kernel/git/stable/linux.git/drivers/spi/Makefile, branch linux-5.7.y

Merge tag 'mtk-mtd-spi-move' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.7

2020-03-11T19:58:20+00:00

spi: Rewrite mtk-quadspi spi-nor driver with spi-mem This patchset from Chuanhong Guo adds a spi-mem driver for Mediatek SPI-NOR controller, which already has limited support by mtk-quadspi. This new driver can make use of full quadspi capability of this controller.

spi: add support for mediatek spi-nor controller

2020-03-11T19:56:07+00:00

This is a driver for mtk spi-nor controller using spi-mem interface. The same controller already has limited support provided by mtk-quadspi driver under spi-nor framework and this new driver is a replacement for the old one. Comparing to the old driver, this driver has following advantages: 1. It can handle any full-duplex spi transfer up to 6 bytes, and this is implemented using generic spi interface. 2. It take account into command opcode properly. The reading routine in this controller can only use 0x03 or 0x0b as opcode on 1-1-1 transfers, but old driver doesn't implement this properly. This driver checks supported opcode explicitly and use (1) to perform unmatched operations. 3. It properly handles SFDP reading. Old driver can't read SFDP due to the bug mentioned in (2). 4. It can do 1-2-2 and 1-4-4 fast reading on spi-nor. These two ops requires parsing SFDP, which isn't possible in old driver. And the old driver is only flagged to support 1-1-2 mode. 5. It takes advantage of the DMA feature in this controller for long reads and supports IRQ on DMA requests to free cpu cycles from polling status registers on long DMA reading. It achieves up to 17.5MB/s reading speed (1-4-4 mode) which is way faster than the old one. IRQ is implemented as optional to maintain backward compatibility. Signed-off-by: Chuanhong Guo Link: https://lore.kernel.org/r/20200306085052.28258-3-gch981213@gmail.com Signed-off-by: Mark Brown

spi: Add FSI-attached SPI controller driver

2020-03-10T14:11:57+00:00

There exists a set of SPI controllers on some POWER processors that may be accessed through the FSI bus. Add a driver to traverse the FSI CFAM engine that can access and drive the SPI controllers. This driver would typically be used by a baseboard management controller (BMC). The SPI controllers operate by means of programming a sequencing engine which automatically manages the usual SPI protocol buses. The driver programs each transfer into the sequencer as various operations specifying the slave chip and shifting data in and out on the lines. Signed-off-by: Eddie James Link: https://lore.kernel.org/r/20200306194118.18581-3-eajames@linux.ibm.com Signed-off-by: Mark Brown

spi: Add generic SPI multiplexer

2020-02-12T23:56:18+00:00

Add a SPI device driver that sits in-band and provides a SPI controller which supports chip selects via a mux-control. This enables extra SPI devices to be connected with limited native chip selects. Signed-off-by: Chris Packham Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20200204032838.20739-3-chris.packham@alliedtelesis.co.nz Signed-off-by: Mark Brown

spi: add driver for ar934x spi controller

2020-02-11T11:37:30+00:00

This patch adds driver for SPI controller found in Qualcomm Atheros AR934x/QCA95xx SoCs. This controller is a superset of the already supported qca,ar7100-spi. Besides the bit-bang mode in spi-ath79.c, this new controller added a new "shift register" mode, allowing faster spi operations. Signed-off-by: Chuanhong Guo Link: https://lore.kernel.org/r/20200210034152.49063-2-gch981213@gmail.com Signed-off-by: Mark Brown

spi: Add HiSilicon v3xx SPI NOR flash controller driver

2020-01-10T14:14:34+00:00

Add the driver for the HiSilicon v3xx SPI NOR flash controller, commonly found in hi16xx chipsets. This is a different controller than that in drivers/mtd/spi-nor/hisi-sfc.c; indeed, the naming for that driver is poor, since it is really known as FMC, and can support other memory technologies. The driver module name is "hisi-sfc-v3xx", as recommended by HW designer, being an attempt to provide a distinct name - v3xx being the unique controller versioning. Only ACPI firmware is supported. DMA is not supported, and we just use polling mode for operation completion notification. The driver uses the SPI MEM OPs. Signed-off-by: John Garry Link: https://lore.kernel.org/r/1575900490-74467-3-git-send-email-john.garry@huawei.com Signed-off-by: Mark Brown

