kernel/git/stable/linux.git/drivers/spi/Makefile, branch linux-4.7.y

spi: pic32-sqi: add SPI driver for PIC32 SQI controller.

2016-04-18T16:52:46+00:00

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 Cc: Mark Brown Signed-off-by: Mark Brown

spi: spi-pic32: Add PIC32 SPI master driver

2016-04-04T17:04:29+00:00

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 Signed-off-by: Mark Brown

Merge remote-tracking branches 'spi/topic/lp8841', 'spi/topic/msg', 'spi/topic/pl022' and 'spi/topic/pxa2xx' into spi-next

2016-03-11T07:28:43+00:00

spi: master driver to enable RTC on ICPDAS LP-8841

2016-02-24T04:09:08+00:00

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 Acked-by: Rob Herring Signed-off-by: Mark Brown

Merge branch 'topic/acpi' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-pxa2xx

2016-02-09T18:20:39+00:00

spi: Add Analog Devices AXI SPI Engine controller support

2016-02-05T18:12:57+00:00

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 Signed-off-by: Mark Brown

spi: pxa2xx: Remove CONFIG_SPI_PXA2XX_DMA

2016-01-15T18:13:17+00:00

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 Signed-off-by: Mark Brown

spi: add spi-loopback-test to build framework

2015-12-12T23:05:18+00:00

adding the spi-loopback-test module to Kconfig and Makefile Signed-off-by: Martin Sperl Signed-off-by: Mark Brown

spi: bcm2835aux: add bcm2835 auxiliary spi device driver

2015-10-07T10:42:57+00:00

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 Acked-by: Eric Anholt Signed-off-by: Mark Brown

Merge remote-tracking branches 'spi/topic/ti-qspi', 'spi/topic/xcomm' and 'spi/topic/xlp' into spi-next

2015-08-31T13:45:45+00:00