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2020-05-29spi: dw: Add DW SPI DMA/PCI/MMIO dependency on the DW SPI coreSerge Semin1-3/+6
Seeing all of the DW SPI driver components like DW SPI DMA/PCI/MMIO depend on the DW SPI core code it's better to use the if-endif conditional kernel config statement to signify that common dependency. Co-developed-by: Georgy Vlasov <Georgy.Vlasov@baikalelectronics.ru> Co-developed-by: Ramil Zaripov <Ramil.Zaripov@baikalelectronics.ru> Signed-off-by: Georgy Vlasov <Georgy.Vlasov@baikalelectronics.ru> Signed-off-by: Ramil Zaripov <Ramil.Zaripov@baikalelectronics.ru> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Feng Tang <feng.tang@intel.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: linux-mips@vger.kernel.org Cc: devicetree@vger.kernel.org Link: https://lore.kernel.org/r/20200529131205.31838-13-Sergey.Semin@baikalelectronics.ru Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-29spi: dw: Remove DW DMA code dependency from DW_DMAC_PCISerge Semin1-1/+1
Since there is a generic method available to initialize the DW SPI DMA interface on any DT and ACPI-based platforms, which in general can be designed with not only DW DMAC but with any DMA engine on board, we can freely remove the CONFIG_DW_DMAC_PCI config from dependency list of CONFIG_SPI_DW_DMA. Especially seeing that we don't use anything DW DMAC specific in the new driver. Co-developed-by: Georgy Vlasov <Georgy.Vlasov@baikalelectronics.ru> Co-developed-by: Ramil Zaripov <Ramil.Zaripov@baikalelectronics.ru> Signed-off-by: Georgy Vlasov <Georgy.Vlasov@baikalelectronics.ru> Signed-off-by: Ramil Zaripov <Ramil.Zaripov@baikalelectronics.ru> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Feng Tang <feng.tang@intel.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: linux-mips@vger.kernel.org Cc: devicetree@vger.kernel.org Link: https://lore.kernel.org/r/20200529131205.31838-12-Sergey.Semin@baikalelectronics.ru Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-29spi: dw: Move Non-DMA code to the DW PCIe-SPI driverSerge Semin1-4/+4
This is a preparation patch before adding the DW DMA support into the DW SPI MMIO driver. We need to unpin the Non-DMA-specific code from the intended to be generic DW APB SSI DMA code. This isn't that hard, since the most part of the spi-dw-mid.c driver in fact implements a generic DMA interface for the DW SPI controller driver. The only Intel MID specifics concern getting the max frequency from the MRST Clock Control Unit and fetching the DMA controller channels from corresponding PCIe DMA controller. Since first one is related with the SPI interface configuration we moved it' implementation into the DW PCIe-SPI driver module. After that former spi-dw-mid.c file can be just renamed to be the DW SPI DMA module optionally compiled in to the DW APB SSI core driver. Co-developed-by: Georgy Vlasov <Georgy.Vlasov@baikalelectronics.ru> Co-developed-by: Ramil Zaripov <Ramil.Zaripov@baikalelectronics.ru> Signed-off-by: Georgy Vlasov <Georgy.Vlasov@baikalelectronics.ru> Signed-off-by: Ramil Zaripov <Ramil.Zaripov@baikalelectronics.ru> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Feng Tang <feng.tang@intel.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: linux-mips@vger.kernel.org Cc: devicetree@vger.kernel.org Link: https://lore.kernel.org/r/20200529131205.31838-11-Sergey.Semin@baikalelectronics.ru Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-11spi: uniphier: Depend on HAS_IOMEMKunihiko Hayashi1-0/+1
The driver uses devm_ioremap_resource() which is only available when CONFIG_HAS_IOMEM is set, so the driver depends on this option. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Link: https://lore.kernel.org/r/1589185530-28170-1-git-send-email-hayashi.kunihiko@socionext.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-27spi: spi-amd: Add AMD SPI controller driver supportSanjay R Mehta1-0/+6
