commit: http://blackfin.uclinux.org/git/?p=linux-kernel;a=commitdiff;h=3471ba1938870391aec4062fe62ad8e377438f9c branch: http://blackfin.uclinux.org/git/?p=linux-kernel;a=shortlog;h=refs/heads/trunk
The former patch may fail correct I2C transfer because interrupt status bits XMTSERV and RCVSERV are not checked when MCOMP interrupt is handled. Signed-off-by: Sonic Zhang <[email protected]> --- drivers/i2c/busses/i2c-bfin-twi.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/i2c/busses/i2c-bfin-twi.c b/drivers/i2c/busses/i2c-bfin-twi.c index fcb041d..b462e95 100644 --- a/drivers/i2c/busses/i2c-bfin-twi.c +++ b/drivers/i2c/busses/i2c-bfin-twi.c @@ -201,7 +201,8 @@ static void bfin_twi_handle_interrupt(struct bfin_twi_iface *iface, return; } if (twi_int_status & MCOMP) { - if ((read_MASTER_CTL(iface) & MEN) == 0 && + if (twi_int_status & (XMTSERV|RCVSERV) && + (read_MASTER_CTL(iface) & MEN) == 0 && (iface->cur_mode == TWI_I2C_MODE_REPEAT || iface->cur_mode == TWI_I2C_MODE_COMBINED)) { iface->result = -1;
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