kernel/linux.git/drivers/soc/tegra, branch v7.2-rc1

Merge tag 'soc-drivers-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2026-06-17T18:21:40+00:00

Pull SoC driver updates from Arnd Bergmann: "There are a few added drivers, but mostly the normal maintenance to drivers for firmware, memory controller and other soc specific hardware: - The NXP QuickEngine gets modern MSI support, which allows some cleanups to the GICv3 irqchip chip driver - A new SoC specific driver for the Renesas R-Car MFIS unit is added, encapsulating support for the on-chip mailbox and hwspinlock implementations that are not easily separated into individual drivers - The Qualcomm SoC drivers add support for additional SoC implementations, and flexibility around power management for the serial-engine driver as well as probing the LLCC driver using custom hardware descriptions inside of the device itself. - Added support for the Samsung thermal management unit - A cleanup to the Tegra 'PMC' driver interfaces to remove legacy APIs and allow multiple PMC instances everywhere. - Updates to the TI SCI and KNAS drivers to improve suspend/resume support. - Minor driver changes for mediatek, xilinx, allwinner, aspeed, tegra, broadcom, amd, microchip and starfive specific drivers - Memory controller updates for Tegra and Renesas for additional SoC types and other improvements. - Firmware driver updates for Arm FF-A, SMCCC and SCMI interfaces, to update driver probing, object lifetimes and address minor bugs" * tag 'soc-drivers-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (189 commits) Revert "firmware: zynqmp: Add dynamic CSU register discovery and sysfs interface" Revert "Documentation: ABI: add sysfs interface for ZynqMP CSU registers" memory: tegra234: drop dead NULL check in tegra234_mc_icc_aggregate() memory: tegra264: drop redundant tegra264_mc_icc_aggregate() memory: tegra186-emc: stop borrowing MC aggregate hook for EMC soc: aspeed: cleanup dead default for ASPEED_SOCINFO firmware: tegra: bpmp: Add support for multi-socket platforms firmware: tegra: bpmp: Propagate debugfs errors soc/tegra: pmc: Add Tegra238 support soc/tegra: pmc: Restrict power-off handler to Nexus 7 soc/tegra: pmc: Populate powergate debugfs only when needed soc/tegra: pmc: Move legacy code behind CONFIG_ARM guard soc/tegra: pmc: Remove unused legacy functions soc/tegra: pmc: Create PMC context dynamically firmware: samsung: acpm: remove compile-testing stubs firmware: samsung: acpm: Add devm_acpm_get_by_phandle helper firmware: samsung: acpm: Add TMU protocol support firmware: samsung: acpm: Make acpm_ops const and access via pointer firmware: samsung: acpm: Drop redundant _ops suffix in acpm_ops members firmware: samsung: acpm: Annotate rx_data->cmd with __counted_by_ptr ...

Merge tag 'tegra-for-7.2-pmc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers

2026-06-09T14:21:04+00:00

soc/tegra: pmc: Changes for v7.2-rc1 The bulk of these changes converts existing users to the modern variants of the API that take a PMC instance as argument. This completes the transition to multi-instance support, which then makes room for cleanups and restricting the remaining legacy APIs to 32-bit platforms. Some changes in this set also clean up powergate debugfs and restrict the power-off handler to be installed only where appropriate. Lastly, support for Tegra238 is added. * tag 'tegra-for-7.2-pmc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: soc/tegra: pmc: Add Tegra238 support soc/tegra: pmc: Restrict power-off handler to Nexus 7 soc/tegra: pmc: Populate powergate debugfs only when needed soc/tegra: pmc: Move legacy code behind CONFIG_ARM guard soc/tegra: pmc: Remove unused legacy functions soc/tegra: pmc: Create PMC context dynamically usb: xhci: tegra: Explicitly specify PMC instance to use PCI: tegra: Explicitly specify PMC instance to use media: vde: Explicitly specify PMC instance to use drm/tegra: Explicitly specify PMC instance to use drm/nouveau: tegra: Explicitly specify PMC instance to use ata: ahci_tegra: Explicitly specify PMC instance to use Signed-off-by: Arnd Bergmann

