From: Virupax Sadashivpetimath <virupax.sadashivpetimath@xxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxx>
Reviewed-by: Jonas Aberg <jonas.aberg@xxxxxxxxxxxxxx>
Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@xxxxxxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
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 a94445e..dc57c6e 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;
--
1.7.5.1
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