kernel/linux.git/drivers/spi/spi.c, branch v7.2-rc5

Merge tag 'spi-fix-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

2026-07-05T15:24:06+00:00

Pull spi fixes from Mark Brown: "A small set of fixes that came in since -rc1, we have one core fix for shutting down target mode properly if the system suspends while it's running plus a small set of fairly unremarkable device specific fixes. There's also a couple of pure DT binding changes for Renesas SoCs, the power domains one allows some SoCs to be correctly described with existing code" * tag 'spi-fix-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: rzv2h-rspi: Fix DMA transfer error handling for signal interruption spi: dt-bindings: snps,dw-apb-ssi: add 'power-domains' property spi: dt-bindings: snps,dw-apb-ssi: drop superfluous RZ/N1 entry spi: dw: use the correct error msg if request_irq() fails spi: dw: fix first spi transfer with dma always fallback to PIO spi: core: Abort active target transfer on controller suspend spi: sh-msiof: abort transfers when reset times out

Replace by more specific (c files)

2026-07-03T05:38:17+00:00

Replace the #include of by the more specific where applicable. For most cases the include can be dropped completely, only a few drivers need one or two headers added. Acked-by: Danilo Krummrich Acked-by: Takashi Sakamoto Acked-by: Bjorn Helgaas Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com Signed-off-by: Uwe Kleine-König (The Capable Hub)

Merge tag 'spi-fix-v7.2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

2026-06-26T18:18:49+00:00

Pull spi fixes from Mark Brown: "A fairly unremarkable collection of fixes that came in over the merge window, plus a new device ID for the DesignWare controller in the StarFive JHB100 SoC. There's a couple of core fixes included, one avoiding freeing an empty resource in error handling cases and another which fixes a NULL dereference which could be triggered by using an abnormal device registration flow like driver_override" * tag 'spi-fix-v7.2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: imx: reconfigure for PIO when DMA cannot be started spi: dw: Add support for snps,dwc-ssi-2.00a spi: dt-bindings: snps,dw-apb-ssi: Add starfive,jhb100-spi spi: rpc-if: Use correct device for hardware reinitialization on resume spi: acpi: Free resource list at appropriate time spi: dw: fix wrong BAUDR setting after resume spi: uniphier: Fix completion initialization order before devm_request_irq() spi: Add NULL check for spi_get_device_id() in spi_get_device_match_data()

spi: core: Abort active target transfer on controller suspend

2026-06-25T16:43:06+00:00

When an SPI controller operating in target mode has a transfer in progress at the time of system suspend, the suspend path proceeds without aborting the ongoing transfer. This can leave the hardware in an inconsistent state, potentially causing the system to hang or fail to resume cleanly. Fix this by invoking the controller's target_abort callback from spi_controller_suspend() when the controller is in target mode and the callback is registered. This ensures any active target transfer is cleanly terminated before the controller is suspended. Signed-off-by: Praveen Talari Link: https://patch.msgid.link/20260625-abort_active_transfer_duirng_s2r-v2-1-1d6f724406b6@oss.qualcomm.com Signed-off-by: Mark Brown

spi: acpi: Free resource list at appropriate time

2026-06-17T13:58:30+00:00

We do unneeded "double free" (emptying an empty list) in one case. This is not a critical issue at all, the fix just makes code robust against any possible future changes in the flow. Signed-off-by: Andy Shevchenko Link: https://patch.msgid.link/20260617092406.2649384-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown

spi: Add NULL check for spi_get_device_id() in spi_get_device_match_data()

2026-06-16T20:25:14+00:00

Prevent NULL pointer dereference when spi_get_device_id() returns NULL, which can happen when using driver_override without matching SPI ID entry. Signed-off-by: guoqi0226 Link: https://patch.msgid.link/20260616103018.105612-3-guoqi0226@163.com Signed-off-by: Mark Brown

