diff options
Diffstat (limited to 'drivers/i2c/algos/i2c-algo-pca.c')
| -rw-r--r-- | drivers/i2c/algos/i2c-algo-pca.c | 38 |
1 files changed, 18 insertions, 20 deletions
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c index 78d42aae008..2b9a8f54bb2 100644 --- a/drivers/i2c/algos/i2c-algo-pca.c +++ b/drivers/i2c/algos/i2c-algo-pca.c @@ -109,13 +109,13 @@ static void pca_stop(struct i2c_algo_pca_data *adap) * returns after the address has been sent */ static int pca_address(struct i2c_algo_pca_data *adap, - struct i2c_msg *msg) + struct i2c_msg *msg) { int sta = pca_get_con(adap); int addr; - addr = ( (0x7f & msg->addr) << 1 ); - if (msg->flags & I2C_M_RD ) + addr = ((0x7f & msg->addr) << 1); + if (msg->flags & I2C_M_RD) addr |= 1; DEB2("=== SLAVE ADDRESS %#04x+%c=%#04x\n", msg->addr, msg->flags & I2C_M_RD ? 'R' : 'W', addr); @@ -134,7 +134,7 @@ static int pca_address(struct i2c_algo_pca_data *adap, * Returns after the byte has been transmitted */ static int pca_tx_byte(struct i2c_algo_pca_data *adap, - __u8 b) + __u8 b) { int sta = pca_get_con(adap); DEB2("=== WRITE %#04x\n", b); @@ -164,13 +164,13 @@ static void pca_rx_byte(struct i2c_algo_pca_data *adap, * Returns after next byte has arrived. */ static int pca_rx_ack(struct i2c_algo_pca_data *adap, - int ack) + int ack) { int sta = pca_get_con(adap); sta &= ~(I2C_PCA_CON_STO|I2C_PCA_CON_STA|I2C_PCA_CON_SI|I2C_PCA_CON_AA); - if ( ack ) + if (ack) sta |= I2C_PCA_CON_AA; pca_set_con(adap, sta); @@ -178,12 +178,12 @@ static int pca_rx_ack(struct i2c_algo_pca_data *adap, } static int pca_xfer(struct i2c_adapter *i2c_adap, - struct i2c_msg *msgs, - int num) + struct i2c_msg *msgs, + int num) { - struct i2c_algo_pca_data *adap = i2c_adap->algo_data; - struct i2c_msg *msg = NULL; - int curmsg; + struct i2c_algo_pca_data *adap = i2c_adap->algo_data; + struct i2c_msg *msg = NULL; + int curmsg; int numbytes = 0; int state; int ret; @@ -202,21 +202,21 @@ static int pca_xfer(struct i2c_adapter *i2c_adap, DEB1("{{{ XFER %d messages\n", num); - if (i2c_debug>=2) { + if (i2c_debug >= 2) { for (curmsg = 0; curmsg < num; curmsg++) { int addr, i; msg = &msgs[curmsg]; addr = (0x7f & msg->addr) ; - if (msg->flags & I2C_M_RD ) + if (msg->flags & I2C_M_RD) printk(KERN_INFO " [%02d] RD %d bytes from %#02x [%#02x, ...]\n", - curmsg, msg->len, addr, (addr<<1) | 1); + curmsg, msg->len, addr, (addr << 1) | 1); else { printk(KERN_INFO " [%02d] WR %d bytes to %#02x [%#02x%s", - curmsg, msg->len, addr, addr<<1, + curmsg, msg->len, addr, addr << 1, msg->len == 0 ? "" : ", "); - for(i=0; i < msg->len; i++) + for (i = 0; i < msg->len; i++) printk("%#04x%s", msg->buf[i], i == msg->len - 1 ? "" : ", "); printk("]\n"); } @@ -305,7 +305,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap, goto out; case 0x58: /* Data byte has been received; NOT ACK has been returned */ - if ( numbytes == msg->len - 1 ) { + if (numbytes == msg->len - 1) { pca_rx_byte(adap, &msg->buf[numbytes], 0); curmsg++; numbytes = 0; if (curmsg == num) @@ -352,7 +352,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap, static u32 pca_func(struct i2c_adapter *adap) { - return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; } static const struct i2c_algorithm pca_algo = { @@ -453,8 +453,6 @@ static int pca_init(struct i2c_adapter *adap) */ int raise_fall_time; - struct i2c_algo_pca_data *pca_data = adap->algo_data; - /* Ignore the reset function from the module, * we can use the parallel bus reset */ |