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Diffstat (limited to 'drivers/i2c/algos/i2c-algo-pcf.c')
-rw-r--r--drivers/i2c/algos/i2c-algo-pcf.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/i2c/algos/i2c-algo-pcf.c b/drivers/i2c/algos/i2c-algo-pcf.c
index 1e328d19cd6d..3e01992230b8 100644
--- a/drivers/i2c/algos/i2c-algo-pcf.c
+++ b/drivers/i2c/algos/i2c-algo-pcf.c
@@ -135,7 +135,7 @@ static int wait_for_pin(struct i2c_algo_pcf_data *adap, int *status) {
*status = get_pcf(adap, 1);
#ifndef STUB_I2C
while (timeout-- && (*status & I2C_PCF_PIN)) {
- adap->waitforpin();
+ adap->waitforpin(adap->data);
*status = get_pcf(adap, 1);
}
if (*status & I2C_PCF_LAB) {
@@ -208,7 +208,7 @@ static int pcf_init_8584 (struct i2c_algo_pcf_data *adap)
return -ENXIO;
}
- printk(KERN_DEBUG "i2c-algo-pcf.o: deteted and initialized PCF8584.\n");
+ printk(KERN_DEBUG "i2c-algo-pcf.o: detected and initialized PCF8584.\n");
return 0;
}
@@ -331,13 +331,16 @@ static int pcf_xfer(struct i2c_adapter *i2c_adap,
int i;
int ret=0, timeout, status;
+ if (adap->xfer_begin)
+ adap->xfer_begin(adap->data);
/* Check for bus busy */
timeout = wait_for_bb(adap);
if (timeout) {
DEB2(printk(KERN_ERR "i2c-algo-pcf.o: "
"Timeout waiting for BB in pcf_xfer\n");)
- return -EIO;
+ i = -EIO;
+ goto out;
}
for (i = 0;ret >= 0 && i < num; i++) {
@@ -359,12 +362,14 @@ static int pcf_xfer(struct i2c_adapter *i2c_adap,
if (timeout) {
if (timeout == -EINTR) {
/* arbitration lost */
- return (-EINTR);
+ i = -EINTR;
+ goto out;
}
i2c_stop(adap);
DEB2(printk(KERN_ERR "i2c-algo-pcf.o: Timeout waiting "
"for PIN(1) in pcf_xfer\n");)
- return (-EREMOTEIO);
+ i = -EREMOTEIO;
+ goto out;
}
#ifndef STUB_I2C
@@ -372,7 +377,8 @@ static int pcf_xfer(struct i2c_adapter *i2c_adap,
if (status & I2C_PCF_LRB) {
i2c_stop(adap);
DEB2(printk(KERN_ERR "i2c-algo-pcf.o: No LRB(1) in pcf_xfer\n");)
- return (-EREMOTEIO);
+ i = -EREMOTEIO;
+ goto out;
}
#endif
@@ -404,6 +410,9 @@ static int pcf_xfer(struct i2c_adapter *i2c_adap,
}
}
+out:
+ if (adap->xfer_end)
+ adap->xfer_end(adap->data);
return (i);
}