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| author | Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> | 2011-05-13 12:30:53 +0200 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2011-05-25 00:20:54 +0100 |
| commit | 0511f643cbe6990daf4b53b1268b5c2ea28d1733 (patch) | |
| tree | 28853979c95e16aa8b6b8e2d88f595a3553e71dd /drivers | |
| parent | b5e890f7e70707d1e10e8d4844806d2223e8b36d (diff) | |
| download | lwn-0511f643cbe6990daf4b53b1268b5c2ea28d1733.tar.gz lwn-0511f643cbe6990daf4b53b1268b5c2ea28d1733.zip | |
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')
| -rw-r--r-- | drivers/i2c/busses/i2c-nomadik.c | 8 |
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) } if (timeout == 0) { - /* controller has timedout, re-init the h/w */ + /* Controller timed out */ dev_err(&dev->pdev->dev, "read from slave 0x%x timed out\n", dev->cli.slave_adr); - (void) init_hw(dev); status = -ETIMEDOUT; } return status; @@ -516,10 +515,9 @@ static int write_i2c(struct nmk_i2c_dev *dev) } if (timeout == 0) { - /* controller has timedout, re-init the h/w */ + /* Controller timed out */ dev_err(&dev->pdev->dev, "write to slave 0x%x timed out\n", dev->cli.slave_adr); - (void) init_hw(dev); status = -ETIMEDOUT; } @@ -638,6 +636,8 @@ static int nmk_i2c_xfer(struct i2c_adapter *i2c_adap, abort_causes[cause]); } + (void) init_hw(dev); + status = status ? status : dev->result; break; |