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/openbmc/linux/drivers/mtd/devices/ |
H A D | mchp23k256.c | 14f89e08 Wed Oct 30 06:39:57 CDT 2019 Angelo Dureghello <angelo.dureghello@timesys.com> mtd: devices: fix mchp23k256 read and write
Due to the use of sizeof(), command size set for the spi transfer was wrong. Driver was sending and receiving always 1 byte less and especially on write, it was hanging.
echo -n -e "\\x1\\x2\\x3\\x4" > /dev/mtd1
And read part too now works as expected.
hexdump -C -n16 /dev/mtd1 00000000 01 02 03 04 ab f3 ad c2 ab e3 f4 36 dd 38 04 15 00000010
Fixes: 4379075a870b ("mtd: mchp23k256: Add support for mchp23lcv1024") Signed-off-by: Angelo Dureghello <angelo.dureghello@timesys.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> 14f89e08 Wed Oct 30 06:39:57 CDT 2019 Angelo Dureghello <angelo.dureghello@timesys.com> mtd: devices: fix mchp23k256 read and write Due to the use of sizeof(), command size set for the spi transfer was wrong. Driver was sending and receiving always 1 byte less and especially on write, it was hanging. echo -n -e "\\x1\\x2\\x3\\x4" > /dev/mtd1 And read part too now works as expected. hexdump -C -n16 /dev/mtd1 00000000 01 02 03 04 ab f3 ad c2 ab e3 f4 36 dd 38 04 15 00000010 Fixes: 4379075a870b ("mtd: mchp23k256: Add support for mchp23lcv1024") Signed-off-by: Angelo Dureghello <angelo.dureghello@timesys.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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