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2016-09-30Merge remote-tracking branches 'spi/topic/rspi', 'spi/topic/sc18is602', 'spi/topic/sh-msiof', 'spi/topic/spidev-test' and 'spi/topic/st-ssc4' into spi-nextMark Brown1-1/+1
2016-09-30Merge remote-tracking branches 'spi/topic/octeon', 'spi/topic/pic32-sqi', 'spi/topic/pxa2xx' and 'spi/topic/qup' into spi-nextMark Brown1-0/+7
2016-09-30Merge remote-tracking branches 'spi/topic/fsl-espi', 'spi/topic/imx', 'spi/topic/jcore', 'spi/topic/loopback' and 'spi/topic/meson' into spi-nextMark Brown1-0/+7
2016-09-14spi: bcm-qspi: Add Broadcom MSPI driverKamal Dasu1-0/+10
Master SPI driver for Broadcom settop, iProc SoCs. The driver is used for devices that use SPI protocol on BRCMSTB, NSP, NS2 SoCs. SoC platform driver call exported porbe(), remove() and suspend/resume pm_ops implemented in this common driver. Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com> Signed-off-by: Yendapally Reddy Dhananjaya Reddy Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-01spi: sh-msiof: Use ARCH_SHMOBILE instead of SUPERHGeert Uytterhoeven1-1/+1
"spi_sh_msiof" is used on sh7723 and sh7724 only. As all of the above select ARCH_SHMOBILE, restrict its driver dependencies from SUPERH to ARCH_SHMOBILE. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-19spi: octeon: Add ThunderX driverJan Glauber1-0/+7
Add ThunderX SPI driver using the shared part from the Octeon driver. The main difference of the ThunderX driver is that it is a PCI device so probing is different. The system clock settings can be specified in device tree. Signed-off-by: Jan Glauber <jglauber@cavium.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08spi: add driver for J-Core SPI controllerRich Felker1-0/+7
The J-Core "spi2" device is a PIO-based SPI master controller. It differs from "bitbang" devices in that that it's clocked in hardware rather than via soft clock modulation over gpio, and performs byte-at-a-time transfers between the cpu and SPI controller. This driver will be extended to support future versions of the J-Core SPI controller with DMA transfers when they become available. Signed-off-by: Rich Felker <dalias@libc.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-08spi: omap2-mcspi: Select SPI_SPLITFranklin S Cooper Jr1-0/+1
The function sg_split will be used by spi-omap2-mcspi to handle a SoC workaround in the SPI driver. Therefore, select SG_SPLIT so this function is available to the driver. Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-23Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/qup', 'spi/topic/rockchip', 'spi/topic/st-ssc4' and 'spi/topic/xlp' into spi-nextMark Brown1-2/+2
2016-05-23Merge remote-tracking branches 'spi/topic/octeon', 'spi/topic/omap2-mcspi', 'spi/topic/orion', 'spi/topic/pic32' and 'spi/topic/pic32-qspi' into spi-nextMark Brown1-1/+14
2016-05-13spi: pic32-sqi: Fix linker error, undefined reference to `bad_dma_ops'.Purna Chandra Mandal1-0/+1
Even if DMA support is disabled code using DMA mapping APIs compiles fine, but fails in linking. ------- drivers/built-in.o: In function `ring_desc_ring_free': spi-pic32-sqi.c:(.text+0x2cfbe0): undefined reference to `bad_dma_ops' spi-pic32-sqi.c:(.text+0x2cfbe4): undefined reference to `bad_dma_ops' drivers/built-in.o: In function `pic32_sqi_probe': spi-pic32-sqi.c:(.text+0x2cfe48): undefined reference to `bad_dma_ops' spi-pic32-sqi.c:(.text+0x2cfeb0): undefined reference to `bad_dma_ops' spi-pic32-sqi.c:(.text+0x2cff38): undefined reference to `bad_dma_ops' -------- Correct dependency by adding 'depends on HAS_DMA' in Kconfig. Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-02spi: Drop unnecessary dependencies on relaxed I/O accessorsAxel Lin1-2/+0
The relaxed I/O accessors are available on all architectures now. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-29spi: st-ssc4: Allow compile test buildAxel Lin1-1/+1
