An error occurred fetching the project authors.
- 24 Feb, 2016 1 commit
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Sergei Ianovich authored
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>
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- 13 Feb, 2016 1 commit
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Axel Lin authored
Signed-off-by:
Axel Lin <axel.lin@ingics.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 08 Feb, 2016 1 commit
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Geert Uytterhoeven authored
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>
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- 05 Feb, 2016 1 commit
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Lars-Peter Clausen authored
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_engineSigned-off-by:
Lars-Peter Clausen <lars@metafoo.de> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 03 Feb, 2016 1 commit
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Mark Brown authored
Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 15 Jan, 2016 1 commit
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Jarkko Nikula authored
After removal of legacy PXA DMA code by the commit 6356437e ("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>
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- 12 Dec, 2015 1 commit
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Martin Sperl authored
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>
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- 30 Nov, 2015 1 commit
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Paul Burton authored
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>
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- 30 Oct, 2015 1 commit
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Yuan Yao authored
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>
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- 22 Oct, 2015 1 commit
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Jonas Gorski authored
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>
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- 07 Oct, 2015 1 commit
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Martin Sperl authored
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>
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- 28 Aug, 2015 1 commit
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Kamlakant Patel authored
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>
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- 07 Aug, 2015 1 commit
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Leilk Liu authored
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>
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- 07 Jul, 2015 1 commit
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Geert Uytterhoeven authored
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>
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- 12 Jun, 2015 1 commit
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Ranjit Waghmode authored
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>
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- 09 Jun, 2015 1 commit
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Daniel Mack authored
Generic DMA support was already implemented by commit cd7bed00 ("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>
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- 06 May, 2015 1 commit
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Geert Uytterhoeven authored
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>
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- 04 May, 2015 1 commit
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Yoshinori Sato authored
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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- 24 Apr, 2015 1 commit
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Haikun Wang authored
LS1021A chip also has the DSPI module. Add it to the dependence. Signed-off-by:
Haikun Wang <haikun.wang@freescale.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 18 Apr, 2015 1 commit
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Bert Vermeulen authored
This driver mediates access between the connected CPLD and other devices on the bus. The m25p80-compatible boot flash and (some models) MMC use regular SPI, bitbanged as required by the SoC. However the SPI-connected CPLD has a two-wire mode, in which two bits are transferred per SPI clock cycle. The second bit is transmitted with the SoC's CS2 pin. Signed-off-by:
Bert Vermeulen <bert@biot.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 14 Apr, 2015 1 commit
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Guenter Roeck authored
Fix: drivers/spi/spi-bcm2835.c: In function 'chip_match_name': drivers/spi/spi-bcm2835.c:356:21: error: dereferencing pointer to incomplete type drivers/spi/spi-bcm2835.c: In function 'bcm2835_spi_setup': drivers/spi/spi-bcm2835.c:382:2: error: ` implicit declaration of function 'gpiochip_find' drivers/spi/spi-bcm2835.c:387:21: error: dereferencing pointer to incomplete type by adding the now mandatory GPIOLIB dependency. Fixes: a30a555d ("spi: bcm2835: transform native-cs to gpio-cs on first spi_setup") Cc: Martin Sperl <kernel@martin.sperl.org> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 09 Mar, 2015 2 commits
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Andy Shevchenko authored
intel_mid_dma seems to be unmaintained for a long time. Moreover, the IP block of DMA itself is the same in both dw_dmac and intel_mid_dma. This patch moves spi-dw-midpci to use dw_dmac driver. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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Michal Simek authored