This driver supports SPI Controller for AMD SOCs.This driver supports SPI operations using FIFO mode of transfer. Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/1587844788-33997-1-git-send-email-sanju.mehta@amd.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-03Merge tag 'sound-5.7-rc1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "This became again a busy development cycle. There are few ALSA core updates (merely API cleanups and sparse fixes), with the majority of other changes are found in ASoC scene. Here are some highlights: ALSA core: - More helper macros for sparse warning fixes (e.g. bitwise types) - Slight optimization of PCM OSS locks - Make common handling for PCM / compress buffers (for SOF) ASoC: - Lots of code refactoring and modernization for (still ongoing) componentization works - Conversion of SND_SOC_ALL_CODECS to use imply - Continued refactoring and fixing of the Intel SOF/SST support, including the initial (but still incomplete) SoundWire support - SoundWire and more advanced clocking support for Realtek RT5682 - Support for amlogic GX, Meson 8, Meson 8B and T9015 DAC, Broadcom DSL/PON, Ingenic JZ4760 and JZ4770, Realtek RL6231, and TI TAS2563 and TLV320ADCX140 HD-audio: - Optimizations in HDMI jack handling - A few new quirks and fixups for Realtek codecs USB-audio: - Delayed registration support - New quirks for Motu, Kingston, Presonus" * tag 'sound-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (415 commits) ALSA: usb-audio: Fix case when USB MIDI interface has more than one extra endpoint descriptor Revert "ALSA: uapi: Drop asound.h inclusion from asoc.h" ALSA: hda/realtek - Remove now-unnecessary XPS 13 headphone noise fixups ALSA: hda/realtek - Set principled PC Beep configuration for ALC256 ALSA: doc: Document PC Beep Hidden Register on Realtek ALC256 ALSA: hda/realtek - a fake key event is triggered by running shutup ALSA: hda: default enable CA0132 DSP support ASoC: amd: acp3x-pcm-dma: clean up two indentation issues ASoC: tlv320adcx140: Remove undocumented property ASoC: Intel: sof_sdw: Add Volteer support with RT5682 SNDW helper function ASoC: Intel: common: add match table for TGL RT5682 SoundWire driver ASoC: Intel: boards: add sof_sdw machine driver ASoC: Intel: soc-acpi: update topology and driver name for SoundWire platforms ASoC: rt5682: move DAI clock registry to I2S mode ASoC: pxa: magician: convert to use i2c_new_client_device() ASoC: SOF: Intel: hda-ctrl: add reset cycle before parsing capabilities Asoc: SOF: Intel: hda: check SoundWire wakeen interrupt in irq thread ASoC: SOF: Intel: hda: add WAKEEN interrupt support for SoundWire ASoC: SOF: Intel: hda: add parameter to control SoundWire clock stop quirks ASoC: SOF: Intel: hda: merge IPC, stream and SoundWire interrupt handlers ...
2020-03-12spi: meson-spicc: add a linear clock divider supportSunny Luo1-0/+1
The SPICC controller in Meson-AXG SoC is capable of using a linear clock divider to reach a much fine tuned range of clocks, while the old controller only use a power of two clock divider, result at a more coarse clock range. Also convert the clock registration into Common Clock Framework. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Yixun Lan <yixun.lan@amlogic.com> Signed-off-by: Sunny Luo <sunny.luo@amlogic.com> Link: https://lore.kernel.org/r/20200312133131.26430-4-narmstrong@baylibre.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-03-11Merge tag 'mtk-mtd-spi-move' of ↵Mark Brown1-0/+10
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.7 spi: Rewrite mtk-quadspi spi-nor driver with spi-mem This patchset from Chuanhong Guo <gch981213@gmail.com> 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.
