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linux/drivers/spi
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David Bauer c5aa9ea54a spi: sync up initial chipselect state 
[ Upstream commit d347b4aaa1a042ea528e385d9070b74c77a14321 ]

When initially probing the SPI slave device, the call for disabling an
SPI device without the SPI_CS_HIGH flag is not applied, as the
condition for checking whether or not the state to be applied equals the
one currently set evaluates to true.

This however might not necessarily be the case, as the chipselect might
be active.

Add a force flag to spi_set_cs which allows to override this
early exit condition. Set it to false everywhere except when called
from spi_setup to sync up the initial CS state.

Fixes commit d40f0b6f2e21 ("spi: Avoid setting the chip select if we don't
need to")

Signed-off-by: David Bauer <mail@david-bauer.net>
Link: https://lore.kernel.org/r/20210416195956.121811-1-mail@david-bauer.net
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-11 14:47:22 +02:00
..
atmel-quadspi.c
spi: atmel-quadspi: Fix AHB memory accesses
2020-12-30 11:54:22 +01:00
internals.h
…
Kconfig
spi: dw-bt1: Fix undefined devm_mux_control_get symbol
2021-01-06 14:56:49 +01:00
Makefile
ARM: SoC platform updates
2020-10-24 10:33:08 -07:00
spi-altera.c
spi: altera: Fix memory leak on error path
2021-02-03 23:28:46 +01:00
spi-amd.c
spi: spi-amd: Do not define 'struct acpi_device_id' when !CONFIG_ACPI
2020-07-17 16:38:56 +01:00
spi-ar934x.c
spi: ar934x: Don't leak SPI master in probe error path
2020-12-30 11:54:20 +01:00
spi-armada-3700.c
spi: a3700: Remove a useless memset
2020-08-18 17:52:37 +01:00
spi-at91-usart.c
spi: spi-at91-usart: Remove unused OF table 'struct of_device_id'
2020-07-17 16:38:54 +01:00
spi-ath79.c
spi: ath79: remove spi-master setup and cleanup assignment
2021-05-11 14:47:16 +02:00
spi-atmel.c
spi: atmel: Put allocated master before return
2021-03-04 11:37:59 +01:00
spi-au1550.c
…
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: fix missing clk_disable_unprepare() on error in bcm63xx_hsspi_resume
2020-12-30 11:53:06 +01:00
spi-bcm63xx.c
spi: bcm63xx-spi: add reset support
2020-06-17 14:29:58 +01:00
spi-bcm2835.c
spi: bcm2835: Fix use-after-free on unbind
2020-11-12 15:05:35 +00:00
spi-bcm2835aux.c
spi: bcm2835aux: Restore err assignment in bcm2835aux_spi_probe
2020-11-13 18:22:24 +00:00
spi-bcm-qspi.c
spi: bcm-qspi: Fix use-after-free on unbind
2020-11-12 15:05:37 +00:00
spi-bcm-qspi.h
…
spi-bitbang-txrx.h
…
spi-bitbang.c
spi: spi-bitbang: Demote obvious misuse of kerneldoc to standard comment blocks
2020-07-17 16:38:45 +01:00
spi-brcmstb-qspi.c
…
spi-butterfly.c
…
spi-cadence-quadspi.c
spi: cadence: set cqspi to the driver_data field of struct device
2021-03-25 09:04:04 +01:00
spi-cadence.c
spi: cadence: cache reference clock rate during probe
2021-01-23 16:04:05 +01:00
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
…
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 clk_prepare_enable and clk_disable_unprepare
2020-07-17 00:55:26 +01:00
spi-davinci.c
spi: davinci: Fix use-after-free on unbind
2020-12-30 11:54:20 +01:00
spi-dln2.c
spi: dln2: Fix reference leak to master
2021-05-11 14:47:20 +02:00
spi-dw-bt1.c
spi: dw: Avoid stack content exposure
2021-03-04 11:38:07 +01:00
spi-dw-core.c
spi: dw: Fix spi registration for controllers overriding CS
2020-11-25 12:54:05 +00:00
