- New driver and dt-bindings for Apple PMGR misc controls, which tweaks
various global power related states and saves about 1W of power on M1
Pro/Max/Ultra during s2idle.
- A small fix for device links in SART
Signed-off-by: Sven Peter <sven@kernel.org>
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Merge tag 'apple-soc-drivers-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/sven/linux into soc/drivers
Apple Soc driver updates for 7.3
- New driver and dt-bindings for Apple PMGR misc controls, which tweaks
various global power related states and saves about 1W of power on M1
Pro/Max/Ultra during s2idle.
- A small fix for device links in SART
Signed-off-by: Sven Peter <sven@kernel.org>
* tag 'apple-soc-drivers-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/sven/linux:
soc: apple: Add driver for Apple PMGR misc controls
dt-bindings: soc: apple: Add Apple PMGR misc controls
soc: apple: sart: require device link for consumers
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add SMEM parsing for DDR configuration data and use its highest bank
address bit to select the appropriate UBWC configuration.
Enable generic PAS trusted-zone APIs for the Iris and Venus media drivers.
Fix SCM probe retry state, reserved-memory cleanup, and an early IRQ-handler
NULL dereference. Enable QSEECOM EFI variable access on the Asus Zenbook A16.
Correct GENI firmware-size validation using the hardware CFG RAM depth and
correct the PMIC GLINK Thunderbolt extradata layout.
Document the Nord AOSS side channel and the IMEM minidump SRAM property.
Clean up Qualcomm statistics macros and the WCNSS binding schema.
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Merge tag 'qcom-drivers-for-7.3-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers
More Qualcomm driver updates for v7.3
Add SMEM parsing for DDR configuration data and use its highest bank
address bit to select the appropriate UBWC configuration.
Enable generic PAS trusted-zone APIs for the Iris and Venus media drivers.
Fix SCM probe retry state, reserved-memory cleanup, and an early IRQ-handler
NULL dereference. Enable QSEECOM EFI variable access on the Asus Zenbook A16.
Correct GENI firmware-size validation using the hardware CFG RAM depth and
correct the PMIC GLINK Thunderbolt extradata layout.
Document the Nord AOSS side channel and the IMEM minidump SRAM property.
Clean up Qualcomm statistics macros and the WCNSS binding schema.
* tag 'qcom-drivers-for-7.3-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
media: qcom: Switch to generic PAS TZ APIs
dt-bindings: soc: qcom,aoss-qmp: Document Nord AOSS side channel
dt-bindings: sram: qcom,imem: Add minidump-sram pattern property
soc: qcom: qcom_stats: Replace CLIENT_VOTES_OFFSET macro with sizeof()
soc: qcom: qcom_stats: Remove unused macro definitions
soc: qcom: ubwc: Get HBB from SMEM
soc: qcom: smem: Expose DDR data from SMEM
soc: qcom: smem: Use 'unsigned int' instead of 'unsigned'
firmware: qcom: scm: Fix tzmem state on probe retry
firmware: qcom: scm: Fix reserved memory cleanup on probe failure
firmware: qcom: scm: Fix NULL dereference in IRQ handler before __scm is published
firmware: qcom: scm: Allow QSEECOM on Asus Zenbook A16 (UX3607OA)
soc: qcom: geni-se: Use HW PROG_RAM_DEPTH to validate firmware size
soc: qcom: pmic_glink_altmode: Define the TBT extradata properly
dt-bindings: soc: qcom,wcnss: Drop redundant $ref of firmware-name property
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add Maili platform bindings for SCM, IMEM, AOSS, and PMIC GLINK. Add
Shikra IMEM, RPM SMD, LLCC, and UBWC support, including handling for
firmware-configured LLCC ECC interrupts.
Add the generic Peripheral Authentication Service with SCM and OP-TEE
backends, and migrate the MSM DRM and IPA drivers to it.
