kernel/linux.git/include/linux/firmware, branch v6.18.21

firmware: cs_dsp: Factor out common debugfs string read

2026-02-11T12:41:59+00:00

[ Upstream commit 78cfd833bc04c0398ca4cfc64704350aebe4d4c2 ] cs_dsp_debugfs_wmfw_read() and cs_dsp_debugfs_bin_read() were identical except for which struct member they printed. Move all this duplicated code into a common function cs_dsp_debugfs_string_read(). The check for dsp->booted has been removed because this is redundant. The two strings are set when the DSP is booted and cleared when the DSP is powered-down. Access to the string char * must be protected by the pwr_lock mutex. The string is passed into cs_dsp_debugfs_string_read() as a pointer to the char * so that the mutex lock can also be factored out into cs_dsp_debugfs_string_read(). wmfw_file_name and bin_file_name members of struct cs_dsp have been changed to const char *. It makes for a better API to pass a const pointer into cs_dsp_debugfs_string_read(). Signed-off-by: Richard Fitzgerald Link: https://patch.msgid.link/20251120130640.1169780-2-rf@opensource.cirrus.com Signed-off-by: Mark Brown Stable-dep-of: 10db9f6899dd ("firmware: cs_dsp: rate-limit log messages in KUnit builds") Signed-off-by: Sasha Levin

firmware: qcom: tzmem: fix qcom_tzmem_policy kernel-doc

2025-12-18T13:02:32+00:00

[ Upstream commit edd548dc64a699d71ea4f537f815044e763d01e1 ] Fix kernel-doc warnings by using correct kernel-doc syntax and formatting to prevent warnings: Warning: include/linux/firmware/qcom/qcom_tzmem.h:25 Enum value 'QCOM_TZMEM_POLICY_STATIC' not described in enum 'qcom_tzmem_policy' Warning: ../include/linux/firmware/qcom/qcom_tzmem.h:25 Enum value 'QCOM_TZMEM_POLICY_MULTIPLIER' not described in enum 'qcom_tzmem_policy' Warning: ../include/linux/firmware/qcom/qcom_tzmem.h:25 Enum value 'QCOM_TZMEM_POLICY_ON_DEMAND' not described in enum 'qcom_tzmem_policy' Fixes: 84f5a7b67b61 ("firmware: qcom: add a dedicated TrustZone buffer allocator") Signed-off-by: Randy Dunlap Link: https://lore.kernel.org/r/20251017191323.1820167-1-rdunlap@infradead.org Signed-off-by: Bjorn Andersson Signed-off-by: Sasha Levin

Merge tag 'soc-drivers-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2025-10-02T00:32:51+00:00

Pull SoC driver updates from Arnd Bergmann: "Lots of platform specific updates for Qualcomm SoCs, including a new TEE subsystem driver for the Qualcomm QTEE firmware interface. Added support for the Apple A11 SoC in drivers that are shared with the M1/M2 series, among more updates for those. Smaller platform specific driver updates for Renesas, ASpeed, Broadcom, Nvidia, Mediatek, Amlogic, TI, Allwinner, and Freescale SoCs. Driver updates in the cache controller, memory controller and reset controller subsystems. SCMI firmware updates to add more features and improve robustness. This includes support for having multiple SCMI providers in a single system. TEE subsystem support for protected DMA-bufs, allowing hardware to access memory areas that managed by the kernel but remain inaccessible from the CPU in EL1/EL0" * tag 'soc-drivers-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (139 commits) soc/fsl/qbman: Use for_each_online_cpu() instead of for_each_cpu() soc: fsl: qe: Drop legacy-of-mm-gpiochip.h header from GPIO driver soc: fsl: qe: Change GPIO driver to a proper platform driver tee: fix register_shm_helper() pmdomain: apple: Add "apple,t8103-pmgr-pwrstate" dt-bindings: spmi: Add Apple A11 and T2 compatible serial: qcom-geni: Load UART qup Firmware from linux side spi: geni-qcom: Load spi qup Firmware from linux side i2c: qcom-geni: Load i2c qup Firmware from linux side soc: qcom: geni-se: Add support to load QUP SE Firmware via Linux subsystem soc: qcom: geni-se: Cleanup register defines and update copyright dt-bindings: qcom: se-common: Add QUP Peripheral-specific properties for I2C, SPI, and SERIAL bus Documentation: tee: Add Qualcomm TEE driver tee: qcom: enable TEE_IOC_SHM_ALLOC ioctl tee: qcom: add primordial object tee: add Qualcomm TEE driver tee: increase TEE_MAX_ARG_SIZE to 4096 tee: add TEE_IOCTL_PARAM_ATTR_TYPE_OBJREF tee: add TEE_IOCTL_PARAM_ATTR_TYPE_UBUF tee: add close_context to TEE driver operation ...

