spi: sophgo: add SG2044 SPI NOR controller driver

Add support for SG2044 SPI NOR controller in Sophgo SoC.

Signed-off-by: Longbin Li <[email protected]>
Link: https://patch.msgid.link/2025030408

spi: sophgo: add SG2044 SPI NOR controller driver

Add support for SG2044 SPI NOR controller in Sophgo SoC.

Signed-off-by: Longbin Li <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: spi-qpic: add driver for QCOM SPI NAND flash Interface

This driver implements support for the SPI-NAND mode of QCOM NAND Flash
Interface as a SPI-MEM controller with pipelined ECC capability.

spi: spi-qpic: add driver for QCOM SPI NAND flash Interface

This driver implements support for the SPI-NAND mode of QCOM NAND Flash
Interface as a SPI-MEM controller with pipelined ECC capability.

Co-developed-by: Sricharan Ramabadhran <[email protected]>
Signed-off-by: Sricharan Ramabadhran <[email protected]>
Co-developed-by: Varadarajan Narayanan <[email protected]>
Signed-off-by: Varadarajan Narayanan <[email protected]>
Signed-off-by: Md Sadre Alam <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: stm32: Add OSPI driver

Add STM32 OSPI driver, it supports :
- support sNOR / sNAND devices.
- Three functional modes: indirect, automatic-status polling,
memory-mapped.
- Single-, dua

spi: stm32: Add OSPI driver

Add STM32 OSPI driver, it supports :
- support sNOR / sNAND devices.
- Three functional modes: indirect, automatic-status polling,
memory-mapped.
- Single-, dual-, quad-, and octal-SPI communication.
- Dual-quad communication.
- Single data rate (SDR).
- DMA channel for indirect mode.

Signed-off-by: Patrice Chotard <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: offload-trigger: add PWM trigger driver

Add a new driver for a generic PWM trigger for SPI offloads.

Reviewed-by: Jonathan Cameron <[email protected]>
Reviewed-by: Nuno Sa <nuno.sa@a

spi: offload-trigger: add PWM trigger driver

Add a new driver for a generic PWM trigger for SPI offloads.

Reviewed-by: Jonathan Cameron <[email protected]>
Reviewed-by: Nuno Sa <[email protected]>
Signed-off-by: David Lechner <[email protected]>
Link: https://patch.msgid.link/20250207-dlech-mainline-spi-engine-offload-2-v8-4-e48a489be48c@baylibre.com
Signed-off-by: Mark Brown <[email protected]>

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spi: add basic support for SPI offloading

Add the basic infrastructure to support SPI offload providers and
consumers.

SPI offloading is a feature that allows the SPI controller to perform
transfer

spi: add basic support for SPI offloading

Add the basic infrastructure to support SPI offload providers and
consumers.

SPI offloading is a feature that allows the SPI controller to perform
transfers without any CPU intervention. This is useful, e.g. for
high-speed data acquisition.

SPI controllers with offload support need to implement the get_offload
and put_offload callbacks and can use the devm_spi_offload_alloc() to
allocate offload instances.

SPI peripheral drivers will call devm_spi_offload_get() to get a
reference to the matching offload instance. This offload instance can
then be attached to a SPI message to request offloading that message.

It is expected that SPI controllers with offload support will check for
the offload instance in the SPI message in the ctlr->optimize_message()
callback and handle it accordingly.

CONFIG_SPI_OFFLOAD is intended to be a select-only option. Both
consumer and provider drivers should `select SPI_OFFLOAD` in their
Kconfig to ensure that the SPI core is built with offload support.

Reviewed-by: Jonathan Cameron <[email protected]>
Reviewed-by: Nuno Sa <[email protected]>
Signed-off-by: David Lechner <[email protected]>
Link: https://patch.msgid.link/20250207-dlech-mainline-spi-engine-offload-2-v8-1-e48a489be48c@baylibre.com
Signed-off-by: Mark Brown <[email protected]>

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spi: spi-kspi2: Add KEBA SPI controller support

The KEBA SPI controller is found in the system FPGA of KEBA PLC devices.
It is used to connect the SPI flash chip of the FPGA and some SPI
devices.

