Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: Re: [RESEND PATCH v3 7/8] mtd: spi-nor: Convert cadence-quadspi to
 use spi-mem framework
To:     Vignesh Raghavendra <vigneshr@ti.com>,
        Tudor Ambarus <tudor.ambarus@microchip.com>,
        Mark Brown <broonie@kernel.org>
Cc:     Boris Brezillon <bbrezillon@kernel.org>,
        Ramuthevar Vadivel Murugan 
        <vadivel.muruganx.ramuthevar@linux.intel.com>,
        linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-spi@vger.kernel.org, simon.k.r.goldschmidt@gmail.com,
        dinguyen@kernel.org, marex@denx.de
References: <20200601070444.16923-1-vigneshr@ti.com>
 <20200601070444.16923-8-vigneshr@ti.com>
 <a86aebbc-943d-6cb3-191c-797709692f80@siemens.com>
 <00394d38-20d9-60a5-0068-5f9f023520c2@ti.com>
From:   Jan Kiszka <jan.kiszka@siemens.com>
Message-ID: <26caa2e5-6c6e-09a3-902e-843cfee40158@siemens.com>
Date:   Mon, 24 Aug 2020 14:06:41 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101
 Thunderbird/68.11.0
MIME-Version: 1.0
In-Reply-To: <00394d38-20d9-60a5-0068-5f9f023520c2@ti.com>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On 24.08.20 13:44, Vignesh Raghavendra wrote:
> Hi Jan,
> 
> On 8/24/20 11:25 AM, Jan Kiszka wrote:
> [...]
> 
>>> +MODULE_AUTHOR("Vignesh Raghavendra <vigneshr@ti.com>");
>>>
>> On the AM65x, this changes mtd->name (thus mtd-id for
>> parser/cmdlinepart) from 47040000.spi.0 to spi7.0. The besides having to
>> deal with both names now, "spi7" sounds like it could easily change
>> again if someone plugs or unplugs some other SPI device. Is this intended?
>>
> 
> You could use DT aliases to make sure OSPI0 is always at given bus num
> (say spi7):
> 
>         aliases {
>                 spi7 = &ospi0;
>         };

Ah, looks like this is a common pattern... Thanks, will try that.

Jan

-- 
Siemens AG, Corporate Technology, CT RDA IOT SES-DE
Corporate Competence Center Embedded Linux