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    Subject[PATCH 13/17] i2c: omap: bus: add a receiver flag
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    that way we can ignore TX IRQs while in receiver
    mode and ignore RX IRQs while in transmitter mode.

    Signed-off-by: Felipe Balbi <balbi@ti.com>
    ---
    drivers/i2c/busses/i2c-omap.c | 9 +++++++++
    1 file changed, 9 insertions(+)

    diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
    index 43d3289..fad5f6f 100644
    --- a/drivers/i2c/busses/i2c-omap.c
    +++ b/drivers/i2c/busses/i2c-omap.c
    @@ -199,6 +199,7 @@ struct omap_i2c_dev {
    */
    u8 rev;
    unsigned b_hw:1; /* bad h/w fixes */
    + unsigned receiver:1; /* true when we're in receiver mode */
    u16 iestate; /* Saved interrupt register */
    u16 pscstate;
    u16 scllstate;
    @@ -538,6 +539,7 @@ static int omap_i2c_xfer_msg(struct i2c_adapter *adap,

    init_completion(&dev->cmd_complete);
    dev->cmd_err = 0;
    + dev->receiver = !!(msg->flags & I2C_M_RD);

    w = OMAP_I2C_CON_EN | OMAP_I2C_CON_MST | OMAP_I2C_CON_STT;

    @@ -880,6 +882,13 @@ omap_i2c_isr(int this_irq, void *dev_id)
    stat = omap_i2c_read_reg(dev, OMAP_I2C_STAT_REG);
    stat &= bits;

    + /* If we're in receiver mode, ignore XDR/XRDY */
    + if (dev->receiver) {
    + stat &= ~(OMAP_I2C_STAT_XDR | OMAP_I2C_STAT_XRDY);
    + } else {
    + stat &= ~(OMAP_I2C_STAT_RDR | OMAP_I2C_STAT_RRDY);
    + }
    +
    if (!stat) {
    /* my work here is done */
    omap_i2c_complete_cmd(dev, err);
    --
    1.7.10.4


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