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authorLinus Torvalds <torvalds@linux-foundation.org>2022-03-22 04:33:57 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-22 04:33:57 +0300
commitad9c6ee642a61adae93dfa35582b5af16dc5173a (patch)
tree97c1878834a802847975bb9d51b73a3c8b6a9ae6 /Documentation/driver-api
parentd6ccf45113fb6799885950293401e4b104c9b276 (diff)
parent89b35e3f28514087d3f1e28e8f5634fbfd07c554 (diff)
downloadlinux-ad9c6ee642a61adae93dfa35582b5af16dc5173a.tar.xz
Merge tag 'spi-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown: "The overwhelming bulk of this pull request is a change from Uwe Kleine-König which changes the return type of the remove() function to void as part of some wider work he's doing to do this for all bus types, causing updates to most SPI device drivers. The branch with that on has been cross merged with a couple of other trees which added new SPI drivers this cycle, I'm not expecting any build issues resulting from the change. Otherwise it's been a relatively quiet release with some new device support, a few minor features and the welcome completion of the conversion of the subsystem to use GPIO descriptors rather than numbers: - Change return type of remove() to void. - Completion of the conversion of SPI controller drivers to use GPIO descriptors rather than numbers. - Quite a few DT schema conversions. - Support for multiple SPI devices on a bus in ACPI systems. - Big overhaul of the PXA2xx SPI driver. - Support for AMD AMDI0062, Intel Raptor Lake, Mediatek MT7986 and MT8186, nVidia Tegra210 and Tegra234, Renesas RZ/V2L, Tesla FSD and Sunplus SP7021" [ And this is obviously where that spi change that snuck into the regulator tree _should_ have been :^] * tag 'spi-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (124 commits) spi: fsi: Implement a timeout for polling status spi: Fix erroneous sgs value with min_t() spi: tegra20: Use of_device_get_match_data() spi: mediatek: add ipm design support for MT7986 spi: Add compatible for MT7986 spi: sun4i: fix typos in comments spi: mediatek: support tick_delay without enhance_timing spi: Update clock-names property for arm pl022 spi: rockchip-sfc: fix platform_get_irq.cocci warning spi: s3c64xx: Add spi port configuration for Tesla FSD SoC spi: dt-bindings: samsung: Add fsd spi compatible spi: topcliff-pch: Prevent usage of potentially stale DMA device spi: tegra210-quad: combined sequence mode spi: tegra210-quad: add acpi support spi: npcm-fiu: Fix typo ("npxm") spi: Fix Tegra QSPI example spi: qup: replace spin_lock_irqsave by spin_lock in hard IRQ spi: cadence: fix platform_get_irq.cocci warning spi: Update NXP Flexspi maintainer details dt-bindings: mfd: maxim,max77802: Convert to dtschema ...
Diffstat (limited to 'Documentation/driver-api')
-rw-r--r--Documentation/driver-api/mtd/index.rst2
-rw-r--r--Documentation/driver-api/mtd/spi-intel.rst (renamed from Documentation/driver-api/mtd/intel-spi.rst)8
2 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/driver-api/mtd/index.rst b/Documentation/driver-api/mtd/index.rst
index 436ba5a851d7..6a4278f409d7 100644
--- a/Documentation/driver-api/mtd/index.rst
+++ b/Documentation/driver-api/mtd/index.rst
@@ -7,6 +7,6 @@ Memory Technology Device (MTD)
.. toctree::
:maxdepth: 1
- intel-spi
+ spi-intel
nand_ecc
spi-nor
diff --git a/Documentation/driver-api/mtd/intel-spi.rst b/Documentation/driver-api/mtd/spi-intel.rst
index 0465f6879262..df854f20ead1 100644
--- a/Documentation/driver-api/mtd/intel-spi.rst
+++ b/Documentation/driver-api/mtd/spi-intel.rst
@@ -1,5 +1,5 @@
==============================
-Upgrading BIOS using intel-spi
+Upgrading BIOS using spi-intel
==============================
Many Intel CPUs like Baytrail and Braswell include SPI serial flash host
@@ -11,12 +11,12 @@ avoid accidental (or on purpose) overwrite of the content.
Not all manufacturers protect the SPI serial flash, mainly because it
allows upgrading the BIOS image directly from an OS.
-The intel-spi driver makes it possible to read and write the SPI serial
+The spi-intel driver makes it possible to read and write the SPI serial
flash, if certain protection bits are not set and locked. If it finds
any of them set, the whole MTD device is made read-only to prevent
partial overwrites. By default the driver exposes SPI serial flash
contents as read-only but it can be changed from kernel command line,
-passing "intel-spi.writeable=1".
+passing "spi_intel.writeable=1".
Please keep in mind that overwriting the BIOS image on SPI serial flash
might render the machine unbootable and requires special equipment like
@@ -32,7 +32,7 @@ Linux.
serial flash. Distros like Debian and Fedora have this prepackaged with
name "mtd-utils".
- 3) Add "intel-spi.writeable=1" to the kernel command line and reboot
+ 3) Add "spi_intel.writeable=1" to the kernel command line and reboot
the board (you can also reload the driver passing "writeable=1" as
module parameter to modprobe).