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Diffstat (limited to 'drivers/i2c/algos/i2c-algo-pca.c')
-rw-r--r--drivers/i2c/algos/i2c-algo-pca.c42
1 files changed, 21 insertions, 21 deletions
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index 2a16211f12e5..ebec91d71e1e 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -1,5 +1,5 @@
/*
- * i2c-algo-pca.c i2c driver algorithms for PCA9564 adapters
+ * i2c-algo-pca.c i2c driver algorithms for PCA9564 adapters
* Copyright (C) 2004 Arcom Control Systems
*
* This program is free software; you can redistribute it and/or modify
@@ -99,7 +99,7 @@ static void pca_stop(struct i2c_algo_pca_data *adap)
*
* returns after the address has been sent
*/
-static void pca_address(struct i2c_algo_pca_data *adap,
+static void pca_address(struct i2c_algo_pca_data *adap,
struct i2c_msg *msg)
{
int sta = pca_get_con(adap);
@@ -108,9 +108,9 @@ static void pca_address(struct i2c_algo_pca_data *adap,
addr = ( (0x7f & msg->addr) << 1 );
if (msg->flags & I2C_M_RD )
addr |= 1;
- DEB2("=== SLAVE ADDRESS %#04x+%c=%#04x\n",
+ DEB2("=== SLAVE ADDRESS %#04x+%c=%#04x\n",
msg->addr, msg->flags & I2C_M_RD ? 'R' : 'W', addr);
-
+
pca_outw(adap, I2C_PCA_DAT, addr);
sta &= ~(I2C_PCA_CON_STO|I2C_PCA_CON_STA|I2C_PCA_CON_SI);
@@ -124,7 +124,7 @@ static void pca_address(struct i2c_algo_pca_data *adap,
*
* Returns after the byte has been transmitted
*/
-static void pca_tx_byte(struct i2c_algo_pca_data *adap,
+static void pca_tx_byte(struct i2c_algo_pca_data *adap,
__u8 b)
{
int sta = pca_get_con(adap);
@@ -142,19 +142,19 @@ static void pca_tx_byte(struct i2c_algo_pca_data *adap,
*
* returns immediately.
*/
-static void pca_rx_byte(struct i2c_algo_pca_data *adap,
+static void pca_rx_byte(struct i2c_algo_pca_data *adap,
__u8 *b, int ack)
{
*b = pca_inw(adap, I2C_PCA_DAT);
DEB2("=== READ %#04x %s\n", *b, ack ? "ACK" : "NACK");
}
-/*
+/*
* Setup ACK or NACK for next received byte and wait for it to arrive.
*
* Returns after next byte has arrived.
*/
-static void pca_rx_ack(struct i2c_algo_pca_data *adap,
+static void pca_rx_ack(struct i2c_algo_pca_data *adap,
int ack)
{
int sta = pca_get_con(adap);
@@ -168,8 +168,8 @@ static void pca_rx_ack(struct i2c_algo_pca_data *adap,
pca_wait(adap);
}
-/*
- * Reset the i2c bus / SIO
+/*
+ * Reset the i2c bus / SIO
*/
static void pca_reset(struct i2c_algo_pca_data *adap)
{
@@ -203,14 +203,14 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
for (curmsg = 0; curmsg < num; curmsg++) {
int addr, i;
msg = &msgs[curmsg];
-
+
addr = (0x7f & msg->addr) ;
-
+
if (msg->flags & I2C_M_RD )
- printk(KERN_INFO " [%02d] RD %d bytes from %#02x [%#02x, ...]\n",
+ printk(KERN_INFO " [%02d] RD %d bytes from %#02x [%#02x, ...]\n",
curmsg, msg->len, addr, (addr<<1) | 1);
else {
- printk(KERN_INFO " [%02d] WR %d bytes to %#02x [%#02x%s",
+ printk(KERN_INFO " [%02d] WR %d bytes to %#02x [%#02x%s",
curmsg, msg->len, addr, addr<<1,
msg->len == 0 ? "" : ", ");
for(i=0; i < msg->len; i++)
@@ -237,7 +237,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
case 0x10: /* A repeated start condition has been transmitted */
pca_address(adap, msg);
break;
-
+
case 0x18: /* SLA+W has been transmitted; ACK has been received */
case 0x28: /* Data byte in I2CDAT has been transmitted; ACK has been received */
if (numbytes < msg->len) {
@@ -287,7 +287,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
case 0x38: /* Arbitration lost during SLA+W, SLA+R or data bytes */
DEB2("Arbitration lost\n");
goto out;
-
+
case 0x58: /* Data byte has been received; NOT ACK has been returned */
if ( numbytes == msg->len - 1 ) {
pca_rx_byte(adap, &msg->buf[numbytes], 0);
@@ -320,13 +320,13 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
printk(KERN_ERR DRIVER ": unhandled SIO state 0x%02x\n", state);
break;
}
-
+
}
ret = curmsg;
out:
DEB1(KERN_CRIT "}}} transfered %d/%d messages. "
- "status is %#04x. control is %#04x\n",
+ "status is %#04x. control is %#04x\n",
curmsg, num, pca_status(adap),
pca_get_con(adap));
return ret;
@@ -350,7 +350,7 @@ static int pca_init(struct i2c_algo_pca_data *adap)
pca_outw(adap, I2C_PCA_ADR, own << 1);
pca_set_con(adap, I2C_PCA_CON_ENSIO | clock);
- udelay(500); /* 500 µs for oscilator to stabilise */
+ udelay(500); /* 500 us for oscilator to stabilise */
return 0;
}
@@ -360,8 +360,8 @@ static const struct i2c_algorithm pca_algo = {
.functionality = pca_func,
};
-/*
- * registering functions to load algorithms at runtime
+/*
+ * registering functions to load algorithms at runtime
*/
int i2c_pca_add_bus(struct i2c_adapter *adap)
{