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linux/drivers/spi
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Vignesh R 57c2ecd9bf spi: spi-ti-qspi: switch to polling mode for better r/w performance 
Currently word completion interrupt is fired for transfer of every
word(8bit to 128bit in size). This adds a lot of overhead, and decreases
r/w throughput. It hardly takes 3us(@48MHz) for 128bit r/w to complete,
hence its better to poll on word complete bit to be set in
QSPI_SPI_STATUS_REG instead of using interrupts.
This increases the throughput by 30% in both read and write case.

So, switch to polling mode instead of interrupts to determine completion
of word transfer.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-10-16 19:08:06 +01:00
..
Kconfig
Merge remote-tracking branches 'spi/topic/ti-qspi', 'spi/topic/xcomm' and 'spi/topic/xlp' into spi-next
2015-08-31 14:45:45 +01:00
Makefile
Merge remote-tracking branches 'spi/topic/ti-qspi', 'spi/topic/xcomm' and 'spi/topic/xlp' into spi-next
2015-08-31 14:45:45 +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: spi-ath79: Set the initial state of CS0
2015-04-27 15:44:57 +01:00
spi-atmel.c
spi: atmel: remove useless include
2015-08-10 19:07:04 +01:00
spi-au1550.c
spi: Remove FSF mailing addresses
2014-12-22 15:32:42 +00:00
spi-bcm53xx.c
Merge remote-tracking branches 'spi/topic/atmel', 'spi/topic/bcm2385', 'spi/topic/bcm2835', 'spi/topic/bcm53xx' and 'spi/topic/bitbang' into spi-next
2015-04-11 23:09:03 +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
spi: Remove FSF mailing addresses
2014-12-22 15:32:42 +00:00
spi-bcm2835.c
spi: bcm2835: set up spi-mode before asserting cs-gpio
2015-08-14 19:09:09 +01:00
spi-bfin5xx.c
spi: spi-bfin5xx: Initialize cr_width in bfin_spi_pump_transfers()
2015-04-01 21:28:56 +01:00
spi-bfin-sport.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
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: Make setup_transfer() callback optional
2015-04-18 12:01:03 +01:00
spi-butterfly.c
spi: Remove FSF mailing addresses
2014-12-22 15:32:42 +00:00
spi-cadence.c
Merge remote-tracking branches 'spi/topic/atmel', 'spi/topic/cadence', 'spi/topic/dw' and 'spi/topic/fsl-cpm' into spi-next
2014-12-08 12:17:12 +00:00
spi-clps711x.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-coldfire-qspi.c
spi: Remove FSF mailing addresses
2014-12-22 15:32:42 +00:00
spi-davinci.c
spi: davinci: Choose correct pre-scaler limit based on SOC
2015-07-24 17:35:51 +01:00
spi-dln2.c
spi/dln2: simplify return flow for dln2_spi_transfer_setup and dln2_spi_enable
2015-01-06 17:02:50 +00:00
spi-dw-mid.c
spi: dw-spi: Convert 16bit accesses to 32bit accesses
2015-03-17 12:27:09 +00:00
spi-dw-mmio.c
spi: dw: Allow interface drivers to limit data I/O to word sizes
2015-08-21 10:25:28 -07:00
spi-dw-pci.c
spi: dw-pci: correct number of chip selects
2015-02-24 16:59:32 +09:00
spi-dw.c
spi: dw: Allow interface drivers to limit data I/O to word sizes
2015-08-21 10:25:28 -07:00
spi-dw.h
spi: dw: Allow interface drivers to limit data I/O to word sizes
2015-08-21 10:25:28 -07:00
spi-efm32.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-ep93xx.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
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
spi: fsl-spi: fix devm_ioremap_resource() error case
2015-04-24 13:27:53 +01:00
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
spi: fsl-dspi: Use pinctrl PM helpers
