James Clark aa93890d2d spi: spi-fsl-dspi: Clear completion counter before initiating transfer ... [ Upstream commit fa60c094c1 ] In target mode, extra interrupts can be received between the end of a transfer and halting the module if the host continues sending more data. If the interrupt from this occurs after the reinit_completion() then the completion counter is left at a non-zero value. The next unrelated transfer initiated by userspace will then complete immediately without waiting for the interrupt or writing to the RX buffer. Fix it by resetting the counter before the transfer so that lingering values are cleared. This is done after clearing the FIFOs and the status register but before the transfer is initiated, so no interrupts should be received at this point resulting in other race conditions. Fixes: 4f5ee75ea1 ("spi: spi-fsl-dspi: Replace interruptible wait queue with a simple completion") Signed-off-by: James Clark <james.clark@linaro.org> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20250627-james-nxp-spi-dma-v4-1-178dba20c120@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2025-07-10 15:59:47 +02:00
..
atmel-quadspi.c	spi: atmel-quadspi: Fix wrong register value written to MR	2025-03-07 16:56:41 +01:00
internals.h
Kconfig	spi: spi-zynqmp-gqspi: fix driver kconfig dependencies	2024-01-25 15:27:19 -08:00
Makefile
spi-altera-core.c
spi-altera-dfl.c
spi-altera-platform.c
spi-amd.c
spi-ar934x.c
spi-armada-3700.c
spi-aspeed-smc.c	spi: aspeed: Fix an error handling path in aspeed_spi_[read|write]_user()	2024-12-19 18:08:55 +01:00
spi-at91-usart.c
spi-ath79.c
spi-atmel.c	spi: atmel: Fix clock issue when using devices with different polarities	2024-01-05 15:18:38 +01:00
spi-au1550.c
spi-axi-spi-engine.c	spi: axi-spi-engine: fix version format string	2024-05-17 11:55:57 +02:00
spi-bcm-qspi.c	spi: bcm-qspi: fix SFDP BFPT read by usig mspi read	2024-01-31 16:17:12 -08:00
spi-bcm-qspi.h
spi-bcm63xx-hsspi.c	spi: bcm63xx-hsspi: fix shared reset	2025-06-27 11:07:17 +01:00
spi-bcm63xx.c	spi: bcm63xx-spi: fix shared reset	2025-06-27 11:07:17 +01:00
spi-bcm2835.c
spi-bcm2835aux.c
spi-bitbang-txrx.h
spi-bitbang.c
spi-brcmstb-qspi.c
spi-butterfly.c
spi-cadence-quadspi.c	spi: cadence-qspi: fix pointer reference in runtime PM hooks	2025-05-22 14:10:11 +02:00
spi-cadence-xspi.c	spi: cadence: Ensure data lines set to low during dummy-cycle period	2024-07-11 12:47:18 +02:00
spi-cadence.c
spi-cavium-octeon.c
spi-cavium-thunderx.c
spi-cavium.c
spi-cavium.h
spi-clps711x.c
spi-coldfire-qspi.c
spi-davinci.c
spi-dln2.c
spi-dw-bt1.c
spi-dw-core.c	spi: dw: Round of n_bytes to power of 2	2023-07-19 16:21:05 +02:00
spi-dw-dma.c
spi-dw-mmio.c	spi: dw: Remove misleading comment for Mount Evans SoC	2023-07-27 08:50:50 +02:00
spi-dw-pci.c
spi-dw.h
spi-ep93xx.c
spi-falcon.c
spi-fsi.c
spi-fsl-cpm.c	spi: fsl-cpm: Use 16 bit mode for large transfers with even size	2023-05-17 11:54:00 +02:00
spi-fsl-cpm.h
spi-fsl-dspi.c	spi: spi-fsl-dspi: Clear completion counter before initiating transfer	2025-07-10 15:59:47 +02:00
spi-fsl-espi.c
spi-fsl-lib.c
spi-fsl-lib.h
spi-fsl-lpspi.c	spi: spi-fsl-lpspi: Use IRQF_NO_AUTOEN flag in request_irq()	2024-12-14 19:53:20 +01:00
spi-fsl-qspi.c
spi-fsl-spi.c	spi: fsl-cpm: Use 16 bit mode for large transfers with even size	2023-05-17 11:54:00 +02:00
spi-fsl-spi.h
spi-geni-qcom.c	spi: geni-qcom: Fix incorrect free_irq() sequence	2024-09-18 19:23:06 +02:00
spi-gpio.c
spi-gxp.c	spi: spi-gxp: BUG: Correct spi write return value	2023-10-06 14:56:46 +02:00
spi-hisi-kunpeng.c	spi: hisi-kunpeng: Delete the dump interface of data registers in debugfs	2024-05-17 11:55:58 +02:00
