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linux/drivers/spi
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Mika Westerberg 269e4a4122 spi/pxa2xx: check status register as well to determine if the device is off 
The current interrupt handler calls pm_runtime_suspended() to check if the
device is suspended or not. However, runtime PM status of the device is
only set to suspended once all PM runtime suspend hooks have executed.

In case of Intel Lynxpoint we have the device bound to the ACPI power
domain and its runtime suspend hook will put the device to D3hot (or D3cold
if possible). This means that the device is powered off before its state is
set to runtime suspended. While in this state the device might get an
interrupt that is meant for another device (as the interrupt line is
shared), and because the device is powered off accessing its registers will
return 0xffffffff that the driver misinterprets as an invalid state.

When this happens user will see messages like below on the console:

  pxa2xx-spi INT33C0:00: bad message state in interrupt handler

Fix this by checking the status register for ~0 and returning IRQ_NONE in
that case.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-04 20:14:29 +01:00
..
Kconfig Merge remote-tracking branch 'spi/topic/sirf' into spi-next 2013-09-01 13:49:12 +01:00
Makefile Merge remote-tracking branch 'spi/topic/qspi' into spi-next 2013-09-01 13:49:06 +01:00
spi-altera.c Merge remote-tracking branch 'spi/topic/pdata' into spi-next 2013-09-01 13:49:03 +01:00
spi-ath79.c spi: use dev_get_platdata() 2013-08-29 13:56:23 +01:00
spi-atmel.c spi/atmel: Fix format specifier warnings 2013-07-31 17:55:00 +01:00
spi-au1550.c spi: use dev_get_platdata() 2013-08-29 13:56:23 +01:00
spi-bcm63xx.c Merge remote-tracking branch 'spi/topic/qspi' into spi-next 2013-09-01 13:49:06 +01:00
spi-bcm2835.c spi: bcm2835: Add spi_master_get() call to prevent use after free 2013-08-22 19:07:51 +01:00
spi-bfin-sport.c spi: use dev_get_platdata() 2013-08-29 13:56:23 +01:00
spi-bfin-v3.c Merge remote-tracking branch 'spi/topic/pdata' into spi-next 2013-09-01 13:49:03 +01:00
spi-bfin5xx.c spi: use dev_get_platdata() 2013-08-29 13:56:23 +01:00
spi-bitbang-txrx.h
spi-bitbang.c spi: bitbang: Remove unused tmp variable 2013-08-15 10:52:24 +01:00
spi-butterfly.c
spi-clps711x.c spi/clps711x: Remove unneeded devm_ deallocations 2013-07-15 11:36:33 +01:00
spi-coldfire-qspi.c Merge remote-tracking branch 'spi/topic/qspi' into spi-next 2013-09-01 13:49:06 +01:00
spi-davinci.c Merge remote-tracking branch 'spi/topic/pdata' into spi-next 2013-09-01 13:49:03 +01:00
spi-dw-mid.c
spi-dw-mmio.c spi: remove unnecessary platform_set_drvdata() 2013-05-13 18:00:30 +04:00
spi-dw-pci.c spi: Remove HOTPLUG section attributes 2012-12-07 17:06:43 +00:00
spi-dw.c spi: convert drivers to use bits_per_word_mask 2013-05-29 20:48:17 +01:00
spi-dw.h
spi-efm32.c spi: efm32: Fix build error 2013-08-31 16:29:14 +01:00
spi-ep93xx.c Merge remote-tracking branch 'spi/topic/pdata' into spi-next 2013-09-01 13:49:03 +01:00
spi-falcon.c spi/mips-lantiq: set SPI_MASTER_HALF_DUPLEX flag 2013-02-05 17:16:55 +00:00
spi-fsl-cpm.c 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-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:Add Freescale DSPI driver for Vybrid VF610 platform 2013-08-22 11:33:13 +01:00
spi-fsl-espi.c spi: use dev_get_platdata() 2013-08-29 13:56:23 +01:00
spi-fsl-lib.c spi: use dev_get_platdata() 2013-08-29 13:56:23 +01:00
spi-fsl-lib.h spi/spi-fsl-spi: Add support for gpio chipselects for GRLIB type cores 2013-04-07 10:07:57 +01:00
spi-fsl-spi.c spi: use dev_get_platdata() 2013-08-29 13:56:23 +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 spi: use dev_get_platdata() 2013-08-29 13:56:23 +01:00