spi-dw-dma.c
spi: dw: Add generic DW SSI status-check method
2020-10-08 23:00:18 +01:00
spi-dw-mmio.c
spi: dw: Add DWC SSI capability
2020-10-08 23:00:06 +01:00
spi-dw-pci.c
spi: dw: Add DWC SSI capability
2020-10-08 23:00:06 +01:00
spi-dw.h
spi: dw: Introduce max mem-ops SPI bus frequency setting
2020-10-08 23:00:20 +01:00
spi-efm32.c
spi: efm32: Convert to use GPIO descriptors
2020-03-27 15:52:23 +00:00
spi-ep93xx.c
spi: spi-ep93xx: Fix API slippage
2020-07-17 16:38:47 +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: fsi: Fix transfer returning without finalizing message
2020-11-11 12:34:29 +00:00
spi-fsl-cpm.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
spi-fsl-cpm.h
…
spi-fsl-dspi.c
spi: spi-fsl-dspi: Use max_native_cs instead of num_chipselect to set SPI_MCR
2020-12-30 11:53:27 +01:00
spi-fsl-espi.c
Merge remote-tracking branch 'spi/for-5.10' into spi-next
2020-10-09 16:01:22 +01:00
spi-fsl-lib.c
…
spi-fsl-lib.h
…
spi-fsl-lpspi.c
spi: lpspi: Fix use-after-free on unbind
2020-11-12 18:45:56 +00:00
spi-fsl-qspi.c
spi: Fix SPI NOR and SPI NAND acronyms
2020-07-17 00:55:25 +01:00
spi-fsl-spi.c
spi: fsl: invert spisel_boot signal on MPC8309
2021-03-04 11:38:43 +01:00
spi-fsl-spi.h
…
spi-geni-qcom.c
spi: spi-geni-qcom: Fix geni_spi_isr() NULL dereference in timeout case
2021-01-17 14:17:00 +01:00
spi-gpio.c
spi: gpio: Don't leak SPI master in probe error path
2020-12-30 11:54:20 +01:00
spi-hisi-sfc-v3xx.c
spi: hisi-sfc-v3xx: fix spelling mistake "occured" -> "occurred"
2020-09-28 20:33:56 +01:00
spi-img-spfi.c
spi: img-spfi: fix reference leak in img_spfi_resume
2020-12-30 11:53:01 +01:00
spi-imx.c
spi: imx: Don't print error on -EPROBEDEFER
2021-03-04 11:37:58 +01:00
spi-iproc-qspi.c
…
spi-jcore.c
remove ioremap_nocache and devm_ioremap_nocache
2020-01-06 09:45:59 +01:00
spi-lantiq-ssc.c
spi: lantiq: remove redundant irqsave and irqrestore in hardIRQ
2020-09-17 19:56:02 +01:00
spi-lm70llp.c
…
spi-loopback-test.c
spi: spi-loopback-test: Fix out-of-bounds read
2020-09-02 19:38:24 +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: fix reference leak in spi_mem_access_start
2020-12-30 11:53:02 +01:00
spi-meson-spicc.c
spi: spi-meson-spicc: Remove set but never used variable 'data' from meson_spicc_reset_fifo()
2020-07-17 16:38:48 +01:00
spi-meson-spifc.c
spi: spi-meson-spifc: Fix misdocumenting of 'dev' in 'struct meson_spifc'
2020-07-17 16:38:48 +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
…
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: add spi support for mt8192 IC
2020-07-22 01:56:00 +01:00
spi-mt7621.c
spi: mt7621: Don't leak SPI master in probe error path
2020-12-30 11:54:22 +01:00
spi-mtk-nor.c
spi: spi-mtk-nor: Don't leak SPI master in probe error path
2020-12-30 11:54:20 +01:00
spi-mux.c
spi: spi-mux: Simplify with dev_err_probe()
2020-09-08 18:19:27 +01:00
spi-mxic.c
spi: mxic: Don't leak SPI master in probe error path
2020-12-30 11:54:20 +01:00
spi-mxs.c
spi: mxs: fix reference leak in mxs_spi_probe
2020-12-30 11:53:15 +01:00
spi-npcm-fiu.c
spi: npcm-fiu: Disable clock in probe error path
2020-12-30 11:54:21 +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 fspi panic by unexpected interrupts
2020-11-23 14:10:02 +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: Improve performance waiting for CHSTAT
2020-09-22 01:04:20 +01:00
spi-omap-100k.c
spi: omap-100k: Fix reference leak to master
