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authorHou Zhiqiang <Zhiqiang.Hou@nxp.com>2017-12-06 03:53:41 +0100
committerCyrille Pitchen <cyrille.pitchen@wedev4u.fr>2017-12-13 00:36:00 +0100
commit8dee1d971af9af2f7b5f54c2eac4ebd04c5c237c (patch)
tree72bdb63f2ed5a58b2e809f385c92b1b61edaefb1 /Documentation/mtd
parentmtd: spi-nor: Check that BP bits are set properly (diff)
downloadlinux-8dee1d971af9af2f7b5f54c2eac4ebd04c5c237c.tar.xz
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mtd: spi-nor: add an API to restore the status of SPI flash chip
Add this API to restore the status of SPI flash chip to the default such as addressing mode, whenever detach the driver from device or reboot the system. Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
Diffstat (limited to 'Documentation/mtd')
-rw-r--r--Documentation/mtd/spi-nor.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/mtd/spi-nor.txt b/Documentation/mtd/spi-nor.txt
index 548d6306ebca..da1fbff5a24c 100644
--- a/Documentation/mtd/spi-nor.txt
+++ b/Documentation/mtd/spi-nor.txt
@@ -60,3 +60,6 @@ The main API is spi_nor_scan(). Before you call the hook, a driver should
initialize the necessary fields for spi_nor{}. Please see
drivers/mtd/spi-nor/spi-nor.c for detail. Please also refer to fsl-quadspi.c
when you want to write a new driver for a SPI NOR controller.
+Another API is spi_nor_restore(), this is used to restore the status of SPI
+flash chip such as addressing mode. Call it whenever detach the driver from
+device or reboot the system.