There is no build dependency for this driver, so enable COMPILE_TEST to get better build coverage. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-22spi: spi-orion: enable the driver on ARCH_MVEBU platformsThomas Petazzoni1-1/+1
The SPI controller managed by the spi-orion is used on the new ARM64 Marvell Armada 7K/8K SoCs. In order to allow this driver to be built for this platform, we allow it to be selected for ARCH_MVEBU=y configurations. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-18spi: pic32-sqi: add SPI driver for PIC32 SQI controller.Purna Chandra Mandal1-0/+6
This driver implements SPI master interface for Quad SPI controller, specifically for accessing quad SPI flash. It uses descriptor-based DMA transfer mode and supports half-duplex communication for single, dual and quad SPI transactions. Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com> Cc: Mark Brown <broonie@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-04spi: spi-pic32: Add PIC32 SPI master driverPurna Chandra Mandal1-0/+6
The PIC32 SPI driver is capable of performing SPI transfers using PIO or external DMA engine. GPIO controlled /CS support is made default in the driver for correct operation of the controller. This can be enabled by adding "cs-gpios" property of the SPI node in board dts file. Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-23spi: xlp: Enable SPI driver for Broadcom Vulcan ARM64Kamlakant Patel1-1/+1
- Vulcan spi controller is compatible with netlogic,xlp832-spi. - Add depends on ARCH_VULCAN to Kconfig to enable spi controller driver for Broadcom Vulcan ARM64 SoCs. Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-11Merge remote-tracking branches 'spi/topic/res', 'spi/topic/rockchip', 'spi/topic/sh', 'spi/topic/ti-qspi' and 'spi/topic/xilinx' into spi-nextMark Brown1-3/+3
2016-03-11Merge remote-tracking branches 'spi/topic/lp8841', 'spi/topic/msg', 'spi/topic/pl022' and 'spi/topic/pxa2xx' into spi-nextMark Brown1-4/+10
2016-03-11Merge remote-tracking branches 'spi/topic/acpi', 'spi/topic/axi-engine', 'spi/topic/bcm2835' and 'spi/topic/bcm2835aux' into spi-nextMark Brown1-35/+41
2016-02-24spi: master driver to enable RTC on ICPDAS LP-8841Sergei Ianovich1-0/+10
ICP DAS LP-8841 contains a DS-1302 RTC. This driver provides an SPI master which makes the RTC usable. The driver is not supposed to work with anything else. The driver uses the standard MicroWire half-duplex transfer timing. Master output is set on low clock and sensed by the RTC on the rising edge. Master input is set by the RTC on the trailing edge and is sensed by the master on low clock. Signed-off-by: Sergei Ianovich <ynvich@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-18spi: sh-spi, sh-msiof, rspi: Use ARCH_RENESASSimon Horman1-3/+3
Make use of ARCH_RENESAS in place of ARCH_SHMOBILE. This is part of an ongoing process to migrate from ARCH_SHMOBILE to ARCH_RENESAS the motivation for which being that RENESAS seems to be a more appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-13spi: bcm2835: Remove duplicate depend on GPIOLIB in KconfigAxel Lin1-1/+0
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-09Merge branch 'topic/acpi' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-pxa2xxMark Brown1-1/+10
2016-02-08spi: Allow compile test of bcm2835aux if !GPIOLIBGeert Uytterhoeven1-2/+1
The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer functionality only, can still be compiled if GPIOLIB is not enabled. Relax the dependency of SPI_BCM2835AUX on GPIOLIB if COMPILE_TEST is enabled. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-05spi: Add Analog Devices AXI SPI Engine controller supportLars-Peter Clausen1-0/+8
