On Mon, 29 Sep 2014, Lee Jones wrote:
> On Thu, 18 Sep 2014, Javier Martinez Canillas wrote:
>
> > From: Derek Basehore <dbasehore@xxxxxxxxxxxx>
> >
> > Since the i2c bus can get wedged on the EC sometimes, set the number of retries
> > to 3. Since we un-wedge the bus immediately after the wedge happens, this is the
> > correct fix since only one transfer will fail.
> >
> > Signed-off-by: Derek Basehore <dbasehore@xxxxxxxxxxxx>
> > Reviewed-by: Doug Anderson <dianders@xxxxxxxxxxxx>
> > Acked-by: Wolfram Sang <wsa@xxxxxxxxxxxxx>
> > Signed-off-by: Javier Martinez Canillas <javier.martinez@xxxxxxxxxxxxxxx>
> > ---
> > drivers/i2c/busses/i2c-cros-ec-tunnel.c | 3 +++
> > 1 file changed, 3 insertions(+)
>
> Applied, thanks.
Wolfram,
Do you want a pull-request?
> > diff --git a/drivers/i2c/busses/i2c-cros-ec-tunnel.c b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
> > index 3c15dcc..97e6369 100644
> > --- a/drivers/i2c/busses/i2c-cros-ec-tunnel.c
> > +++ b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
> > @@ -16,6 +16,8 @@
> > #include <linux/platform_device.h>
> > #include <linux/slab.h>
> >
> > +#define I2C_MAX_RETRIES 3
> > +
> > /**
> > * struct ec_i2c_device - Driver data for I2C tunnel
> > *
> > @@ -290,6 +292,7 @@ static int ec_i2c_probe(struct platform_device *pdev)
> > bus->adap.algo_data = bus;
> > bus->adap.dev.parent = &pdev->dev;
> > bus->adap.dev.of_node = np;
> > + bus->adap.retries = I2C_MAX_RETRIES;
> >
> > err = i2c_add_adapter(&bus->adap);
> > if (err) {
>
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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