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b0c1936c44
The major highlight this release is a refactoring of the core to allow
us to run synchronous transfers in the context of the caller when there
is no contention for the bus. This improves performance in the very
common case by eliminating context switches and reducing the number of
hardware setup and teardown operations we need to perform.
Other changes:
- New drivers for DLN-2 USB-SPI adapter and ST SPI controllers.
- A big round of cleanups, performance and feature improvements
for the xilinx driver from Ricardo Ribalda Delgado.
- A wide range of smaller cleanups, fixes and feature improvements
throughout the subsystem.
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Merge tag 'spi-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"The major highlight this release is a refactoring of the core to allow
us to run synchronous transfers in the context of the caller when
there is no contention for the bus. This improves performance in the
very common case by eliminating context switches and reducing the
number of hardware setup and teardown operations we need to perform.
Other changes:
- New drivers for DLN-2 USB-SPI adapter and ST SPI controllers.
- A big round of cleanups, performance and feature improvements for
the xilinx driver from Ricardo Ribalda Delgado.
- A wide range of smaller cleanups, fixes and feature improvements
throughout the subsystem"
* tag 'spi-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (68 commits)
spi: mxs: cleanup wait_for_completion return handling
spi: ti-qspi: cleanup wait_for_completion return handling
spi: spi-imx: cleanup wait_for_completion handling
spi: sh-msiof: cleanup wait_for_completion return handling
spi: match var type to return type of wait_for_completion
spi: spi-pxa2xx: only include mach/dma.h for legacy DMA
spi: atmel: cleanup wait_for_completion return handling
spi: fsl-dspi: Remove possible memory leak of 'chip'
spi: sh-msiof: Update calculation of frequency dividing
spi: spidev: Convert buf pointers for 32-bit compat SPI_IOC_MESSAGE(n)
spi/xilinx: Fix access invalid memory on xilinx_spi_tx
spi: Revert "spi/xilinx: Remove iowrite/ioread wrappers"
spi/xilinx: Check number of slaves range
spi/xilinx: Use polling mode on small transfers
spi/xilinx: Remove remaining_words driver data variable
spi/xilinx: Remove iowrite/ioread wrappers
spi/xilinx: Convert bits_per_word in bytes_per_word
spi/xilinx: Convert remainding_bytes in remaining words
spi/xilinx: Make spi_tx and spi_rx simmetric
spi/xilinx: Remove rx_fn and tx_fn pointer
...
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