android_kernel_xiaomi_sm8450/drivers/mtd/chips
Tokunori Ikegami d09dad0057 mtd: cfi_cmdset_0002: Use chip_ready() for write on S29GL064N
commit 0a8e98305f63deaf0a799d5cf5532cc83af035d1 upstream.

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.de/
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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-09 10:21:25 +02:00
..
cfi_cmdset_0001.c mtd: cfi_cmdset_0001: Support the absence of protection registers 2020-04-30 23:42:57 +05:30
cfi_cmdset_0002.c mtd: cfi_cmdset_0002: Use chip_ready() for write on S29GL064N 2022-06-09 10:21:25 +02:00
cfi_cmdset_0020.c mtd: Convert fallthrough comments into statements 2020-03-30 10:14:54 +02:00
cfi_probe.c mtd: cfi: Add early fixup for S70GL02GS 2018-05-04 09:52:38 +02:00
cfi_util.c mtd: Convert fallthrough comments into statements 2020-03-30 10:14:54 +02:00
chipreg.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
fwh_lock.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gen_probe.c mtd: chips: gen_probe: kill useless initializer in mtd_do_chip_probe() 2019-08-27 17:08:18 +05:30
jedec_probe.c MTD changes: 2018-04-06 12:15:41 -07:00
Kconfig mtd: fixup CFI on ixp4xx 2022-01-20 09:17:52 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
map_absent.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
map_ram.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00
map_rom.c mtd: remove the get_unmapped_area method 2017-11-13 21:39:18 +01:00