diff options
| author | Chris David <cd@chrisdavid.com> | 2007-10-13 23:56:33 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@hyperion.delvare> | 2007-10-13 23:56:33 +0200 |
| commit | a202707e71ff16d5e3a92f40eeaa41f3099dd8c5 (patch) | |
| tree | 7c43b75d4cc52fdf9f3a8a3b08a0b235e8529c24 /drivers/i2c/busses/i2c-nforce2.c | |
| parent | 6662cbb989ee71712176570759bdc4e596aed417 (diff) | |
i2c-au1550: Fix a misused register problem
Fix a "mis-used register" problem on the AMD MIPS Alchemy au1550
I2C interface.
In summary, the programmable serial controller seems to hang the kernel
when I send a single 'address' byte on the I2C bus. The patch
essentially uses the PSC_SMBSTAT register's TE (transmit FIFO empty)
bit to check when the transmit FIFO is empty, instead of using the
PSC_SMBEVNT register's TU (transmit underflow) bit. Using the TE bit
fixed the hang problem.
Signed-off-by: Chris David <cd@chrisdavid.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/i2c/busses/i2c-nforce2.c')
0 files changed, 0 insertions, 0 deletions