linux-kernel - RE: [PATCH V5 09/15] spi: Add stacked and parallel memories support in SPI core

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Message-ID: <BN7PR12MB2802992D71DDA252B008AFDADCB79@BN7PR12MB2802.namprd12.prod.outlook.com>
Date:   Tue, 7 Mar 2023 11:37:50 +0000
From:   "Mahapatra, Amit Kumar" <amit.kumar-mahapatra@....com>
To:     Tudor Ambarus <tudor.ambarus@...aro.org>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "miquel.raynal@...tlin.com" <miquel.raynal@...tlin.com>,
        "richard@....at" <richard@....at>,
        "vigneshr@...com" <vigneshr@...com>,
        "jic23@...nel.org" <jic23@...nel.org>,
        "pratyush@...nel.org" <pratyush@...nel.org>
CC:     "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH V5 09/15] spi: Add stacked and parallel memories support
 in SPI core



> -----Original Message-----
> From: Tudor Ambarus <tudor.ambarus@...aro.org>
> Sent: Tuesday, March 7, 2023 9:51 AM
> To: Mahapatra, Amit Kumar <amit.kumar-mahapatra@....com>;
> broonie@...nel.org; miquel.raynal@...tlin.com; richard@....at;
> vigneshr@...com; jic23@...nel.org; pratyush@...nel.org
> Cc: linux-spi@...r.kernel.org; linux-mtd@...ts.infradead.org; linux-
> kernel@...r.kernel.org
> Subject: Re: [PATCH V5 09/15] spi: Add stacked and parallel memories
> support in SPI core
> 
> There were too many recipients in To and Cc and I couldn't reply to the
> email. I whipped off the Cc filed and most of the people from To and added
> the lists in Cc.
> 
> On 3/6/23 17:21, Amit Kumar Mahapatra wrote:	
> > Multi CS support using GPIO is not tested due to unavailability of
> > necessary hardware setup.
> 
> Please don't add code that is not used or tested.

During our discussion on the RFC, Mark had suggested to add multi-cs support 
via GPIO as well. We had agreed to add multi-cs support via GPIO, but had also 
mentioned that we don't have a hardware setup to test the CS GPIO use case.
https://lore.kernel.org/linux-arm-kernel/BN7PR12MB2802E2A9079E505932832270DC979@BN7PR12MB2802.namprd12.prod.outlook.com/

Regards,
Amit

> 
> Cheers,
> ta