linux-kernel - Re: [PATCH v2 1/2] i2c: add PEC error event

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Date:   Thu, 23 Jul 2020 22:16:34 +0200
From:   Wolfram Sang <wsa@...nel.org>
To:     Rayagonda Kokatanur <rayagonda.kokatanur@...adcom.com>
Cc:     linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Lori Hikichi <lori.hikichi@...adcom.com>,
        Robert Richter <rrichter@...vell.com>,
        Nishka Dasgupta <nishkadg.linux@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 1/2] i2c: add PEC error event

On Fri, Jul 17, 2020 at 02:31:54PM +0530, Rayagonda Kokatanur wrote:
> Add new event I2C_SLAVE_PEC_ERR to list of slave events.
> This event will be used by slave bus driver to indicate
> PEC error to slave client or backend driver.
> 
> Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@...adcom.com>

Definately needs documentation in Documentation/i2c/slave-interface.rst.

What is a backend supposed to do? Does 'value' have a meaning?

> ---
>  include/linux/i2c.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/linux/i2c.h b/include/linux/i2c.h
> index b8b8963f8bb9..e04acd04eb48 100644
> --- a/include/linux/i2c.h
> +++ b/include/linux/i2c.h
> @@ -370,6 +370,7 @@ enum i2c_slave_event {
>  	I2C_SLAVE_READ_PROCESSED,
>  	I2C_SLAVE_WRITE_RECEIVED,
>  	I2C_SLAVE_STOP,
> +	I2C_SLAVE_PEC_ERR,
>  };
>  
>  int i2c_slave_register(struct i2c_client *client, i2c_slave_cb_t slave_cb);
> -- 
> 2.17.1
> 

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