This patch adds support for the AXI SPI Engine controller which is a FPGA soft-peripheral which is used in some of Analog Devices' reference designs. The AXI SPI Engine controller is part of the SPI Engine framework[1] and allows memory mapped access to the SPI Engine control bus. This allows it to be used as a general purpose software driven SPI controller. The SPI Engine in addition offers some optional advanced acceleration and offloading capabilities, which are not part of this patch though and will be introduced separately. At the core of the SPI Engine framework is a small sort of co-processor that accepts a command stream and turns the commands into low-level SPI transactions. Communication is done through three memory mapped FIFOs in the register map of the AXI SPI Engine peripheral. One FIFO for the command stream and one each for transmit and receive data. The driver translates a spi_message in a command stream and writes it to the peripheral which executes it asynchronously. This allows it to perform very precise timings which are required for some SPI slave devices to achieve maximum performance (e.g. analog-to-digital and digital-to-analog converters). The execution flow is synchronized to the host system by a special synchronize instruction which generates a interrupt. [1] https://wiki.analog.com/resources/fpga/peripherals/spi_engine Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-03spi: Fix sorting in KconfigMark Brown1-32/+32
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-15spi: pxa2xx: Remove CONFIG_SPI_PXA2XX_DMAJarkko Nikula1-4/+0
After removal of legacy PXA DMA code by the commit 6356437e65c2 ("spi: spi-pxa2xx: remove legacy PXA DMA bits") the CONFIG_SPI_PXA2XX_DMA follows the CONFIG_SPI_PXA2XX and cannot be disabled alone. Therefore remove this config symbol and dead definitions from the spi-pxa2xx.h. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-11Merge remote-tracking branches 'spi/topic/sun4i', 'spi/topic/topcliff-pch' and 'spi/topic/zynq' into spi-nextMark Brown1-1/+1
2015-12-12spi: add spi-loopback-test to build frameworkMartin Sperl1-0/+9
adding the spi-loopback-test module to Kconfig and Makefile Signed-off-by: Martin Sperl <kernel@martin.sperl.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-11-30spi: topcliff-pch: allow build for MIPS platformsPaul Burton1-1/+1
Allow the topcliff-pch driver to be built for MIPS platforms, in preparation for use on the MIPS Boston board. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-11-04Merge remote-tracking branches 'spi/topic/fsl-dspi', 'spi/topic/mpc512x', 'spi/topic/mtk', 'spi/topic/oc-tiny' and 'spi/topic/octeon' into spi-nextMark Brown1-1/+1
2015-11-04Merge remote-tracking branches 'spi/topic/bcm53xx', 'spi/topic/bcm63xx', 'spi/topic/bfin-sport', 'spi/topic/bfin5xx' and 'spi/topic/bitbang' into spi-nextMark Brown1-1/+1
2015-10-30spi: Add DSPI support for layerscape familyYuan Yao1-1/+1
LS1043a and LS2080A in the Layerscape family also support DSPI, make DSPI selectable for these hardwares. Signed-off-by: Yuan Yao <yao.yuan@freescale.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-10-23spi/bcm63xx: move register definitions into the driverJonas Gorski1-1/+1
Move all register definitions and structs into the driver. This allows us dropping the platform_data struct and drop any arch specific includes. Make use of different device names to identify the version of the block we have. Since we now have full control over the message width, we can drop the size check, which was broken anyway, since it never set ret to any error code. Also since we now have no arch depedendent resources, we can now allow compiling it for any arch, hidden behind COMPILE_TEST. Signed-off-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-10-07spi: bcm2835aux: add bcm2835 auxiliary spi device driverMartin Sperl1-0/+11
The bcm2835 has 2 auxiliary spi bus masters spi1 and spi2. This implements the driver to enable these devices. The driver does not implement native chip-selects but uses the aribtrary GPIO-chip-selects provided by the spi-chipselect. Note that this driver relies on the fact that the clock is implemented by the clk-bcm2835-aux driver, which enables/disables the HW block when requesting/releasing the clock. Signed-off-by: Martin Sperl <kernel@martin.sperl.org> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-31Merge remote-tracking branches 'spi/topic/ti-qspi', 'spi/topic/xcomm' and 'spi/topic/xlp' into spi-nextMark Brown1-0/+11