Merge tag 'spi-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

2026-06-16T02:26:47+00:00

Pull spi updates from Mark Brown: "This has been quite a busy release, mainly due to the subsystem wide work Johan Hovold has done to modernise resource allocation for the subsystem on probe, the subsystem did some very clever allocation management pre devm which didn't quite mesh comfortably with managed allocations and made it far too easy to introduce error handling and removal bugs. - Cleanup and simplification of controller struct allocation, moving everything over to devm and making the devm APIs more robust, from Johan Hovold - Support for spi-mem devices that don't assert chip select and support for a secondary read command for memory mapped flashes, some commits for this are shared with mtd. - Support for SpacemiT K1" * tag 'spi-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (118 commits) spi: Fix mismatched DT property access types spi: xilinx: use FIFO occupancy register to determine buffer size spi: spi-mem: Fix spi_controller_mem_ops kdoc spi: xilinx: let transfers timeout in case of no IRQ spi: dt-bindings: nuvoton,npcm750-fiu: Convert to DT schema spi: meson-spifc: fix runtime PM leak on remove spi: Use named initializers for platform_device_id arrays spi: rzv2h-rspi: Add suspend/resume support spi: dw-pci: remove redundant pci_free_irq_vectors() calls spi: ep93xx: fix double-free of zeropage on DMA setup failure spi: cadence-xspi: Revert COMPILE_TEST support spi: cadence-xspi: Support 32bit and 64bit slave dma interface spi: tegra210-quad: Allocate DMA memory for DMA engine spi: imx: replace dmaengine_terminate_all() with dmaengine_terminate_sync() spi: fsl-lpspi: terminate the RX channel on TX prepare failure path spi: fsl-lpspi: replace dmaengine_terminate_all() with dmaengine_terminate_sync() spi: atmel: fix DMA channel and bounce buffer leaks spi: omap2-mcspi: Use of_device_get_match_data() spi: Use named initializers for arrays of i2c_device_data spi: aspeed: Replace VLA parameter with flat pointer in calibration helper ...

Revert "treewide: Fix probing of devices in DT overlays"

2026-05-22T11:33:58+00:00

This reverts commit 1a50d9403fb90cbe4dea0ec9fd0351d2ecbd8924. While the commit fixed fw_devlink overlay handling for one case, it broke it for another case. So revert it and redo the fix in a separate patch. Fixes: 1a50d9403fb9 ("treewide: Fix probing of devices in DT overlays") Reported-by: Herve Codina Closes: https://lore.kernel.org/lkml/CAMuHMdXEnSD4rRJ-o90x4OprUacN_rJgyo8x6=9F9rZ+-KzjOg@mail.gmail.com/ Closes: https://lore.kernel.org/all/20240221095137.616d2aaa@bootlin.com/ Closes: https://lore.kernel.org/lkml/20240312151835.29ef62a0@bootlin.com/ Signed-off-by: Saravana Kannan Link: https://lore.kernel.org/lkml/20240411235623.1260061-2-saravanak@google.com/ [Herve: Fix conflicts due to f72e77c33e4b ("device property: Make modifications of fwnode "flags" thread safe")] Signed-off-by: Herve Codina Acked-by: Mark Brown Acked-by: Rob Herring (Arm) Acked-by: Wolfram Sang # for I2C Link: https://patch.msgid.link/20260511155755.34428-2-herve.codina@bootlin.com Signed-off-by: Greg Kroah-Hartman

spi: Drop redundant 'cs' variable declaration in __spi_add_device()

2026-05-21T15:58:01+00:00

Remove the redundant local variable 'cs' definition declared within the chipselect GPIO configuration block. Signed-off-by: Lad Prabhakar Link: https://patch.msgid.link/20260520091342.68029-1-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Mark Brown

spi: fix controller registration API inconsistency

2026-05-21T11:25:55+00:00

The SPI controller API is asymmetric in that a controller is allocated and registered in two step, while it is freed as part of deregistration. [1] This is especially unfortunate as any driver data is freed along with the controller, something which has lead to use-after-free bugs during deregistration when drivers tear down resources after deregistering the controller (or tear down resources that may still be in use before deregistering the controller in an attempt to work around the API). To reduce the risk of such bugs being introduced a device managed allocation interface was added, but this arguably made things even less consistent as now whether the controller gets freed as part of deregistration depends on how it was allocated. [2][3] With most drivers converted to use managed allocation in preparation for fixing the API, the remaining 16 drivers can be converted in one tree-wide change. Ten of those drivers use the bitbang interface and can be converted by simply removing the extra reference already taken by spi_bitbang_start() (and updating the two bitbang drivers that use managed allocation). [4] Fix the API inconsistency by no longer dropping a reference when deregistering non-devres allocated controllers. [1] 68b892f1fdc4 ("spi: document odd controller reference handling") [2] 5e844cc37a5c ("spi: Introduce device-managed SPI controller allocation") [3] 3f174274d224 ("spi: fix misleading controller deregistration kernel-doc") [4] 702a4879ec33 ("spi: bitbang: Let spi_bitbang_start() take a reference to master") Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260521073816.766596-1-johan@kernel.org Signed-off-by: Mark Brown