kernel/linux.git/Documentation/devicetree/bindings/memory-controllers, branch v7.2-rc1

Merge tag 'devicetree-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2026-06-17T18:54:57+00:00

Pull devicetree updates from Rob Herring: "DT core: - Add support for handling multiple cells in "iommu-map" entries - Support only 1 entry in /reserved-memory "reg" entries. Support for more than 1 entry has been broken - Fix a UAF on alloc_reserved_mem_array() failure - Make "ibm,phandle" handling logic specific to PPC - Use memcpy() instead of strcpy() for known length strings - Ensure __of_find_n_match_cpu_property() handles malformed "reg" entries - Add various checks that expected strings are strings before accessing them - Drop redundant memset() when unflattening DT DT bindings: - Add a DTS style checker. Currently hooked up to dt_binding_check to check examples - Convert st,nomadik platform, ti,omap-dmm, and ti,irq-crossbar bindings to DT schema - Add Apple System Management Controller hwmon, Qualcomm Hamoa Embedded Controller, Qualcomm IPQ6018 PWM controller, fsl,mc1323, Samsung SOFEF01-M DDIC panel, Freescale i.MX53 Television Encoder, Samsung S2M series PMIC extcon, and MT6365 PMIC AuxADC schemas - Extend bindings for QCom Maili and Nord PDC, QCom Hali fastrpc, qcom,eliza-imem, qcom,oryon-1-5 CPU, and MT6365 Keys - Consolidate "sram" property definitions - Fix constraints on "nvmem" properties which only contain phandles and no arg cells - Another pass of fixing "phandle-array" constraints - Add Gira vendor prefix" * tag 'devicetree-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (50 commits) dt-bindings: interrupt-controller: qcom,pdc: Add Maili compatible string dt-bindings: interrupt-controller: ti,irq-crossbar: Convert to DT schema dt-bindings: vendor-prefixes: add Gira dt-bindings: embedded-controller: Add Qualcomm reference device EC description dt-bindings: pwm: add IPQ6018 binding dt-bindings: hwmon: Add Apple System Management Controller hwmon schema docs: dt: writing-schema: Clarify what is required in a schema of: Respect #{iommu,msi}-cells in maps of: Factor arguments passed to of_map_id() into a struct of: Add convenience wrappers for of_map_id() of: reserved_mem: zero total_reserved_mem_cnt if no valid /reserved-memory entry of: reserved_mem: handle NULL name in of_reserved_mem_lookup() dt-bindings: cache: l2c2x0: Add missing power-domains dt-bindings: interrupt-controller: renesas,r9a09g077-icu: Fix reg size in example dt-bindings: nvmem: consumer: Make 'nvmem' an array of one-item entries drivers/of/overlay: Use memcpy() to copy known length strings dt-bindings: add self-test fixtures for style checker dt-bindings: wire style checker into dt_binding_check scripts/jobserver-exec: propagate child exit status dt-bindings: add DTS style checker ...

dt-bindings: memory: renesas,rzg3e-xspi: Add RZ/T2H and RZ/N2H support

2026-05-24T19:05:15+00:00

Document xSPI controller found on the Renesas RZ/T2H and RZ/N2H SoCs. The xSPI IP on these SoCs is identical to that found on the RZ/G3E SoC. The RZ/G3E HW manual (Rev.1.15) references bridge channel 1 and its bits, however the hardware actually supports only a single bridge channel (channel 0), matching the RZ/T2H design. The references to channel 1 and its configuration bits will be corrected in a future revision of the HW manual. Update clock/reset constraints to handle the SoC differences. Signed-off-by: Lad Prabhakar Reviewed-by: Krzysztof Kozlowski Link: https://patch.msgid.link/20260515115202.1515577-2-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Krzysztof Kozlowski

dt-bindings: drop tab characters from DTS examples

2026-05-05T15:54:45+00:00

YAML literal block scalars cannot use tabs for indent. Replace tab separators (mostly between values and trailing /* ... */ comments) with single spaces. Signed-off-by: Daniel Golle Reviewed-by: Krzysztof Kozlowski Link: https://patch.msgid.link/2044ee0cac191c7be8b6e989fc3c99b24aa4cc5e.1777434096.git.daniel@makrotopia.org Signed-off-by: Rob Herring (Arm)

Merge branch 'for-v7.2/tegra114-mc-bindings' into mem-ctrl-next

2026-05-04T18:46:50+00:00

dt-bindings: memory: Document Tegra114 External Memory Controller

2026-05-04T18:45:47+00:00

Include Tegra114 support into existing Tegra124 EMC schema with the most notable difference being the amount of EMC timings and a few SoC unique entries. Signed-off-by: Svyatoslav Ryhel Reviewed-by: Rob Herring (Arm) Link: https://patch.msgid.link/20260427070312.81679-4-clamor95@gmail.com Signed-off-by: Krzysztof Kozlowski

dt-bindings: memory: Document Tegra114 Memory Controller

2026-05-04T18:45:46+00:00

Add Tegra114 support into existing Tegra124 MC schema with the most notable difference in the amount of EMEM timings. Each memory client has unique hardware ID, add these IDs. Signed-off-by: Svyatoslav Ryhel Reviewed-by: Rob Herring (Arm) Link: https://patch.msgid.link/20260427070312.81679-2-clamor95@gmail.com Signed-off-by: Krzysztof Kozlowski