I

spi: spi-kspi2: Add KEBA SPI controller support

The KEBA SPI controller is found in the system FPGA of KEBA PLC devices.
It is used to connect the SPI flash chip of the FPGA and some SPI
devices.

It is a simple SPI controller with configurable speed. The hardware
supports only single byte transfers. There are no FIFOs or interrupts.

Signed-off-by: Gerhard Engleder <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: apple: Add driver for Apple SPI controller

This SPI controller is present in Apple SoCs such as the M1 (t8103) and
M1 Pro/Max (t600x). It is a relatively straightforward design with two
16-entr

spi: apple: Add driver for Apple SPI controller

This SPI controller is present in Apple SoCs such as the M1 (t8103) and
M1 Pro/Max (t600x). It is a relatively straightforward design with two
16-entry FIFOs, arbitrary transfer sizes (up to 2**32 - 1) and fully
configurable word size up to 32 bits. It supports one hardware CS line
which can also be driven via the pinctrl/GPIO driver instead, if
desired. TX and RX can be independently enabled.

There are a surprising number of knobs for tweaking details of the
transfer, most of which we do not use right now. Hardware CS control
is available, but we haven't found a way to make it stay low across
multiple logical transfers, so we just use software CS control for now.

There is also a shared DMA offload coprocessor that can be used to handle
larger transfers without requiring an IRQ every 8-16 words, but that
feature depends on a bunch of scaffolding that isn't ready to be
upstreamed yet, so leave it for later.

The hardware shares some register bit definitions with spi-s3c24xx which
suggests it has a shared legacy with Samsung SoCs, but it is too
different to warrant sharing a driver.

Signed-off-by: Hector Martin <[email protected]>
Signed-off-by: Janne Grunau <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: spi-mem: Add Realtek SPI-NAND controller

Add a driver for the SPI-NAND controller on the RTL9300 family of
devices.

The controller supports
* Serial/Dual/Quad data with
* PIO and DMA data read

spi: spi-mem: Add Realtek SPI-NAND controller

Add a driver for the SPI-NAND controller on the RTL9300 family of
devices.

The controller supports
* Serial/Dual/Quad data with
* PIO and DMA data read/write operation
* Configurable flash access timing

There is a separate ECC controller on the RTL9300 which isn't currently
supported (instead we rely on the on-die ECC supported by most SPI-NAND
chips).

Signed-off-by: Chris Packham <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: add ch341a usb2spi driver

Add a driver for the QiHeng Electronics ch341a USB-to-SPI adapter.

This driver is loosely based on the ch341a module from the flashrom project.

Signed-off-by: Johann

spi: add ch341a usb2spi driver

Add a driver for the QiHeng Electronics ch341a USB-to-SPI adapter.

This driver is loosely based on the ch341a module from the flashrom project.

Signed-off-by: Johannes Thumshirn <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: pxa2xx: Move platform driver to a separate file

The spi-pxa2xx.c is bloated with a platform driver code while
pretending to provide a core functionality. Make it real core
library by splitting

spi: pxa2xx: Move platform driver to a separate file

The spi-pxa2xx.c is bloated with a platform driver code while
pretending to provide a core functionality. Make it real core
library by splitting out the platform driver to a separate file.

Signed-off-by: Andy Shevchenko <[email protected]>
Link: https://msgid.link/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: airoha: add SPI-NAND Flash controller driver

Introduce support for SPI-NAND driver of the Airoha NAND Flash Interface
found on Airoha ARM SoCs.

Tested-by: Rajeev Kumar <[email protected]

spi: airoha: add SPI-NAND Flash controller driver

Introduce support for SPI-NAND driver of the Airoha NAND Flash Interface
found on Airoha ARM SoCs.

Tested-by: Rajeev Kumar <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Link: https://lore.kernel.org/r/6c9db20505b01a66807995374f2af475a23ce5b2.1714377864.git.lorenzo@kernel.org
Signed-off-by: Mark Brown <[email protected]>

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spi: Add support for Intel LJCA USB SPI driver

Implements the SPI function of Intel USB-I2C/GPIO/SPI adapter device
named "La Jolla Cove Adapter" (LJCA). It communicate with LJCA SPI
module with spe

spi: Add support for Intel LJCA USB SPI driver

Implements the SPI function of Intel USB-I2C/GPIO/SPI adapter device
named "La Jolla Cove Adapter" (LJCA). It communicate with LJCA SPI
module with specific protocol through interfaces exported by LJCA USB
driver.

