Previously we didn't disable the flash's quad mode when it's removed Then comes the problem that if we next time load the flash in SPI/Dual mode, it will not be correctly enabled as the quad enable bits has not been cleared. I validated the condition on Cypress s25fs128s1. This series adds the capability to disable the flash's quad mode. And restore the flash when it's removed in spi_nor_restore(). Yicong Yang (2): mtd: spi-nor: Add capability to disable flash quad mode mtd: spi-nor: Disable the flash quad mode in spi_nor_restore() drivers/mtd/spi-nor/core.c | 57 +++++++++++++++++++++++++++++++--------------- drivers/mtd/spi-nor/core.h | 10 ++++---- 2 files changed, 44 insertions(+), 23 deletions(-) -- 2.8.1 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/