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spi: intel: Update help text of PCI and Platform drivers

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Modern intel hardware uses controllers that work in hardware
sequencing mode. In this mode, the controller exposes a subset
of operations, like read, write and erase, making it easier
and less error-prone for use.
On the other hand, most of the controllers handled by the
platform driver use software sequencing that exposes the
entire set of operations i.e. exposes the low level SPI-NOR
opcodes to the software for use.
Update PCI and Platform help text with this information.

Signed-off-by: Mauro Lima <mauro.lima@eclypsium.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20230210164158.211065-1-mauro.lima@eclypsium.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Mauro Lima 2023-02-10 13:41:58 -03:00 committed by Mark Brown
parent 3c708a0c4c
commit 2ea9b08a66
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1 changed files with 10 additions and 10 deletions
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drivers/spi/Kconfig
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@ -454,13 +454,12 @@ config SPI_INTEL_PCI
select SPI_INTEL
help
This enables PCI support for the Intel PCH/PCU SPI controller in
master mode. This controller is present in modern Intel hardware
and is used to hold BIOS and other persistent settings. This
driver only supports hardware sequencing mode. Using this
driver it is possible to upgrade BIOS directly from Linux.
Say N here unless you know what you are doing. Overwriting the
SPI flash may render the system unbootable.
master mode. This controller is used to hold BIOS and other
persistent settings. Controllers present in modern Intel hardware
only work in hardware sequencing mode, this means that the
controller exposes a subset of operations that makes it safer to
use. Using this driver it is possible to upgrade BIOS directly
from Linux.
To compile this driver as a module, choose M here: the module
will be called spi-intel-pci.
@ -473,9 +472,10 @@ config SPI_INTEL_PLATFORM
help
This enables platform support for the Intel PCH/PCU SPI
controller in master mode that is used to hold BIOS and other
persistent settings. Most of these controllers are using
software sequencing mode. Using this driver it is possible to
upgrade BIOS directly from Linux.
persistent settings. Most of these controllers work in
software sequencing mode, which means that the controller
exposes the low level SPI-NOR opcodes to the software. Using
this driver it is possible to upgrade BIOS directly from Linux.
Say N here unless you know what you are doing. Overwriting the
SPI flash may render the system unbootable.