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| author | Jean Delvare <khali@linux-fr.org> | 2009-11-07 13:10:46 +0100 |
|---|---|---|
| committer | Jean Delvare <khali@linux-fr.org> | 2009-11-07 13:10:46 +0100 |
| commit | afa08974fe80c198b8650f73ed8ab59135ca10d0 (patch) | |
| tree | b649e06dc4cb9fa10b87f1914f05c6ca2ba0d910 /drivers/net | |
| parent | 3806e94b0148350c72f9a3214274026b6ca03f49 (diff) | |
| download | linux-stable-afa08974fe80c198b8650f73ed8ab59135ca10d0.tar.gz linux-stable-afa08974fe80c198b8650f73ed8ab59135ca10d0.tar.bz2 linux-stable-afa08974fe80c198b8650f73ed8ab59135ca10d0.zip | |
i2c: Add an interface to lock/unlock an I2C bus segment
Some drivers need to be able to prevent access to an I2C bus segment
for a specific period of time. Add an interface for them to do so
without twiddling with i2c-core internals.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/sfc/sfe4001.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/sfc/sfe4001.c b/drivers/net/sfc/sfe4001.c index cee00ad49b57..49eb91b5f50c 100644 --- a/drivers/net/sfc/sfe4001.c +++ b/drivers/net/sfc/sfe4001.c @@ -188,7 +188,7 @@ static int sfn4111t_reset(struct efx_nic *efx) efx_oword_t reg; /* GPIO 3 and the GPIO register are shared with I2C, so block that */ - mutex_lock(&efx->i2c_adap.bus_lock); + i2c_lock_adapter(&efx->i2c_adap); /* Pull RST_N (GPIO 2) low then let it up again, setting the * FLASH_CFG_1 strap (GPIO 3) appropriately. Only change the @@ -204,7 +204,7 @@ static int sfn4111t_reset(struct efx_nic *efx) falcon_write(efx, ®, GPIO_CTL_REG_KER); msleep(1); - mutex_unlock(&efx->i2c_adap.bus_lock); + i2c_unlock_adapter(&efx->i2c_adap); ssleep(1); return 0; |