firmware: qcom: scm: add support for object invocation

2025-09-15T13:42:53+00:00

Qualcomm TEE (QTEE) hosts Trusted Applications (TAs) and services in the secure world, accessed via objects. A QTEE client can invoke these objects to request services. Similarly, QTEE can request services from the nonsecure world using objects exported to the secure world. Add low-level primitives to facilitate the invocation of objects hosted in QTEE, as well as those hosted in the nonsecure world. If support for object invocation is available, the qcom_scm allocates a dedicated child platform device. The driver for this device communicates with QTEE using low-level primitives. Tested-by: Neil Armstrong Tested-by: Harshal Dev Signed-off-by: Amirreza Zarrabi Link: https://lore.kernel.org/r/20250911-qcom-tee-using-tee-ss-without-mem-obj-v12-2-17f07a942b8d@oss.qualcomm.com Signed-off-by: Bjorn Andersson

firmware: qcom: tzmem: export shm_bridge create/delete

2025-09-15T13:42:53+00:00

Anyone with access to contiguous physical memory should be able to share memory with QTEE using shm_bridge. Tested-by: Neil Armstrong Tested-by: Harshal Dev Reviewed-by: Kuldeep Singh Signed-off-by: Amirreza Zarrabi Link: https://lore.kernel.org/r/20250911-qcom-tee-using-tee-ss-without-mem-obj-v12-1-17f07a942b8d@oss.qualcomm.com Signed-off-by: Bjorn Andersson

firmware: imx: Add stub functions for SCMI CPU API

2025-09-11T01:59:08+00:00

To ensure successful builds when CONFIG_IMX_SCMI_CPU_DRV is not enabled, this patch adds static inline stub implementations for the following functions: - scmi_imx_cpu_start() - scmi_imx_cpu_started() - scmi_imx_cpu_reset_vector_set() These stubs return -EOPNOTSUPP to indicate that the functionality is not supported in the current configuration. This avoids potential build or link errors in code that conditionally calls these functions based on feature availability. Fixes: 1055faa5d660 ("firmware: imx: Add i.MX95 SCMI CPU driver") Reviewed-by: Cristian Marussi Signed-off-by: Peng Fan Signed-off-by: Shawn Guo

firmware: imx: Add stub functions for SCMI LMM API

2025-09-11T01:59:08+00:00

To ensure successful builds when CONFIG_IMX_SCMI_LMM_DRV is not enabled, this patch adds static inline stub implementations for the following functions: - scmi_imx_lmm_operation() - scmi_imx_lmm_info() - scmi_imx_lmm_reset_vector_set() These stubs return -EOPNOTSUPP to indicate that the functionality is not supported in the current configuration. This avoids potential build or link errors in code that conditionally calls these functions based on feature availability. Fixes: 7242bbf418f0 ("firmware: imx: Add i.MX95 SCMI LMM driver") Reviewed-by: Cristian Marussi Signed-off-by: Peng Fan Signed-off-by: Shawn Guo

firmware: imx: Add stub functions for SCMI MISC API

2025-09-11T01:59:07+00:00

To ensure successful builds when CONFIG_IMX_SCMI_MISC_DRV is not enabled, this patch adds static inline stub implementations for the following functions: - scmi_imx_misc_ctrl_get() - scmi_imx_misc_ctrl_set() These stubs return -EOPNOTSUPP to indicate that the functionality is not supported in the current configuration. This avoids potential build or link errors in code that conditionally calls these functions based on feature availability. This patch also drops the changes in commit 540c830212ed ("firmware: imx: remove duplicate scmi_imx_misc_ctrl_get()"). The original change aimed to simplify the handling of optional features by removing conditional stubs. However, the use of conditional stubs is necessary when CONFIG_IMX_SCMI_MISC_DRV is n, while consumer driver is set to y. This is not a matter of preserving legacy patterns, but rather to ensure that there is no link error whether for module or built-in. Fixes: 0b4f8a68b292 ("firmware: imx: Add i.MX95 MISC driver") Reviewed-by: Cristian Marussi Signed-off-by: Peng Fan Signed-off-by: Shawn Guo

