James Clark 54f62d542d 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 15:57:45 +02:00
..
atmel-quadspi.c	spi: atmel-quadspi: Fix register name in verbose logging function	2024-12-14 19:51:09 +01:00
internals.h
Kconfig	spi: spi-zynqmp-gqspi: fix driver kconfig dependencies	2024-01-25 14:52:33 -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-at91-usart.c
spi-ath79.c
spi-atmel.c
spi-au1550.c
spi-axi-spi-engine.c
spi-bcm-qspi.c	spi: bcm-qspi: fix SFDP BFPT read by usig mspi read	2024-02-23 08:54:35 +01:00
spi-bcm-qspi.h
spi-bcm63xx-hsspi.c	spi: bcm63xx-hsspi: fix shared reset	2025-06-27 11:05:17 +01:00
spi-bcm63xx.c	spi: bcm63xx-spi: fix shared reset	2025-06-27 11:05:17 +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 probe on AM62A LP SK	2025-05-02 07:44:00 +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: Fix PM disable depth imbalance in dw_spi_bt1_probe	2022-10-26 12:34:45 +02:00
spi-dw-core.c	spi: dw: Round of n_bytes to power of 2	2023-07-23 13:46:50 +02:00
spi-dw-dma.c	spi: dw-dma: decrease reference count in dw_spi_dma_init_mfld()	2022-12-02 17:41:03 +01:00
spi-dw-mmio.c
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	2023-05-30 13:55:29 +01:00
spi-fsl-cpm.h
spi-fsl-dspi.c	spi: spi-fsl-dspi: Clear completion counter before initiating transfer	2025-07-10 15:57:45 +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 19:50:46 +01:00
spi-fsl-qspi.c
spi-fsl-spi.c	spi: fsl-cpm: Use 16 bit mode for large transfers with even size	2023-05-30 13:55:29 +01:00
spi-fsl-spi.h
spi-geni-qcom.c	spi: spi-geni-qcom: Correct CS_TOGGLE bit in SPI_TRANS_CFG	2023-07-23 13:46:49 +02:00
spi-gpio.c	spi: spi-gpio: Don't set MOSI as an input if not 3WIRE mode	2022-12-31 13:14:18 +01:00
spi-hisi-kunpeng.c	spi: hisi-kunpeng: Delete the dump interface of data registers in debugfs	2024-05-17 11:50:47 +02:00
spi-hisi-sfc-v3xx.c	spi: hisi-sfc-v3xx: Return IRQ_NONE if no interrupts were detected	2024-03-01 13:21:44 +01:00
spi-img-spfi.c
spi-imx.c	spi: spi-imx: Fix pm_runtime_set_suspended() with runtime pm enabled	2024-10-17 15:11:33 +02:00
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 14:08:21 +02:00
spi-lp8841-rtc.c
spi-mem.c
spi-meson-spicc.c	spi: meson-spicc: do not rely on busy flag in pow2 clk ops	2022-10-26 12:34:42 +02:00
spi-meson-spifc.c
spi-mpc52xx-psc.c
spi-mpc52xx.c	spi: mpc52xx: Add cancel_work_sync before module remove	2024-12-14 19:51:30 +01:00
spi-mpc512x-psc.c
spi-mt65xx.c	spi: spi-mt65xx: Fix NULL pointer access in interrupt handler	2024-03-26 18:21:37 -04:00
spi-mt7621.c
spi-mtk-nor.c
spi-mux.c	spi: mux: set ctlr->bits_per_word_mask	2024-07-27 10:46:14 +02:00
spi-mxic.c
spi-mxs.c	spi-mxs: Fix chipselect glitch	2025-03-13 12:51:11 +01:00
spi-npcm-fiu.c	spi: npcm-fiu: Fix UMA reads when dummy.nbytes == 0	2023-11-08 17:26:47 +01:00
spi-npcm-pspi.c
spi-nxp-fspi.c	spi: nxp-fspi: fix the KASAN report out-of-bounds bug	2024-10-17 15:10:37 +02:00
spi-oc-tiny.c
spi-omap-100k.c	spi/omap100k:Fix PM disable depth imbalance in omap1_spi100k_probe	2022-10-26 12:34:46 +02:00
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 15:10:48 +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 11:13:00 +02:00
spi-rb4xx.c
spi-realtek-rtl.c
spi-rockchip-sfc.c	spi: spi-rockchip: Fix missing unwind goto in rockchip_sfc_probe()	2023-04-26 13:51:49 +02:00
spi-rockchip.c
spi-rpc-if.c
spi-rspi.c
spi-s3c24xx-regs.h
spi-s3c24xx.c
spi-s3c64xx.c	spi: s3c64xx: fix timeout counters in flush_fifo	2024-10-17 15:11:33 +02:00
spi-sc18is602.c
spi-sh-hspi.c
spi-sh-msiof.c	spi: sh-msiof: Fix maximum DMA transfer size	2025-06-27 11:05:10 +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.c	spi: stm32: Don't warn about spurious interrupts	2024-06-16 13:39:51 +02:00
spi-sun4i.c	spi: spi-sun4i: fix early activation	2025-06-04 14:38:08 +02:00
spi-sun6i.c	spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain	2023-10-06 13:18:15 +02:00
spi-synquacer.c	spi: synquacer: Fix timeout handling in synquacer_spi_transfer_one()	2023-03-10 09:39:31 +01:00
spi-tegra20-sflash.c	spi: tegra20-sflash: fix to check return value of platform_get_irq() in tegra_sflash_probe()	2023-09-19 12:22:32 +02:00
spi-tegra20-slink.c	spi: tegra: Fix missing IRQ check in tegra_slink_probe()	2023-11-20 11:08:16 +01:00
spi-tegra114.c
spi-tegra210-quad.c	spi: tegra210-quad: Avoid shift-out-of-bounds	2024-12-14 19:50:49 +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()	2025-03-13 12:49:53 +01:00
spi-zynqmp-gqspi.c	spi: zynqmp-gqspi: Always acknowledge interrupts	2025-06-04 14:38:04 +02:00
spi.c	spi: Fix acpi deferred irq probe	2024-12-14 19:51:15 +01:00
spidev.c	spi: spidev: Add missing spi_device_id for jg10309-01	2024-10-17 15:10:40 +02:00