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path: root/drivers/i2c/algos/i2c-algo-pca.c
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Diffstat (limited to 'drivers/i2c/algos/i2c-algo-pca.c')
-rw-r--r--drivers/i2c/algos/i2c-algo-pca.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index cc3a952401f..beb10edfe9c 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -187,12 +187,14 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
int numbytes = 0;
int state;
int ret;
+ int timeout = 100;
- state = pca_status(adap);
- if ( state != 0xF8 ) {
- dev_dbg(&i2c_adap->dev, "bus is not idle. status is %#04x\n", state );
- /* FIXME: what to do. Force stop ? */
- return -EREMOTEIO;
+ while ((state = pca_status(adap)) != 0xf8 && timeout--) {
+ msleep(10);
+ }
+ if (state != 0xf8) {
+ dev_dbg(&i2c_adap->dev, "bus is not idle. status is %#04x\n", state);
+ return -EIO;
}
DEB1("{{{ XFER %d messages\n", num);
@@ -354,8 +356,6 @@ static int pca_init(struct i2c_algo_pca_data *adap)
}
static struct i2c_algorithm pca_algo = {
- .name = "PCA9564 algorithm",
- .id = I2C_ALGO_PCA,
.master_xfer = pca_xfer,
.functionality = pca_func,
};
@@ -369,8 +369,6 @@ int i2c_pca_add_bus(struct i2c_adapter *adap)
int rval;
/* register new adapter to i2c module... */
-
- adap->id |= pca_algo.id;
adap->algo = &pca_algo;
adap->timeout = 100; /* default values, should */