Add SCM SMC-call tracepoints and configurable minidump delivery through
always-on SRAM. Correct SCM download-mode pointer ordering and improve
download-mode probe diagnostics.
Rework the UBWC configuration database and add Milos and Shikra
configuration. Add protection-domain mappings for SA8775P and QCS8300,
support newer ICE versions, Hawi subsystem statistics, and SDM850
identification.
Simplify Qualcomm SoC Kconfig selection and architecture dependencies.
Use managed resources in EBI2 and RPMh RSC probe paths to correct cleanup
on failures.
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Merge tag 'qcom-drivers-for-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers
Qualcomm driver updates for v7.3
Add Maili platform bindings for SCM, IMEM, AOSS, and PMIC GLINK. Add
Shikra IMEM, RPM SMD, LLCC, and UBWC support, including handling for
firmware-configured LLCC ECC interrupts.
Add the generic Peripheral Authentication Service with SCM and OP-TEE
backends, and migrate the MSM DRM and IPA drivers to it.
Add SCM SMC-call tracepoints and configurable minidump delivery through
always-on SRAM. Correct SCM download-mode pointer ordering and improve
download-mode probe diagnostics.
Rework the UBWC configuration database and add Milos and Shikra
configuration. Add protection-domain mappings for SA8775P and QCS8300,
support newer ICE versions, Hawi subsystem statistics, and SDM850
identification.
Simplify Qualcomm SoC Kconfig selection and architecture dependencies.
Use managed resources in EBI2 and RPMh RSC probe paths to correct cleanup
on failures.
* tag 'qcom-drivers-for-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (44 commits)
soc: qcom: llcc: Skip ECC interrupt setup on Shikra, pre-configured by DSF
dt-bindings: sram: Document qcom,shikra-imem compatible
net: ipa: Switch to generic PAS TZ APIs
firmware: qcom: scm: Add minidump SRAM support
firmware: qcom: scm: use dev_err_probe() for dload address failure
firmware: qcom: scm: Fix missing smp_load_acquire()
dt-bindings: firmware: qcom,scm: Add minidump SRAM property
drm/msm: Switch to generic PAS TZ APIs
bus: qcom-ebi2: use managed resources for clocks and children
soc: qcom: rpmh-rsc: manage PM notifiers with devres
firmware: qcom: scm: Allow QSEECOM on Honor Magicbook Art 14
firmware: qcom: scm: instrument SMC call path with tracepoints
firmware: qcom: scm: add trace events for the SMC call interface
soc: qcom: Avoid SCM and SPM for cpuidle drivers
soc: qcom: Make important drivers default
soc: qcom: Restrict drivers per ARM/ARM64
soc: qcom: Hide all drivers behind selectable menu
MAINTAINERS: Add maintainer entry for Qualcomm PAS TZ service
firmware: qcom: Add a PAS TEE service
firmware: qcom_scm: Migrate to generic PAS service
...
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Just the one patch adding MODULE_DEVICE_TABLE() where it was previously missing.
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Merge tag 'aspeed-7.3-drivers-0' of https://git.kernel.org/pub/scm/linux/kernel/git/bmc/linux into soc/drivers
aspeed: First batch of driver changes for 7.3
Just the one patch adding MODULE_DEVICE_TABLE() where it was previously missing.
* tag 'aspeed-7.3-drivers-0' of https://git.kernel.org/pub/scm/linux/kernel/git/bmc/linux:
soc: aspeed: add missing MODULE_DEVICE_TABLE()
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Various small fixes for multi-socket devices, redundant error prints, a
Kconfig dependency as well as a patch to remove FUSE data as an entropy
source.
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Merge tag 'tegra-for-7.3-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers
soc/tegra: Changes for v7.3-rc1
Various small fixes for multi-socket devices, redundant error prints, a
Kconfig dependency as well as a patch to remove FUSE data as an entropy
source.