2015-08-31Merge remote-tracking branches 'spi/topic/mtk', 'spi/topic/pxa2xx', 'spi/topic/qspi', 'spi/topic/rockchip' and 'spi/topic/s3c24xx' into spi-nextMark Brown1-0/+9
2015-08-28spi/xlp: SPI controller driver for Netlogic XLP SoCsKamlakant Patel1-0/+11
Add SPI Master controller driver for the SPI interface on XLP8XX, XLP3XX, XLP2XX, XLP9XX and XLP5XX family of Netlogic XLP MIPS64 processors. Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-07spi: mediatek: Add spi bus for Mediatek MT8173Leilk Liu1-0/+9
This patch adds basic spi bus for MT8173. Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-07spi: SPI_ZYNQMP_GQSPI should depend on HAS_DMAGeert Uytterhoeven1-1/+1
If NO_DMA=y: ERROR: "dma_unmap_single" [drivers/spi/spi-zynqmp-gqspi.ko] undefined! ERROR: "dma_mapping_error" [drivers/spi/spi-zynqmp-gqspi.ko] undefined! ERROR: "dma_map_single" [drivers/spi/spi-zynqmp-gqspi.ko] undefined! Add a dependency on HAS_DMA to fix this. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Ranjit Waghmode <ranjitw@xilinx.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-18Merge remote-tracking branches 'spi/topic/sirf', 'spi/topic/spidev' and 'spi/topic/zynq' into spi-nextMark Brown1-0/+6
2015-06-18Merge remote-tracking branches 'spi/topic/pxa', 'spi/topic/rb4xx', 'spi/topic/rspi', 'spi/topic/s3c64xx' and 'spi/topic/sh-msiof' into spi-nextMark Brown1-8/+7
2015-06-18Merge remote-tracking branches 'spi/topic/fsl-dspi', 'spi/topic/gpio', 'spi/topic/imx' and 'spi/topic/orion' into spi-nextMark Brown1-2/+2
2015-06-18Merge remote-tracking branch 'spi/topic/bcm2835' into spi-nextMark Brown1-0/+1
2015-06-12spi: Add support for Zynq Ultrascale+ MPSoC GQSPI controllerRanjit Waghmode1-0/+6
This patch adds support for GQSPI controller driver used by Zynq Ultrascale+ MPSoC Signed-off-by: Ranjit Waghmode <ranjit.waghmode@xilinx.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-09spi: spi-pxa2xx: remove legacy PXA DMA bitsDaniel Mack1-8/+1
Generic DMA support was already implemented by commit cd7bed003404 ("spi/pxa2xx: break out the private DMA API usage into a separate file") which moved all the legacy PXA DMA implementation code into its own file. With generic DMA available for PXA, we can now just trash this file. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Mark Brown <broonie@linaro.org> [respin after pxa dmaengine support upstream] Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-05-11Merge remote-tracking branches 'spi/fix/fsl-cpm', 'spi/fix/fsl-dspi' and 'spi/fix/fsl-espi' into spi-linusMark Brown1-1/+1
2015-05-06spi: Allow compile test of GPIO consumers if !GPIOLIBGeert Uytterhoeven1-2/+2
The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer functionality only, can still be compiled if GPIOLIB is not enabled. Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where appropriate. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-05-04spi: bcm2835: depends GPIOLIBYoshinori Sato1-0/+1
I got following error on CONFIG_GPIOLIB=n. drivers/spi/spi-bcm2835.c: In function 'chip_match_name': drivers/spi/spi-bcm2835.c:356:21: error: dereferencing pointer to incomplete type 'struct gpio_chip' return !strcmp(chip->label, data); ^ drivers/spi/spi-bcm2835.c: In function 'bcm2835_spi_setup': drivers/spi/spi-bcm2835.c:382:9: error: implicit declaration of function 'gpiochip_find' [-Werror=implicit-function-declaration] chip = gpiochip_find("pinctrl-bcm2835", chip_match_name); ^ drivers/spi/spi-bcm2835.c:382:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion] chip = gpiochip_find("pinctrl-bcm2835", chip_match_name); ^ drivers/spi/spi-bcm2835.c: In function 'chip_match_name': drivers/spi/spi-bcm2835.c:357:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Mark Brown <broonie@kernel.org>
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