spi-hisi-sfc-v3xx.c	spi: hisi-sfc-v3xx: Return IRQ_NONE if no interrupts were detected	2024-03-01 13:26:25 +01:00
spi-img-spfi.c
spi-imx.c	spi: spi-imx: Add check for spi_imx_setupxfer()	2025-05-02 07:47:08 +02:00
spi-ingenic.c
spi-intel-pci.c	spi: intel-pci: Add support for Granite Rapids SPI serial flash	2023-10-06 14:56:55 +02:00
spi-intel-platform.c
spi-intel.c
spi-intel.h
spi-iproc-qspi.c
spi-jcore.c
spi-lantiq-ssc.c
spi-lm70llp.c
spi-loopback-test.c	spi: loopback-test: Do not split 1024-byte hexdumps	2025-05-22 14:10:02 +02:00
spi-lp8841-rtc.c
spi-mem.c
spi-meson-spicc.c
spi-meson-spifc.c
spi-microchip-core-qspi.c	spi: microchip-core-qspi: fix setting spi bus clock rate	2024-05-17 11:56:22 +02:00
spi-microchip-core.c	spi: microchip-core: fix init function not setting the master and motorola modes	2024-08-03 08:49:51 +02:00
spi-mpc52xx-psc.c
spi-mpc52xx.c	spi: mpc52xx: Add cancel_work_sync before module remove	2024-12-14 19:54:30 +01:00
spi-mpc512x-psc.c
spi-mt65xx.c	spi: spi-mt65xx: Fix NULL pointer access in interrupt handler	2024-03-26 18:21:02 -04:00
spi-mt7621.c
spi-mtk-nor.c
spi-mtk-snfi.c
spi-mux.c	spi: mux: set ctlr->bits_per_word_mask	2024-07-25 09:49:19 +02:00
spi-mxic.c
spi-mxs.c	spi-mxs: Fix chipselect glitch	2025-03-13 12:53:24 +01:00
spi-npcm-fiu.c	spi: npcm-fiu: Fix UMA reads when dummy.nbytes == 0	2023-11-08 14:10:59 +01:00
spi-npcm-pspi.c
spi-nxp-fspi.c	spi: nxp-fspi: fix the KASAN report out-of-bounds bug	2024-09-18 19:23:06 +02:00
spi-oc-tiny.c
spi-omap-100k.c
spi-omap-uwire.c
spi-omap2-mcspi.c
spi-orion.c
spi-pic32-sqi.c
spi-pic32.c
spi-pl022.c
spi-ppc4xx.c	spi: ppc4xx: Avoid returning 0 when failed to parse and map IRQ	2024-10-17 15:20:45 +02:00
spi-pxa2xx-dma.c
spi-pxa2xx-pci.c
spi-pxa2xx.c
spi-pxa2xx.h
spi-qcom-qspi.c
spi-qup.c	spi: qup: Request DMA before enabling clocks	2023-06-14 11:15:15 +02:00
spi-rb4xx.c
spi-realtek-rtl.c
spi-rockchip-sfc.c
spi-rockchip.c	spi: rockchip: Resolve unbalanced runtime PM / system PM handling	2024-09-12 11:10:18 +02:00
spi-rpc-if.c	memory: renesas-rpc-if: Remove Runtime PM wrappers	2024-12-14 19:53:37 +01:00
spi-rspi.c
spi-s3c24xx-regs.h
spi-s3c24xx.c
spi-s3c64xx.c	spi: s3c64xx: fix timeout counters in flush_fifo	2024-10-17 15:21:49 +02:00
spi-sc18is602.c
spi-sh-hspi.c
spi-sh-msiof.c	spi: sh-msiof: Fix maximum DMA transfer size	2025-06-27 11:07:07 +01:00
spi-sh-sci.c
spi-sh.c
spi-sifive.c
spi-slave-mt27xx.c
spi-slave-system-control.c
spi-slave-time.c
spi-sprd-adi.c
spi-sprd.c
spi-st-ssc4.c
spi-stm32-qspi.c	spi: stm32: qspi: Clamp stm32_qspi_get_mode() output to CCR_BUSWIDTH_4	2024-06-27 13:46:23 +02:00
spi-stm32.c	spi: stm32: Don't warn about spurious interrupts	2024-06-12 11:03:58 +02:00
spi-sun4i.c	spi: spi-sun4i: fix early activation	2025-06-04 14:40:26 +02:00
spi-sun6i.c	spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain	2023-10-06 14:56:51 +02:00
spi-sunplus-sp7021.c
spi-synquacer.c
spi-tegra20-sflash.c	spi: tegra20-sflash: fix to check return value of platform_get_irq() in tegra_sflash_probe()	2023-09-13 09:42:31 +02:00
spi-tegra20-slink.c	spi: tegra: Fix missing IRQ check in tegra_slink_probe()	2023-11-20 11:51:55 +01:00
spi-tegra114.c
spi-tegra210-quad.c	spi: tegra210-quad: modify chip select (CS) deactivation	2025-06-27 11:07:07 +01:00
spi-test.h
spi-ti-qspi.c
spi-tle62x0.c
spi-topcliff-pch.c
spi-uniphier.c
spi-xcomm.c
spi-xilinx.c
spi-xlp.c
spi-xtensa-xtfpga.c
spi-zynq-qspi.c	spi: zynq-qspi: Add check for clk_enable()	2025-02-21 13:48:59 +01:00
spi-zynqmp-gqspi.c	spi: zynqmp-gqspi: Always acknowledge interrupts	2025-06-04 14:40:17 +02:00
spi.c	spi: Fix acpi deferred irq probe	2024-12-14 19:54:02 +01:00
spidev.c	spi: spidev: Add missing spi_device_id for jg10309-01	2024-09-30 16:23:50 +02:00