2020-03-11spi: add support for mediatek spi-nor controllerChuanhong Guo1-0/+10
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 <gch981213@gmail.com> Link: https://lore.kernel.org/r/20200306085052.28258-3-gch981213@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-03-11spi: Stop selecting MTD_SPI_NOR for SPI_HISI_SFC_V3XXJohn Garry1-1/+0
By selecting MTD_SPI_NOR for SPI_HISI_SFC_V3XX, we may introduce unmet dependencies: WARNING: unmet direct dependencies detected for MTD_SPI_NOR Depends on [m]: MTD [=m] && SPI_MASTER [=y] Selected by [y]: - SPI_HISI_SFC_V3XX [=y] && SPI [=y] && SPI_MASTER [=y] && (ARM64 && ACPI [=y] || COMPILE_TEST [=y]) && HAS_IOMEM [=y] Since MTD_SPI_NOR is only selected by SPI_HISI_SFC_V3XX for practical reasons - slave devices use the spi-nor driver, enabled by MTD_SPI_NOR - just drop it. Signed-off-by: John Garry <john.garry@huawei.com> Link: https://lore.kernel.org/r/1583948115-239907-1-git-send-email-john.garry@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-03-10spi: Add FSI-attached SPI controller driverEddie James1-0/+7
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 <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20200306194118.18581-3-eajames@linux.ibm.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-03-06spi: Remove CONFIG_ prefix from Kconfig selectJoe Perches1-1/+1
commit a2ca53b52e00 ("spi: Add HiSilicon v3xx SPI NOR flash controller driver") likely inadvertently used a select statement with a CONFIG_ prefix, remove the prefix. Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Joe Perches <joe@perches.com> Acked-by: John Garry <john.garry@huawei.com> Link: https://lore.kernel.org/r/f8ac6b32a29b9a05b58a7e58ffe8b780642abbf1.camel@perches.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-02-13spi: Add generic SPI multiplexerChris Packham1-0/+11
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 <chris.packham@alliedtelesis.co.nz> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20200204032838.20739-3-chris.packham@alliedtelesis.co.nz Signed-off-by: Mark Brown <broonie@kernel.org>
2020-02-11spi: add driver for ar934x spi controllerChuanhong Guo1-0/+7
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 <gch981213@gmail.com> Link: https://lore.kernel.org/r/20200210034152.49063-2-gch981213@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-02-11spi: pxa2xx: Enable support for compile-testingGeert Uytterhoeven1-1/+1
m68k/allmodconfig: WARNING: unmet direct dependencies detected for SPI_PXA2XX Depends on [n]: SPI [=y] && SPI_MASTER [=y] && (ARCH_PXA || ARCH_MMP || PCI [=n] || ACPI) Selected by [m]: - SND_SOC_INTEL_BDW_RT5677_MACH [=m] && SOUND [=m] && !UML && SND [=m] && SND_SOC [=m] && SND_SOC_INTEL_MACH [=y] && (SND_SOC_INTEL_HASWELL [=n] || SND_SOC_SOF_BROADWELL [=m]) && I2C [=m] && (I2C_DESIGNWARE_PLATFORM [=m] || COMPILE_TEST [=y]) && (GPIOLIB [=y] || COMPILE_TEST [=y]) && (X86_INTEL_LPSS || COMPILE_TEST [=y]) && SPI_MASTER [=y] This happens because SND_SOC_INTEL_BDW_RT5677_MACH selects SPI_PXA2XX, and the former depends on COMPILE_TEST, while the latter does not. Fix this by enabling compile-testing for SPI_PXA2XX. Fixes: 630db1549356f644 ("ASoC: Intel: bdw-rt5677: fix Kconfig dependencies") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20200210093027.6672-1-geert@linux-m68k.org Signed-off-by: Mark Brown <broonie@kernel.org>
2020-01-10spi: Add HiSilicon v3xx SPI NOR flash controller driverJohn Garry1-0/+9
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 <john.garry@huawei.com> Link: https://lore.kernel.org/r/1575900490-74467-3-git-send-email-john.garry@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-20spi: Fix Kconfig indentationKrzysztof Kozlowski1-9/+9
Adjust indentation from spaces to tab (+optional two spaces) as in coding style with command like: $ sed -e 's/^ /\t/' -i */Kconfig Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20191120133916.13595-1-krzk@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-18spi: atmel: Remove platform data supportGregory CLEMENT1-0/+1
