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| author | Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com> | 2023-06-30 17:22:32 +0300 |
|---|---|---|
| committer | Tudor Ambarus <tudor.ambarus@linaro.org> | 2023-07-13 05:27:02 +0300 |
| commit | cfc2928cb213d5c20b6313abb2d603c0c60d7637 (patch) | |
| tree | a6bf0e437305851e21988a4b1883fac54d33d374 /drivers/mtd/spi-nor/swp.c | |
| parent | 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5 (diff) | |
| download | linux-cfc2928cb213d5c20b6313abb2d603c0c60d7637.tar.xz | |
dt-bindings: mtd: jedec, spi-nor: Add DT property to avoid setting SRWD bit in status register
If the WP# signal of the flash device is either not connected or is wrongly
tied to GND (that includes internal pull-downs), and the software sets the
status register write disable (SRWD) bit in the status register then the
status register permanently becomes read-only. To avoid this added a new
boolean DT property "no-wp". If this property is set in the DT then the
software avoids setting the SRWD during status register write operation.
Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20230630142233.63585-2-amit.kumar-mahapatra@amd.com
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Diffstat (limited to 'drivers/mtd/spi-nor/swp.c')
0 files changed, 0 insertions, 0 deletions