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| author | Emil Tantilov <emil.s.tantilov@intel.com> | 2011-11-04 06:43:23 (GMT) |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2012-01-03 01:43:44 (GMT) |
| commit | 176f950d310c81b7fafd96aabe53704f778ce269 (patch) | |
| tree | 305b8b00fa2e925a20b1f354b735a7c10a57e7ad | |
| parent | 52f33af8ac479259f77abab6c535dac93ce654e8 (diff) | |
| download | linux-fsl-qoriq-176f950d310c81b7fafd96aabe53704f778ce269.tar.xz | |
ixgbe: add write flush in ixgbe_clock_out_i2c_byte()
I2C access is timing critical. Always do a write flush after writing
to the I2CCTL register.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c index 8b113e3..7cf1e1f 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c @@ -1457,6 +1457,7 @@ static s32 ixgbe_clock_out_i2c_byte(struct ixgbe_hw *hw, u8 data) i2cctl = IXGBE_READ_REG(hw, IXGBE_I2CCTL); i2cctl |= IXGBE_I2C_DATA_OUT; IXGBE_WRITE_REG(hw, IXGBE_I2CCTL, i2cctl); + IXGBE_WRITE_FLUSH(hw); return status; } |