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Some code cleanup.

This commit is contained in:
Wolfgang Denk 2007-03-04 01:36:05 +01:00 committed by Wolfgang Denk
parent b24444f1b3
commit 647d3c3eed
8 changed files with 78 additions and 94 deletions
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1
doc/README.mpc7448hpc2
View File

@ -182,4 +182,3 @@ SW4[7-8]: PCI/PCI-X frequency control
-
SW4=0 PCI-X mode at 133 MHz allowed
SW4=1 PCI-X mode limited to 100 MHz

31
drivers/tsi108_i2c.c
View File

@ -82,15 +82,10 @@ static int i2c_read_byte (
/* Wait until operation completed */
do {
/* Read I2C operation status */
temp =
*(u32 *) (CFG_TSI108_CSR_BASE + chan_offset +
I2C_CNTRL2);
temp = *(u32 *) (CFG_TSI108_CSR_BASE + chan_offset + I2C_CNTRL2);
if (0 ==
(temp & (I2C_CNTRL2_RD_STATUS | I2C_CNTRL2_START)))
{
if (0 ==
(temp &
if (0 == (temp & (I2C_CNTRL2_RD_STATUS | I2C_CNTRL2_START))) {
if (0 == (temp &
(I2C_CNTRL2_I2C_CFGERR |
I2C_CNTRL2_I2C_TO_ERR))
) {
@ -152,9 +147,7 @@ int i2c_read (uchar chip_addr, uint byte_addr, int alen,
/* Check for valid I2C address */
if (chip_addr <= 0x7F && (byte_addr + len) <= (0x01 << (alen * 8))) {
while (len--) {
op_status =
i2c_read_byte(i2c_if, chip_addr, byte_addr++,
buffer++);
op_status = i2c_read_byte(i2c_if, chip_addr, byte_addr++, buffer++);
if (TSI108_I2C_SUCCESS != op_status) {
DPRINT (("I2C read_byte() failed: 0x%02x (%d left)\n", op_status, len));
@ -182,10 +175,7 @@ static int i2c_write_byte (uchar chip_addr,/* I2C device address on the bus */
/* Check if I2C operation is in progress */
temp = *(u32 *) (CFG_TSI108_CSR_BASE + TSI108_I2C_OFFSET + I2C_CNTRL2);
if (0 ==
(temp &
(I2C_CNTRL2_RD_STATUS | I2C_CNTRL2_WR_STATUS | I2C_CNTRL2_START)))
{
if (0 == (temp & (I2C_CNTRL2_RD_STATUS | I2C_CNTRL2_WR_STATUS | I2C_CNTRL2_START))) {
/* Place data into the I2C Tx Register */
*(u32 *) (CFG_TSI108_CSR_BASE + TSI108_I2C_OFFSET +
I2C_TX_DATA) = (u32) * buffer;
@ -209,15 +199,10 @@ static int i2c_write_byte (uchar chip_addr,/* I2C device address on the bus */
/* Wait until operation completed */
do {
/* Read I2C operation status */
temp =
*(u32 *) (CFG_TSI108_CSR_BASE + TSI108_I2C_OFFSET +
I2C_CNTRL2);
temp = *(u32 *) (CFG_TSI108_CSR_BASE + TSI108_I2C_OFFSET + I2C_CNTRL2);
if (0 ==
(temp & (I2C_CNTRL2_WR_STATUS | I2C_CNTRL2_START)))
{
if (0 ==
(temp &
if (0 == (temp & (I2C_CNTRL2_WR_STATUS | I2C_CNTRL2_START))) {
if (0 == (temp &
(I2C_CNTRL2_I2C_CFGERR |
I2C_CNTRL2_I2C_TO_ERR))) {
op_status = TSI108_I2C_SUCCESS;