Re: [PATCH v4 03/14] i2c-octeon: Change adapter timeout and retry default values

From: Wolfram Sang
Date: Wed Mar 23 2016 - 15:55:25 EST


On Fri, Mar 18, 2016 at 09:46:28AM +0100, Jan Glauber wrote:
> Convert the adapter timeout to 2 ms instead of a fixed number of
> jiffies and set retries to 10.

You describe what you change, but not why this is needed. Why 10
retries? And shouldn't that be 20ms seeing the HZ/50 ?

Also, please use "i2c: octeon: " as prefix in the subject.

Thanks,

Wolfram

>
> Signed-off-by: Jan Glauber <jglauber@xxxxxxxxxx>
> ---
> drivers/i2c/busses/i2c-octeon.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/i2c/busses/i2c-octeon.c b/drivers/i2c/busses/i2c-octeon.c
> index 9240037..e616e4c 100644
> --- a/drivers/i2c/busses/i2c-octeon.c
> +++ b/drivers/i2c/busses/i2c-octeon.c
> @@ -414,7 +414,6 @@ static struct i2c_adapter octeon_i2c_ops = {
> .owner = THIS_MODULE,
> .name = "OCTEON adapter",
> .algo = &octeon_i2c_algo,
> - .timeout = HZ / 50,
> };
>
> /* calculate and set clock divisors */
> @@ -541,6 +540,8 @@ static int octeon_i2c_probe(struct platform_device *pdev)
> octeon_i2c_set_clock(i2c);
>
> i2c->adap = octeon_i2c_ops;
> + i2c->adap.timeout = msecs_to_jiffies(2);
> + i2c->adap.retries = 10;
> i2c->adap.dev.parent = &pdev->dev;
> i2c->adap.dev.of_node = node;
> i2c_set_adapdata(&i2c->adap, i2c);
> --
> 1.9.1
>

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