OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
linux/drivers/spi
History
Mark Brown 3a2eba9bd0 spi: Provide core support for full duplex devices 
It is fairly common for SPI devices to require that one or both transfer
directions is always active. Currently drivers open code this in various
ways with varying degrees of efficiency. Start factoring this out by
providing flags SPI_MASTER_MUST_TX and SPI_MASTER_MUST_RX. These will cause
the core to provide buffers for the requested direction if none are
specified in the underlying transfer.

Currently this is fairly inefficient since we actually allocate a data
buffer which may get large, support for mapping transfers using a
scatterlist will allow us to avoid this for DMA based transfers.

Signed-off-by: Mark Brown <broonie@linaro.org>
 		2014-02-04 20:31:33 +00:00
..
Kconfig spi: Updates for v3.14 2014-01-25 13:20:36 -08:00
Makefile spi: bcm63xx-hsspi: add bcm63xx HSSPI driver 2013-12-04 13:29:13 +00:00
spi-altera.c spi: altera: Remove unneeded NULL checking for hw->bitbang.master 2014-01-13 10:12:45 +00:00
spi-ath79.c spi: ath79: Use devm_*() functions 2013-12-17 22:53:36 +00:00
spi-atmel.c spi: atmel: Refactor spi-atmel to use SPI framework queue 2014-01-09 17:41:23 +00:00
spi-au1550.c Merge remote-tracking branch 'spi/topic/probe' into spi-next 2013-10-25 09:51:36 +01:00
spi-bcm63xx-hsspi.c spi/bcm63xx-hsspi: fix pm sleep support 2013-12-17 22:32:17 +00:00
spi-bcm63xx.c Merge remote-tracking branches 'spi/topic/bcm2835', 'spi/topic/bcm63xx', 'spi/topic/bcm63xx-hsspi', 'spi/topic/bitbang', 'spi/topic/bpw', 'spi/topic/clps711x', 'spi/topic/coldfire', 'spi/topic/davinci', 'spi/topic/dw' and 'spi/topic/falcon' into spi-linus 2014-01-23 13:07:05 +00:00
spi-bcm2835.c spi: bcm2835: Use devm_request_irq() 2013-12-17 22:58:18 +00:00
spi-bfin-sport.c Merge remote-tracking branch 'spi/topic/bfin' into spi-next 2013-10-25 09:51:21 +01:00
spi-bfin-v3.c spi: bfin-v3: use devm_spi_register_master() 2013-09-26 11:42:23 +01:00
spi-bfin5xx.c Merge remote-tracking branch 'spi/topic/bfin' into spi-next 2013-10-25 09:51:21 +01:00
spi-bitbang-txrx.h spi: bitbang: Grammar s/make to make/to make/ 2014-01-13 11:24:21 +00:00
spi-bitbang.c spi: bitbang: Fix checkpatch issue 2013-10-14 18:23:48 +01:00
spi-butterfly.c Merge remote-tracking branch 'spi/topic/butterfly' into spi-next 2013-10-25 09:51:23 +01:00
spi-clps711x.c spi: clps711x: Add MODULE_ALIAS to support module auto-loading 2014-01-14 14:21:43 +00:00
spi-coldfire-qspi.c spi: coldfire-qspi: remove redundant return value check of platform_get_resource() 2013-12-09 17:04:56 +00:00
spi-davinci.c Merge remote-tracking branches 'spi/topic/bcm2835', 'spi/topic/bcm63xx', 'spi/topic/bcm63xx-hsspi', 'spi/topic/bitbang', 'spi/topic/bpw', 'spi/topic/clps711x', 'spi/topic/coldfire', 'spi/topic/davinci', 'spi/topic/dw' and 'spi/topic/falcon' into spi-linus 2014-01-23 13:07:05 +00:00
spi-dw-mid.c dmaengine: remove DMA unmap flags 2013-11-14 11:04:38 -08:00
spi-dw-mmio.c spi: dw-mmio: prepare the clock before enabling 2013-12-31 12:30:22 +00:00
