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32310aaf5c
linux/drivers/spi
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Murali Karicheri 32310aaf5c spi/davinci: use request_threaded_irq() to fix deadlock 
With RT pre-empt patch applied to Linux kernel, the irq handler will be
force converted to an irq thread. spi driver can get back to back messages
from the slave device. In such cases, IRQ thread doesn't get a chance to
run to read the slave data. Hence the irq handler must be run in hard irq
context to read/write data from slave device. Otherwise, the kernel goes
into a deadlock. This patch fixes this issue when PREEMPT_RT_FULL is
enabled in the kernel. A dummy thread function is provided to satisfy the
request_threaded_irq() API. Passing a NULL for function also causes the
irq handler to be executed in the thread context.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-02-05 17:12:26 +00:00
..
Kconfig spi/pxa2xx: allow building on a 64-bit kernel 2013-01-26 15:21:36 +08:00
Makefile spi/stmp: remove obsolete driver 2012-12-06 14:02:53 +00:00
spi-altera.c spi: remove check for bits_per_word on transfer from low level driver 2013-02-05 12:26:59 +00:00
spi-ath79.c spi/ath79: avoid multiple initialization of the SPI controller 2013-02-05 12:59:47 +00:00
spi-atmel.c spi: Remove erroneous __init, __exit and __exit_p() references in drivers 2013-02-05 14:43:16 +00:00
spi-au1550.c spi: Remove erroneous __init, __exit and __exit_p() references in drivers 2013-02-05 14:43:16 +00:00
spi-bcm63xx.c spi/bcm63xx: reject transfers unable to transfer 2013-02-05 14:44:13 +00:00
spi-bfin5xx.c spi: Remove erroneous __init, __exit and __exit_p() references in drivers 2013-02-05 14:43:16 +00:00
spi-bfin-sport.c spi: remove check for bits_per_word on transfer from low level driver 2013-02-05 12:26:59 +00:00
spi-bitbang-txrx.h spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-bitbang.c Merge branch 'broonie/spi-next' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc.git 2013-02-05 12:30:13 +00:00
spi-butterfly.c spi: Add module.h to implicit users in drivers/spi 2011-10-31 19:32:17 -04:00
spi-clps711x.c spi: remove check for bits_per_word on transfer from low level driver 2013-02-05 12:26:59 +00:00
spi-coldfire-qspi.c spi: remove check for bits_per_word on transfer from low level driver 2013-02-05 12:26:59 +00:00
spi-davinci.c spi/davinci: use request_threaded_irq() to fix deadlock 2013-02-05 17:12:26 +00:00
spi-dw-mid.c dmaengine/dma_slave: introduce inline wrappers 2012-03-21 19:20:22 +05:30
spi-dw-mmio.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-dw-pci.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-dw.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-dw.h spi: spi-dw: fix all sparse warnings 2011-09-21 09:41:48 -06:00
spi-ep93xx.c spi: remove check for bits_per_word on transfer from low level driver 2013-02-05 12:26:59 +00:00
spi-falcon.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-fsl-espi.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-fsl-lib.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-fsl-lib.h spi: reorganize drivers 2011-06-06 01:16:30 -06:00
spi-fsl-spi.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-gpio.c spi: spi-gpio: Add checks for the dt properties 2013-01-26 15:35:56 +08:00
spi-imx.c spi/imx: Add MODULE_ALIAS() 2013-02-05 13:17:12 +00:00
spi-lm70llp.c spi: By default setup spi_masters with 1 chipselect and dynamics bus number 2012-05-19 23:42:08 -06:00
spi-mpc52xx-psc.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-mpc52xx.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-mpc512x-psc.c spi/spi-mpc512x-psc: init mode bits supported by the driver 2013-02-05 14:44:12 +00:00
spi-mxs.c mxs/spi: clear XFER_COUNT in ctrl0 field in DMA descriptor 2013-02-05 12:45:24 +00:00
spi-nuc900.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-oc-tiny.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-octeon.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-omap2-mcspi.c Merge branch 'broonie/spi-next' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc.git 2013-02-05 12:30:13 +00:00
spi-omap-100k.c spi: Remove erroneous __init, __exit and __exit_p() references in drivers 2013-02-05 14:43:16 +00:00
spi-omap-uwire.c spi: Remove erroneous __init, __exit and __exit_p() references in drivers 2013-02-05 14:43:16 +00:00
spi-orion.c spi/orion: Use module_platform_driver() 2013-02-05 14:44:14 +00:00
spi-pl022.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-ppc4xx.c spi: Remove erroneous __init, __exit and __exit_p() references in drivers 2013-02-05 14:43:16 +00:00
spi-pxa2xx-pci.c spi/pxa2xx: embed the ssp_device to platform data 2013-01-08 11:00:32 +00:00
spi-pxa2xx.c spi/pxa2xx: convert to the common clk framework 2013-01-26 15:21:37 +08:00
spi-rspi.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
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: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-s3c64xx.c spi: Remove erroneous __init, __exit and __exit_p() references in drivers 2013-02-05 14:43:16 +00:00
spi-sc18is602.c spi/sc18is602: Return -EINVAL for probe failures due to I2C function mismatch 2012-08-23 12:13:54 +01:00
spi-sh-hspi.c spi/sh-hspi: fix return value check in hspi_probe(). 2012-12-19 15:11:41 +00:00
spi-sh-msiof.c spi/sh-msiof: Add device tree parsing to driver 2013-02-05 12:26:58 +00:00
spi-sh-sci.c spi: Add module.h to implicit users in drivers/spi 2011-10-31 19:32:17 -04:00
spi-sh.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-sirf.c spi/sirf: add support for new SiRFmarco SMP SoC 2013-02-05 12:43:18 +00:00
spi-tegra20-sflash.c spi/tegra: remove checks for valid speed 2013-02-05 13:11:53 +00:00
spi-tegra20-slink.c spi/tegra: remove checks for valid speed 2013-02-05 13:11:53 +00:00
spi-ti-ssp.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-tle62x0.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-topcliff-pch.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-txx9.c spi: Remove erroneous __init, __exit and __exit_p() references in drivers 2013-02-05 14:43:16 +00:00
spi-xcomm.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-xilinx.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi.c spi: Ensure memory used for spi_write_then_read() is DMA safe 2013-02-05 14:44:13 +00:00
spidev.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00