soc/tegra: cbb: Move driver registration from pure_initcall to core_initcall

2026-06-08T21:27:25+00:00

Commit "driver core: platform: set mod_name in driver registration" will set struct device_driver's mod_name member for platform driver registration. For a driver to be registered with its mod_name set, module_kset needs to be initialized, which currently happens in a subsys_initcall in param_sysfs_init(). The tegra cbb drivers register themselves before module_kset init, in a pure_initcall. This works currently because lookup_or_create_module_kobject(), which dereferences module_kset via kset_find_obj(), is not called if mod_name is not set, which is the case now. So in preparation for the commit "driver core: platform: set mod_name in driver registration", move tegra cbb driver registration to core_initcall level, and commit "kernel: param: initialize module_kset in a pure_initcall" will move module_kset init to pure_initcall level, ensuring module_kset init happens before tegra cbb driver registration. Suggested-by: Gary Guo Acked-by: Sumit Gupta Co-developed-by: Rahul Bukte Signed-off-by: Rahul Bukte Signed-off-by: Shashank Balaji Reviewed-by: Gary Guo Acked-by: Thierry Reding Link: https://patch.msgid.link/20260518-acpi_mod_name-v5-1-705ccc430885@sony.com Signed-off-by: Danilo Krummrich

soc/tegra: pmc: Add Tegra238 support

2026-05-31T05:21:15+00:00

The Tegra238 PMC is largely similar to that found on earlier chips, but not completely compatible. Add support for the PMC on Tegra238. Signed-off-by: Prathamesh Shete Signed-off-by: Thierry Reding

soc/tegra: pmc: Restrict power-off handler to Nexus 7

2026-05-31T05:21:14+00:00

The Tegra PMC power-off handler exists solely to reboot the Nexus 7 into a special bootloader mode when a USB cable is connected, so that the bootloader can display battery status instead of powering off. There is no reason to register it on any other Tegra board. Guard the registration behind of_machine_is_compatible("asus,grouper") and rename the handler to tegra_pmc_grouper_power_off_handler to make its scope explicit. The of_machine_is_compatible() check inside the handler itself is now redundant and is removed. This also avoids occupying SYS_OFF_PRIO_FIRMWARE on boards that have other handlers at that priority level. Assisted-by: Claude:claude-sonnet-4-6 Signed-off-by: Diogo Ivo Signed-off-by: Thierry Reding

soc/tegra: pmc: Populate powergate debugfs only when needed

2026-05-31T05:21:14+00:00

The 'powergate' debugfs node is used to show the state of the powergates but for some devices the 'num_powergates' is 0 and so it displays nothing. Therefore, only populate this debugfs entry for devices where num_powergates is greater than 0. Signed-off-by: Jon Hunter Signed-off-by: Thierry Reding

soc/tegra: pmc: Move legacy code behind CONFIG_ARM guard

2026-05-31T05:21:14+00:00

None of this legacy code is needed on 64-bit ARM devices, so it can be moved behind a corresponding preprocessor guard. This more cleanly separates out the legacy code from code needed on current platforms. Acked-by: Jon Hunter Signed-off-by: Thierry Reding

soc/tegra: pmc: Remove unused legacy functions

2026-05-31T05:21:14+00:00

All callers of these functions have been replaced by their variants taking a PMC context as an input, so they are no longer used and can be removed. Acked-by: Jon Hunter Signed-off-by: Thierry Reding

soc/tegra: pmc: Create PMC context dynamically

2026-05-31T05:21:14+00:00

For legacy purposes, an early PMC context is needed to support certain drivers and functionalities. However, when the PMC driver is probed in the later boot stages, the early context is no longer needed. Allocate the PMC context dynamically at probe time so that it can be used going forward. While at it, rename the early PMC context to more accurately reflect what it is used for. It's technically not only for early boot stages, but also to support some code that doesn't have a way of obtaining the correct context otherwise (e.g. no access to device tree). Acked-by: Jon Hunter Signed-off-by: Thierry Reding

soc/tegra: Use ARM SMCCC to get chip ID, revision, and platform info

2026-05-29T12:42:09+00:00

Tegra410 and Tegra241 deprecate the HIDREV register. The recommended method is to use ARM SMCCC to retrieve the chip ID, major and minor revisions, and platform information. Prefer ARM SMCCC when the platform supports it; fall back to HIDREV otherwise. Behavior on older Tegra SoCs that do not support ARM SMCCC remains unchanged. Signed-off-by: Kartik Rajput Signed-off-by: Thierry Reding