Signed-off-by: Wentong Wu <[email protected]>
Reviewed-by: Sakari Ailus <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Tested-by: Hans de Goede <[email protected]>
Reviewed-by: Mark Brown <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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spi: cs42l43: Add SPI controller support

The CS42L43 is an audio CODEC with integrated MIPI SoundWire interface
(Version 1.2.1 compliant), I2C, SPI, and I2S/TDM interfaces designed
for portable appl

spi: cs42l43: Add SPI controller support

The CS42L43 is an audio CODEC with integrated MIPI SoundWire interface
(Version 1.2.1 compliant), I2C, SPI, and I2S/TDM interfaces designed
for portable applications. It provides a high dynamic range, stereo
DAC for headphone output, two integrated Class D amplifiers for
loudspeakers, and two ADCs for wired headset microphone input or
stereo line input. PDM inputs are provided for digital microphones.

The SPI component incorporates a SPI controller interface for
communication with other peripheral components.

Signed-off-by: Lucas Tanure <[email protected]>
Signed-off-by: Maciej Strozek <[email protected]>
Signed-off-by: Charles Keepax <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: loongson: add bus driver for the loongson spi controller

This bus driver supports the Loongson SPI hardware controller in the
Loongson platforms and supports the use DTS and PCI framework to
re

spi: loongson: add bus driver for the loongson spi controller

This bus driver supports the Loongson SPI hardware controller in the
Loongson platforms and supports the use DTS and PCI framework to
register SPI device resources.

Signed-off-by: Yinbo Zhu <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Mark Brown <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: Add support for Renesas CSI

The RZ/V2M SoC comes with the Clocked Serial Interface (CSI)
IP, which is a master/slave SPI controller.

This commit adds a driver to support CSI master mode.

Sign

spi: Add support for Renesas CSI

The RZ/V2M SoC comes with the Clocked Serial Interface (CSI)
IP, which is a master/slave SPI controller.

This commit adds a driver to support CSI master mode.

Signed-off-by: Fabrizio Castro <[email protected]>
Link: https://lore.kernel.org/r/Message-Id: <[email protected]>
Signed-off-by: Mark Brown <[email protected]>

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spi: add support for Amlogic A1 SPI Flash Controller

This is a driver for the Amlogic SPI flash controller support
on A113L SoC.

Signed-off-by: Martin Kurbanov <[email protected]>
Reviewed-

spi: add support for Amlogic A1 SPI Flash Controller

This is a driver for the Amlogic SPI flash controller support
on A113L SoC.

Signed-off-by: Martin Kurbanov <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: bcmbca-hsspi: Add driver for newer HSSPI controller

The newer BCMBCA SoCs such as BCM6756, BCM4912 and BCM6855 include an
updated SPI controller that add the capability to allow the driver to
c

spi: bcmbca-hsspi: Add driver for newer HSSPI controller

The newer BCMBCA SoCs such as BCM6756, BCM4912 and BCM6855 include an
updated SPI controller that add the capability to allow the driver to
control chip select explicitly. Driver can control and keep cs low
between the transfers natively. Hence the dummy cs workaround or prepend
mode found in the bcm63xx-hsspi driver are no longer needed and this new
driver is much cleaner.

Signed-off-by: William Zhang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: remove s3c24xx driver

The s3c24xx platform was removed,s o there are no remaining users
for its spi driver.

Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Arn

spi: remove s3c24xx driver

The s3c24xx platform was removed,s o there are no remaining users
for its spi driver.

Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>

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spi: remove omap 100K driver

The OMAP7xx/OMAP8xx support was removed since all of its boards
have no remaining users. Remove its spi driver as well.

Cc: Aaro Koskinen <[email protected]>
Cc: Jan

spi: remove omap 100K driver

The OMAP7xx/OMAP8xx support was removed since all of its boards
have no remaining users. Remove its spi driver as well.

