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linux/drivers/spi
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Franklin S Cooper Jr 4bd00413cd spi: omap2-mcspi: Add comments for RX only DMA buffer workaround 
OMAP35x and OMAP37x mentions in the McSPI End-of-Transfer Sequences section
that if the McSPI is configured as a Master and only DMA RX is being
performed then the DMA transfer size needs to be reduced by 1 or 2.

This was originally implemented by:
commit 57c5c28dbc83 ("spi: omap2_mcspi rxdma bugfix")

This patch adds comments to clarify what is going on in the code since its
not obvious what problem its addressing.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-05 16:48:25 +02:00
..
Kconfig
Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/qup', 'spi/topic/rockchip', 'spi/topic/st-ssc4' and 'spi/topic/xlp' into spi-next
2016-05-23 12:16:55 +01:00
Makefile
spi: pic32-sqi: add SPI driver for PIC32 SQI controller.
2016-04-18 17:52:46 +01:00
spi-adi-v3.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-altera.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-ath79.c
spi: ath79: simplify iomem resource mapping
2015-09-30 20:33:29 +01:00
spi-atmel.c
spi: atmel: fix gpio chip-select in case of non-DT platform
2016-01-28 23:25:54 +01:00
spi-au1550.c
spi: au1550: Simplify au1550_spi_setupxfer()
2015-09-16 20:54:54 +01:00
spi-axi-spi-engine.c
spi: Drop duplicate code to set master->dev.parent
2016-04-26 11:56:09 +01:00
spi-bcm53xx.c
spi: bcm53xx: add spi_flash_read callback for MMIO-based reads
2016-04-18 13:53:46 +01:00
spi-bcm53xx.h
spi: bcm53xx: driver for SPI controller on Broadcom bcma SoC
2014-08-19 11:30:55 -05:00
spi-bcm63xx-hsspi.c
spi/bcm63xx-hsspi: add support for dual spi read/write
2015-08-25 17:33:49 +01:00
spi-bcm63xx.c
Merge remote-tracking branches 'spi/topic/bcm63xx', 'spi/topic/butterfly', 'spi/topic/cadence' and 'spi/topic/davinci' into spi-next
2016-01-11 16:48:30 +00:00
spi-bcm2835.c
spi: bcm2835: Remove unnecessary workaround to call gpio_set_value
2016-02-15 20:43:39 +00:00
spi-bcm2835aux.c
Merge remote-tracking branches 'spi/topic/acpi', 'spi/topic/axi-engine', 'spi/topic/bcm2835' and 'spi/topic/bcm2835aux' into spi-next
2016-03-11 14:28:25 +07:00
spi-bfin5xx.c
spi: spi-bfin5xx: Calculate transfer speed unconditionally
2015-09-16 20:54:32 +01:00
spi-bfin-sport.c
spi: bfin-sport: Calculate transfer speed unconditionally
2015-09-16 20:53:45 +01:00
spi-bitbang-txrx.h
spi: Fix regression in spi-bitbang-txrx.h
2015-07-29 15:01:07 +01:00
spi-bitbang.c
spi: bitbang: switch to the generic implementation of transfer_one_message
2015-10-05 14:55:56 +01:00
spi-butterfly.c
spi: butterfly: use new parport device model
2015-12-02 19:38:16 +00:00
spi-cadence.c
spi: cadence: mark pm functions __maybe_unused
2016-04-18 10:58:49 +01:00
spi-clps711x.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-coldfire-qspi.c
spi: spi-coldfire-qspi: enable RuntimePM before registering to the core
2015-10-12 17:02:08 +01:00
spi-davinci.c
spi: davinci: Use dma_request_chan() for requesting DMA channel
2016-04-29 18:15:15 +01:00
spi-dln2.c
spi: Drop duplicate code to set master->dev.parent
2016-04-26 11:56:09 +01:00
spi-dw-mid.c
spi: dw-mid: switch to new dmaengine_terminate_* API
2016-02-05 17:41:49 +00:00
spi-dw-mmio.c
spi: dw-mmio: remove message which is handled by core
2016-02-05 17:41:49 +00:00
spi-dw-pci.c
spi: dw-pci: Spelling s/paltforms/platforms/g
2016-05-11 18:26:19 +01:00
spi-dw.c
spi: dw: Use SPI_TMOD_TR rather than magic const 0 to set tmode
2015-12-23 12:12:09 +00:00