Remove Kconfig dependency and enable driver for all ARCHs. Also update help description. Signed-off-by:
Michal Simek <michal.simek@xilinx.com> Acked-by:
Sören Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 28 Jan, 2015 2 commits
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Chao Fu authored
DSPI module need cs change information in a spi transfer. According to cs change, DSPI will give last data the right flag. Bitbang provide cs change behind the last data in a transfer. So DSPI can not deal the last data in every transfer properly, so remove the bitbang in the driver. Signed-off-by:
Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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Arnd Bergmann authored
The pl08x driver originally selected S3C64XX_PL080 to avoid having the legacy Samsung DMA interfaces. Those are now gone, so the select is no longer needed, but it now causes problems when CONFIG_DMA_ENGINE is disabled: arch/arm/plat-samsung/built-in.o: In function `s3c64xx_spi0_set_platdata': :(.init.text+0x518): undefined reference to `pl08x_filter_id' This simply removes the 'select' to avoid this problem. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 16 Jan, 2015 1 commit
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Michal Simek authored
Trivial fix. Signed-off-by:
Michal Simek <michal.simek@xilinx.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 07 Jan, 2015 1 commit
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Christoph Jaeger authored
Support for keyword 'boolean' will be dropped later on. No functional change. Reference: http://lkml.kernel.org/r/cover.1418003065.git.cj@linux.comSigned-off-by:
Christoph Jaeger <cj@linux.com> Signed-off-by:
Michal Marek <mmarek@suse.cz>
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- 06 Jan, 2015 1 commit
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Esben Haabendal authored
Signed-off-by:
Esben Haabendal <eha@deif.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 22 Dec, 2014 2 commits
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Laurentiu Palcu authored
This adds support for Diolan DLN2 USB-SPI adapter. Information about the USB protocol interface can be found in the Programmer's Reference Manual [1], see section 5.4.6 for the SPI master module commands and responses. [1] https://www.diolan.com/downloads/dln-api-manual.pdfSigned-off-by:
Laurentiu Palcu <laurentiu.palcu@intel.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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Lee Jones authored
This patch adds support for the SPI portion of ST's SSC device. Signed-off-by:
Lee Jones <lee.jones@linaro.org> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 27 Nov, 2014 1 commit
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Beniamino Galvani authored
The Meson SPIFC driver uses regmap mmio functions and so it must select REGMAP_MMIO to avoid the following build error: spi-meson-spifc.c: undefined reference to `devm_regmap_init_mmio_clk' Reported-by:
Jim Davis <jim.epost@gmail.com> Signed-off-by:
Beniamino Galvani <b.galvani@gmail.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 26 Nov, 2014 1 commit
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Padmavathi Venna authored
Exynos7 SPI controller supports only the auto Selection of CS toggle mode and Exynos7 SoC includes six SPI controllers. Add support for these changes in Exynos7 SPI controller driver. Signed-off-by:
Padmavathi Venna <padma.v@samsung.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 24 Nov, 2014 1 commit
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Beniamino Galvani authored
This is a driver for the Amlogic Meson SPIFC (SPI flash controller), which is one of the two SPI controllers available on the SoC. It doesn't support DMA and has a 64-byte unified transmit/receive buffer. The device is optimized for interfacing with SPI NOR memories and allows the execution of standard operations such as read, page program, sector erase, etc. in a simplified way, toggling a bit in a dedicated register. The driver doesn't use those predefined commands and relies only on custom transfers. Signed-off-by:
Beniamino Galvani <b.galvani@gmail.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 17 Nov, 2014 1 commit
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Andrew Bresticker authored
Add support for the Synchronous Peripheral Flash Interface (SPFI) master controller found on IMG SoCs. The SPFI controller supports 5 chip-select lines and single/dual/quad mode SPI transfers. Signed-off-by:
Andrew Bresticker <abrestic@chromium.org> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 26 Sep, 2014 1 commit
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Axel Lin authored
config SPI_BCM53XX needs to depend on BCMA_POSSIBLE and select BCMA. This fixes below build error: ERROR: "bcma_driver_unregister" [drivers/spi/spi-bcm53xx.ko] undefined! ERROR: "__bcma_driver_register" [drivers/spi/spi-bcm53xx.ko] undefined! Signed-off-by:
Axel Lin <axel.lin@ingics.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 13 Sep, 2014 1 commit
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Andy Shevchenko authored
The support of the Moorestown was removed [1] from kernel long time ago. This is just a follow up of that change. [1] http://www.spinics.net/lists/platform-driver-x86/msg02948.htmlSigned-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 31 Aug, 2014 1 commit
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Geert Uytterhoeven authored
