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Date:   Sat, 5 Dec 2020 01:42:40 +0000
From:   Khalil Blaiech <kblaiech@...dia.com>
To:     Arnd Bergmann <arnd@...nel.org>,
        Vadim Pasternak <vadimp@...lanox.com>,
        Wolfram Sang <wsa@...nel.org>,
        Khalil Blaiech <kblaiech@...lanox.com>
CC:     Arnd Bergmann <arnd@...db.de>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Jean Delvare <jdelvare@...e.de>,
        "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] i2c: mlxbf: select CONFIG_I2C_SLAVE



> Subject: [PATCH] i2c: mlxbf: select CONFIG_I2C_SLAVE
> 
> From: Arnd Bergmann <arnd@...db.de>
> 
> If this is not enabled, the interfaces used in this driver do not work:
> 
> drivers/i2c/busses/i2c-mlxbf.c:1888:3: error: implicit declaration of function
> 'i2c_slave_event' [-Werror,-Wimplicit-function-declaration]
>                 i2c_slave_event(slave, I2C_SLAVE_WRITE_REQUESTED, &value);
>                 ^
> drivers/i2c/busses/i2c-mlxbf.c:1888:26: error: use of undeclared identifier
> 'I2C_SLAVE_WRITE_REQUESTED'
>                 i2c_slave_event(slave, I2C_SLAVE_WRITE_REQUESTED, &value);
>                                        ^
> drivers/i2c/busses/i2c-mlxbf.c:1890:32: error: use of undeclared identifier
> 'I2C_SLAVE_WRITE_RECEIVED'
>                 ret = i2c_slave_event(slave, I2C_SLAVE_WRITE_RECEIVED,
>                                              ^
> drivers/i2c/busses/i2c-mlxbf.c:1892:26: error: use of undeclared identifier
> 'I2C_SLAVE_STOP'
>                 i2c_slave_event(slave, I2C_SLAVE_STOP, &value);
>                                        ^
> 
> Fixes: b5b5b32081cd ("i2c: mlxbf: I2C SMBus driver for Mellanox BlueField
> SoC")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  drivers/i2c/busses/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
> index a97a9d058198..a49e0ed4a599 100644
> --- a/drivers/i2c/busses/Kconfig
> +++ b/drivers/i2c/busses/Kconfig
> @@ -734,6 +734,7 @@ config I2C_LPC2K
>  config I2C_MLXBF
>          tristate "Mellanox BlueField I2C controller"
>          depends on MELLANOX_PLATFORM && ARM64
> +	select I2C_SLAVE
>          help
>            Enabling this option will add I2C SMBus support for Mellanox BlueField
>            system.
> --
> 2.27.0

Thank you!

Acked-by: Khalil Blaiech <kblaiech@...dia.com>

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