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linux/drivers/spi
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Mark Brown e126859729
spi: Only defer to thread for cleanup when needed 
Currently we always defer idling of controllers to the SPI thread, the goal
being to ensure that we're doing teardown that's not suitable for atomic
context in an appropriate context and to try to batch up more expensive
teardown operations when the system is under higher load, allowing more
work to be started before the SPI thread is scheduled. However when the
controller does not require any substantial work to idle there is no need
to do this, we can instead save the context switch and immediately mark
the controller as idle. This is particularly useful for systems where there
is frequent but not constant activity.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20200715163610.9475-1-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-17 00:55:23 +01:00
..
atmel-quadspi.c
spi: atmel-quadspi: reject DTR ops
2020-07-14 17:29:39 +01:00
internals.h
spi: Add an helper to flush the message queue
2018-04-23 15:48:18 +01:00
Kconfig
Merge series "mtd: spi-nor: Move cadence-qaudspi to spi-mem framework" from Vignesh Raghavendra <vigneshr@ti.com>:
2020-06-19 14:26:55 +01:00
Makefile
Merge series "mtd: spi-nor: Move cadence-qaudspi to spi-mem framework" from Vignesh Raghavendra <vigneshr@ti.com>:
2020-06-19 14:26:55 +01:00
spi-altera.c
spi: altera: fix module autoload
2020-06-24 16:37:47 +01:00
spi-amd.c
spi: amd: Drop superfluous member from struct amd_spi
2020-05-04 17:18:49 +01:00
spi-ar934x.c
spi: add driver for ar934x spi controller
2020-02-11 11:37:30 +00:00
spi-armada-3700.c
spi: a3700: make a3700_spi_init() return void
2020-05-06 15:55:13 +01:00
spi-at91-usart.c
spi: at91-usart: Use dma_request_chan() directly for channel request
2019-11-15 12:13:02 +00:00
spi-ath79.c
spi: ath79: use devm_platform_ioremap_resource() to simplify code
2019-09-04 17:15:29 +01:00
spi-atmel.c
spi: atmel: remove redundant label out_free
2020-07-09 22:41:11 +01:00
spi-au1550.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
spi-axi-spi-engine.c
spi: spi-axi-spi-engine: Access register after clock initialization
2020-04-09 18:46:53 +01:00
spi-bcm63xx-hsspi.c
spi: bcm63xx-hsspi: add reset support
2020-06-17 14:29:58 +01:00
spi-bcm63xx.c
spi: bcm63xx-spi: add reset support
2020-06-17 14:29:58 +01:00
spi-bcm2835.c
spi: bcm2835: Micro-optimise FIFO loops
2020-07-01 22:19:31 +01:00
spi-bcm2835aux.c
spi: bcm2835aux: Fix controller unregister order
2020-05-20 15:16:12 +01:00
spi-bcm-qspi.c
Merge branch 'for-5.7' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.8
2020-05-05 11:48:25 +01:00
spi-bcm-qspi.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 459
2019-06-19 17:09:09 +02:00
spi-bitbang-txrx.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
spi-bitbang.c
spi: bitbang: Make chipselect callback optional
2019-12-09 18:46:34 +00:00
spi-brcmstb-qspi.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 459
2019-06-19 17:09:09 +02:00
spi-butterfly.c
spi: docs: convert to ReST and add it to the kABI bookset
2019-07-31 14:13:13 -06:00
spi-cadence-quadspi.c
spi: Move cadence-quadspi driver to drivers/spi/
2020-06-19 14:26:54 +01:00
spi-cadence.c
spi: cadence: Correct handling of native chipselect
2019-11-27 12:54:45 +00:00
spi-cavium-octeon.c
spi: octeon: use devm_platform_ioremap_resource() to simplify code