This driver is now only used through the device tree. Simplify code by explicitly depend on device tree. Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Link: https://lore.kernel.org/r/20191017141846.7523-6-gregory.clement@bootlin.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-09-18Merge tag 'docs-5.4' of git://git.lwn.net/linuxLinus Torvalds1-1/+1
Pull documentation updates from Jonathan Corbet: "It's a somewhat calmer cycle for docs this time, as the churn of the mass RST conversion is happily mostly behind us. - A new document on reproducible builds. - We finally got around to zapping the documentation for hardware support that was removed in 2004; one doesn't want to rush these things. - The usual assortment of fixes, typo corrections, etc" * tag 'docs-5.4' of git://git.lwn.net/linux: (67 commits) Documentation: kbuild: Add document about reproducible builds docs: printk-formats: Stop encouraging use of unnecessary %h[xudi] and %hh[xudi] Documentation: Add "earlycon=sbi" to the admin guide doc:lock: remove reference to clever use of read-write lock devices.txt: improve entry for comedi (char major 98) docs: mtd: Update spi nor reference driver doc: arm64: fix grammar dtb placed in no attributes region Documentation: sysrq: don't recommend 'S' 'U' before 'B' mailmap: Update email address for Quentin Perret docs: ftrace: clarify when tracing is disabled by the trace file docs: process: fix broken link Documentation/arm/samsung-s3c24xx: Remove stray U+FEFF character to fix title Documentation/arm/sa1100/assabet: Fix 'make assabet_defconfig' command Documentation/arm/sa1100: Remove some obsolete documentation docs/zh_CN: update Chinese howto.rst for latexdocs making Documentation: virt: Fix broken reference to virt tree's index docs: Fix typo on pull requests guide kernel-doc: Allow anonymous enum Documentation: sphinx: Don't parse socket() as identifier reference Documentation: sphinx: Add missing comma to list of strings ...
2019-09-17Merge tag 'armsoc-drivers' of ↵Linus Torvalds1-7/+0
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc 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() ...
2019-09-04spi: remove w90x900 driverArnd Bergmann1-7/+0
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 <arnd@arndb.de> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-30spi: npcm-fiu: add NPCM FIU controller driverTomer Maimon1-0/+10
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 <tmaimon77@gmail.com> Link: https://lore.kernel.org/r/20190828142513.228556-3-tmaimon77@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-07-31spi: docs: convert to ReST and add it to the kABI booksetMauro Carvalho Chehab1-1/+1
While there's one file there with briefily describes the uAPI, the documentation was written just like most subsystems: focused on kernel developers. So, add it together with driver-api books. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-10Merge tag 'v5.2-rc4' into spi-5.3Mark Brown1-0/+1
Linux 5.2-rc4
2019-06-04spi: Add spi driver for Socionext SynQuacer platformMasahisa Kojima1-0/+10
This patch adds support for controller found on synquacer platforms. Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner1-0/+1
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-13spi: Allow selecting BCM2835 SPI controllers on ARCH_BRCMSTBFlorian Fainelli1-2/+2
ARCH_BRCMSTB platforms have the BCM2835 SPI controllers (normal and auxiliary), allow selecting the two drivers on such platforms. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-05spi: spi-mem: Add support for Zynq QSPI controllerNaga Sureshkumar Relli1-1/+9
Add support for QSPI controller driver used by Xilinx Zynq SOC. Signed-off-by: Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-25spi: mt7621: Move SPI driver out of stagingStefan Roese1-0/+6
