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authorVirupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>2011-05-13 06:30:53 -0400
committerBen Dooks <ben-linux@fluff.org>2011-05-24 19:20:54 -0400
commit0511f643cbe6990daf4b53b1268b5c2ea28d1733 (patch)
tree28853979c95e16aa8b6b8e2d88f595a3553e71dd /drivers/i2c
parentb5e890f7e70707d1e10e8d4844806d2223e8b36d (diff)
i2c-nomadik: reset the hw after status check
In case of I2C timeout, reset the HW only after the HW status is read, otherwise the staus will be lost. Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-nomadik.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c
index b2de1a56dc8d..fa7b10639ce2 100644
--- a/drivers/i2c/busses/i2c-nomadik.c
+++ b/drivers/i2c/busses/i2c-nomadik.c
@@ -428,10 +428,9 @@ static int read_i2c(struct nmk_i2c_dev *dev)
428 } 428 }
429 429
430 if (timeout == 0) { 430 if (timeout == 0) {
431 /* controller has timedout, re-init the h/w */ 431 /* Controller timed out */
432 dev_err(&dev->pdev->dev, "read from slave 0x%x timed out\n", 432 dev_err(&dev->pdev->dev, "read from slave 0x%x timed out\n",
433 dev->cli.slave_adr); 433 dev->cli.slave_adr);
434 (void) init_hw(dev);
435 status = -ETIMEDOUT; 434 status = -ETIMEDOUT;
436 } 435 }
437 return status; 436 return status;
@@ -516,10 +515,9 @@ static int write_i2c(struct nmk_i2c_dev *dev)
516 } 515 }
517 516
518 if (timeout == 0) { 517 if (timeout == 0) {
519 /* controller has timedout, re-init the h/w */ 518 /* Controller timed out */
520 dev_err(&dev->pdev->dev, "write to slave 0x%x timed out\n", 519 dev_err(&dev->pdev->dev, "write to slave 0x%x timed out\n",
521 dev->cli.slave_adr); 520 dev->cli.slave_adr);
522 (void) init_hw(dev);
523 status = -ETIMEDOUT; 521 status = -ETIMEDOUT;
524 } 522 }
525 523
@@ -638,6 +636,8 @@ static int nmk_i2c_xfer(struct i2c_adapter *i2c_adap,
638 abort_causes[cause]); 636 abort_causes[cause]);
639 } 637 }
640 638
639 (void) init_hw(dev);
640
641 status = status ? status : dev->result; 641 status = status ? status : dev->result;
642 642
643 break; 643 break;