2019-09-04 17:17:27 +01:00
spi-cavium-thunderx.c
spi: spi-cavium-thunderx: flag controller as half duplex
2020-06-16 00:38:39 +01:00
spi-cavium.c
spi: use new spi_transfer_delay_exec helper where straightforward
2019-10-15 11:51:57 +01:00
spi-cavium.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
spi-clps711x.c
spi: clps711x: use devm_platform_ioremap_resource() to simplify code
2019-09-04 17:17:36 +01:00
spi-coldfire-qspi.c
spi: coldfire-qspi: use devm_platform_ioremap_resource() to simplify code
2019-09-04 17:17:56 +01:00
spi-davinci.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
spi-dln2.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372
2019-06-05 17:37:10 +02:00
spi-dw-core.c
Merge remote-tracking branch 'spi/for-5.8' into spi-next
2020-05-30 00:03:53 +01:00
spi-dw-dma.c
spi: dw: Refactor mid_spi_dma_setup() to separate DMA and IRQ config
2020-05-29 20:04:04 +01:00
spi-dw-mmio.c
Merge series "spi: dw: Add generic DW DMA controller support" from Serge Semin <Sergey.Semin@baikalelectronics.ru>:
2020-05-29 17:49:56 +01:00
spi-dw-pci.c
spi: dw: Cleanup generic DW DMA code namings
2020-05-29 15:55:52 +01:00
spi-dw.h
spi: dw: Use regset32 DebugFS method to create regdump file
2020-05-29 15:55:54 +01:00
spi-efm32.c
spi: efm32: Convert to use GPIO descriptors
2020-03-27 15:52:23 +00:00
spi-ep93xx.c
SPI SUBSYSTEM: Replace HTTP links with HTTPS ones
2020-07-09 22:41:11 +01:00
spi-falcon.c
spi: spi-falcon: extend warning to delay as well
2019-10-15 11:46:57 +01:00
spi-fsi.c
spi: Add FSI-attached SPI controller driver
2020-03-10 14:11:57 +00:00
spi-fsl-cpm.c
spi: fsl-cpm: Correct the free:ing
2019-11-15 12:12:15 +00:00
spi-fsl-cpm.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
spi-fsl-dspi.c
spi: spi-fsl-dspi: Initialize completion before possible interrupt
2020-06-22 13:50:29 +01:00
spi-fsl-espi.c
spi: use new spi_transfer_delay_exec helper where straightforward
2019-10-15 11:51:57 +01:00
spi-fsl-lib.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
spi-fsl-lib.h
spi: fsl: Convert to use CS GPIO descriptors
2019-08-28 14:10:41 +01:00
spi-fsl-lpspi.c
spi: imx/fsl-lpspi: Convert to GPIO descriptors
2020-07-13 18:27:06 +01:00
spi-fsl-qspi.c
spi: spi-fsl-qspi: Fix return value check of devm_ioremap() in probe
2020-04-22 14:07:46 +01:00
spi-fsl-spi.c
spi: fsl: add missing __iomem annotation
2020-07-01 23:21:26 +01:00
spi-fsl-spi.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
spi-geni-qcom.c
spi: spi-geni-qcom: Set an autosuspend delay of 250 ms
2020-07-07 14:11:01 +01:00
spi-gpio.c
Merge branch 'for-5.4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.5
2019-10-08 19:12:28 +01:00
spi-hisi-sfc-v3xx.c
spi: hisi-sfc-v3xx: add error check after per operation
2020-04-17 14:21:00 +01:00
spi-img-spfi.c
spi: img-spfi: Convert to use GPIO descriptors
2020-07-01 23:21:29 +01:00
spi-imx.c
spi: imx/fsl-lpspi: Convert to GPIO descriptors
2020-07-13 18:27:06 +01:00
spi-iproc-qspi.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
spi-jcore.c
remove ioremap_nocache and devm_ioremap_nocache
2020-01-06 09:45:59 +01:00
spi-lantiq-ssc.c
spi: lantiq-ssc: Convert to use GPIO descriptors
2020-07-01 23:21:30 +01:00
spi-lm70llp.c
spi: docs: convert to ReST and add it to the kABI bookset
2019-07-31 14:13:13 -06:00
spi-loopback-test.c
spi: spi-loopback-test: use new delay field
2019-10-15 11:45:19 +01:00
spi-lp8841-rtc.c
spi: lp-8841: use devm_platform_ioremap_resource() to simplify code