2015-06-12 18:28:13 +01:00
spi-fsl-espi.c
spi: fsl-(e)spi: Fix checking return value of devm_ioremap_resource
2015-08-30 12:14:36 +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 small DMA transfers
2015-07-24 16:08:55 +01:00
spi-lm70llp.c
spi: Remove FSF mailing addresses
2014-12-22 15:32:42 +00:00
spi-meson-spifc.c
spi: meson: Constify struct regmap_config
2015-01-05 20:11:32 +00:00
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-psc: fix compiler warning about uninitialized variable
2015-07-21 11:24:42 +01:00
spi-mt65xx.c
spi: mediatek: fix SPI_CMD_PAUSE_IE macro error
2015-08-27 20:31:00 +01:00
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: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-octeon.c
spi: constify of_device_id array
2015-03-17 12:15:22 +00:00
spi-omap2-mcspi.c
spi: omap2-mcspi: add runtime PM to set_cs()
2015-07-24 17:40:40 +01:00
spi-omap-100k.c
spi/omap100k: Convert to runtime PM
2015-03-17 12:25:48 +00:00
spi-omap-uwire.c
spi: omap-uwire: Remove needless include asm/irq.h
2015-03-23 09:43:37 -07:00
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-pl022.c
Merge remote-tracking branches 'spi/topic/omap-100k', 'spi/topic/omap-uwire', 'spi/topic/pl022', 'spi/topic/pm' and 'spi/topic/pxa2xx' into spi-next
2015-04-11 23:09:18 +01:00
spi-ppc4xx.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-pxa2xx-dma.c
spi: pxa2xx: Cleanup register access macros
2014-12-22 20:17:23 +00:00
spi-pxa2xx-pci.c
spi: spi-pxa2xx: Remove clk.h include
2015-07-15 12:35:02 +01:00
spi-pxa2xx.c
spi: spi-pxa2xx: Remove unused legacy null dma buffer and allocation for it
2015-08-05 10:27:27 +01:00
spi-pxa2xx.h
spi: spi-pxa2xx: Remove unused legacy null dma buffer and allocation for it
2015-08-05 10:27:27 +01:00
spi-qup.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-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: remove unnecessary memset of rockchip_spi
2015-07-07 13:12:50 +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-s3c24xx-fiq.S
…
spi-s3c24xx.c
spi/s3c24xx: remove unnecessary memset of s3c24xx_spi
2015-07-07 13:11:27 +01:00
spi-s3c64xx.c
spi: s3c64xx: print fifo size on probe.
2015-07-28 15:50:01 +01:00
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: constify of_device_id array
2015-03-17 12:15:22 +00:00
spi-sun4i.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-sun6i.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
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-ti-qspi.c
spi: spi-ti-qspi: switch to polling mode for better r/w performance
2015-10-16 19:08:06 +01:00
spi-tle62x0.c
spi: tle62x0: remove unnecessary OOM messages
2014-04-29 12:01:42 -07:00
spi-topcliff-pch.c
spi: Remove FSF mailing addresses
2014-12-22 15:32:42 +00:00
spi-txx9.c
Driver core patches for 3.19-rc1
2014-12-14 16:10:09 -08:00
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 spurious IRQ ACK on irq mode
2015-08-14 16:35:19 +01:00
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: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-zynqmp-gqspi.c
spi: zynq: missing break statement
2015-07-07 19:47:50 +01:00
spi.c
Merge remote-tracking branches 'spi/topic/s3c64xx', 'spi/topic/sg', 'spi/topic/sh-msiof', 'spi/topic/spidev' and 'spi/topic/stats' into spi-next
2015-08-31 14:45:41 +01:00
spidev.c
Merge remote-tracking branches 'spi/topic/s3c64xx', 'spi/topic/sg', 'spi/topic/sh-msiof', 'spi/topic/spidev' and 'spi/topic/stats' into spi-next
2015-08-31 14:45:41 +01:00