlcpy(I2C_NAME(client), "bt856", sizeof(I2C_NAME(client)));
encoder = kmalloc(sizeof(struct bt856), GFP_KERNEL);
diff --git a/drivers/media/video/cs53l32a.c b/drivers/media/video/cs53l32a.c
index fce5d89b7b1..f442ce3ba74 100644
--- a/drivers/media/video/cs53l32a.c
+++ b/drivers/media/video/cs53l32a.c
@@ -154,7 +154,6 @@ static int cs53l32a_attach(struct i2c_adapter *adapter, int address, int kind)
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver;
- client->flags = I2C_CLIENT_ALLOW_USE;
snprintf(client->name, sizeof(client->name) - 1, "cs53l32a");
cs53l32a_info("chip found @ 0x%x (%s)\n", address << 1, adapter->name);
diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c
index c66bc147ee7..0b278abe879 100644
--- a/drivers/media/video/cx25840/cx25840-core.c
+++ b/drivers/media/video/cx25840/cx25840-core.c
@@ -773,7 +773,6 @@ static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_cx25840;
- client->flags = I2C_CLIENT_ALLOW_USE;
snprintf(client->name, sizeof(client->name) - 1, "cx25840");
cx25840_dbg("detecting cx25840 client on address 0x%x\n", address << 1);
diff --git a/drivers/media/video/em28xx/em28xx-i2c.c b/drivers/media/video/em28xx/em28xx-i2c.c
index 7f5603054f0..d14bcf4ceae 100644
--- a/drivers/media/video/em28xx/em28xx-i2c.c
+++ b/drivers/media/video/em28xx/em28xx-i2c.c
@@ -497,7 +497,6 @@ static struct i2c_adapter em28xx_adap_template = {
static struct i2c_client em28xx_client_template = {
.name = "em28xx internal",
- .flags = I2C_CLIENT_ALLOW_USE,
};
/* ----------------------------------------------------------- */
diff --git a/drivers/media/video/msp3400.c b/drivers/media/video/msp3400.c
index 46328fb6fe8..c5e8ad3aac4 100644
--- a/drivers/media/video/msp3400.c
+++ b/drivers/media/video/msp3400.c
@@ -1576,7 +1576,6 @@ static struct i2c_driver driver = {
static struct i2c_client client_template =
{
.name = "(unset)",
- .flags = I2C_CLIENT_ALLOW_USE,
.driver = &driver,
};
diff --git a/drivers/media/video/saa6588.c b/drivers/media/video/saa6588.c
index 18a0b7143e8..3d4076ca67c 100644
--- a/drivers/media/video/saa6588.c
+++ b/drivers/media/video/saa6588.c
@@ -505,7 +505,6 @@ static struct i2c_driver driver = {
static struct i2c_client client_template = {
.name = "saa6588",
- .flags = I2C_CLIENT_ALLOW_USE,
.driver = &driver,
};
diff --git a/drivers/media/video/saa7110.c b/drivers/media/video/saa7110.c
index f266b35ceb3..8affa63c8b2 100644
--- a/drivers/media/video/saa7110.c
+++ b/drivers/media/video/saa7110.c
@@ -501,7 +501,6 @@ saa7110_detect_client (struct i2c_adapter *adapter,
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_saa7110;
- client->flags = I2C_CLIENT_ALLOW_USE;
strlcpy(I2C_NAME(client), "saa7110", sizeof(I2C_NAME(client)));
decoder = kmalloc(sizeof(struct saa7110), GFP_KERNEL);
diff --git a/drivers/media/video/saa7111.c b/drivers/media/video/saa7111.c
index 687beaf11ad..2b220456451 100644
--- a/drivers/media/video/saa7111.c
+++ b/drivers/media/video/saa7111.c
@@ -518,7 +518,6 @@ saa7111_detect_client (struct i2c_adapter *adapter,
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_saa7111;
- client->flags = I2C_CLIENT_ALLOW_USE;
strlcpy(I2C_NAME(client), "saa7111", sizeof(I2C_NAME(client)));
decoder = kmalloc(sizeof(struct saa7111), GFP_KERNEL);
diff --git a/drivers/media/video/saa7114.c b/drivers/media/video/saa7114.c
index 4748cf0598c..285f6c7a8f7 100644
--- a/drivers/media/video/saa7114.c
+++ b/drivers/media/video/saa7114.c
@@ -859,7 +859,6 @@ saa7114_detect_client (struct i2c_adapter *adapter,
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_saa7114;
- client->flags = I2C_CLIENT_ALLOW_USE;
strlcpy(I2C_NAME(client), "saa7114", sizeof(I2C_NAME(client)));
decoder = kmalloc(sizeof(struct saa7114), GFP_KERNEL);
diff --git a/drivers/media/video/saa7115.c b/drivers/media/video/saa7115.c
index b1079de938b..79aadd2d408 100644
--- a/drivers/media/video/saa7115.c
+++ b/drivers/media/video/saa7115.c
@@ -1270,7 +1270,6 @@ static int saa7115_attach(struct i2c_adapter *adapter, int address, int kind)
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_saa7115;
- client->flags = I2C_CLIENT_ALLOW_USE;
snprintf(client->name, sizeof(client->name) - 1, "saa7115");
saa7115_dbg("detecting saa7115 client on address 0x%x\n", address << 1);
diff --git a/drivers/media/video/saa711x.c b/drivers/media/video/saa711x.c
index 734a7091908..44bfc047704 100644
--- a/drivers/media/video/saa711x.c
+++ b/drivers/media/video/saa711x.c
@@ -494,7 +494,6 @@ saa711x_detect_client (struct i2c_adapter *adapter,
