linux-kernel - Re: [PATCH v5 3/3] mtd: spinand: add SPI-NAND MTD resume handler

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Message-Id: <20210611190243.226413-1-miquel.raynal@bootlin.com>
Date:   Fri, 11 Jun 2021 21:02:43 +0200
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     patrice.chotard@...s.st.com, Mark Brown <broonie@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        linux-mtd@...ts.infradead.org,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        linux-spi@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Pratyush Yadav <p.yadav@...com>
Cc:     christophe.kerello@...s.st.com
Subject: Re: [PATCH v5 3/3] mtd: spinand: add SPI-NAND MTD resume handler

On Wed, 2021-06-02 at 09:49:13 UTC,  wrote:
> From: Patrice Chotard <patrice.chotard@...s.st.com>
> 
> After power up, all SPI NAND's blocks are locked. Only read operations
> are allowed, write and erase operations are forbidden.
> The SPI NAND framework unlocks all the blocks during its initialization.
> 
> During a standby low power, the memory is powered down, losing its
> configuration.
> During the resume, the QSPI driver state is restored but the SPI NAND
> framework does not reconfigured the memory.
> 
> This patch adds SPI-NAND MTD PM handlers for resume ops.
> SPI NAND resume op re-initializes SPI NAND flash to its probed state.
> 
> Signed-off-by: Christophe Kerello <christophe.kerello@...s.st.com>
> Signed-off-by: Patrice Chotard <patrice.chotard@...s.st.com>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.

Miquel