spi-dw-pci.c Merge remote-tracking branches 'spi/topic/fsl-espi', 'spi/topic/gpio', 'spi/topic/hspi', 'spi/topic/mpc512x', 'spi/topic/msiof', 'spi/topic/nuc900', 'spi/topic/oc-tiny', 'spi/topic/omap', 'spi/topic/orion' and 'spi/topic/pci' into spi-linus 2014-01-23 13:07:09 +00:00
spi-dw.c spi: dw: fix memory leak on error path 2013-12-31 12:30:25 +00:00
spi-dw.h spi: dw: use managed resources 2013-12-31 12:30:18 +00:00
spi-efm32.c spi: efm32: drop unused struct and fix size check 2013-10-09 12:00:42 +01:00
spi-ep93xx.c Merge remote-tracking branch 'spi/topic/bfin' into spi-next 2013-10-25 09:51:21 +01:00
spi-falcon.c spi: falcon: Use devm_spi_register_master() 2013-12-04 12:54:52 +00:00
spi-fsl-cpm.c DeviceTree updates for 3.13. This is a bit larger pull request than 2013-11-12 16:52:17 +09:00
spi-fsl-cpm.h
…
spi-fsl-dspi.c Merge remote-tracking branches 'spi/topic/bcm2835', 'spi/topic/bcm63xx', 'spi/topic/bcm63xx-hsspi', 'spi/topic/bitbang', 'spi/topic/bpw', 'spi/topic/clps711x', 'spi/topic/coldfire', 'spi/topic/davinci', 'spi/topic/dw' and 'spi/topic/falcon' into spi-linus 2014-01-23 13:07:05 +00:00
spi-fsl-espi.c spi/fsl-espi: Add Power Management support for eSPI controller 2013-12-12 11:50:02 +00:00
spi-fsl-lib.c spi: use dev_get_platdata() 2013-08-29 13:56:23 +01:00
spi-fsl-lib.h
…
spi-fsl-spi.c tree-wide: use reinit_completion instead of INIT_COMPLETION 2013-11-15 09:32:21 +09:00
spi-fsl-spi.h
…
spi-gpio.c spi: spi-gpio: Use 'cansleep' variants to access GPIO 2013-11-24 14:12:36 +00:00
spi-imx.c spi: spi-imx: Fix out-of-order CS/SCLK operation at low speeds 2013-12-20 11:53:57 +00:00
spi-lm70llp.c spi: bitbang: Let spi_bitbang_start() take a reference to master 2013-10-07 14:50:43 +01:00
spi-mpc52xx-psc.c spi: Don't break user-visible strings to multiple source lines in drivers 2013-10-16 19:07:15 +01:00
spi-mpc52xx.c
…
spi-mpc512x-psc.c Merge remote-tracking branch 'agust/next' into next 2014-01-29 16:53:55 +11:00
spi-mxs.c spi: Remove duplicate code to set default bits_per_word setting 2014-01-17 15:54:22 +00:00
spi-nuc900.c spi: nuc900: remove redundant return value check of platform_get_resource() 2013-12-20 12:34:44 +00:00
spi-oc-tiny.c spi: oc-tiny: Simplify tiny_spi_txrx_bufs implementation when irq is not used 2014-01-09 17:58:28 +00:00
spi-octeon.c spi: octeon: use devm_spi_register_master() 2013-09-26 11:42:34 +01:00
spi-omap-100k.c spi: omap-100k: remove pointless _remove function 2013-12-02 17:35:54 +00:00
spi-omap-uwire.c spi: spi-omap-uwire: replace platform_driver_probe to support deferred probing 2013-10-09 12:07:50 +01:00
spi-omap2-mcspi.c spi: omap2-mcspi: raw read and write endian fix 2013-11-24 14:06:45 +00:00
spi-orion.c spi: orion: Use devm_clk_get() 2013-12-09 17:31:38 +00:00
spi-pl022.c Merge remote-tracking branch 'spi/topic/pl022' into spi-next 2013-10-25 09:51:35 +01:00
spi-ppc4xx.c DeviceTree updates for 3.13. This is a bit larger pull request than 2013-11-12 16:52:17 +09:00
spi-pxa2xx-dma.c
…
spi-pxa2xx-pci.c spi: remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-03 18:03:26 +00:00
spi-pxa2xx-pxadma.c
…
spi-pxa2xx.c Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/qspi', 'spi/topic/s3c24xx', 'spi/topic/s3c64xx', 'spi/topic/sh', 'spi/topic/tegra114', 'spi/topic/tegra20-sflash', 'spi/topic/tegra20-slink', 'spi/topic/txx9' and 'spi/topic/xcomm' into spi-linus 2014-01-23 13:07:14 +00:00
