58e1a0ef52
[ Upstream commit 7d388551b6888f3725e6c957f472526b35161a5b ]
Some non-jedec compliant flashes (like the Everspin flashes) don't have
an ID at all. Hide the attribute in this case.
Fixes: 36ac022862 ("mtd: spi-nor: add initial sysfs support")
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Link: https://lore.kernel.org/r/20220810220654.1297699-2-michael@walle.cc
Signed-off-by: Sasha Levin <sashal@kernel.org>
35 lines
1.1 KiB
Plaintext
35 lines
1.1 KiB
Plaintext
What: /sys/bus/spi/devices/.../spi-nor/jedec_id
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Date: April 2021
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KernelVersion: 5.14
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Contact: linux-mtd@lists.infradead.org
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Description: (RO) The JEDEC ID of the SPI NOR flash as reported by the
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flash device.
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The attribute is not present if the flash doesn't support
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the "Read JEDEC ID" command (9Fh). This is the case for
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non-JEDEC compliant flashes.
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What: /sys/bus/spi/devices/.../spi-nor/manufacturer
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Date: April 2021
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KernelVersion: 5.14
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Contact: linux-mtd@lists.infradead.org
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Description: (RO) Manufacturer of the SPI NOR flash.
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What: /sys/bus/spi/devices/.../spi-nor/partname
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Date: April 2021
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KernelVersion: 5.14
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Contact: linux-mtd@lists.infradead.org
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Description: (RO) Part name of the SPI NOR flash.
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What: /sys/bus/spi/devices/.../spi-nor/sfdp
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Date: April 2021
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KernelVersion: 5.14
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Contact: linux-mtd@lists.infradead.org
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Description: (RO) This attribute is only present if the SPI NOR flash
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device supports the "Read SFDP" command (5Ah).
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If present, it contains the complete SFDP (serial flash
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discoverable parameters) binary data of the flash.
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