This interrupt could have been useful for repeated start transfers as the current transfer could be marked as complete while it's processing the final byte of the transfer. But having to use the transaction halt interrupt to safely control repeated start transfers, means handling of the fifo EMPTYING interrupts is no longer necessary.
Handling this interrupt along with Transaction Halt interrupt can cause erratic behaviour. Signed-off-by: Sifan Naeem <[email protected]> --- drivers/i2c/busses/i2c-img-scb.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/i2c/busses/i2c-img-scb.c b/drivers/i2c/busses/i2c-img-scb.c index efad4d7..10141a9 100644 --- a/drivers/i2c/busses/i2c-img-scb.c +++ b/drivers/i2c/busses/i2c-img-scb.c @@ -154,7 +154,6 @@ #define INT_TIMING BIT(18) #define INT_FIFO_FULL_FILLING (INT_FIFO_FULL | INT_FIFO_FILLING) -#define INT_FIFO_EMPTY_EMPTYING (INT_FIFO_EMPTY | INT_FIFO_EMPTYING) /* Level interrupts need clearing after handling instead of before */ #define INT_LEVEL 0x01e00 @@ -176,8 +175,7 @@ INT_WRITE_ACK_ERR | \ INT_FIFO_FULL | \ INT_FIFO_FILLING | \ - INT_FIFO_EMPTY | \ - INT_FIFO_EMPTYING) + INT_FIFO_EMPTY) #define INT_ENABLE_MASK_WAITSTOP (INT_SLAVE_EVENT | \ INT_ADDR_ACK_ERR | \ @@ -910,7 +908,7 @@ static unsigned int img_i2c_auto(struct img_i2c *i2c, } } } else { - if (int_status & INT_FIFO_EMPTY_EMPTYING) { + if (int_status & INT_FIFO_EMPTY) { if (i2c->msg.len == 0) { if (i2c->last_msg) return ISR_WAITSTOP; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
