diff options
| author | Erik Gilling <konkers@android.com> | 2011-04-25 23:32:26 +0200 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2011-05-11 07:45:50 +0200 |
| commit | 2078cf3b2230cc2ee456e67d28dd9a869097e1ff (patch) | |
| tree | c90f021f17e24d4f8e78739110ee1d4a6eca0d4a /drivers/i2c/busses | |
| parent | i2c: tegra: recover from spurious interrupt storm (diff) | |
| download | linux-2078cf3b2230cc2ee456e67d28dd9a869097e1ff.tar.xz linux-2078cf3b2230cc2ee456e67d28dd9a869097e1ff.zip | |
i2c: tegra: fix repeated start handling
A repeated start should be used for all but the last msg in an xfer. The
NOSTART flag is for skipping the START frame (addr/rw)
Signed-off-by: Erik Gilling <konkers@android.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'drivers/i2c/busses')
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index c0b9aa7df0e2..6b69b7007f00 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -451,12 +451,12 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev, packet_header = msg->addr << I2C_HEADER_SLAVE_ADDR_SHIFT; packet_header |= I2C_HEADER_IE_ENABLE; + if (!stop) + packet_header |= I2C_HEADER_REPEAT_START; if (msg->flags & I2C_M_TEN) packet_header |= I2C_HEADER_10BIT_ADDR; if (msg->flags & I2C_M_IGNORE_NAK) packet_header |= I2C_HEADER_CONT_ON_NAK; - if (msg->flags & I2C_M_NOSTART) - packet_header |= I2C_HEADER_REPEAT_START; if (msg->flags & I2C_M_RD) packet_header |= I2C_HEADER_READ; i2c_writel(i2c_dev, packet_header, I2C_TX_FIFO); |