From: Miquel Raynal <miquel.raynal@bootlin.com>
To: patrice.chotard@foss.st.com, Mark Brown <broonie@kernel.org>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Vignesh Raghavendra <vigneshr@ti.com>,
Boris Brezillon <boris.brezillon@collabora.com>,
linux-mtd@lists.infradead.org,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
linux-spi@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Pratyush Yadav <p.yadav@ti.com>
Cc: christophe.kerello@foss.st.com
Subject: Re: [PATCH v5 3/3] mtd: spinand: add SPI-NAND MTD resume handler
Date: Fri, 11 Jun 2021 21:02:43 +0200 [thread overview]
Message-ID: <20210611190243.226413-1-miquel.raynal@bootlin.com> (raw)
In-Reply-To: <20210602094913.26472-4-patrice.chotard@foss.st.com>
On Wed, 2021-06-02 at 09:49:13 UTC, wrote:
> From: Patrice Chotard <patrice.chotard@foss.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@foss.st.com>
> Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.
Miquel
prev parent reply other threads:[~2021-06-11 19:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-02 9:49 [PATCH v5 0/3] mtd: spinand: add SPI-NAND MTD resume handler patrice.chotard
2021-06-02 9:49 ` [PATCH v5 1/3] mtd: spinand: add spinand_read_cfg() helper patrice.chotard
2021-06-11 19:02 ` Miquel Raynal
2021-06-02 9:49 ` [PATCH v5 2/3] mtd: spinand: Add spinand_init_flash() helper patrice.chotard
2021-06-11 19:02 ` Miquel Raynal
2021-06-02 9:49 ` [PATCH v5 3/3] mtd: spinand: add SPI-NAND MTD resume handler patrice.chotard
2021-06-11 19:02 ` Miquel Raynal [this message]
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