BMC/Intel-BMC/linux.git/include/linux/spi/spi.h, branch dev-4.6

Merge remote-tracking branches 'spi/topic/res', 'spi/topic/rockchip', 'spi/topic/sh', 'spi/topic/ti-qspi' and 'spi/topic/xilinx' into spi-next

2016-03-11T07:28:53+00:00

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

Merge remote-tracking branches 'spi/topic/doc', 'spi/topic/dw' and 'spi/topic/flash' into spi-next

2016-03-11T07:28:35+00:00

Merge remote-tracking branches 'spi/topic/acpi', 'spi/topic/axi-engine', 'spi/topic/bcm2835' and 'spi/topic/bcm2835aux' into spi-next

2016-03-11T07:28:25+00:00

spi: Fix htmldocs build error due struct spi_replaced_transfers

2016-03-11T07:23:01+00:00

The kernel-doc has to be just before the structure definition but the one for struct spi_replaced_transfers was before a structure declaration and that confuses kernel-doc which complains with the following build error: .//include/linux/spi/spi.h:933: error: Cannot parse struct or union! Signed-off-by: Javier Martinez Canillas Signed-off-by: Mark Brown

spi: docbook: fix parsing error

2016-02-18T16:59:53+00:00

Fixes docbook parsing error because documentation is not directly followed by the structure, but typedef used in structure. Reordering should solve that issue. Signed-off-by: Martin Sperl Signed-off-by: Mark Brown

spi: introduce accelerated read support for spi flash devices

2016-02-09T19:34:02+00:00

In addition to providing direct access to SPI bus, some spi controller hardwares (like ti-qspi) provide special port (like memory mapped port) that are optimized to improve SPI flash read performance. This means the controller can automatically send the SPI signals required to read data from the SPI flash device. For this, SPI controller needs to know flash specific information like read command to use, dummy bytes and address width. Introduce spi_flash_read() interface to support accelerated read over SPI flash devices. SPI master drivers can implement this callback to support interfaces such as memory mapped read etc. m25p80 flash driver and other flash drivers can call this make use of such interfaces. The interface should only be used with SPI flashes and cannot be used with other SPI devices. Signed-off-by: Vignesh R Signed-off-by: Mark Brown

spi: core: add spi_split_transfers_maxsize

2016-02-09T19:32:07+00:00

Add spi_split_transfers_maxsize method that splits spi_transfers transparently into multiple transfers that are below the given max-size. This makes use of the spi_res framework via spi_replace_transfers to allocate/free the extra transfers as well as reverting back the changes applied while processing the spi_message. Signed-off-by: Martin Sperl Signed-off-by: Mark Brown

spi: core: add spi_replace_transfers method

2016-02-09T19:32:07+00:00

Add the spi_replace_transfers method that can get used to replace some spi_transfers from a spi_message with other transfers. Signed-off-by: Martin Sperl Signed-off-by: Mark Brown

spi: core: added spi_resource management

2016-02-09T19:25:43+00:00

SPI resource management framework used while processing a spi_message via the spi-core. The basic idea is taken from devres, but as the allocation may happen fairly frequently, some provisioning (in the form of an unused spi_device pointer argument to spi_res_alloc) has been made so that at a later stage we may implement reuse objects allocated earlier avoiding the repeated allocation by keeping a cache of objects that we can reuse. This framework can get used for: * rewriting spi_messages * to fullfill alignment requirements of the spi_master HW * to fullfill transfer length requirements (e.g: transfers need to be less than 64k) * consolidate spi_messages with multiple transfers into a single transfer when the total transfer length is below a threshold. * reimplement spi_unmap_buf without explicitly needing to check if it has been mapped Signed-off-by: Martin Sperl Signed-off-by: Mark Brown