linux-kernel - Re: [PATCH V5 1/4] spi: tegra114: add support for gpio based CS

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Message-ID: <cf4bd167-49b8-5649-a2e2-7bf5ddcc6e2d@nvidia.com>
Date:   Tue, 14 May 2019 10:33:40 +0100
From:   Jon Hunter <jonathanh@...dia.com>
To:     Sowjanya Komatineni <skomatineni@...dia.com>,
        <thierry.reding@...il.com>, <ldewangan@...dia.com>,
        <broonie@...nel.org>
CC:     <linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-spi@...r.kernel.org>
Subject: Re: [PATCH V5 1/4] spi: tegra114: add support for gpio based CS


On 14/05/2019 06:03, Sowjanya Komatineni wrote:
> This patch adds support for GPIO based CS control through SPI core
> function spi_set_cs.
> 
> Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>
Can you elaborate on the use-case where this is needed? I am curious
what platforms are using this and why they would not use the dedicated
CS signals.

Cheers
Jon

-- 
nvpublic