* tag 'tegra-for-7.3-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: Add PM dependency to SOC_TEGRA_PMC Kconfig
soc/tegra: fuse: Use device-specific instance in suspend/resume
soc/tegra: fuse: Do not use fuse data as entropy source
soc/tegra: cbb: Remove redundant dev_err()
soc/tegra: pmc: Don't register sys-off handler for multi-socket devices
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Switch qcom media client drivers over to generic PAS TZ APIs. Generic PAS
TZ service allows to support multiple TZ implementation backends like QTEE
based SCM PAS service, OP-TEE based PAS service and any further future TZ
backend service.
Reviewed-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Tested-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com> # Lemans
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260702115835.167602-10-sumit.garg@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The driver has an OF match table wired to .of_match_table, but does
not export the table with MODULE_DEVICE_TABLE().
Add the missing MODULE_DEVICE_TABLE(of, ...) entry so module alias
information is generated for OF based module autoloading.
This is a source-level fix. It does not claim dynamic hardware
reproduction; the evidence is the driver-owned match table, its use by
the platform driver, and the missing module alias publication.
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
kconfiglint reports:
K006: config SOC_TEGRA_PMC selects PM_GENERIC_DOMAINS which depends on PM,
but SOC_TEGRA_PMC does not depend on PM
SOC_TEGRA_PMC is an internal bool symbol (no prompt) that is selected by
ARCH_TEGRA_*_SOC options to enable the Power Management Controller driver.
It was originally introduced in commit 5e7d4c6529 ("soc/tegra: Implement
Tegra186 PMC support") as a bare `bool` with no
selects of its own.
Over time, additional selects were added:
- Commit 5098e2b95e ("soc/tegra: pmc: Select GENERIC_PINCONF") added
select GENERIC_PINCONF
- Commit 28dbe82310 ("soc/tegra: pmc: Select IRQ_DOMAIN_HIERARCHY") added
select IRQ_DOMAIN_HIERARCHY
- Commit f880ee9e96 ("soc/tegra: pmc: Add core power domain") added select PM_OPP and select PM_GENERIC_DOMAINS to
support core power domain voltage scaling
PM_GENERIC_DOMAINS is defined in kernel/power/Kconfig as:
config PM_GENERIC_DOMAINS
bool
depends on PM
When commit f880ee9e96 ("soc/tegra: pmc: Add core power domain") added
the select, it did not add a corresponding `depends on PM` to
SOC_TEGRA_PMC. This was not a functional problem because all callers of
SOC_TEGRA_PMC are inside `if ARCH_TEGRA` blocks, and both the ARM32
definition (arch/arm/mach-tegra/Kconfig) and the ARM64 definition
(arch/arm64/Kconfig.platforms) of ARCH_TEGRA select PM. Thus PM is always
enabled when SOC_TEGRA_PMC is selected in practice.
However, the dependency chain is implicit rather than explicit. Add
`depends on PM` to SOC_TEGRA_PMC to make the requirement explicit and
prevent a theoretical misconfiguration if SOC_TEGRA_PMC were ever selected
outside the ARCH_TEGRA context.
Assisted-by: Claude:claude-opus-4-6 kconfiglint
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Avoid using the default fuse instance in suspend/resume callbacks, as it
always runs the suspend/resume callbacks for the default instance rather
than the device’s own.
Get the correct fuse instance by using `dev_get_drvdata()`.
Signed-off-by: Kartik Rajput <kkartik@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Fuse values are static and device-unique but not secret. Using them as an
entropy source weakens the overall randomness pool because the data is
constant and externally observable over the device’s lifetime.
Stop feeding fuse data into the kernel’s randomness subsystem.
Signed-off-by: Kartik Rajput <kkartik@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The qcom,imem binding describes a single word in always-on SRAM shared
between the operating system (OS) and boot firmware. Before DDR is
initialized on the warm reset following a crash, firmware reads this
word to decide where to deliver the minidump, and the OS is expected to
select one of the destinations: either USB upload to a host PC or save
to on-device storage. If nothing is selected by the OS, USB is the
default.
