From: Zhiqiang Hou <Zhiqiang.Hou@nxp.com>
To: <linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
<computersforpeace@gmail.com>, <dwmw2@infradead.org>,
<boris.brezillon@free-electrons.com>, <marek.vasut@gmail.com>,
<richard@nod.at>, <cyrille.pitchen@wedev4u.fr>
Cc: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Subject: [PATCH 2/2] mtd: m25p80: restore the addressing mode when stop using the flash
Date: Fri, 24 Nov 2017 18:08:48 +0800 [thread overview]
Message-ID: <20171124100848.1828-3-Zhiqiang.Hou@nxp.com> (raw)
In-Reply-To: <20171124100848.1828-1-Zhiqiang.Hou@nxp.com>
From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Add .shutdown function to restore the addressing mode in reboot
process, and add the same operation to the .remove function.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
---
drivers/mtd/devices/m25p80.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index dbe6a1de2bb8..867bd2d5a267 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -307,10 +307,17 @@ static int m25p_remove(struct spi_device *spi)
{
struct m25p *flash = spi_get_drvdata(spi);
+ spi_nor_restore_addr_mode(&flash->spi_nor);
/* Clean up MTD stuff. */
return mtd_device_unregister(&flash->spi_nor.mtd);
}
+static void m25p_shutdown(struct spi_device *spi)
+{
+ struct m25p *flash = spi_get_drvdata(spi);
+
+ spi_nor_restore_addr_mode(&flash->spi_nor);
+}
/*
* Do NOT add to this array without reading the following:
*
@@ -386,6 +393,7 @@ static struct spi_driver m25p80_driver = {
.id_table = m25p_ids,
.probe = m25p_probe,
.remove = m25p_remove,
+ .shutdown = m25p_shutdown,
/* REVISIT: many of these chips have deep power-down modes, which
* should clearly be entered on suspend() to minimize power use.
--
2.14.1
next prev parent reply other threads:[~2017-11-24 10:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-24 10:08 [PATCH 0/2] mtd: m25p80: restore the addressing mode when stop using the flash Zhiqiang Hou
2017-11-24 10:08 ` [PATCH 1/2] mtd: spi-nor: add a API to restore the addressing mode Zhiqiang Hou
2017-12-01 8:52 ` Cyrille Pitchen
2017-12-01 10:06 ` Z.q. Hou
2017-11-24 10:08 ` Zhiqiang Hou [this message]
2017-12-01 8:57 ` [PATCH 2/2] mtd: m25p80: restore the addressing mode when stop using the flash Cyrille Pitchen
2017-12-01 10:06 ` Z.q. Hou
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