dt-bindings: memory: tegra: Add nvidia,tegra238-mc compatible

2026-05-04T17:26:49+00:00

Document the device tree binding for the Tegra238 memory controller. Tegra238 has 8 memory controller channels plus broadcast and stream-id registers. Add the stream ID header (nvidia,tegra238-mc.h) defining ISO and NISO stream IDs for SMMU configuration. Signed-off-by: Ashish Mhetre Reviewed-by: Jon Hunter Link: https://patch.msgid.link/20260427073419.567360-2-amhetre@nvidia.com Signed-off-by: Krzysztof Kozlowski

dt-bindings: memory: tegra210: Mark EMC as cooling device

2026-03-27T15:25:44+00:00

The external memory controller found on Tegra210 can use throttling of the EMC frequency in order to reduce the memory chip temperature. Mark the memory controller as a cooling device to take advantage of this functionality. Reviewed-by: Rob Herring Signed-off-by: Thierry Reding

dt-bindings: memory: Add Tegra210 memory controller bindings

2026-03-27T15:25:44+00:00

Document the bindings for the memory controller found on Tegra210 SoCs. Reviewed-by: Rob Herring (Arm) Signed-off-by: Thierry Reding

Merge tag 'soc-dt-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2026-02-11T05:11:08+00:00

Pull SoC devicetree updates from Arnd Bergmann: "There are a handful of new SoCs this time, all of these are more or less related to chips in a wider family: - SpacemiT Key Stone K3 is an 8-core risc-v chip, and the first widely available RVA23 implementation. Note that this is entirely unrelated with the similarly named Texas Instruments K3 chip family that follwed the TI Keystone2 SoC. - The Realtek Kent family of SoCs contains three chip models rtd1501s, rtd1861b and rtd1920s, and is related to their earlier Set-top-box and NAS products such as rtd1619, but is built on newer Arm Cortex-A78 cores. - The Qualcomm Milos family includes the Snapdragon 7s Gen 3 (SM7635) mobile phone SoC built around Armv9 Kryo cores of the Arm Cortex-A720 generation. This one is used in the Fairphone Gen 6 - Qualcomm Kaanapali is a new SoC based around eight high performance Oryon CPU cores - NXP i.MX8QP and i.MX952 are both feature reduced versions of chips we already support, i.e. the i.MX8QM and i.MX952, with fewer CPU cores and I/O interfaces. As part of a cleanup, a number of SoC specific devicetree files got removed because they did not have a single board using the .dtsi files and they were never compile tested as a result: Samsung s3c6400, ST spear320s, ST stm32mp21xc/stm32mp23xc/stm32mp25xc, Renesas r8a779m0/r8a779m2/r8a779m4/r8a779m6/r8a779m7/r8a779m8/r8a779mb/ r9a07g044c1/r9a07g044l1/r9a07g054l1/r9a09g047e37, and TI am3703/am3715. All of these could be restored easily if a new board gets merged. Broadcom/Cavium/Marvell ThunderX2 gets removed along with its only machine, as all remaining users are assumed to be using ACPI based firmware. A relatively small number of 43 boards get added this time, and almost all of them for arm64. Aside from the reference boards for the newly added SoCs, this includes: - Three server boards use 32-bit ASpeed BMCs - One more reference board for 32-bit Microchip LAN9668 - 64-bit Arm single-board computers based on Amlogic s905y4, CIX sky1, NXP ls1028a/imx8mn/imx8mp/imx91/imx93/imx95, Qualcomm qcs6490/qrb2210 and Rockchip rk3568/rk3588s - Carrier board for SOMs using Intel agilex5, Marvell Armada 7020, NXP iMX8QP, Mediatek mt8370/mt8390 and rockchip rk3588 - Two mobile phones using Snapdragon 845 - A gaming device and a NAS box, both based on Rockchips rk356x On top of the newly added boards and SoCs, there is a lot of background activity going into cleanups, in particular towards getting a warning-free dtc build, and the usual work on adding support for more hardware on the previously added machines" * tag 'soc-dt-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (757 commits) dt-bindings: intel: Add Agilex eMMC support arm64: dts: socfpga: agilex: add emmc support arm64: dts: intel: agilex5: Add simple-bus node on top of dma controller node ARM: dts: socfpga: fix dtbs_check warning for fpga-region ARM: dts: socfpga: add #address-cells and #size-cells for sram node dt-bindings: altera: document syscon as fallback for sys-mgr arm64: dts: altera: Use lowercase hex dt-bindings: arm: altera: combine Intel's SoCFPGA into altera.yaml arm64: dts: socfpga: agilex5: Add IOMMUS property for ethernet nodes arm64: dts: socfpga: agilex5: add support for modular board dt-bindings: intel: Add Agilex5 SoCFPGA modular board arm64: dts: socfpga: agilex5: Add dma-coherent property arm64: dts: realtek: Add Kent SoC and EVB device trees dt-bindings: arm: realtek: Add Kent Soc family compatibles ARM: dts: samsung: Drop s3c6400.dtsi ARM: dts: nuvoton: Minor whitespace cleanup MAINTAINERS: Add Falcon DB arm64: dts: a7k: add COM Express boards ARM: dts: microchip: Drop usb_a9g20-dab-mmx.dtsi arm64: dts: rockchip: Fix rk3588 PCIe range mappings ...