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authorJean Delvare <khali@linux-fr.org>2006-09-03 22:22:12 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2006-09-27 00:38:51 +0200
commit7b288a018ac563f5babe0818f581d8f8a4fdcbfb (patch)
treeae177369ee19d059228067aad967a58a87580f03 /drivers/i2c/algos
parenti2c-isa: Fail adding driver on attach_adapter error (diff)
downloadlinux-7b288a018ac563f5babe0818f581d8f8a4fdcbfb.tar.xz
linux-7b288a018ac563f5babe0818f581d8f8a4fdcbfb.zip
i2c-algo-bit: Cleanups
i2c-algo-bit: Cleanups * Uninline long functions (saves around 1 kB or 15%) * Refactor code in sclhi() * Drop redundant udelay on repeated start Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/i2c/algos')
-rw-r--r--drivers/i2c/algos/i2c-algo-bit.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c
index 761df16838b4..48fe3a3b0b51 100644
--- a/drivers/i2c/algos/i2c-algo-bit.c
+++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -76,17 +76,15 @@ static inline void scllo(struct i2c_algo_bit_data *adap)
* Raise scl line, and do checking for delays. This is necessary for slower
* devices.
*/
-static inline int sclhi(struct i2c_algo_bit_data *adap)
+static int sclhi(struct i2c_algo_bit_data *adap)
{
unsigned long start;
setscl(adap,1);
/* Not all adapters have scl sense line... */
- if (adap->getscl == NULL ) {
- udelay(adap->udelay);
- return 0;
- }
+ if (!adap->getscl)
+ goto done;
start=jiffies;
while (! getscl(adap) ) {
@@ -101,6 +99,8 @@ static inline int sclhi(struct i2c_algo_bit_data *adap)
cond_resched();
}
DEBSTAT(printk(KERN_DEBUG "needed %ld jiffies\n", jiffies-start));
+
+done:
udelay(adap->udelay);
return 0;
}
@@ -121,7 +121,6 @@ static void i2c_repstart(struct i2c_algo_bit_data *adap)
DEBPROTO(printk(" Sr "));
setsda(adap,1);
sclhi(adap);
- udelay(adap->udelay);
sdalo(adap);
scllo(adap);
@@ -306,7 +305,7 @@ bailout:
* 0 chip did not answer
* -x transmission error
*/
-static inline int try_address(struct i2c_adapter *i2c_adap,
+static int try_address(struct i2c_adapter *i2c_adap,
unsigned char addr, int retries)
{
struct i2c_algo_bit_data *adap = i2c_adap->algo_data;
@@ -358,7 +357,7 @@ static int sendbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)
return wrcount;
}
-static inline int readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)
+static int readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)
{
int inval;
int rdcount=0; /* counts bytes read */
@@ -408,7 +407,7 @@ static inline int readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)
* -x an error occurred (like: -EREMOTEIO if the device did not answer, or
* -ETIMEDOUT, for example if the lines are stuck...)
*/
-static inline int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)
+static int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)
{
unsigned short flags = msg->flags;
unsigned short nak_ok = msg->flags & I2C_M_IGNORE_NAK;