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OpenCloudOS-Kernel
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OpenCloudOS-Kernel/drivers/spi
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Tomoya MORINAGA f3e03e2eb0 spi-topcliff-pch: Fix overrun issue 
We found that adding load, Rx data sometimes drops.(with DMA transfer mode)
The cause is that before starting Rx-DMA processing, Tx-DMA processing starts.
This causes FIFO overrun occurs.

This patch fixes the issue by modifying FIFO tx-threshold and DMA descriptor
size like below.

                      Current                   this patch
Rx-descriptor   4Byte+12Byte*341    -->    12Byte*340-4Byte-12Byte
Rx-threshold                   (Not modified)
Tx-descriptor   4Byte+12Byte*341    -->    16Byte-12Byte*340
Rx-threshold    12Byte              -->    2Byte

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
 		2011-10-04 10:10:50 -06:00
..
Kconfig spi/imx: use soc name in spi device type naming scheme 2011-07-14 13:47:02 -06:00
Makefile spi: remove obsolete spi-s3c24xx-gpio driver 2011-07-04 10:52:58 -06:00
spi-altera.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-ath79.c spi: Convert uses of struct resource * to resource_size(ptr) 2011-06-10 23:43:41 -06:00
spi-atmel.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-au1550.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-bfin-sport.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-bfin5xx.c spi/bfin_spi: uninline fat queue funcs 2011-06-17 08:35:58 -06:00
spi-bitbang-txrx.h spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-bitbang.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-butterfly.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-coldfire-qspi.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-davinci.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-dw-mid.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-dw-mmio.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-dw-pci.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-dw.c spi/dw: Add spi number into spi irq desc 2011-07-08 13:09:00 -06:00
spi-dw.h spi/dw: Add spi number into spi irq desc 2011-07-08 13:09:00 -06:00
spi-ep93xx.c Merge branch 'ep93xx-dma' into spi/next 2011-06-09 12:42:57 -06:00
spi-fsl-espi.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-fsl-lib.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-fsl-lib.h spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-fsl-spi.c spi: Fix WARN when removing spi-fsl-spi module 2011-09-23 17:28:29 -06:00
spi-gpio.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-imx.c spi/imx: Fix spi-imx when the hardware SPI chipselects are used 2011-09-15 15:54:38 -06:00
spi-lm70llp.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-mpc52xx-psc.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-mpc52xx.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-mpc512x-psc.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-nuc900.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-oc-tiny.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-omap-100k.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-omap-uwire.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-omap2-mcspi.c spi: Convert uses of struct resource * to resource_size(ptr) 2011-06-10 23:43:41 -06:00
spi-orion.c spi: Convert uses of struct resource * to resource_size(ptr) 2011-06-10 23:43:41 -06:00
spi-pl022.c spi/pl022: remove function cannot exit 2011-08-02 14:54:11 +01:00
spi-ppc4xx.c spi: Convert uses of struct resource * to resource_size(ptr) 2011-06-10 23:43:41 -06:00
spi-pxa2xx-pci.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-pxa2xx.c 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-fiq.h spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-s3c24xx.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-s3c64xx.c Merge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6 2011-07-22 14:52:44 -07:00
spi-sh-msiof.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-sh-sci.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-sh.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-stmp.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-tegra.c spi/tegra: Use engineering names in DT compatible property 2011-07-05 23:38:30 -06:00
spi-ti-ssp.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-tle62x0.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-topcliff-pch.c spi-topcliff-pch: Fix overrun issue 2011-10-04 10:10:50 -06:00
spi-txx9.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-xilinx.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spidev.c spi: reorganize drivers 2011-06-06 01:16:30 -06:00