commit dd1053a9 ("spi/drivers: Enable build of drivers with COMPILE_TEST") allows compile-testing drivers on platforms they're not meant for. However, adding "|| COMPILE_TEST" bypasses all other implicit dependencies assumed by the platform dependencies before, like HAS_DMA. If NO_DMA=y: drivers/built-in.o: In function `atmel_spi_dma_unmap_xfer': drivers/spi/spi-atmel.c:915: undefined reference to `dma_unmap_single' drivers/spi/spi-atmel.c:918: undefined reference to `dma_unmap_single' drivers/built-in.o: In function `atmel_spi_next_xfer_data': drivers/spi/spi-atmel.c:690: undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `atmel_spi_dma_map_xfer': drivers/spi/spi-atmel.c:890: undefined reference to `dma_map_single' drivers/spi/spi-atmel.c:893: undefined reference to `dma_mapping_error' drivers/spi/spi-atmel.c:897: undefined reference to `dma_map_single' drivers/spi/spi-atmel.c:900: undefined reference to `dma_mapping_error' drivers/spi/spi-atmel.c:902: undefined reference to `dma_unmap_single' drivers/built-in.o: In function `atmel_spi_probe': drivers/spi/spi-atmel.c:1540: undefined reference to `dma_alloc_coherent' drivers/spi/spi-atmel.c:1623: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `atmel_spi_remove': drivers/spi/spi-atmel.c:1665: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `ep93xx_spi_dma_finish': drivers/spi/spi-ep93xx.c:550: undefined reference to `dma_unmap_sg' drivers/built-in.o: In function `ep93xx_spi_dma_prepare': drivers/spi/spi-ep93xx.c:516: undefined reference to `dma_map_sg' drivers/spi/spi-ep93xx.c:522: undefined reference to `dma_unmap_sg' drivers/built-in.o: In function `omap2_mcspi_rx_dma': drivers/spi/spi-omap2-mcspi.c:475: undefined reference to `dma_unmap_single' drivers/built-in.o: In function `omap2_mcspi_txrx_dma': drivers/spi/spi-omap2-mcspi.c:589: undefined reference to `dma_unmap_single' drivers/built-in.o: In function `omap2_mcspi_transfer_one_message': drivers/spi/spi-omap2-mcspi.c:1202: undefined reference to `dma_map_single' drivers/spi/spi-omap2-mcspi.c:1204: undefined reference to `dma_mapping_error' drivers/spi/spi-omap2-mcspi.c:1211: undefined reference to `dma_map_single' drivers/spi/spi-omap2-mcspi.c:1213: undefined reference to `dma_mapping_error' drivers/spi/spi-omap2-mcspi.c:1217: undefined reference to `dma_unmap_single' drivers/built-in.o: In function `tegra_spi_deinit_dma_param': drivers/spi/spi-tegra114.c:675: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `tegra_spi_copy_spi_rxbuf_to_client_rxbuf': drivers/spi/spi-tegra114.c:415: undefined reference to `dma_sync_single_for_cpu' drivers/spi/spi-tegra114.c:440: undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `tegra_spi_copy_client_txbuf_to_spi_txbuf': drivers/spi/spi-tegra114.c:381: undefined reference to `dma_sync_single_for_cpu' drivers/spi/spi-tegra114.c:405: undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `tegra_spi_start_dma_based_transfer': drivers/spi/spi-tegra114.c:543: undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `tegra_slink_deinit_dma_param': drivers/spi/spi-tegra20-slink.c:705: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `tegra_slink_copy_spi_rxbuf_to_client_rxbuf': drivers/spi/spi-tegra20-slink.c:427: undefined reference to `dma_sync_single_for_cpu' drivers/spi/spi-tegra20-slink.c:452: undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `tegra_slink_copy_client_txbuf_to_spi_txbuf': drivers/spi/spi-tegra20-slink.c:393: undefined reference to `dma_sync_single_for_cpu' drivers/spi/spi-tegra20-slink.c:417: undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `tegra_slink_start_dma_based_transfer': drivers/spi/spi-tegra20-slink.c:561: undefined reference to `dma_sync_single_for_cpu' Add dependencies on HAS_DMA to fix this. Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
Mark Brown <broonie@kernel.org>
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- 19 Aug, 2014 1 commit
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Rafał Miłecki authored
Broadcom 53xx ARM SoCs use bcma bus that contains various cores (AKA devices). If board has a serial flash, it's connected over SPI and the bcma bus includes a SPI controller. Example log from such a board: bus0: Found chip with id 53010, rev 0x00 and package 0x02 (...) bus0: Core 18 found: SPI flash controller (manuf 0x4BF, id 0x50A, rev 0x01, class 0x0) This patch adds a bcma driver for SPI core, it registers SPI master controller and "bcm53xxspiflash" SPI device. Signed-off-by:
Rafał Miłecki <zajec5@gmail.com> Signed-off-by:
Mark Brown <broonie@linaro.org>
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- 16 Aug, 2014 1 commit
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Chew, Chiau Ee authored
SPI PXA2XX core layer has dependency on common clock framework to obtain information on host supported clock rate. Thus, we setup the clock device in the PCI glue layer to enable PCI mode host pass in the clock rate information. Signed-off-by:
Chew, Chiau Ee <chiau.ee.chew@intel.com> Acked-by:
Kweh, Hock Leong <hock.leong.kweh@intel.com> Acked-by:
Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by:
Mark Brown <broonie@linaro.org>
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- 10 Jul, 2014 1 commit
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Geert Uytterhoeven authored
As of commit ab116a4d ("dmaengine: shdma: fix a build failure on platforms with no DMA support"), the DMA filter function shdma_chan_filter() is sufficiently abstracted to allow building without DMA support. Hence drop the SH_DMAE_BASE dependency on SUPERH. Also increase build coverage by allowing the driver to be enabled if COMPILE_TEST=y. Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
Mark Brown <broonie@linaro.org>
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