Signed-off-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20260624190830.3131112-3-mukesh.ojha@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
CLIENT_VOTES_OFFSET (0x20) equals sizeof(struct sleep_stats), since
appended_stats immediately follows sleep_stats in the memory layout.
Replace the magic constant with sizeof(struct sleep_stats) to make
the layout relationship self-documenting and drop the macro.
No functional impact.
Assisted-by: Claude:claude-sonnet-4-6
Signed-off-by: Maulik Shah <maulik.shah@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260730-b4b4-removed-unused-macros-v1-2-2883fecb9e6e@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Remove macros that are defined but never used, as identified by
-Wunused-macros:
STAT_TYPE_OFFSET, COUNT_OFFSET, LAST_ENTERED_AT_OFFSET,
LAST_EXITED_AT_OFFSET, ACCUMULATED_OFFSET
No functional impact.
Assisted-by: Claude:claude-sonnet-4-6
Signed-off-by: Maulik Shah <maulik.shah@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260730-b4b4-removed-unused-macros-v1-1-2883fecb9e6e@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
To make sure the correct settings for a given DRAM configuration get
applied, attempt to retrieve that data from SMEM (which happens to be
what the BSP kernel does, albeit with through convoluted means of the
bootloader altering the DT with this data).
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260727-topic-smem_dramc-v5-3-66188b3e338d@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Most modern Qualcomm platforms (>= SM8150) expose information about the
DDR memory present on the system via SMEM.
Details from this information is used in various scenarios, such as
multimedia drivers configuring the hardware based on the "Highest Bank
address Bit" (hbb), or the list of valid frequencies in validation
scenarios...
Add support for parsing v3-v7 version of the structs. Unforunately,
they are not versioned, so some elbow grease is necessary to determine
which one is present. See for reference:
ver 3: 1d11897d2c
ver 4: f6e9aa5492
ver 5: 617d3297ab
ver 5 with 6regions: d770e009f9
ver 6: 62659b557f
ver 7: 734d95599c
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: 1d11897d2c
Link: https://lore.kernel.org/r/20260727-topic-smem_dramc-v5-2-66188b3e338d@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
checkpatch.pl reports:
WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
Convert the SMEM driver to use the less ambiguous type instead.
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260727-topic-smem_dramc-v5-1-66188b3e338d@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
qcom_tzmem_enable() returns -EBUSY if called a second time, but this
causes probe retries to fail permanently if a later step in
qcom_scm_probe() defers after qcom_tzmem_enable() has already succeeded.
Use DO_ONCE() to ensure qcom_tzmem_init() runs exactly once across all
calls in a thread-safe manner. qcom_tzmem_dev is set on every call since
probe retries use the same device pointer. The result of the first
initialisation is cached and returned to every subsequent caller.
Fixes: 40289e35ca ("firmware: qcom: scm: enable the TZ mem allocator")
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260724094939.613844-4-mukesh.ojha@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
of_reserved_mem_device_init() adds an entry to a global list with no
devres counterpart. If qcom_scm_probe() fails after the call the
assignment is never cleaned up. A probe retry would add a duplicate
entry, leaking the original one permanently.
Add an err_rmem label that calls of_reserved_mem_device_release() and
route all error paths after of_reserved_mem_device_init() through it.
of_reserved_mem_device_release() is safe to call unconditionally as it
simply walks an empty list when nothing was assigned.
Fixes: a33b2579c8 ("firmware: qcom: scm: add support for SHM bridge memory carveout")
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260724094939.613844-3-mukesh.ojha@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
In qcom_scm_probe(), devm_request_threaded_irq() is called before
smp_store_release(&__scm, scm). Two paths can dereference __scm before
it is published, both causing a NULL pointer dereference.
The IRQ handler receives scm via its data argument but passes only wq_ctx
to qcom_scm_waitq_wakeup() and qcom_scm_get_completion(), which then
dereference __scm directly. Thread scm through both functions so the IRQ
handler path never touches __scm.