This patch moves the MT7621 SPI driver, which is used on some Ralink / MediaTek MT76xx MIPS SoC's, out of the staging directory. No changes to the source code are done in this patch. This driver version was tested successfully on an MT7688 based platform with an SPI NOR on CS0 and an SPI NAND on CS1 without any issues (so far). This patch also documents the devicetree bindings for the MT7621 SPI device driver. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Rob Herring <robh@kernel.org> Cc: Mark Brown <broonie@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: NeilBrown <neil@brown.name> Cc: Sankalp Negi <sankalpnegi2310@gmail.com> Cc: Chuanhong Guo <gch981213@gmail.com> Cc: John Crispin <john@phrozen.org> Cc: Armando Miraglia <arma2ff0@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-19spi: sifive: Add driver for the SiFive SPI controllerYash Shah1-0/+6
Add driver for the SiFive SPI controller on the HiFive Unleashed board. Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Emil Renner Berthing <kernel@esmil.dk> Signed-off-by: Yash Shah <yash.shah@sifive.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-01-28spi: Kconfig: imx: Update the help text to make it more genericFabio Estevam1-2/+1
The spi-imx driver supports both master and slave modes, so update the help text to make it more generic. Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-01-28spi: spi-mem: Add driver for NXP FlexSPI controllerYogesh Narayan Gaur1-0/+10
- Add driver for NXP FlexSPI host controller (0) What is the FlexSPI controller? FlexSPI is a flexsible SPI host controller which supports two SPI channels and up to 4 external devices. Each channel supports Single/Dual/Quad/Octal mode data transfer (1/2/4/8 bidirectional data lines) i.e. FlexSPI acts as an interface to external devices, maximum 4, each with up to 8 bidirectional data lines. It uses new SPI memory interface of the SPI framework to issue flash memory operations to up to four connected flash devices (2 buses with 2 CS each). (1) Tested this driver with the mtd_debug and JFFS2 filesystem utility on NXP LX2160ARDB and LX2160AQDS targets. LX2160ARDB is having two NOR slave device connected on single bus A i.e. A0 and A1 (CS0 and CS1). LX2160AQDS is having two NOR slave device connected on separate buses one flash on A0 and second on B1 i.e. (CS0 and CS3). Verified this driver on following SPI NOR flashes: Micron, mt35xu512ab, [Read - 1 bit mode] Cypress, s25fl512s, [Read - 1/2/4 bit mode] Signed-off-by: Yogesh Narayan Gaur <yogeshnarayan.gaur@nxp.com> Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de> Reviewed-by: Boris Brezillon <bbrezillon@kernel.org> Tested-by: Ashish Kumar <Ashish.Kumar@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-01-17spi: ath79: Enable support for compile testAlban Bedel1-1/+1
To allow building this driver in compile test we need to remove all dependency on headers from arch/mips/include. To allow this we explicitly define all the registers locally instead of using ar71xx_regs.h and we move the platform data struct definition to include/linux/platform_data/spi-ath79.h. Signed-off-by: Alban Bedel <albeu@free.fr> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-01-17spi: ath79: Simplify ath79_spi_chipselect()Alban Bedel1-1/+1
First of all this callback was slightly misused to setup the clock polarity at the beginning of a transfer. Beside being at the wrong place, it is also useless as only SPI mode 1 is supported. Instead just make sure the base value used for IOC is suitable to start a transfer by clearing the clock and data bits during the controller setup. This also remove the last direct usage of the GPIO API, so we can remove the direct dependency on GPIOLIB. Signed-off-by: Alban Bedel <albeu@free.fr> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-01-07spi: fix typo in SPI_STM32 help textCezary Gapinski1-1/+1
Fix typo from STMicroelectonics to STMicroelectronics. Signed-off-by: Cezary Gapinski <cezary.gapinski@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-01-07spi: add cpu details to fsl-dspi Kconfig helpAngelo Dureghello1-1/+1
