iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
6b3a631e7f
linux/drivers/spi
History
Frode Isaksen 6b3a631e7f spi: davinci: use rx buffer as dummy tx buffer 
When doing rx-only transfer, the transfer will fail
if the number of SG entries exceeds 20.
This happens because the eDMA DMA engine is limited
to 20 SG entries in one transaction, and when the
DMA transcation is resumed (which takes > 150us),
rx errors occurs because the slave is still transmitting.
Fix this by using the rx buffer as the dummy tx buffer,
so that resuming the rx transcation happens at the same
time as resuming the tx transcation.

Signed-off-by: Frode Isaksen <fisaksen@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-03-15 19:35:39 +00:00
..
Kconfig Merge remote-tracking branches 'spi/topic/imx', 'spi/topic/lantiq-ssc', 'spi/topic/mpc52xx', 'spi/topic/ppc4xx' and 'spi/topic/pxa2xx' into spi-next 2017-02-19 16:41:01 +00:00
Makefile spi: lantiq-ssc: add support for Lantiq SSC SPI controller 2017-02-14 17:10:40 +00:00
spi-adi-v3.c
spi-altera.c
spi-armada-3700.c Merge remote-tracking branches 'spi/topic/armada', 'spi/topic/ath79', 'spi/topic/bcm-qspi' and 'spi/topic/bcm53xx' into spi-next 2017-02-19 16:40:55 +00:00
spi-ath79.c spi: spi-ath79: use gpio_set_value_cansleep for GPIO chip select 2016-12-14 17:36:57 +00:00
spi-atmel.c Merge remote-tracking branches 'spi/topic/armada', 'spi/topic/ath79', 'spi/topic/atmel' and 'spi/topic/axi' into spi-next 2016-12-12 15:54:05 +00:00
spi-au1550.c spi: au1550: Simplify au1550_spi_setupxfer() 2015-09-16 20:54:54 +01:00
spi-axi-spi-engine.c spi: spi-axi: Free resources on error path 2017-01-09 11:20:46 +00:00
spi-bcm53xx.c spi: bcm53xx: (re)license code to the GPL v2 2017-01-06 18:21:50 +00:00
spi-bcm53xx.h
spi-bcm63xx-hsspi.c
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-bcm-qspi.c spi: Updates for v4.11 2017-02-20 17:26:11 -08:00
spi-bcm-qspi.h spi: iproc-qspi: Add Broadcom iProc SoCs support 2016-09-24 20:03:25 +01:00
spi-bfin5xx.c spi: spi-bfin5xx: Remove deprecated create_singlethread_workqueue 2016-07-03 14:14:31 +02:00
spi-bfin-sport.c spi: spi-bfin-sport: Remove deprecated create_singlethread_workqueue 2016-07-03 14:24:31 +02:00
spi-bitbang-txrx.h
spi-bitbang.c spi: bitbang: switch to the generic implementation of transfer_one_message 2015-10-05 14:55:56 +01:00
spi-brcmstb-qspi.c spi: brcmstb-qspi: Broadcom settop platform driver 2016-09-14 18:03:32 +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-cavium-octeon.c spi: octeon: Split driver into Octeon specific and common parts 2016-07-24 21:54:29 +01:00
spi-cavium-thunderx.c spi: spi-cavium-thunderx: Add missing clk_disable_unprepare() 2016-08-24 12:37:43 +01:00
spi-cavium.c spi: octeon: Split driver into Octeon specific and common parts 2016-07-24 21:54:29 +01:00
spi-cavium.h spi: octeon: Add ThunderX driver 2016-08-19 16:24:39 +01:00
spi-clps711x.c spi: clps711x: Driver refactor 2016-07-07 11:44:43 +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 rx buffer as dummy tx buffer 2017-03-15 19:35:39 +00:00
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 (part 2) 2017-01-04 12:27:00 +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: Make debugfs use bus num and make irq name unique 2017-01-09 11:22:14 +00:00
spi-dw.h spi: dw: Make debugfs use bus num and make irq name unique 2017-01-09 11:22:14 +00:00
spi-efm32.c
spi-ep93xx.c spi: spi-ep93xx: simplify GPIO chip selects 2017-02-16 20:10:26 +00:00
spi-falcon.c
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-fsl-dspi.c Merge remote-tracking branches 'spi/topic/delay', 'spi/topic/dw', 'spi/topic/fsl-dspi' and 'spi/topic/fsl-espi' into spi-next 2016-12-12 15:54:09 +00:00
spi-fsl-espi.c spi: fsl-espi: fix ioread16/iowrite16 endianness 2016-12-01 18:50:59 +00:00
spi-fsl-lib.c
spi-fsl-lib.h spi: fsl-espi: separate fsl-espi from fsl-lib completely 2016-11-14 11:21:48 +00:00
spi-fsl-lpspi.c spi: fsl-lpspi: fix indentation error 2017-01-09 19:34:02 +00:00
spi-fsl-spi.c spi: fsl: Combine substrings for two messages 2017-01-17 18:27:38 +00:00
spi-fsl-spi.h
spi-gpio.c
spi-img-spfi.c spi: img-spfi: Remove spi_master_put in img_spfi_remove() 2016-07-27 19:00:16 +01:00
spi-imx.c spi: imx: adjust watermark level according to transfer length 2017-01-06 18:09:22 +00:00