Non-atomic SMC calls made during probe (e.g. from qcom_tzmem_init via
qcom_scm_shm_bridge_enable) can return WAITQ_SLEEP, causing
qcom_scm_wait_for_wq_completion() to run before __scm is published and
dereference it. Add platform_set_drvdata(pdev, scm) early in probe and
change qcom_scm_wait_for_wq_completion() to take the device pointer and
use dev_get_drvdata() to reach scm, removing any dependency on __scm.
Fixes: 6bf3259922 ("firmware: qcom: scm: Add wait-queue handling logic")
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260724094939.613844-2-mukesh.ojha@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
In line with other Glymur-based machines, the Asus Zenbook A16
(UX3607OA) exposes EFI variables through the "uefisecapp".
Add it to the QSEECOM allowlist to enable this access.
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260721-topic-a16_submission-v1-3-8ea213130d05@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The hardcoded MAX_GENI_CFG_RAMn_CNT limit is not accurate for all SoCs:
some targets have less CFG RAM than the constant implies, while others
like QCS615 need more entries than the old limit of 455 allowed, causing
valid firmware to be rejected at load time.
Rather than hardcoding a constant, read PROG_RAM_DEPTH from SE_HW_PARAM_2
at runtime to get the actual CFG RAM depth of the hardware instance and
use that as the upper bound for firmware size validation.
Fixes: d4bf06592a ("soc: qcom: geni-se: Add support to load QUP SE Firmware via Linux subsystem")
Cc: stable@vger.kernel.org
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260702-qup-se-increase-ram-cnt-v3-1-80b363373a5b@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Before the fixes-referenced commit, there was a trailing 'u32 reserved'
after the payload array. That commit gobbled it up into the thunderbolt
extradata. Push it back where it belongs.
There's no functional change, since the outer struct size remains
identical - struct usbc_sc8280x_tbt_data and therefore the union it's a
part of made up for the difference and the res bytes were ignored
anyway.
Fixes: 0539c5a6fd ("soc: qcom: pmic_glink_altmode: Consume TBT3/USB4 mode notifications")
Reported-by: Fenglin Wu <fenglin.wu@oss.qualcomm.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260717-topic-tbt_extradata_fixup-v1-1-5caa18f1c8d3@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The DT schema core defines the type ($ref) of 'firmware-name' property
as string-array, so individual schemas do not need to. They also should
not redefine it to a single string, but instead just set number of
expected firmware names.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20260712162212.184592-2-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This adds a fix for a missing error check in mtk-socinfo, and
also a missing MODULE_DEVICE_TABLE() in the mtk-dvfsrc driver.
Besides from that, this also reworks how the MMSYS tables are
specified with the macro, separating the component's hardware
instance from the actual type, resolving a prerequirement for
the restructuring of mediatek-drm.
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Merge tag 'mtk-soc-for-v7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux into soc/drivers
MediaTek SoC driver updates
This adds a fix for a missing error check in mtk-socinfo, and
also a missing MODULE_DEVICE_TABLE() in the mtk-dvfsrc driver.
Besides from that, this also reworks how the MMSYS tables are
specified with the macro, separating the component's hardware
instance from the actual type, resolving a prerequirement for
the restructuring of mediatek-drm.
* tag 'mtk-soc-for-v7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux:
soc: mediatek: add missing MODULE_DEVICE_TABLE()
soc: mediatek: mtk-mmsys: Use MMSYS_ROUTE() in default routing table
soc: mediatek: mtk-mmsys: Rework routes to specify component ID
soc: mediatek: mtk-socinfo Add error handling in devm_kasprintf()
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The driver has an OF match table wired to .of_match_table, but does
not export the table with MODULE_DEVICE_TABLE().
Add the missing MODULE_DEVICE_TABLE(of, ...) entry so module alias
information is generated for OF based module autoloading.
