linux-kernel - Re: [PATCH] i2c: imx: Allow the driver to be built for ARM64 SoCs such as i.MX8M

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Message-ID: <552fae9f-a28d-3dd4-c169-ab860180e794@kontron.de>
Date:   Wed, 7 Aug 2019 13:25:45 +0000
From:   Schrempf Frieder <frieder.schrempf@...tron.de>
To:     Alexander Stein <alexander.stein@...lbox.org>
CC:     Wolfram Sang <wsa@...-dreams.de>, Jean Delvare <jdelvare@...e.de>,
        "Jarkko Nikula" <jarkko.nikula@...ux.intel.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Juergen Fitschen <jfi@...-embedded.de>,
        Ajay Gupta <ajayg@...dia.com>,
        Shreesha Rajashekar <shreesha.rajashekar@...adcom.com>,
        Vignesh R <vigneshr@...com>, Elie Morisse <syniurge@...il.com>,
        Stefan Roese <sr@...x.de>,
        Paul Cercueil <paul@...pouillou.net>,
        Kamal Dasu <kdasu.kdev@...il.com>,
        "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] i2c: imx: Allow the driver to be built for ARM64 SoCs
 such as i.MX8M

On 07.08.19 14:09, Alexander Stein wrote:
> On Wednesday, August 7, 2019, 1:44:06 PM CEST Schrempf Frieder wrote:
>> From: Frieder Schrempf <frieder.schrempf@...tron.de>
>>
>> The imx I2C controller is used in some ARM64 SoCs such as i.MX8M.
>> To make use of it, append ARM64 to the list of dependencies.
>>
>> Signed-off-by: Frieder Schrempf <frieder.schrempf@...tron.de>
>> ---
>>   drivers/i2c/busses/Kconfig | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
>> index 09367fc014c3..46b653621513 100644
>> --- a/drivers/i2c/busses/Kconfig
>> +++ b/drivers/i2c/busses/Kconfig
>> @@ -664,7 +664,7 @@ config I2C_IMG
>>   
>>   config I2C_IMX
>>   	tristate "IMX I2C interface"
>> -	depends on ARCH_MXC || ARCH_LAYERSCAPE || COLDFIRE
>> +	depends on ARCH_MXC || ARCH_LAYERSCAPE || COLDFIRE || ARM64
> 
> I don't think this should be necessary at all as ARCH_MXC is also available for arm64, see https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/Kconfig.platforms#n167
> I rather wonder why ARCH_MXC is not set. Same for fec.

You're right of course. I somehow managed to mess up my defconfig. I 
started over with a clean config from arch/arm64/configs/defconfig and 
everything seems fine now. Sorry for the noise.

> 
>>   	help
>>   	  Say Y here if you want to use the IIC bus controller on
>>   	  the Freescale i.MX/MXC, Layerscape or ColdFire processors.
>>
> 
> 
> 
>