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2019-09-16T22:52:38+00:00

Pull ARM SoC driver updates from Arnd Bergmann: "This contains driver changes that are tightly connected to SoC specific code. Aside from smaller cleanups and bug fixes, here is a list of the notable changes. New device drivers: - The Turris Mox router has a new "moxtet" bus driver for its on-board pluggable extension bus. The same platform also gains a firmware driver. - The Samsung Exynos family gains a new Chipid driver exporting using the soc device sysfs interface - A similar socinfo driver for Qualcomm Snapdragon chips. - A firmware driver for the NXP i.MX DSP IPC protocol using shared memory and a mailbox Other changes: - The i.MX reset controller driver now supports the NXP i.MX8MM chip - Amlogic SoC specific drivers gain support for the S905X3 and A311D chips - A rework of the TI Davinci framebuffer driver to allow important cleanups in the platform code - A couple of device drivers for removed ARM SoC platforms are removed. Most of the removals were picked up by other maintainers, this contains whatever was left" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (123 commits) bus: uniphier-system-bus: use devm_platform_ioremap_resource() soc: ti: ti_sci_pm_domains: Add support for exclusive and shared access dt-bindings: ti_sci_pm_domains: Add support for exclusive and shared access firmware: ti_sci: Allow for device shared and exclusive requests bus: imx-weim: remove incorrect __init annotations fbdev: remove w90x900/nuc900 platform drivers spi: remove w90x900 driver net: remove w90p910-ether driver net: remove ks8695 driver firmware: turris-mox-rwtm: Add sysfs documentation firmware: Add Turris Mox rWTM firmware driver dt-bindings: firmware: Document cznic,turris-mox-rwtm binding bus: moxtet: fix unsigned comparison to less than zero bus: moxtet: remove set but not used variable 'dummy' ARM: scoop: Use the right include dt-bindings: power: add Amlogic Everything-Else power domains bindings soc: amlogic: Add support for Everything-Else power domains controller fbdev: da8xx: use resource management for dma fbdev: da8xx-fb: drop a redundant if fbdev: da8xx-fb: use devm_platform_ioremap_resource() ...

spi: remove w90x900 driver

2019-09-04T15:57:59+00:00

The ARM w90x900 platform is getting removed, so this driver is obsolete. Link: https://lore.kernel.org/r/20190809202749.742267-8-arnd@arndb.de Signed-off-by: Arnd Bergmann Acked-by: Mark Brown Signed-off-by: Arnd Bergmann

spi: npcm-fiu: add NPCM FIU controller driver

2019-08-30T11:42:07+00:00

Add Nuvoton NPCM BMC Flash Interface Unit(FIU) SPI master controller driver using SPI-MEM interface. The FIU supports single, dual or quad communication interface. the FIU controller can operate in following modes: - User Mode Access(UMA): provides flash access by using an indirect address/data mechanism. - direct rd/wr mode: maps the flash memory into the core address space. - SPI-X mode: used for an expansion bus to an ASIC or CPLD. Signed-off-by: Tomer Maimon Link: https://lore.kernel.org/r/20190828142513.228556-3-tmaimon77@gmail.com Signed-off-by: Mark Brown

spi: Add spi driver for Socionext SynQuacer platform

2019-06-04T14:50:33+00:00

This patch adds support for controller found on synquacer platforms. Signed-off-by: Masahisa Kojima Signed-off-by: Jassi Brar Reviewed-by: Ard Biesheuvel Signed-off-by: Mark Brown