linux-kernel - Re: [PATCH v2 2/2] mtd: rawnand: Add NAND controller support on Intel LGM SoC

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Date:   Mon, 20 Apr 2020 16:51:58 +0800
From:   "Ramuthevar, Vadivel MuruganX" 
        <vadivel.muruganx.ramuthevar@...ux.intel.com>
To:     Boris Brezillon <boris.brezillon@...labora.com>
Cc:     linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
        devicetree@...r.kernel.org, miquel.raynal@...tlin.com,
        richard@....at, vigneshr@...com, arnd@...db.de,
        brendanhiggins@...gle.com, tglx@...utronix.de,
        anders.roxell@...aro.org, masonccyang@...c.com.tw,
        piotrs@...ence.com, robh+dt@...nel.org, linux-mips@...r.kernel.org,
        hauke.mehrtens@...el.com, andriy.shevchenko@...el.com,
        qi-ming.wu@...el.com, cheol.yong.kim@...el.com
Subject: Re: [PATCH v2 2/2] mtd: rawnand: Add NAND controller support on Intel
 LGM SoC

   On 20/4/2020 3:40 pm, Boris Brezillon wrote:

> On Mon, 20 Apr 2020 12:18:34 +0800
> "Ramuthevar, Vadivel MuruganX"
> <vadivel.muruganx.ramuthevar@...ux.intel.com> wrote:
>
>
>>>> diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
>>>> index a80a46bb5b8b..9efc4bbaf4a3 100644
>>>> --- a/drivers/mtd/nand/raw/Kconfig
>>>> +++ b/drivers/mtd/nand/raw/Kconfig
>>>> @@ -457,6 +457,13 @@ config MTD_NAND_CADENCE
>>>>    	  Enable the driver for NAND flash on platforms using a Cadence NAND
>>>>    	  controller.
>>>>    
>>>> +config MTD_NAND_INTEL_LGM
>>>> +	tristate "Support for NAND controller on Intel LGM SoC"
>>>> +	depends on X86
>>> Do we have a hard dependency on x86 here? Maybe 'depends on HAS_MMIO'
>>> would be enough.
>> yes Boris, we have hard dependency on x86.
> Given that the driver will also be used on a MIPS platform I would say
> no :P. Just to be clear, I was suggesting to replace the soon to emerge
>
> 	depends on X86 || MIPS || COMPILE_TEST
> 	depends HAS_IOMEM
>
> rule by
>
> 	depends on OF || COMPILE_TEST
> 	depends HAS_IOMEM

Thank you for the suggestion !

Yes, you are right since MIPS based SoCs also using the same driver, so 
we can add the above rule.

Regards
Vadivel