This is a source-level fix. It does not claim dynamic hardware
reproduction; the evidence is the driver-owned match table, its use by
the platform driver, and the missing module alias publication.
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
All of the mtk_mmsys_routes tables for all SoCs were converted to
use the MMSYS_ROUTE() macro but the default one used for MT2701,
MT2712 and SoCs from that generation was not: convert this one as
well.
This brings no functional change.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
In preparation for a refactoring of multimedia related MediaTek
drivers, including mmsys, mutex and mediatek-drm, rework all of
the MMSYS routes to specify a hardware component instance number
(or "SubID") alongside the hardware component type.
This also is one step of preparation towards the removal of the
catch-all mtk_ddp_comp_id enumeration and towards the migration
from a predefined-coupling static hardware component IDSubID
mapping (carrying around a very long enumeration and also some
multiple big arrays in mediatek-drm) to a more flexible map of
Component ID (Type) decoupled from Component SubID (HW Instance)
as then, anyway, techniques to handle components are always the
same on a type basis.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
1. Fix very old leak of OF node in PMU driver.
2. Few cleanups and new bindings for ExynosAutov920 HSI0 syscon.
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Merge tag 'samsung-drivers-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/drivers
Samsung SoC drivers for v7.3
1. Fix very old leak of OF node in PMU driver.
2. Few cleanups and new bindings for ExynosAutov920 HSI0 syscon.
* tag 'samsung-drivers-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
dt-bindings: samsung: exynos-pmu: Narrow allowed reboot modes
dt-bindings: samsung: exynos-pmu: Restrict children with unevaluatedProperties
dt-bindings: soc: samsung: exynos-sysreg: Add hsi0 for ExynosAutov920
soc: samsung: exynos-pmu: fix of_node refcount leak in exynos_get_pmu_regmap()
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
1. Few improvements: STM32 OMM, Tegra MC and JZ4780-nemc.
2. Refactor Tegra MC interconnect code to better represent actual
hardware in multi-socket NUMA cases.
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Merge tag 'memory-controller-drv-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into soc/drivers
Memory controller drivers for v7.3
1. Few improvements: STM32 OMM, Tegra MC and JZ4780-nemc.
2. Refactor Tegra MC interconnect code to better represent actual
hardware in multi-socket NUMA cases.
* tag 'memory-controller-drv-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
memory: jz4780-nemc: Use dev_err_probe() for clock error
memory: tegra: Guard against NULL mc_regs in IRQ handler
memory: tegra: add multi-socket support to the memory interconnect
memory: stm32_omm: initialize ret in stm32_omm_set_amcr
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
A collection of SCMI core and transport fixes addressing resource
lifetimes, teardown races and error handling. Most of these issues
are reported by Sashiko as existing issues while reviewing new feature
additions to SCMI.
The changes:
- publish channel state before mailbox and SMC callbacks can run,
- quiesce notification work before tearing down transport channels,
- fix partial channel setup and mailbox allocation cleanup,
- make IDR iteration and shared-channel teardown safe,
- correct SCMI device, OF node, handle, bus ID and SystemPower lifetimes;,
- harden requested-device registration and removal against races and
partial failures,
- reject out-of-range DT protocol IDs, and
- simplify notification allocations using flexible arrays.
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Merge tag 'scmi-updates-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers
Arm SCMI updates/fixes for v7.3
A collection of SCMI core and transport fixes addressing resource
lifetimes, teardown races and error handling. Most of these issues
are reported by Sashiko as existing issues while reviewing new feature
additions to SCMI.
The changes:
- publish channel state before mailbox and SMC callbacks can run,
- quiesce notification work before tearing down transport channels,
- fix partial channel setup and mailbox allocation cleanup,
- make IDR iteration and shared-channel teardown safe,
- correct SCMI device, OF node, handle, bus ID and SystemPower lifetimes;,
- harden requested-device registration and removal against races and
partial failures,
- reject out-of-range DT protocol IDs, and
- simplify notification allocations using flexible arrays.