Cc: Aaro Koskinen <[email protected]>
Cc: Janusz Krzysztofik <[email protected]>
Cc: [email protected]
Cc: Cory Maccarrone <[email protected]>
Cc: Fabrice Crohas <[email protected]>
Acked-by: Mark Brown <[email protected]>
Acked-by: Tony Lindgren <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>

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spi: wpcm-fiu: Add driver for Nuvoton WPCM450 Flash Interface Unit (FIU)

The Flash Interface Unit (FIU) is the SPI flash controller in the
Nuvoton WPCM450 BMC SoC. It supports four chip selects, and

spi: wpcm-fiu: Add driver for Nuvoton WPCM450 Flash Interface Unit (FIU)

The Flash Interface Unit (FIU) is the SPI flash controller in the
Nuvoton WPCM450 BMC SoC. It supports four chip selects, and direct
(memory-mapped) access to 16 MiB per chip. Larger flash chips can be
accessed by software-defined SPI transfers.

The FIU in newer NPCM7xx SoCs is not compatible with the WPCM450 FIU.

Signed-off-by: Jonathan Neuschäfer <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: Add Socionext F_OSPI SPI flash controller driver

Introduce Socionext F_OSPI controller driver. This controller is used to
communicate with slave devices such as SPI Flash memories. It supports

spi: Add Socionext F_OSPI SPI flash controller driver

Introduce Socionext F_OSPI controller driver. This controller is used to
communicate with slave devices such as SPI Flash memories. It supports
4 slave devices and up to 8-bit wide bus, but supports master mode only.

This driver uses spi-mem framework for SPI flash memory access, and
can only operate indirect access mode and single data rate mode.

Signed-off-by: Kunihiko Hayashi <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: microchip: pci1xxxx: Add driver for SPI controller of PCI1XXXX PCIe switch

Microchip pci1xxxx is a PCIe switch with a multi-function endpoint on one of its
downstream ports. SPI is one of the f

spi: microchip: pci1xxxx: Add driver for SPI controller of PCI1XXXX PCIe switch

Microchip pci1xxxx is a PCIe switch with a multi-function endpoint on one of its
downstream ports. SPI is one of the functions in the multi-function endpoint. This
function has 2 SPI masters, operates at a maximum frequency of 30 MHz and supports
7 client devices per master. This patch adds complete functionality to the SPI
function except for suspend and resume.

Signed-off-by: Tharun Kumar P <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: microchip-core-qspi: Add support for microchip fpga qspi controllers

Add a driver for Microchip FPGA QSPI controllers. This driver also
supports "hard" QSPI controllers on Polarfire SoC.

Signe

spi: microchip-core-qspi: Add support for microchip fpga qspi controllers

Add a driver for Microchip FPGA QSPI controllers. This driver also
supports "hard" QSPI controllers on Polarfire SoC.

Signed-off-by: Naga Sureshkumar Relli <[email protected]>
Reviewed-by: Conor Dooley <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: spi-gxp: Add support for HPE GXP SoCs

The GXP supports 3 separate SPI interfaces to accommodate the system
flash, core flash, and other functions. The SPI engine supports variable
clock frequen

spi: spi-gxp: Add support for HPE GXP SoCs

The GXP supports 3 separate SPI interfaces to accommodate the system
flash, core flash, and other functions. The SPI engine supports variable
clock frequency, selectable 3-byte or 4-byte addressing and a
configurable x1, x2, and x4 command/address/data modes. The memory
buffer for reading and writing ranges between 256 bytes and 8KB. This
driver supports access to the core flash and bios part.

Signed-off-by: Nick Hawkins <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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spi: add support for microchip fpga spi controllers

Add a driver for Microchip FPGA SPI controllers, specifically
supporting the "hard" controllers on PolarFire SoC.

Co-developed-by: Daire McNamara

spi: add support for microchip fpga spi controllers

Add a driver for Microchip FPGA SPI controllers, specifically
supporting the "hard" controllers on PolarFire SoC.

Co-developed-by: Daire McNamara <[email protected]>
Signed-off-by: Daire McNamara <[email protected]>
Signed-off-by: Conor Dooley <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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