2021-05-11 14:47:20 +02:00
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: Fix SPI NOR and SPI NAND acronyms
2020-07-17 00:55:25 +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: Don't leak DMA channels in probe error path
2020-12-30 11:54:21 +01:00
spi-pl022.c
spi: spi-pl022: Provide missing struct attribute/function param docs
2020-07-17 16:38:50 +01:00
spi-ppc4xx.c
spi: ppc4xx: Convert to use GPIO descriptors
2020-07-22 01:55:52 +01:00
spi-pxa2xx-dma.c
…
spi-pxa2xx-pci.c
spi: pxa2xx: Fix the controller numbering for Wildcat Point
2021-03-04 11:38:06 +01:00
spi-pxa2xx.c
spi: pxa2xx: Fix use-after-free on unbind
2020-12-30 11:54:19 +01:00
spi-pxa2xx.h
…
spi-qcom-qspi.c
spi: spi-qcom-qspi: Fix use-after-free on unbind
2020-12-30 11:54:21 +01:00
spi-qup.c
spi: qup: fix PM reference leak in spi_qup_remove()
2021-05-11 14:47:20 +02:00
spi-rb4xx.c
spi: rb4xx: Don't leak SPI master in probe error path
2020-12-30 11:54:21 +01:00
spi-rockchip.c
spi: rockchip: Fix error in SPI slave pio read
2020-07-28 17:29:31 +01:00
spi-rpc-if.c
spi: rpc-if: Fix use-after-free on unbind
2020-12-30 11:54:21 +01:00
spi-rspi.c
spi: rspi: Fill in controller speed limits
2020-08-20 22:38:17 +01:00
spi-s3c24xx-regs.h
ARM: s3c24xx: move regs-spi.h into spi driver
2020-08-19 21:40:14 +02:00
spi-s3c24xx.c
ARM: SoC platform updates
2020-10-24 10:33:08 -07:00
spi-s3c64xx.c
spi: spi-s3c64xx: Turn on interrupts upon resume
2020-10-02 21:54:24 +01:00
spi-sc18is602.c
spi: sc18is602: Don't leak SPI master in probe error path
2020-12-30 11:54:21 +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
…
spi-sh.c
spi: spi-sh: Fix use-after-free on unbind
2020-12-30 11:54:20 +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-time.c
…
spi-sprd-adi.c
spi: sprd: Simplify with dev_err_probe()
2020-09-14 15:50:17 +01:00
spi-sprd.c
spi: sprd: fix reference leak in sprd_spi_remove
2020-12-30 11:53:08 +01:00
spi-st-ssc4.c
spi: st-ssc4: Fix unbalanced pm_runtime_disable() in probe error path
2020-12-30 11:54:21 +01:00
spi-stm32-qspi.c
spi: stm32-qspi: fix pm_runtime usage_count counter
2021-05-11 14:47:13 +02:00
spi-stm32.c
spi: stm32: make spurious and overrun interrupts visible
2021-03-17 17:06:23 +01:00
spi-sun4i.c
spi: sun4i: update max transfer size reported
2020-07-27 14:55:21 +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: spi-synquacer: fix set_cs handling
2021-03-04 11:38:43 +01:00
spi-tegra20-sflash.c
spi: tegra20-sflash: fix reference leak in tegra_sflash_resume
2020-12-30 11:53:05 +01:00
spi-tegra20-slink.c
spi: tegra20-slink: fix reference leak in slink ops of tegra20
2020-12-30 11:53:05 +01:00
spi-tegra114.c
spi: tegra114: fix reference leak in tegra spi ops
2020-12-30 11:53:06 +01:00
spi-test.h
…
spi-ti-qspi.c
spi: spi-ti-qspi: Free DMA resources
2021-05-11 14:47:13 +02:00
spi-tle62x0.c
…
spi-topcliff-pch.c
spi/topcliff-pch: drop double zeroing
2020-09-21 17:56:38 +01:00
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: Fix info message during probe
2020-09-17 19:56:01 +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-zynq-qspi: Add description for 2 missing attributes/parameters
2020-07-17 16:38:51 +01:00
spi-zynqmp-gqspi.c
spi: spi-zynqmp-gqspi: Fix incorrect indentation
2020-09-24 12:59:29 +01:00
spi.c
spi: sync up initial chipselect state
2021-05-11 14:47:22 +02:00
spidev.c
spi: spidev: Remove redundant initialization of variable status
2020-09-09 16:27:46 +01:00