Add some cpu families that are actually using the fsl-dspi module in the related Kconfig description. Signed-off-by: Angelo Dureghello <angelo@sysam.it> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-01-07spi: Add a driver for the Freescale/NXP QuadSPI controllerFrieder Schrempf1-0/+11
This driver is derived from the SPI NOR driver at mtd/spi-nor/fsl-quadspi.c. It uses the new SPI memory interface of the SPI framework to issue flash memory operations to up to four connected flash chips (2 buses with 2 CS each). The controller does not support generic SPI messages. This patch also disables the build of the "old" driver and reuses its Kconfig option CONFIG_SPI_FSL_QUADSPI to replace it. Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de> Acked-by: Han Xu <han.xu@nxp.com> Reviewed-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com> Tested-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com> Tested-by: Han Xu <han.xu@nxp.com> Reviewed-by: Boris Brezillon <bbrezillon@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-20Merge remote-tracking branches 'spi/topic/mem' and 'spi/topic/mtd' into spi-nextMark Brown1-0/+9
2018-12-11mtd: atmel-quadspi: disallow building on ebsa110Arnd Bergmann1-1/+1
I ran into a link-time error with the atmel-quadspi driver on the EBSA110 platform: drivers/mtd/built-in.o: In function `atmel_qspi_run_command': :(.text+0x1ee3c): undefined reference to `_memcpy_toio' :(.text+0x1ee48): undefined reference to `_memcpy_fromio' The problem is that _memcpy_toio/_memcpy_fromio are not available on that platform, and we have to prevent building the driver there. In case we want to backport this to older kernels: between linux-4.8 and linux-4.20, the Kconfig entry was in drivers/mtd/spi-nor/Kconfig but had the same problem. Link: https://lore.kernel.org/patchwork/patch/812860/ Fixes: 161aaab8a067 ("mtd: atmel-quadspi: add driver for Atmel QSPI controller") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
2018-11-13spi: npcm: add NPCM PSPI controller driverTomer Maimon1-0/+7
Add Nuvoton NPCM BMC Peripheral SPI controller driver. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-07spi: Kconfig: Enable McSPI driver for K3 platformsVignesh R1-1/+1
Enable McSPI driver to be built for K3 platforms, to support McSPI on AM654 SoC of K3 family. Signed-off-by: Vignesh R <vigneshr@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-07spi: Add QuadSPI driver for Atmel SAMA5D2Piotr Bugalski1-0/+9
Kernel contains QSPI driver strongly tied to MTD and nor-flash memory. New spi-mem interface allows usage also other memory types, especially much larger NAND with SPI interface. This driver works as SPI controller and is not related to MTD, however can work with NAND-flash or other peripherals using spi-mem interface. Suggested-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Piotr Bugalski <bugalski.piotr@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-05spi: Add MXIC controller driverMason Yang1-0/+6
Add a driver for Macronix SPI controller IP. Signed-off-by: Mason Yang <masonccyang@mxic.com.tw> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-25Merge tag 'mfd-next-4.20' of ↵Linus Torvalds1-0/+8
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers - Add support for USART SPI to AT91* New Functionality - Add support for Audio CODECs to motorola-cpcap Fix-ups - DT documentation fix-ups; atmel-usart - Staticise functions/structs; spi-at91-usart, arizona-core - Constify; ti-lmu - Fix memory leaks; menelaus - Change device 'wake-up' status; ti_am335x_tscadc, max8997 - Power Management (suspend/resume) semantic changes; ti_am335x_adc, cros_ec, max8997 - SPDX churn; sec-core (+ headers), max* (+ headers), intel* (+ headers), - Trivial (whitespace, email addresses, alphabetisise); Kconfig, adp5520, intel_soc_pmic_* - Build as module; sec-irq - Use new %pOFn printk format for device_node.name; max77620 - Remove unused code; madera - Use generic MACROs; intel_msic, intel_soc_pmic_crc - Move to GPIOD; ti-lmu - Use managed resources; ti-lmu Bug Fixes - Add missing headers; at91-usart - Prevent device from entering