2019-09-04 17:18:35 +01:00
spi-mem.c
spi: spi-mem: allow specifying a command's extension
2020-07-14 17:29:38 +01:00
spi-meson-spicc.c
spi: meson-spicc: add support for Amlogic G12A
2020-03-12 17:22:55 +00:00
spi-meson-spifc.c
spi: spi-meson-spifc: use devm_platform_ioremap_resource() to simplify code
2019-09-04 17:19:14 +01:00
spi-mpc52xx-psc.c
spi: use new spi_transfer_delay_exec helper where straightforward
2019-10-15 11:51:57 +01:00
spi-mpc52xx.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428
2019-06-05 17:37:16 +02:00
spi-mpc512x-psc.c
spi: use new spi_transfer_delay_exec helper where straightforward
2019-10-15 11:51:57 +01:00
spi-mt65xx.c
spi: mediatek: use correct SPI_CFG2_REG MACRO
2020-07-01 14:41:40 +01:00
spi-mt7621.c
spi: mt7621: use devm_platform_ioremap_resource() to simplify code
2019-09-04 17:19:34 +01:00
spi-mtk-nor.c
spi: spi-mtk-nor: reject DTR ops
2020-07-14 17:29:40 +01:00
spi-mux.c
spi: mux: repair mux usage
2020-05-25 13:25:34 +01:00
spi-mxic.c
spi: spi-mem: allow specifying a command's extension
2020-07-14 17:29:38 +01:00
spi-mxs.c
spi: mxs: Drop GPIO includes
2020-03-17 13:20:16 +00:00
spi-npcm-fiu.c
spi: npcm-fiu: Reuse BITS_PER_BYTE definition
2020-06-19 13:43:08 +01:00
spi-npcm-pspi.c
spi: npcm-pspi: Convert to use GPIO descriptors
2020-07-01 23:21:28 +01:00
spi-nxp-fspi.c
spi: spi-nxp-fspi: Fix a NULL vs IS_ERR() check in probe
2020-03-12 15:09:58 +00:00
spi-oc-tiny.c
SPI SUBSYSTEM: Replace HTTP links with HTTPS ones
2020-07-09 22:41:11 +01:00
spi-omap2-mcspi.c
spi: omap2-mcspi: Convert to use GPIO descriptors
2020-06-29 19:14:07 +01:00
spi-omap-100k.c
spi: omap-100k: Drop include
2020-07-14 17:38:46 +01:00
spi-omap-uwire.c
spi: omap-uwire: Use clk_prepare_enable and clk_disable_unprepare
2020-07-15 15:58:33 +01:00
spi-orion.c
spi: orion: Convert to use GPIO descriptors
2020-04-21 19:48:05 +01:00
spi-pic32-sqi.c
spi: pic32-sqi: use devm_platform_ioremap_resource() to simplify code
2019-09-04 17:20:52 +01:00
spi-pic32.c
spi: pic32: Retire dma_request_slave_channel_compat()
2019-11-22 19:53:41 +00:00
spi-pl022.c
spi: pl022: Use dma_request_chan() directly for channel request
2019-11-15 12:14:19 +00:00
spi-ppc4xx.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
spi-pxa2xx-dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
spi-pxa2xx-pci.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
spi-pxa2xx.c
Merge series "spi: spi-sun6i: One fix and some improvements" from Marc Kleine-Budde <mkl@pengutronix.de>:
2020-07-07 14:26:33 +01:00
spi-pxa2xx.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
spi-qcom-qspi.c
spi: spi-qcom-qspi: Use device managed memory for clk_bulk_data
2020-01-13 15:04:40 +00:00
spi-qup.c
spi: qup: call spi_qup_pm_resume_runtime before suspending
2020-02-21 13:48:08 +00:00
spi-rb4xx.c
spi: rb4xx: update driver to be device tree aware
2020-05-22 14:13:17 +01:00
spi-rockchip.c
spi: spi-rockchip: use num-cs property and ctlr->enable_gpiods
2020-05-15 18:50:06 +01:00
spi-rpc-if.c
spi: add Renesas RPC-IF driver
2020-06-16 00:38:38 +01:00
spi-rspi.c
spi: rspi: Use requested instead of maximum bit rate
2020-06-09 12:26:33 +01:00
spi-s3c24xx-fiq.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
spi-s3c24xx-fiq.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
spi-s3c24xx.c
spi: spi-s3c24xx: Replace zero-length array with flexible-array member
2020-03-23 18:37:06 +00:00
spi-s3c64xx.c
spi: s3c64xx: Use dma_request_chan() directly for channel request