spi-iproc-qspi.c spi: iproc-qspi: Add Broadcom iProc SoCs support 2016-09-24 20:03:25 +01:00
spi-jcore.c spi: jcore: Fix module autoload for OF registration 2016-11-23 16:42:20 +00:00
spi-lantiq-ssc.c spi: lantiq-ssc: add support for Lantiq SSC SPI controller 2017-02-14 17:10:40 +00:00
spi-lm70llp.c spi: lm70llp: remove printk 2015-12-07 20:09:09 +00:00
spi-loopback-test.c spi: loopback-test: mark rx_ranges_cmp() static 2016-09-01 20:54:54 +01:00
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: Add GXBB compatible 2016-09-12 20:11:39 +01:00
spi-mpc52xx-psc.c spi: spi-mpc52xx-psc: Remove deprecated create_singlethread_workqueue 2016-07-03 14:23:25 +02:00
spi-mpc52xx.c spi/mpc52xx: Combine substrings for two messages 2017-01-17 18:28:19 +00:00
spi-mpc512x-psc.c spi: mpc512x: Call mpc512x_psc_spi_transfer_setup() unconditionally 2015-09-17 12:33:31 +01:00
spi-mt65xx.c spi: mediatek: Only do dma for 4-byte aligned buffers 2017-01-31 19:55:38 +00:00
spi-mxs.c
spi-nuc900.c
spi-oc-tiny.c
spi-omap2-mcspi.c spi: omap2-mcspi: Remove redundant return value check of platform_get_resource() 2016-10-24 16:08:30 +01:00
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: mvebu: fix baudrate calculation for armada variant 2016-12-08 17:54:51 +00:00
spi-pic32-sqi.c spi: pic32-sqi: use list_move_tail and list_move 2016-08-08 11:56:40 +01:00
spi-pic32.c spi: pic32: fixup wait_for_completion_timeout return handling 2016-07-24 21:49:16 +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/ppc4xx: Use kcalloc() in spi_ppc4xx_of_probe() 2017-01-17 18:34:25 +00:00
spi-pxa2xx-dma.c spi: pxa2xx: Remove pointer to chip data from driver data 2016-09-12 20:01:27 +01:00
spi-pxa2xx-pci.c spi: pca2xx-pci: Allow MSI 2017-01-23 18:09:37 +00:00
spi-pxa2xx.c Merge remote-tracking branches 'spi/topic/imx', 'spi/topic/lantiq-ssc', 'spi/topic/mpc52xx', 'spi/topic/ppc4xx' and 'spi/topic/pxa2xx' into spi-next 2017-02-19 16:41:01 +00:00
spi-pxa2xx.h spi: spi-pxa2xx: Remove unused macro 2016-11-14 13:52:04 +00:00
spi-qup.c Merge remote-tracking branches 'spi/topic/octeon', 'spi/topic/pic32-sqi', 'spi/topic/pxa2xx' and 'spi/topic/qup' into spi-next 2016-09-30 09:14:14 -07:00
spi-rb4xx.c
spi-rockchip.c spi: rockchip: support "sleep" pin configuration 2016-12-19 13:29:27 +00:00
spi-rspi.c Merge remote-tracking branches 'spi/topic/rockchip', 'spi/topic/rspi', 'spi/topic/s3c64xx', 'spi/topic/sh-msiof' and 'spi/topic/slave' into spi-next 2017-02-19 16:41:05 +00:00
spi-s3c24xx-fiq.h
spi-s3c24xx-fiq.S
spi-s3c24xx.c spi: bitbang: Replace spinlock by mutex 2015-09-17 12:13:40 +01:00
spi-s3c64xx.c Merge remote-tracking branches 'spi/topic/rockchip', 'spi/topic/rspi', 'spi/topic/s3c64xx', 'spi/topic/sh-msiof' and 'spi/topic/slave' into spi-next 2017-02-19 16:41:05 +00:00
spi-sc18is602.c spi: sc18is602: Change gpiod_set_value to gpiod_set_value_cansleep 2016-09-29 11:01:36 -07:00
spi-sh-hspi.c
spi-sh-msiof.c spi: sh-msiof: Remove useless memory allocation failure message 2017-01-04 17:39:37 +00:00
spi-sh-sci.c
spi-sh.c spi: spi-sh: Remove deprecated create_singlethread_workqueue 2016-07-11 19:32:38 +01:00
spi-sirf.c
spi-st-ssc4.c spi: st-ssc4: Fix misuse of devm_gpio_request/devm_gpio_free APIs 2016-09-14 16:05:35 +01:00
spi-sun4i.c spi: sun4i: Allow transfers larger than FIFO size 2016-10-29 12:11:30 -06:00
spi-sun6i.c spi: sun6i: Support Allwinner H3 SPI controller 2016-11-02 14:59:09 -06:00
spi-tegra20-sflash.c
spi-tegra20-slink.c
spi-tegra114.c
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: Fix error handling 2017-02-19 16:27:35 +00:00
spi-tle62x0.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
spi-topcliff-pch.c spi/topcliff-pch: Delete an error message for a failed memory allocation in pch_spi_set_tx() 2017-01-17 18:38:02 +00:00
spi-txx9.c spi: spi-txx9: Add missing clock (un)prepare calls for CCF 2016-08-18 19:10:39 +01:00
spi-xcomm.c
spi-xilinx.c spi: xilinx: Return IRQ_NONE if no interrupts were detected 2016-07-15 11:45:00 +01:00
spi-xlp.c spi: xlp: Fix module autoload for OF registration 2016-11-23 16:42:32 +00:00
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 sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h> 2017-03-02 08:42:27 +01:00
spidev.c spi: spidev: Add device to spidev device tree compatibility list 2016-10-21 12:09:57 +01:00