spi: intel: Remove DANGEROUS tag from pci driver

Modern CPUs exposes this controller as PCI device that only uses
hardware sequencing capabilities which is safer than software
sequencing.
Leave the platform driver as *DANGEROUS* and update help text since
most of these controllers are using software sequencing.

Signed-off-by: Mauro Lima <mauro.lima@eclypsium.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20230206183143.75274-2-mauro.lima@eclypsium.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 87fc2bd16b7278a8a7e68070fe8df94ef8638694..3a362c450cb6aa19c0858fab319b382d4ccc1247 100644 (file)
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -447,7 +447,7 @@ config SPI_INTEL
        tristate
 
 config SPI_INTEL_PCI
-       tristate "Intel PCH/PCU SPI flash PCI driver (DANGEROUS)"
+       tristate "Intel PCH/PCU SPI flash PCI driver"
        depends on PCI
        depends on X86 || COMPILE_TEST
        depends on SPI_MEM
@@ -455,8 +455,9 @@ config SPI_INTEL_PCI
        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. Using
-         this driver it is possible to upgrade BIOS directly from Linux.
+         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.
@@ -471,10 +472,10 @@ config SPI_INTEL_PLATFORM
        select SPI_INTEL
        help
          This enables platform 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. Using this driver it is possible to upgrade BIOS
-         directly from Linux.
+         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.
 
          Say N here unless you know what you are doing. Overwriting the
          SPI flash may render the system unbootable.