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e91c659bbc
linux/drivers/spi
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Brian Niebuhr e91c659bbc spi: davinci: always start receive DMA 
In keeping with the full duplex nature of the SPI bus. Always
start receive DMA along with transmit DMA.

If there is no receive buffer provided with the transfer, use
a temporary buffer to receive the data to be thrown away.

[michael.williamson@criticallink.com: receive DMA size should
be same as transfer length to avoid hang-up when transfer length
is smaller than temporary rx buffer size (rx buffer not provided)]

Signed-off-by: Brian Niebuhr <bniebuhr@efjohnson.com>
Tested-By: Michael Williamson <michael.williamson@criticallink.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2010-11-18 18:38:34 +05:30
..
amba-pl022.c spi/pl022: fix dubious allocation staticize platform data 2010-10-12 21:37:37 -06:00
atmel_spi.c spi/atmel: typo in debug message 2010-10-15 21:56:00 -06:00
atmel_spi.h
au1550_spi.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
coldfire_qspi.c m68knommu: include sched.h in ColdFire/SPI driver 2010-08-18 12:44:31 +10:00
davinci_spi.c spi: davinci: always start receive DMA 2010-11-18 18:38:34 +05:30
dw_spi_mmio.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
dw_spi_pci.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
dw_spi.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
ep93xx_spi.c spi/ep93xx: implemented driver for Cirrus EP93xx SPI controller 2010-05-25 00:23:16 -06:00
Kconfig spi: add spi_tegra driver 2010-10-21 18:15:05 -07:00
Makefile spi: add spi_tegra driver 2010-10-21 18:15:05 -07:00
mpc52xx_psc_spi.c of/device: Replace struct of_device with struct platform_device 2010-08-06 09:25:50 -06:00
mpc52xx_spi.c of/device: Replace struct of_device with struct platform_device 2010-08-06 09:25:50 -06:00
mpc512x_psc_spi.c Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6 2010-08-14 11:54:09 -07:00
omap2_mcspi.c spi/omap2_mcspi: Verify TX reg is empty after TX only xfer with DMA 2010-10-20 10:43:24 -06:00
omap_spi_100k.c SPI100k: Fix 8-bit and RX-only transfers 2010-07-03 22:45:44 -06:00
omap_uwire.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
orion_spi.c spi/orion: Drop unnecessary null test 2010-09-29 17:31:29 +09:00
pxa2xx_spi.c [ARM] pxa: add namespace on ssp 2010-05-11 17:25:06 +02:00
spi_bfin5xx.c spi/bfin_spi: only request GPIO on first load 2010-10-22 01:26:46 -06:00
spi_bitbang_txrx.h spi/bitbang: add support for SPI_MASTER_NO_{TX, RX} modes 2010-07-03 22:45:44 -06:00
spi_bitbang.c spi/bitbang: reinitialize transfer parameters for every message 2010-07-03 22:59:18 -06:00
spi_butterfly.c spi/bitbang: add support for SPI_MASTER_NO_{TX, RX} modes 2010-07-03 22:45:44 -06:00
spi_fsl_espi.c spi/fsl_spi: add eSPI controller support 2010-10-12 21:38:12 -06:00
spi_fsl_lib.c spi/mpc8xxx: refactor the common code for SPI/eSPI controller 2010-10-12 21:38:12 -06:00
spi_fsl_lib.h spi/fsl_spi: Fix compile errors when building on ppc64 2010-10-14 08:30:12 -06:00
spi_fsl_spi.c spi/mpc8xxx: refactor the common code for SPI/eSPI controller 2010-10-12 21:38:12 -06:00
spi_gpio.c spi: spi-gpio.c tests SPI_MASTER_NO_RX bit twice, but not SPI_MASTER_NO_TX 2010-10-02 21:09:08 -06:00
spi_imx.c spi/imx: Support different fifo sizes 2010-10-11 16:12:22 +02:00
spi_lm70llp.c spi/bitbang: add support for SPI_MASTER_NO_{TX, RX} modes 2010-07-03 22:45:44 -06:00
spi_nuc900.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
spi_ppc4xx.c of/device: Replace struct of_device with struct platform_device 2010-08-06 09:25:50 -06:00
spi_s3c24xx_fiq.h spi_s3c24xx: add FIQ pseudo-DMA support 2009-12-17 08:57:01 -07:00
spi_s3c24xx_fiq.S spi_s3c24xx: add FIQ pseudo-DMA support 2009-12-17 08:57:01 -07:00
spi_s3c24xx_gpio.c spi/bitbang: add support for SPI_MASTER_NO_{TX, RX} modes 2010-07-03 22:45:44 -06:00
spi_s3c24xx.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
spi_s3c64xx.c spi/s3c64xx: Correction for 16,32 bits bus width 2010-09-29 17:31:33 +09:00
spi_sh_msiof.c Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6 2010-02-25 15:38:03 -08:00
spi_sh_sci.c spi/bitbang: add support for SPI_MASTER_NO_{TX, RX} modes 2010-07-03 22:45:44 -06:00
spi_stmp.c spi: Fix reversed args to time_before() in Freescale stmp driver. 2010-01-20 13:49:44 -07:00
spi_tegra.c spi: tegra: fix error setting on timeout 2010-10-25 16:57:46 -07:00
spi_topcliff_pch.c spi/topcliff: Fix uninitialized variable defect 2010-10-13 23:03:15 -06:00
spi_txx9.c Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6 2009-12-17 15:59:05 -08:00
spi.c spi: fixed odd static string conventions in core code 2010-10-22 09:51:05 -06:00
spidev.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
tle62x0.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
xilinx_spi_of.c of/device: Replace struct of_device with struct platform_device 2010-08-06 09:25:50 -06:00
xilinx_spi_pltfm.c xilinx_spi: add a platform driver using the xilinx_spi common module. 2009-12-08 18:48:14 -07:00
xilinx_spi.c of/spi: call of_register_spi_devices() from spi core code 2010-07-30 00:03:59 -06:00
xilinx_spi.h xilinx_spi: Split into of driver and generic part. 2009-12-08 18:48:14 -07:00