spi-imx.c spi/imx: expose module alias for loading from device-tree 2013-07-29 12:40:08 +01:00
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: use dev_get_platdata() 2013-08-29 13:56:23 +01:00
spi-mpc52xx.c spi: use platform_{get,set}_drvdata() 2013-05-23 09:09:55 -05:00
spi-mpc512x-psc.c Merge remote-tracking branch 'spi/topic/pdata' into spi-next 2013-09-01 13:49:03 +01:00
spi-mxs.c spi: spi-mxs: Remove unused bits_per_word variable 2013-08-06 18:06:29 +01:00
spi-nuc900.c Merge remote-tracking branch 'spi/topic/pdata' into spi-next 2013-09-01 13:49:03 +01:00
spi-oc-tiny.c Merge remote-tracking branch 'spi/topic/pdata' into spi-next 2013-09-01 13:49:03 +01:00
spi-octeon.c spi: octeon: Convert to use bits_per_word_mask 2013-08-20 11:34:08 +01:00
spi-omap-100k.c Merge remote-tracking branch 'spi/topic/pdata' into spi-next 2013-09-01 13:49:03 +01:00
spi-omap-uwire.c spi: use platform_{get,set}_drvdata() 2013-05-23 09:09:55 -05:00
spi-omap2-mcspi.c Merge remote-tracking branch 'spi/topic/qspi' into spi-next 2013-09-01 13:49:06 +01:00
spi-orion.c Merge remote-tracking branch 'spi/topic/orion' into spi-next 2013-09-01 13:49:02 +01:00
spi-pl022.c Merge remote-tracking branch 'spi/topic/qspi' into spi-next 2013-09-01 13:49:06 +01:00
spi-ppc4xx.c Merge remote-tracking branch 'spi/topic/pdata' into spi-next 2013-06-26 16:21:02 +01:00
spi-pxa2xx-dma.c Merge remote-tracking branch 'spi/topic/pxa' into spi-next 2013-06-26 16:21:03 +01:00
spi-pxa2xx-pci.c spi/pxa2xx-pci: correct the return value check of pcim_iomap_regions() 2013-03-12 18:30:56 +00:00
spi-pxa2xx-pxadma.c spi/pxa2xx: break out the private DMA API usage into a separate file 2013-02-08 12:15:21 +00:00
spi-pxa2xx.c spi/pxa2xx: check status register as well to determine if the device is off 2013-09-04 20:14:29 +01:00
spi-pxa2xx.h spi/pxa2xx: add support for Intel Low Power Subsystem SPI 2013-02-08 13:14:40 +00:00
spi-rspi.c Merge remote-tracking branch 'spi/topic/rspi' into spi-next 2013-09-01 13:49:08 +01:00
spi-s3c24xx-fiq.h
spi-s3c24xx-fiq.S
spi-s3c24xx.c spi: Use dev_get_drvdata at appropriate places 2013-08-29 13:57:14 +01:00
spi-s3c64xx.c Merge remote-tracking branch 'spi/topic/s3c64xx' into spi-next 2013-09-01 13:49:09 +01:00
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 Merge remote-tracking branch 'spi/topic/sh-hspi' into spi-next 2013-09-01 13:49:10 +01:00
spi-sh-msiof.c Merge remote-tracking branch 'spi/topic/sh-msiof' into spi-next 2013-09-01 13:49:11 +01:00
spi-sh-sci.c spi: use dev_get_platdata() 2013-08-29 13:56:23 +01:00
spi-sh.c spi: use platform_{get,set}_drvdata() 2013-05-23 09:09:55 -05:00
spi-sirf.c Merge remote-tracking branch 'spi/topic/sirf' into spi-next 2013-09-01 13:49:12 +01:00
spi-tegra20-sflash.c spi/tegra20-sflash: Use core runtime PM 2013-07-29 18:00:26 +01:00
spi-tegra20-slink.c spi/tegra20-slink: Use core runtime PM 2013-07-29 18:00:30 +01:00
spi-tegra114.c Merge remote-tracking branch 'spi/topic/tegra' into spi-next 2013-09-01 13:49:13 +01:00
spi-ti-qspi.c spi/qspi: fix missing unlock on error in ti_qspi_start_transfer_one() 2013-09-01 13:47:55 +01:00
spi-ti-ssp.c spi: use dev_get_platdata() 2013-08-29 13:56:23 +01:00
spi-tle62x0.c Merge remote-tracking branch 'spi/topic/tel62x0' into spi-next 2013-09-01 13:49:14 +01:00
spi-topcliff-pch.c spi-topcliff-pch: Add MODULE_DEVICE_TABLE 2013-08-13 01:00:51 +01:00
spi-txx9.c spi/txx9: Use linux/gpio.h not asm/gpio.h 2013-07-30 12:16:04 +01:00
spi-xcomm.c spi: convert drivers to use bits_per_word_mask 2013-05-29 20:48:17 +01:00
spi-xilinx.c Merge remote-tracking branch 'spi/topic/pdata' into spi-next 2013-09-01 13:49:03 +01:00
spi.c Merge remote-tracking branch 'spi/topic/quad' into spi-next 2013-09-01 13:49:07 +01:00
spidev.c spi/spidev: Use PTR_RET function 2013-04-01 14:32:32 +01:00