linux-stable/drivers/spi
Octavian Purdila 7f24467f3b spi / ACPI: add support for ACPI reconfigure notifications
This patch adds supports for SPI device enumeration and removal via
ACPI reconfiguration notifications that are send as a result of an
ACPI table load or unload operation.

The code is very similar with the device tree reconfiguration code
with only small differences in the way we test and set the enumerated
state of the device:

 * the equivalent of device tree's OF_POPULATED flag is the
   flags.visited field in the ACPI device and the following wrappers
   are used to manipulate it: acpi_device_enumerated(),
   acpi_device_set_enumerated() and acpi_device_clear_enumerated()

 * the device tree code checks of status of the OF_POPULATED flag to
   avoid trying to create duplicate Linux devices in two places: once
   when the controller is probed, and once when the reconfigure event
   is received; in the ACPI code the check is performed only once when
   the ACPI namespace is searched because this code path is invoked in
   both of the two mentioned cases

The rest of the enumeration handling is similar with device tree: when
the Linux device is unregistered the ACPI device is marked as not
enumerated; also, when a device remove notification is received we
check that the device is in the enumerated state before continuing
with the removal of the Linux device.

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-07-08 21:52:35 +02:00
..
Kconfig Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/qup', 'spi/topic/rockchip', 'spi/topic/st-ssc4' and 'spi/topic/xlp' into spi-next 2016-05-23 12:16:55 +01:00
Makefile spi: pic32-sqi: add SPI driver for PIC32 SQI controller. 2016-04-18 17:52:46 +01:00
spi-adi-v3.c
spi-altera.c
spi-ath79.c spi: ath79: simplify iomem resource mapping 2015-09-30 20:33:29 +01:00
spi-atmel.c spi: atmel: fix gpio chip-select in case of non-DT platform 2016-01-28 23:25:54 +01:00
spi-au1550.c spi: au1550: Simplify au1550_spi_setupxfer() 2015-09-16 20:54:54 +01:00
spi-axi-spi-engine.c spi: Drop duplicate code to set master->dev.parent 2016-04-26 11:56:09 +01:00
spi-bcm53xx.c spi: bcm53xx: add spi_flash_read callback for MMIO-based reads 2016-04-18 13:53:46 +01:00
spi-bcm53xx.h
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 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-bfin-sport.c spi: bfin-sport: Calculate transfer speed unconditionally 2015-09-16 20:53:45 +01:00
spi-bfin5xx.c spi: spi-bfin5xx: Calculate transfer speed unconditionally 2015-09-16 20:54:32 +01:00
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: switch to the generic implementation of transfer_one_message 2015-10-05 14:55:56 +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-clps711x.c
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 dma_request_chan() for requesting DMA channel 2016-04-29 18:15:15 +01:00
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 2016-02-05 17:41:49 +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: Use SPI_TMOD_TR rather than magic const 0 to set tmode 2015-12-23 12:12:09 +00:00
spi-dw.h spi: dw-mid: constify dw_spi_dma_ops structure 2015-11-30 11:34:50 +00:00
spi-efm32.c
spi-ep93xx.c spi: spi-ep93xx: Fix the PTR_ERR() argument 2016-05-24 16:54:50 +01:00
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/dw', 'spi/topic/flash-read', 'spi/topic/fsl-dspi', 'spi/topic/fsl-espi' and 'spi/topic/kconfig' into spi-next 2016-05-23 12:16:48 +01:00
spi-fsl-espi.c spi/fsl-espi: avoid infinite loops on fsl_espi_cpu_irq() 2016-03-28 19:41:18 +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-gpio.c
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 possible NULL pointer deref 2016-03-17 11:44:34 +00:00
spi-lm70llp.c spi: lm70llp: remove printk 2015-12-07 20:09:09 +00:00
spi-loopback-test.c spi: fix counting in spi-loopback-test code 2016-01-15 18:13:53 +00:00
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: Fix module autoload for OF platform driver 2015-09-19 07:55:25 -07:00
spi-mpc52xx-psc.c
spi-mpc52xx.c
spi-mpc512x-psc.c spi: mpc512x: Call mpc512x_psc_spi_transfer_setup() unconditionally 2015-09-17 12:33:31 +01:00
spi-mt65xx.c Merge remote-tracking branches 'spi/topic/lm70llp', 'spi/topic/loopback', 'spi/topic/mtk' and 'spi/topic/omap2-mcspi' into spi-next 2016-01-11 16:48:33 +00:00
spi-mxs.c
spi-nuc900.c
spi-oc-tiny.c spi: oc-tiny: Use of_property_read_u32 instead of open-coding it 2015-09-16 19:16:01 +01:00
spi-octeon.c spi: octeon: Convert to use devm_ioremap_resource 2016-03-21 13:40:16 +00:00
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-omap2-mcspi.c spi: omap2-mcspi: Use dma_request_chan() for requesting DMA channel 2016-04-29 18:15:48 +01:00
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-pic32-sqi.c spi: pic32-sqi: Remove pic32_sqi_setup and pic32_sqi_cleanup 2016-05-06 18:18:27 +01:00
spi-pic32.c spi: pic32: Fix checking return value of devm_ioremap_resource 2016-04-29 12:34:20 +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: bitbang: Replace spinlock by mutex 2015-09-17 12:13:40 +01:00
spi-pxa2xx-dma.c spi: pxa2xx: Use dummy buffers provided by SPI core 2016-03-28 10:42:00 +01:00
spi-pxa2xx-pci.c spi: Updates for v4.7 2016-05-24 11:12:32 -07:00
spi-pxa2xx.c Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/qup', 'spi/topic/rockchip', 'spi/topic/st-ssc4' and 'spi/topic/xlp' into spi-next 2016-05-23 12:16:55 +01:00
spi-pxa2xx.h spi: pxa2xx: Use dummy buffers provided by SPI core 2016-03-28 10:42:00 +01:00
spi-qup.c spi: qup: Add spi_master_put in remove function 2016-05-02 15:27:28 +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: potential NULL dereference on error 2016-05-04 14:41:56 +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: bitbang: Replace spinlock by mutex 2015-09-17 12:13:40 +01:00
spi-s3c64xx.c spi: s3c64xx: Remove unused platform_device_id entries 2015-12-30 16:48:58 +00:00
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-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-sh.c
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: st-ssc4: Fix missing spi_master_put in spi_st_probe error paths 2016-04-29 18:16:25 +01:00
spi-sun4i.c Merge remote-tracking branches 'spi/topic/sun4i', 'spi/topic/topcliff-pch' and 'spi/topic/zynq' into spi-next 2016-01-11 16:48:38 +00:00
spi-sun6i.c spi: sun4i: allow transfers to set transmission speed 2015-11-18 18:34:56 +00:00
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: Handle truncated frames properly 2016-04-13 08:12:41 +01:00
spi-tle62x0.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
spi-topcliff-pch.c
spi-txx9.c spi: txx9: Use transfer speed unconditionally 2015-09-16 20:52:52 +01:00
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 race condition on last word read 2015-10-29 09:03:42 +09:00
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: 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 spi / ACPI: add support for ACPI reconfigure notifications 2016-07-08 21:52:35 +02:00
spidev.c Merge remote-tracking branches 'spi/topic/overlay', 'spi/topic/pxa2xx', 'spi/topic/s3c64xx', 'spi/topic/sh-msiof' and 'spi/topic/spidev' into spi-next 2016-01-11 16:48:35 +00:00