linux-kernel - Re: [PATCH v1 3/7] spi: qspi-tegra: Add support for Tegra210 QSPI controller

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Date:   Tue, 8 Dec 2020 08:44:24 +0100
From:   Lukas Wunner <lukas@...ner.de>
To:     Sowjanya Komatineni <skomatineni@...dia.com>
Cc:     thierry.reding@...il.com, jonathanh@...dia.com, broonie@...nel.org,
        linux-spi@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 3/7] spi: qspi-tegra: Add support for Tegra210 QSPI
 controller

On Mon, Dec 07, 2020 at 04:14:53PM -0800, Sowjanya Komatineni wrote:
> On 12/6/20 10:16 AM, Lukas Wunner wrote:
> > However, be sure to use the devm variant to *allocate* the SPI controller,
> > i.e. use devm_spi_alloc_master() instead of spi_alloc_master().
> 
> Thanks Lukas. I see devm_spi_alloc_master() in 5.4 but not from 5.5

devm_spi_alloc_master() was introduced in v5.10-rc5 with commit
5e844cc37a5c and then backported to 5.9-stable and 5.4-stable.

Patches are pending to also backport it to 4.19-stable, 4.14-stable,
4.9-stable and 4.4-stable.

If your development branch is based on v5.5, just cherry-pick
5e844cc37a5c and you should be good to go.

Thanks,

Lukas