spi-dw.h
spi: dw-mid: constify dw_spi_dma_ops structure
2015-11-30 11:34:50 +00:00
spi-efm32.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-ep93xx.c
spi: spi-ep93xx: Fix the PTR_ERR() argument
2016-05-24 16:54:50 +01:00
spi-falcon.c
Merge remote-tracking branches 'spi/topic/falcon', 'spi/topic/fsf', 'spi/topic/fsl', 'spi/topic/fsl-dspi' and 'spi/topic/gpio' into spi-next
2015-02-08 11:16:46 +08:00
spi-fsl-cpm.c
QE: Move QE from arch/powerpc to drivers/soc
2015-12-22 17:12:56 -06:00
spi-fsl-cpm.h
spi/spi-fsl-spi: Make driver usable in CPU mode outside of an FSL_SOC environment
2013-04-07 10:07:54 +01:00
spi-fsl-dspi.c
Merge remote-tracking branches 'spi/topic/dw', 'spi/topic/flash-read', 'spi/topic/fsl-dspi', 'spi/topic/fsl-espi' and 'spi/topic/kconfig' into spi-next
2016-05-23 12:16:48 +01:00
spi-fsl-espi.c
spi/fsl-espi: avoid infinite loops on fsl_espi_cpu_irq()
2016-03-28 19:41:18 +01:00
spi-fsl-lib.c
spi: fsl-(e)spi: simplify cleanup code
2015-08-28 18:15:18 +01:00
spi-fsl-lib.h
spi: fsl-(e)spi: simplify cleanup code
2015-08-28 18:15:18 +01:00
spi-fsl-spi.c
spi: fsl-(e)spi: Fix checking return value of devm_ioremap_resource
2015-08-30 12:14:36 +01:00
spi-fsl-spi.h
spi/spi-fsl-spi: Add support for Aeroflex Gaisler GRLIB cores normally running on SPARC
2013-04-07 10:07:56 +01:00
spi-gpio.c
Merge remote-tracking branches 'spi/topic/falcon', 'spi/topic/fsf', 'spi/topic/fsl', 'spi/topic/fsl-dspi' and 'spi/topic/gpio' into spi-next
2015-02-08 11:16:46 +08:00
spi-img-spfi.c
Merge remote-tracking branches 'spi/topic/dw', 'spi/topic/fsl-espi', 'spi/topic/img-spfi' and 'spi/topic/mpc512x-psc' into spi-next
2015-08-31 14:45:32 +01:00
spi-imx.c
spi: imx: Fix possible NULL pointer deref
2016-03-17 11:44:34 +00:00
spi-lm70llp.c
spi: lm70llp: remove printk
2015-12-07 20:09:09 +00:00
spi-loopback-test.c
spi: fix counting in spi-loopback-test code
2016-01-15 18:13:53 +00:00
spi-lp8841-rtc.c
spi: lp-8841: return correct error code from probe
2016-02-26 11:06:38 +09:00
spi-meson-spifc.c
spi: meson: Fix module autoload for OF platform driver
2015-09-19 07:55:25 -07:00
spi-mpc52xx-psc.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-mpc52xx.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-mpc512x-psc.c
spi: mpc512x: Call mpc512x_psc_spi_transfer_setup() unconditionally
2015-09-17 12:33:31 +01:00
spi-mt65xx.c
Merge remote-tracking branches 'spi/topic/lm70llp', 'spi/topic/loopback', 'spi/topic/mtk' and 'spi/topic/omap2-mcspi' into spi-next
2016-01-11 16:48:33 +00:00
spi-mxs.c
spi: mxs: cleanup wait_for_completion return handling
2015-02-05 18:04:57 +00:00
spi-nuc900.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-oc-tiny.c
spi: oc-tiny: Use of_property_read_u32 instead of open-coding it
2015-09-16 19:16:01 +01:00
spi-octeon.c
spi: octeon: Convert to use devm_ioremap_resource
2016-03-21 13:40:16 +00:00
spi-omap2-mcspi.c
spi: omap2-mcspi: Add comments for RX only DMA buffer workaround
2016-07-05 16:48:25 +02:00
spi-omap-100k.c
spi: omap-100k: Rely on validations done by spi core
2015-09-17 12:34:20 +01:00
spi-omap-uwire.c
spi: omap-uwire: Remove needless bits_per_word and speed_hz tests
2015-09-17 12:33:58 +01:00
spi-orion.c
spi: orion: On a38x, implement "50MHZ SPI AC timing" Erratum No. FE-9144572
2015-08-11 17:21:08 +01:00
spi-pic32-sqi.c
spi: pic32-sqi: Remove pic32_sqi_setup and pic32_sqi_cleanup
2016-05-06 18:18:27 +01:00
spi-pic32.c
spi: pic32: Fix checking return value of devm_ioremap_resource
2016-04-29 12:34:20 +01:00
spi-pl022.c
spi: pl022: Remove obsolete struct pl022 members from kerneldoc
