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| author | David S. Miller <davem@davemloft.net> | 2012-05-07 23:35:40 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-05-07 23:35:40 -0400 |
| commit | 0d6c4a2e4641bbc556dd74d3aa158c413a972492 (patch) | |
| tree | da944af17682659bb433dc2282dcb48380c14cd1 /drivers/i2c/busses/i2c-tegra.c | |
| parent | 6e06c0e2347ec79d0bd5702b2438fe883f784545 (diff) | |
| parent | 1c430a727fa512500a422ffe4712166c550ea06a (diff) | |
| download | op-kernel-dev-0d6c4a2e4641bbc556dd74d3aa158c413a972492.zip op-kernel-dev-0d6c4a2e4641bbc556dd74d3aa158c413a972492.tar.gz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/intel/e1000e/param.c
drivers/net/wireless/iwlwifi/iwl-agn-rx.c
drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c
drivers/net/wireless/iwlwifi/iwl-trans.h
Resolved the iwlwifi conflict with mainline using 3-way diff posted
by John Linville and Stephen Rothwell. In 'net' we added a bug
fix to make iwlwifi report a more accurate skb->truesize but this
conflicted with RX path changes that happened meanwhile in net-next.
In e1000e a conflict arose in the validation code for settings of
adapter->itr. 'net-next' had more sophisticated logic so that
logic was used.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/i2c/busses/i2c-tegra.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index e978635..55e5ea6 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -516,6 +516,14 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev, if (likely(i2c_dev->msg_err == I2C_ERR_NONE)) return 0; + /* + * NACK interrupt is generated before the I2C controller generates the + * STOP condition on the bus. So wait for 2 clock periods before resetting + * the controller so that STOP condition has been delivered properly. + */ + if (i2c_dev->msg_err == I2C_ERR_NO_ACK) + udelay(DIV_ROUND_UP(2 * 1000000, i2c_dev->bus_clk_rate)); + tegra_i2c_init(i2c_dev); if (i2c_dev->msg_err == I2C_ERR_NO_ACK) { if (msg->flags & I2C_M_IGNORE_NAK) |
