diff options
-rw-r--r-- | drivers/i2c/busses/i2c-s3c2410.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 1305ef190fc1..7ad22c53564d 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c | |||
@@ -323,7 +323,17 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) | |||
323 | * end of the message, and if so, work out what to do | 323 | * end of the message, and if so, work out what to do |
324 | */ | 324 | */ |
325 | 325 | ||
326 | if (!(i2c->msg->flags & I2C_M_IGNORE_NAK)) { | ||
327 | if (iicstat & S3C2410_IICSTAT_LASTBIT) { | ||
328 | dev_dbg(i2c->dev, "WRITE: No Ack\n"); | ||
329 | |||
330 | s3c24xx_i2c_stop(i2c, -ECONNREFUSED); | ||
331 | goto out_ack; | ||
332 | } | ||
333 | } | ||
334 | |||
326 | retry_write: | 335 | retry_write: |
336 | |||
327 | if (!is_msgend(i2c)) { | 337 | if (!is_msgend(i2c)) { |
328 | byte = i2c->msg->buf[i2c->msg_ptr++]; | 338 | byte = i2c->msg->buf[i2c->msg_ptr++]; |
329 | writeb(byte, i2c->regs + S3C2410_IICDS); | 339 | writeb(byte, i2c->regs + S3C2410_IICDS); |
@@ -377,17 +387,6 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) | |||
377 | * going to do any more read/write | 387 | * going to do any more read/write |
378 | */ | 388 | */ |
379 | 389 | ||
380 | if (!(i2c->msg->flags & I2C_M_IGNORE_NAK) && | ||
381 | !(is_msglast(i2c) && is_lastmsg(i2c))) { | ||
382 | |||
383 | if (iicstat & S3C2410_IICSTAT_LASTBIT) { | ||
384 | dev_dbg(i2c->dev, "READ: No Ack\n"); | ||
385 | |||
386 | s3c24xx_i2c_stop(i2c, -ECONNREFUSED); | ||
387 | goto out_ack; | ||
388 | } | ||
389 | } | ||
390 | |||
391 | byte = readb(i2c->regs + S3C2410_IICDS); | 390 | byte = readb(i2c->regs + S3C2410_IICDS); |
392 | i2c->msg->buf[i2c->msg_ptr++] = byte; | 391 | i2c->msg->buf[i2c->msg_ptr++] = byte; |
393 | 392 | ||