Changes in sysfs-class-spi-master

307b9ddbbcf987db77d52da6f9ff5b4096ac9599 - Merge tag 'spi-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Wed, 19 Aug 2026 18:47:41 +0200

Merge tag 'spi-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiPull spi updates from Mark Brown: "Along with a lot of driver specific work we've got a couple of core features here. The bigger one is that we've now got support for instantiating devices from sysfs similarly to how it's already done for I2C, this is used with development boards with non-enumerable expansion headers since SPI devices need to be manually specified. We also have support for the DQS signal on higher end flash devices. - Support for instantiating devices from sysfs, useful for development boards with non-enumerable plugin modules, from Vishwaroop A. - Support for DQS in spi-mem, an additional signal used by flash devices to avoid clock skew from Miquel Raynal. - Support for more advanced SPI modes on DesignWare controllers from Sudip Mukherjee. - Changes from Jisheng Zhang to update to modern methods of specifying the PM callbacks. - Fixes for DMA mapping error handling, plus KUnit tests for this, from Honghui Jiang. - Substantial cleanup and performance work in the nxp-spi driver. - Support for Microchip LAN969x, Nuvoton MA35D1 QSPI, Qualcomm SA8255p and SA8797P, and StarFive JHB100 SFC"* tag 'spi-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (132 commits) spi: Add KUnit coverage for DMA mapping error paths spi: Clear current DMA devices when unmapping a message spi: Move __spi_unmap_msg() before __spi_map_msg() spi: Fix DMA mapping ownership on partial map failure spi: dt-bindings: sun6i: Add compatibles for A733's SPI controllers spi: ma35d1-qspi: Use the existing update helper spi: ma35d1-qspi: Add DTR support spi: ma35d1-qspi: Allow several command bytes spi: ma35d1-qspi: Move speed setting to bus configuration spi: ma35d1-qspi: Remove redundant reset operation spi: dw: Remove shadowed dws in dw_spi_setup() spi: img-spfi: don't disable runtime PM on DMA deferred probe spi: mtk-nor: Propagate errors from IRQ request spi: mtk-nor: Propagate errors from optional IRQ lookup spi: spi-qpic-snand: Handle Macronix quad read opcode 0x6b spi: spi-qpic-snand: add quad mode support spi: spi-qpic-snand: move command mapping helper spi: hisi-sfc-v3xx: Propagate errors from optional IRQ lookup spi: meson-spifc: use devm_pm_runtime_set_active_enabled spi: sprd-adi: Fix probe succeeding without registering the controller ... List of files: /linux/Documentation/ABI/testing/sysfs-class-spi-master

a2d6aa3b84466b2b5bfb74e07eb5b0b308b7022d - spi: add new_device/delete_device sysfs interface

Thu, 06 Aug 2026 20:13:17 +0200

spi: add new_device/delete_device sysfs interfaceVishwaroop A says:Add I2C-style new_device/delete_device sysfs attributes to SPI hostcontrollers, allowing userspace to instantiate and remove SPI devicesat runtime without device-tree changes.Patch 1 adds the new_device/delete_device attributes and the supportinginfrastructure (userspace_clients list, manual sysfs group registration).Patch 2 adds the ABI and user-facing documentation.Link: https://lore.kernel.org/linux-spi/20260728191056.2337791-1-va@nvidia.com/ # v8Link: https://lore.kernel.org/linux-spi/20260728030541.2279518-1-va@nvidia.com/ # v7Link: https://lore.kernel.org/linux-spi/cover.1784000000.git.va@nvidia.com/ # v6Link: https://lore.kernel.org/linux-spi/20260517201602.498135-1-va@nvidia.com/ # v5Link: https://lore.kernel.org/linux-tegra/909f0c92-d110-4253-903e-5c81e21e12c9@nvidia.com/Link: https://patch.msgid.link/20260803104614.2548375-1-va@nvidia.com List of files: /linux/Documentation/ABI/testing/sysfs-class-spi-master

036d4b059be01eb67b65b03131855fc42153de6a - docs: spi: add documentation for userspace device instantiation

Mon, 03 Aug 2026 12:46:14 +0200

docs: spi: add documentation for userspace device instantiationDocument the new_device and delete_device sysfs attributes on SPIcontrollers: - Documentation/spi/instantiating-devices.rst: describes when and why this interface is needed, accepted parameters, usage examples, and limitations. - Documentation/ABI/testing/sysfs-class-spi-master: formal ABI entry for both attributes.Signed-off-by: Vishwaroop A Link: https://patch.msgid.link/20260803104614.2548375-3-va@nvidia.comSigned-off-by: Mark Brown List of files: /linux/Documentation/ABI/testing/sysfs-class-spi-master