i2c: omap: bus: add a receiver flag
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> [Remove unnecessary braces] Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
This commit is contained in:
Родитель
ac79e4b249
Коммит
079d8af24b
|
@ -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;
|
||||
|
@ -492,6 +493,7 @@ 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;
|
||||
|
||||
|
@ -837,6 +839,12 @@ 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 */
|
||||
return IRQ_HANDLED;
|
||||
|
|
Загрузка…
Ссылка в новой задаче