2016-02-17 12:08:55 +00:00
spi-ppc4xx.c
spi: bitbang: Replace spinlock by mutex
2015-09-17 12:13:40 +01:00
spi-pxa2xx-dma.c
spi: pxa2xx: Use dummy buffers provided by SPI core
2016-03-28 10:42:00 +01:00
spi-pxa2xx-pci.c
spi: Updates for v4.7
2016-05-24 11:12:32 -07:00
spi-pxa2xx.c
Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/qup', 'spi/topic/rockchip', 'spi/topic/st-ssc4' and 'spi/topic/xlp' into spi-next
2016-05-23 12:16:55 +01:00
spi-pxa2xx.h
spi: pxa2xx: Use dummy buffers provided by SPI core
2016-03-28 10:42:00 +01:00
spi-qup.c
spi: qup: Add spi_master_put in remove function
2016-05-02 15:27:28 +01:00
spi-rb4xx.c
spi: rb4xx: Fix checking return value of devm_ioremap_resource()
2015-05-01 17:35:54 +01:00
spi-rockchip.c
spi: rockchip: potential NULL dereference on error
2016-05-04 14:41:56 +01:00
spi-rspi.c
spi: rspi: Make qspi_set_send_trigger() return "unsigned int"
2015-07-03 13:52:10 +01:00
spi-s3c24xx-fiq.h
spi: reorganize drivers
2011-06-06 01:16:30 -06:00
spi-s3c24xx-fiq.S
spi: reorganize drivers
2011-06-06 01:16:30 -06:00
spi-s3c24xx.c
spi: bitbang: Replace spinlock by mutex
2015-09-17 12:13:40 +01:00
spi-s3c64xx.c
spi: s3c64xx: Remove unused platform_device_id entries
2015-12-30 16:48:58 +00:00
spi-sc18is602.c
Merge remote-tracking branches 'spi/topic/qup', 'spi/topic/rockchip', 'spi/topic/rspi', 'spi/topic/s3c64xx' and 'spi/topic/sc18is602' into spi-next
2015-04-11 23:09:25 +01:00
spi-sh-hspi.c
spi: Remove FSF mailing addresses
2014-12-22 15:32:42 +00:00
spi-sh-msiof.c
spi: sh-msiof: Fix FIFO size to 64 word from 256 word
2015-08-31 14:42:40 +01:00
spi-sh-sci.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-sh.c
spi: Remove FSF mailing addresses
2014-12-22 15:32:42 +00:00
spi-sirf.c
spi: sirf: add the reset for USP-based SPI
2015-05-26 11:39:16 +01:00
spi-st-ssc4.c
spi: st-ssc4: Fix missing spi_master_put in spi_st_probe error paths
2016-04-29 18:16:25 +01:00
spi-sun4i.c
Merge remote-tracking branches 'spi/topic/sun4i', 'spi/topic/topcliff-pch' and 'spi/topic/zynq' into spi-next
2016-01-11 16:48:38 +00:00
spi-sun6i.c
spi: sun4i: allow transfers to set transmission speed
2015-11-18 18:34:56 +00:00
spi-tegra20-sflash.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-tegra20-slink.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-tegra114.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-test.h
spi: loopback: added additional non-power of 2 transfer lengthes
2015-12-13 20:10:15 +00:00
spi-ti-qspi.c
spi: spi-ti-qspi: Handle truncated frames properly
2016-04-13 08:12:41 +01:00
spi-tle62x0.c
spi: Drop owner assignment from spi_drivers
2015-10-28 10:30:17 +09:00
spi-topcliff-pch.c
spi: Remove FSF mailing addresses
2014-12-22 15:32:42 +00:00
spi-txx9.c
spi: txx9: Use transfer speed unconditionally
2015-09-16 20:52:52 +01:00
spi-xcomm.c
spi: xcomm: Export I2C module alias information
2015-07-31 18:14:57 +01:00
spi-xilinx.c
spi/spi-xilinx: Fix race condition on last word read
2015-10-29 09:03:42 +09:00
spi-xlp.c
spi/xlp: SPI controller driver for Netlogic XLP SoCs
2015-08-28 18:22:19 +01:00
spi-xtensa-xtfpga.c
spi: xtensa-xtfpga: fix register endianness
2015-09-22 09:30:10 -07:00
spi-zynqmp-gqspi.c
spi: zynqmp: disable clocks in error paths
2016-05-04 14:21:03 +01:00
spi.c
Merge remote-tracking branch 'spi/topic/core' into spi-next
2016-05-23 12:16:45 +01:00
spidev.c
Merge remote-tracking branches 'spi/topic/overlay', 'spi/topic/pxa2xx', 'spi/topic/s3c64xx', 'spi/topic/sh-msiof' and 'spi/topic/spidev' into spi-next
2016-01-11 16:48:35 +00:00