2019-11-15 12:14:39 +00:00
spi-sc18is602.c
spi: sc18is602: Fix a typo in MODULE_DESCRIPTION
2020-04-14 12:39:37 +01:00
spi-sh-hspi.c
spi: use new spi_transfer_delay_exec helper where straightforward
2019-10-15 11:51:57 +01:00
spi-sh-msiof.c
spi: spi-sh-msiof: Fix checkpatch error Complex macros should use ()
2020-04-14 18:36:34 +01:00
spi-sh-sci.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
spi-sh.c
spi: Remove dev_err() usage after platform_get_irq()
2019-08-02 12:15:43 +01:00
spi-sifive.c
spi: sifive: disable clk when probe fails and remove
2019-11-04 13:26:11 +00:00
spi-sirf.c
spi: sirf: Use dma_request_chan() instead dma_request_slave_channel()
2019-12-16 11:57:36 +00:00
spi-slave-mt27xx.c
spi: mediatek: Use devm_platform_ioremap_resource() in mtk_spi_slave_probe()
2019-10-01 12:34:58 +01:00
spi-slave-system-control.c
spi: slave: Fix missing break in switch
2018-10-03 16:23:10 +01:00
spi-slave-time.c
spi: slave: Add SPI slave handler reporting uptime at previous message
2017-05-26 13:12:04 +01:00
spi-sprd-adi.c
spi: sprd: switch the sequence of setting WDG_LOAD_LOW and _HIGH
2020-06-02 11:45:11 +01:00
spi-sprd.c
spi: sprd: Fix the incorrect SPI register
2019-12-04 12:14:13 +00:00
spi-st-ssc4.c
spi: st-ssc4: add missed pm_runtime_disable
2019-11-18 12:59:11 +00:00
spi-stm32-qspi.c
spi: stm32-qspi: Fix error path in case of -EPROBE_DEFER
2020-06-17 13:26:41 +01:00
spi-stm32.c
spi: stm32: Add 'SPI_SIMPLEX_RX', 'SPI_3WIRE_RX' support for stm32f4
2020-05-25 15:56:16 +01:00
spi-sun4i.c
spi: sun4i: use devm_platform_ioremap_resource() to simplify code
2019-09-04 17:22:29 +01:00
spi-sun6i.c
spi: spi-sun6i: sun6i_spi_transfer_one(): enable RF_RDY interrupt only if needed
2020-07-07 10:41:41 +01:00
spi-synquacer.c
spi: Remove dev_err() usage after platform_get_irq()
2019-08-02 12:15:43 +01:00
spi-tegra20-sflash.c
spi: tegra20-sflash: Fix runtime PM imbalance on error
2020-05-28 14:01:16 +01:00
spi-tegra20-slink.c
spi: tegra20-slink: Fix runtime PM imbalance on error
2020-05-28 14:01:15 +01:00
spi-tegra114.c
spi: tegra114: Fix runtime PM imbalance on error
2020-05-28 14:01:14 +01:00
spi-test.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
spi-ti-qspi.c
SPI SUBSYSTEM: Replace HTTP links with HTTPS ones
2020-07-09 22:41:11 +01:00
spi-tle62x0.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
spi-topcliff-pch.c
spi/topcliff-pch: Remove unneeded semicolon
2019-12-09 18:45:53 +00:00
spi-txx9.c
spi: txx9: Convert to use GPIO descriptors
2019-10-30 14:14:32 +00:00
spi-uniphier.c
spi: uniphier: Use devm_platform_get_and_ioremap_resource() to simplify code
2020-05-11 18:17:52 +01:00
spi-xcomm.c
spi: use new spi_transfer_delay_exec helper where straightforward
2019-10-15 11:51:57 +01:00
spi-xilinx.c
spi: xilinx: Add DT support for selecting transfer word width
2019-10-24 12:45:21 +01:00
spi-xlp.c
spi: xlp: use devm_platform_ioremap_resource() to simplify code
2019-09-04 17:23:28 +01:00
spi-xtensa-xtfpga.c
spi: xtensa-xtfpga: Use devm_platform_ioremap_resource() in xtfpga_spi_probe()
2019-10-01 12:35:18 +01:00
spi-zynq-qspi.c
spi: spi-mem: allow specifying a command's extension
2020-07-14 17:29:38 +01:00
spi-zynqmp-gqspi.c
firmware: xilinx: Remove eemi ops for fpga related APIs
2020-04-28 15:45:09 +02:00
spi.c
spi: Only defer to thread for cleanup when needed
2020-07-17 00:55:23 +01:00
spidev.c
spi: spidev: fix a potential use-after-free in spidev_release()
2020-06-18 17:47:00 +01:00