low-power mode; arizona-core - Poll for BOOT_DONE to avoid still-booting NACK; madera-core - Prevent ADC read from shutting down device; mc13xxx-core" * tag 'mfd-next-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (45 commits) mfd: cros_ec: Avoid unneeded internal declaration warning mfd: ti-lmu: Use of_device_get_match_data() helper mfd: ti-lmu: Use managed resource for everything mfd: ti-lmu: Switch to GPIOD mfd: ti-lmu: constify mfd_cell tables mfd: max8997: Disable interrupt handling for suspend/resume cycle mfd: max8997: Enale irq-wakeup unconditionally mfd: arizona: Make array mclk_name static, shrinks object size MAINTAINERS: Add myself as designated reviewer of Intel MFD PMIC mfd: Convert Intel PMIC drivers to use SPDX identifier 1;5201;0c Reduce size of duplicated comments by switching to use SPDX identifier. mfd: Sort headers alphabetically for Intel PMIC drivers mfd: intel_soc_pmic_bxtwc: Chain power button IRQs as well mfd: intel_soc_pmic_crc: Use REGMAP_IRQ_REG() macro mfd: intel_soc_pmic_crc: Use DEFINE_RES_IRQ_NAMED() macro mfd: intel_msic: Use DEFINE_RES_IRQ() macro mfd: motorola-cpcap: Add audio-codec support mfd: mc13xxx-core: Fix PMIC shutdown when reading ADC values mfd: madera: Remove unused forward reference mfd: max77620: Convert to using %pOFn instead of device_node.name mfd: madera: Don't use regmap_read_poll_timeout to poll for BOOT_DONE ...
2018-10-21spi: Allow building SPI_BCM63XX_HSSPI on ARM-based SoCsFlorian Fainelli1-1/+1
ARM-based 63xx DSL platforms have the spi-bcm63xx-hsspi controller present, allow using this driver there as well. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-19spi: spi-mem: add stm32 qspi controllerLudovic Barre1-0/+9
The qspi controller is a specialized communication interface targeting single, dual or quad SPI Flash memories (NOR/NAND). It can operate in any of the following modes: -indirect mode: all the operations are performed using the quadspi registers -read memory-mapped mode: the external Flash memory is mapped to the microcontroller address space and is seen by the system as if it was an internal memory tested on: -NOR: mx66l51235l -NAND: MT29F2G01ABAGD Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-11spi: spi-geni-qcom: Add SPI driver support for GENI based QUPGirish Mahadevan1-0/+12
This driver supports GENI based SPI Controller in the Qualcomm SOCs. The Qualcomm Generic Interface (GENI) is a programmable module supporting a wide range of serial interfaces including SPI. This driver supports SPI operations using FIFO mode of transfer. Signed-off-by: Girish Mahadevan <girishm@codeaurora.org> Signed-off-by: Dilip Kota <dkota@codeaurora.org> Signed-off-by: Alok Chauhan <alokc@codeaurora.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Tested-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-11spi: Introduce new driver for Qualcomm QuadSPI controllerGirish Mahadevan1-0/+6
New driver for Qualcomm QuadSPI(QSPI) controller that is used to communicate with slaves such as flash memory devices. The QSPI controller can operate in 2 or 4 wire mode but only supports SPI Mode 0. The controller can also operate in Single or Dual data rate modes. Signed-off-by: Girish Mahadevan <girishm@codeaurora.org> Signed-off-by: Ryan Case <ryandcase@chromium.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-28spi: mediatek: add spi slave for Mediatek MT2712Leilk Liu1-0/+10
This patch adds basic spi slave for MT2712. Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-10spi: at91-usart: Add driver for at91-usart as SPIRadu Pirea1-0/+8
This is the driver for at91-usart in spi mode. The USART IP can be configured to work in many modes and one of them is SPI. The driver was tested on sama5d3-xplained and sama5d4-xplained boards with enc28j60 ethernet controller as slave. Signed-off-by: Radu Pirea <radu.pirea@microchip.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviwed-by: Mark Brown <broonie@kernel.org> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-03 22:25:05 +0300