Re: [PATCH v4 2/5] i2c: i2c-cros-ec-tunnel: Set retries to 3

[Lee Jones <lee.jones@linaro.org>]

On Thu, 18 Sep 2014, Javier Martinez Canillas wrote:

> From: Derek Basehore <dbasehore@chromium.org>
> 
> 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@chromium.org>
> Reviewed-by: Doug Anderson <dianders@chromium.org>
> Acked-by: Wolfram Sang <wsa@the-dreams.de>
> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
> ---
>  drivers/i2c/busses/i2c-cros-ec-tunnel.c | 3 +++
>  1 file changed, 3 insertions(+)

Applied, thanks.

> 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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