Skip to content

Commit

Permalink
i2c-algo-pca: Remove trailing whitespaces and unnecessary UTF
Browse files Browse the repository at this point in the history 
Remove trailing whitespaces to make further patches more readable.  Also remove
an unnecessary UTF-char for simplicity ("us" for microseconds is fine enough).

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
  • Loading branch information
Wolfram Sang authored and Jean Delvare committed Apr 22, 2008
1 parent 3845de2 commit 3d43829
Show file tree
Hide file tree
Showing 2 changed files with 23 additions and 23 deletions.
42 changes: 21 additions & 21 deletions drivers/i2c/algos/i2c-algo-pca.c
View file
Original file line number Diff line number Diff line change
@@ -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
Expand Down Expand Up @@ -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);
Expand All @@ -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);
Expand All @@ -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);
Expand All @@ -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);
Expand All @@ -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)
{
Expand Down Expand Up @@ -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++)
Expand All @@ -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) {
Expand Down Expand Up @@ -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);
Expand Down Expand Up @@ -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;
Expand All @@ -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;
}
Expand All @@ -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)
{
Expand Down
4 changes: 2 additions & 2 deletions drivers/i2c/busses/i2c-pca-isa.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -78,7 +78,7 @@ pca_isa_readbyte(struct i2c_algo_pca_data *adap, int reg)
int res = inb(base+reg);
#ifdef DEBUG_IO
{
static char *names[] = { "STA", "DAT", "ADR", "CON" };
static char *names[] = { "STA", "DAT", "ADR", "CON" };
printk("*** read %s => %#04x\n", names[reg], res);
}
#endif
Expand All @@ -93,7 +93,7 @@ static int pca_isa_waitforinterrupt(struct i2c_algo_pca_data *adap)
ret = wait_event_interruptible(pca_wait,
pca_isa_readbyte(adap, I2C_PCA_CON) & I2C_PCA_CON_SI);
} else {
while ((pca_isa_readbyte(adap, I2C_PCA_CON) & I2C_PCA_CON_SI) == 0)
while ((pca_isa_readbyte(adap, I2C_PCA_CON) & I2C_PCA_CON_SI) == 0)
udelay(100);
}
return ret;
Expand Down

0 comments on commit 3d43829

Please sign in to comment.