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Message-Id: <1325555451-4697-6-git-send-email-jeffrey.t.kirsher@intel.com> Date: Mon, 2 Jan 2012 17:50:49 -0800 From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> To: davem@...emloft.net Cc: Emil Tantilov <emil.s.tantilov@...el.com>, netdev@...r.kernel.org, gospo@...hat.com, sassmann@...hat.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com> Subject: [net-next 5/7] ixgbe: add write flush in ixgbe_clock_out_i2c_byte() From: Emil Tantilov <emil.s.tantilov@...el.com> I2C access is timing critical. Always do a write flush after writing to the I2CCTL register. Signed-off-by: Emil Tantilov <emil.s.tantilov@...el.com> Tested-by: Phil Schmitt <phillip.j.schmitt@...el.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> --- 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; } -- 1.7.7.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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