spi-pxa2xx.h
…
spi-rspi.c Merge commit 'spi/fix/rcar' into spi-linus 2014-01-23 13:13:30 +00:00
spi-s3c24xx-fiq.S
…
spi-s3c24xx-fiq.h
…
spi-s3c24xx.c spi: s3c24xx: Remove reference to plat/fiq.h 2014-01-08 13:06:21 +00:00
spi-s3c64xx.c spi/s3c64xx: Split wait_for_xfer() into PIO and DMA versions 2014-02-04 12:49:10 +00:00
spi-sc18is602.c Merge commit 'spi/topic/sc18is602' into spi-linus 2014-01-23 13:14:15 +00:00
spi-sh-hspi.c Merge remote-tracking branches 'spi/topic/fsl-espi', 'spi/topic/gpio', 'spi/topic/hspi', 'spi/topic/mpc512x', 'spi/topic/msiof', 'spi/topic/nuc900', 'spi/topic/oc-tiny', 'spi/topic/omap', 'spi/topic/orion' and 'spi/topic/pci' into spi-linus 2014-01-23 13:07:09 +00:00
spi-sh-msiof.c Merge remote-tracking branches 'spi/topic/fsl-espi', 'spi/topic/gpio', 'spi/topic/hspi', 'spi/topic/mpc512x', 'spi/topic/msiof', 'spi/topic/nuc900', 'spi/topic/oc-tiny', 'spi/topic/omap', 'spi/topic/orion' and 'spi/topic/pci' into spi-linus 2014-01-23 13:07:09 +00:00
spi-sh-sci.c spi: bitbang: Let spi_bitbang_start() take a reference to master 2013-10-07 14:50:43 +01:00
spi-sh.c Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/qspi', 'spi/topic/s3c24xx', 'spi/topic/s3c64xx', 'spi/topic/sh', 'spi/topic/tegra114', 'spi/topic/tegra20-sflash', 'spi/topic/tegra20-slink', 'spi/topic/txx9' and 'spi/topic/xcomm' into spi-linus 2014-01-23 13:07:14 +00:00
spi-sirf.c spi: Remove duplicate code to set default bits_per_word setting 2014-01-17 15:54:22 +00:00
spi-tegra20-sflash.c spi: Updates for v3.14 2014-01-25 13:20:36 -08:00
spi-tegra20-slink.c spi: Updates for v3.14 2014-01-25 13:20:36 -08:00
spi-tegra114.c spi: Updates for v3.14 2014-01-25 13:20:36 -08:00
spi-ti-qspi.c Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/qspi', 'spi/topic/s3c24xx', 'spi/topic/s3c64xx', 'spi/topic/sh', 'spi/topic/tegra114', 'spi/topic/tegra20-sflash', 'spi/topic/tegra20-slink', 'spi/topic/txx9' and 'spi/topic/xcomm' into spi-linus 2014-01-23 13:07:14 +00:00
spi-ti-ssp.c spi: use dev_get_platdata() 2013-08-29 13:56:23 +01:00
spi-tle62x0.c Merge remote-tracking branch 'spi/topic/tel62x0' into spi-next 2013-09-01 13:49:14 +01:00
spi-topcliff-pch.c Merge remote-tracking branches 'spi/topic/fsl-espi', 'spi/topic/gpio', 'spi/topic/hspi', 'spi/topic/mpc512x', 'spi/topic/msiof', 'spi/topic/nuc900', 'spi/topic/oc-tiny', 'spi/topic/omap', 'spi/topic/orion' and 'spi/topic/pci' into spi-linus 2014-01-23 13:07:09 +00:00
spi-txx9.c Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/qspi', 'spi/topic/s3c24xx', 'spi/topic/s3c64xx', 'spi/topic/sh', 'spi/topic/tegra114', 'spi/topic/tegra20-sflash', 'spi/topic/tegra20-slink', 'spi/topic/txx9' and 'spi/topic/xcomm' into spi-linus 2014-01-23 13:07:14 +00:00
spi-xcomm.c spi: xcomm: Use devm_spi_register_master() 2013-12-04 12:52:30 +00:00
spi-xilinx.c tree-wide: use reinit_completion instead of INIT_COMPLETION 2013-11-15 09:32:21 +09:00
spi.c spi: Provide core support for full duplex devices 2014-02-04 20:31:33 +00:00
spidev.c spi: spidev: Fix checkpatch issue 2013-10-15 13:15:52 +01:00