Merge tag 'pmdomain-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

2025-07-29T18:42:31+00:00

Pull pmdomain updates from Ulf Hansson: "pmdomain core: - Leave powered-on genpds on until ->sync_state() or late_initcall_sync - Export a common ->sync_state() helper for genpd providers - Add generic ->sync_state() support - Add a bus/driver for genpd provider-devices - Introduce dev_pm_genpd_is_on() for consumers pmdomain providers: - cpuidle-psci: Drop redundant ->sync_state() support - cpuidle-riscv-sbi: Drop redundant ->sync_state() support - imx: Set ISI panic write for imx8m-blk-ctrl - qcom: Add support for Glymur and Milos RPMh power-domains - qcom: Use of_genpd_sync_state() for power-domains - rockchip: Add support for the RK3528 variant - samsung: Fix splash-screen handover by enforcing a ->sync_state() - sunxi: Add support for Allwinner A523's PCK600 power-controller - tegra: Opt-out from genpd's common ->sync_state() support for pmc - thead: Instantiate a GPU power sequencer via the auxiliary bus - renesas: Move init to postcore_initcalls - xilinx: Move ->sync_state() support to firmware driver - xilinx: Use of_genpd_sync_state() for power-domains pmdomain consumers: - remoteproc: imx_rproc: Fixup the detect/attach procedure for pre-booted cores" * tag 'pmdomain-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (44 commits) pmdomain: qcom: rpmhpd: Add Glymur RPMh Power Domains dt-bindings: power: rpmpd: Add Glymur power domains remoteproc: imx_rproc: detect and attach to pre-booted remote cores remoteproc: imx_rproc: skip clock enable when M-core is managed by the SCU pmdomain: core: introduce dev_pm_genpd_is_on() pmdomain: ti: Select PM_GENERIC_DOMAINS pmdomain: sunxi: sun20i-ppu: change to tristate and enable for ARCH_SUNXI pmdomain: sunxi: add driver for Allwinner A523's PCK-600 power controller pmdomain: sunxi: sun20i-ppu: add A523 support pmdomain: samsung: Fix splash-screen handover by enforcing a sync_state cpuidle: riscv-sbi: Drop redundant sync_state support cpuidle: psci: Drop redundant sync_state support pmdomain: core: Leave powered-on genpds on until sync_state pmdomain: core: Leave powered-on genpds on until late_initcall_sync pmdomain: core: Default to use of_genpd_sync_state() for genpd providers driver core: Add dev_set_drv_sync_state() pmdomain: core: Add common ->sync_state() support for genpd providers driver core: Export get_dev_from_fwnode() firmware: xilinx: Use of_genpd_sync_state() firmware: xilinx: Don't share zynqmp_pm_init_finalize() ...

Merge tag 'soc-drivers-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2025-07-29T18:13:27+00:00

Pull SoC driver updates from Arnd Bergmann: "Changes are all over the place, but very little sticks out as noteworthy. There is a new misc driver for the Raspberry Pi 5's RP1 multifunction I/O chip, along with hooking it up to the pinctrl and clk frameworks. The reset controller and memory subsystems have mainly small updates, but there are two new reset drivers for the K230 and VC1800B SoCs, and new memory driver support for Tegra264. The ARM SMCCC and SCMI firmware drivers gain a few more features that should help them be supported across more environments. Similarly, the SoC specific firmware on Tegra and Qualcomm get minor enhancements and chip support. In the drivers/soc/ directory, the ASPEED LPC snoop driver gets an overhaul for code robustness, the Tegra and Qualcomm and NXP drivers grow to support more chips, while the Hisilicon, Mediatek and Renesas drivers see mostly janitorial fixes" * tag 'soc-drivers-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (100 commits) bus: del unnecessary init var soc: fsl: qe: convert set_multiple() to returning an integer pinctrl: rp1: use new GPIO line value setter callbacks soc: hisilicon: kunpeng_hccs: Fix incorrect log information dt-bindings: soc: qcom: qcom,pmic-glink: document Milos compatible dt-bindings: soc: qcom,aoss-qmp: document the Milos Always-On Subsystem side channel dt-bindings: firmware: qcom,scm: document Milos SCM Firmware Interface soc: qcom: socinfo: Add support to retrieve APPSBL build details soc: qcom: pmic_glink: fix OF node leak soc: qcom: spmi-pmic: add more PMIC SUBTYPE IDs soc: qcom: socinfo: Add PM7550 & PMIV0108 PMICs soc: qcom: socinfo: Add SoC IDs for SM7635 family dt-bindings: arm: qcom,ids: Add SoC IDs for SM7635 family firmware: qcom: scm: request the waitqueue irq *after* initializing SCM firmware: qcom: scm: initialize tzmem before marking SCM as available firmware: qcom: scm: take struct device as argument in SHM bridge enable firmware: qcom: scm: remove unused arguments from SHM bridge routines soc: qcom: rpmh-rsc: Add RSC version 4 support memory: tegra: Add Tegra264 MC and EMC support firmware: tegra: bpmp: Fix build failure for tegra264-only config ...