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_saa711x;
- client->flags = I2C_CLIENT_ALLOW_USE;
strlcpy(I2C_NAME(client), "saa711x", sizeof(I2C_NAME(client)));
decoder = kmalloc(sizeof(struct saa711x), GFP_KERNEL);
if (decoder == NULL) {
diff --git a/drivers/media/video/saa7127.c b/drivers/media/video/saa7127.c
index a2fab983750..1f4b4159944 100644
--- a/drivers/media/video/saa7127.c
+++ b/drivers/media/video/saa7127.c
@@ -719,7 +719,6 @@ static int saa7127_attach(struct i2c_adapter *adapter, int address, int kind)
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_saa7127;
- client->flags = I2C_CLIENT_ALLOW_USE;
snprintf(client->name, sizeof(client->name) - 1, "saa7127");
saa7127_dbg("detecting saa7127 client on address 0x%x\n", address << 1);
diff --git a/drivers/media/video/saa7134/saa6752hs.c b/drivers/media/video/saa7134/saa6752hs.c
index 6fc298e0a03..68206060c92 100644
--- a/drivers/media/video/saa7134/saa6752hs.c
+++ b/drivers/media/video/saa7134/saa6752hs.c
@@ -608,7 +608,6 @@ static struct i2c_driver driver = {
static struct i2c_client client_template =
{
.name = "saa6752hs",
- .flags = I2C_CLIENT_ALLOW_USE,
.driver = &driver,
};
diff --git a/drivers/media/video/saa7185.c b/drivers/media/video/saa7185.c
index e24aa16f2d8..9f37585d3f7 100644
--- a/drivers/media/video/saa7185.c
+++ b/drivers/media/video/saa7185.c
@@ -415,7 +415,6 @@ saa7185_detect_client (struct i2c_adapter *adapter,
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_saa7185;
- client->flags = I2C_CLIENT_ALLOW_USE;
strlcpy(I2C_NAME(client), "saa7185", sizeof(I2C_NAME(client)));
encoder = kmalloc(sizeof(struct saa7185), GFP_KERNEL);
diff --git a/drivers/media/video/tda9887.c b/drivers/media/video/tda9887.c
index 049b44e0767..324f61bf714 100644
--- a/drivers/media/video/tda9887.c
+++ b/drivers/media/video/tda9887.c
@@ -833,7 +833,6 @@ static struct i2c_driver driver = {
static struct i2c_client client_template =
{
.name = "tda9887",
- .flags = I2C_CLIENT_ALLOW_USE,
.driver = &driver,
};
diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
index 3c75121f638..6328f0954e7 100644
--- a/drivers/media/video/tuner-core.c
+++ b/drivers/media/video/tuner-core.c
@@ -755,7 +755,6 @@ static struct i2c_driver driver = {
};
static struct i2c_client client_template = {
.name = "(tuner unset)",
- .flags = I2C_CLIENT_ALLOW_USE,
.driver = &driver,
};
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c
index 3565f35be7a..4f1f339283e 100644
--- a/drivers/media/video/tvaudio.c
+++ b/drivers/media/video/tvaudio.c
@@ -1713,7 +1713,6 @@ static struct i2c_driver driver = {
static struct i2c_client client_template =
{
.name = "(unset)",
- .flags = I2C_CLIENT_ALLOW_USE,
.driver = &driver,
};
diff --git a/drivers/media/video/tveeprom.c b/drivers/media/video/tveeprom.c
index 195bc51d457..d833b651073 100644
--- a/drivers/media/video/tveeprom.c
+++ b/drivers/media/video/tveeprom.c
@@ -751,7 +751,6 @@ tveeprom_detect_client(struct i2c_adapter *adapter,
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_tveeprom;
- client->flags = I2C_CLIENT_ALLOW_USE;
snprintf(client->name, sizeof(client->name), "tveeprom");
i2c_attach_client(client);
diff --git a/drivers/media/video/tvp5150.c b/drivers/media/video/tvp5150.c
index 4f3ee209161..3734554fc73 100644
--- a/drivers/media/video/tvp5150.c
+++ b/drivers/media/video/tvp5150.c
@@ -714,7 +714,6 @@ static struct i2c_driver driver;
static struct i2c_client client_template = {
.name = "(unset)",
- .flags = I2C_CLIENT_ALLOW_USE,
.driver = &driver,
};
diff --git a/drivers/media/video/vpx3220.c b/drivers/media/video/vpx3220.c
index c66d28505bc..54bc888c389 100644
--- a/drivers/media/video/vpx3220.c
+++ b/drivers/media/video/vpx3220.c
@@ -631,7 +631,6 @@ vpx3220_detect_client (struct i2c_adapter *adapter,
client->addr = address;
client->adapter = adapter;
client->driver = &vpx3220_i2c_driver;
- client->flags = I2C_CLIENT_ALLOW_USE;
/* Check for manufacture ID and part number */
if (kind < 0) {
diff --git a/drivers/media/video/wm8775.c b/drivers/media/video/wm8775.c
index 7b07717a3c6..527c2591749 100644
--- a/drivers/media/video/wm8775.c
+++ b/drivers/media/video/wm8775.c
@@ -168,7 +168,6 @@ static int wm8775_attach(struct i2c_adapter *adapter, int address, int kind)
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver;
- client->flags = I2C_CLIENT_ALLOW_USE;
snprintf(client->name, sizeof(client->name) - 1, "wm8775");
wm8775_info("chip found @ 0x%x (%s)\n", address << 1, adapter->name);