On Sat, Jun 11, 2022 at 12:56:04AM +0900, Tokunori Ikegami wrote:
Since commit dfeae1073583("mtd: cfi_cmdset_0002: Change write buffer to check correct value") buffered writes fail on S29GL064N. This is because, on S29GL064N, reads return 0xFF at the end of DQ polling for write completion, where as, chip_good() check expects actual data written to the last location to be returned post DQ polling completion. Fix is to revert to using chip_good() for S29GL064N which only checks for DQ lines to settle down to determine write completion.
Link: https://lore.kernel.org/r/b687c259-6413-26c9-d4c9-b3afa69ea124@pengutronix.d... Fixes: dfeae1073583("mtd: cfi_cmdset_0002: Change write buffer to check correct value") Cc: stable@vger.kernel.org Signed-off-by: Tokunori Ikegami ikegami.t@gmail.com Acked-by: Vignesh Raghavendra vigneshr@ti.com Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com Link: https://lore.kernel.org/linux-mtd/20220323170458.5608-3-ikegami.t@gmail.com
drivers/mtd/chips/cfi_cmdset_0002.c | 42 +++++++++++++++++++++++------ include/linux/mtd/cfi.h | 1 + 2 files changed, 35 insertions(+), 8 deletions(-)
All now queued up, thanks.
greg k-h