* tag 'scmi-updates-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: (25 commits)
firmware: arm_scmi: Unrequest devices if driver registration fails
firmware: arm_scmi: Roll back partial protocol table registration
firmware: arm_scmi: Fix requested device removal race
firmware: arm_scmi: Fix transport device teardown lookup
firmware: arm_scmi: Fix SCMI device destroy lifetimes
firmware: arm_scmi: Unwind P2A receiver mailbox setup failure
firmware: arm_scmi: Unwind TX receiver mailbox setup failure
firmware: arm_scmi: Fix OF node reference handling
firmware: arm_scmi: Clear SystemPower flag on create failure
firmware: arm_scmi: Drop handle on protocol bind failures
firmware: arm_scmi: Protect device request lookup with RCU
firmware: arm_scmi: Use channel ID for transport teardown
firmware: arm_scmi: Reject out of range DT protocol IDs
firmware: arm_scmi: Avoid IDR updates while cleaning channels
firmware: arm_scmi: Free transport channel on IDR failure
firmware: arm_scmi: Clean up channels on setup failure
firmware: arm_scmi: Quiesce notifications before teardown
firmware: arm_scmi: Unregister device notifier before IDR teardown
firmware: arm_scmi: Publish channel state before callbacks
firmware: arm_scmi: Simplify notification allocations
...
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The driver has an OF match table wired to .of_match_table, but does
not export the table with MODULE_DEVICE_TABLE().
Add the missing MODULE_DEVICE_TABLE(of, ...) entry so module alias
information is generated for OF based module autoloading.
This is a source-level fix. It does not claim dynamic hardware
reproduction; the evidence is the driver-owned match table, its use by
the platform driver, and the missing module alias publication.
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Message-ID: <20260704122324.80274-1-pengpeng@iscas.ac.cn>
Signed-off-by: Linus Walleij <linusw@kernel.org>
The driver has an OF match table wired to .of_match_table, but does
not export the table with MODULE_DEVICE_TABLE().
Add the missing MODULE_DEVICE_TABLE(of, ...) entry so module alias
information is generated for OF based module autoloading.
This is a source-level fix. It does not claim dynamic hardware
reproduction; the evidence is the driver-owned match table, its use by
the platform driver, and the missing module alias publication.
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Message-ID: <20260704121851.63805-1-pengpeng@iscas.ac.cn>
Signed-off-by: Linus Walleij <linusw@kernel.org>
scmi_driver_register() requests protocol devices before registering the
driver. If driver_register() fails, those requests remain in the global
IDR and retain pointers to the module's ID table. Once the failed module
load releases that storage, later request matching or SCMI device creation
can dereference the stale pointers.
Unrequest the complete protocol table before returning the registration
failure. At this point table registration succeeded, so every entry is
owned by the current registration attempt.
Fixes: d3cd7c525f ("firmware: arm_scmi: Refactor protocol device creation")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Link: https://patch.msgid.link/20260722173521.2184378-2-sudeep.holla@kernel.org
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
scmi_protocol_table_register() can leave earlier requests registered when
a later entry in the same ID table fails. Each request retains a pointer
to the driver's ID table, so a failed module load can leave a dangling
pointer after the module storage is released.
Unrequest only the successfully registered prefix, in reverse order,
before returning the failure. Leave the failed entry and the remaining
entries untouched because matching requests can be owned by another
driver.
Fixes: 2858f6e5f0 ("firmware: arm_scmi: Add multiple protocols registration support")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Link: https://patch.msgid.link/20260722173521.2184378-1-sudeep.holla@kernel.org
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
scmi_protocol_device_unrequest() drops scmi_requested_devices_mtx while
notifying listeners but continues to retain the per-protocol list head.
When two SCMI drivers for the same protocol unregister concurrently, one
thread can remove the final request and free the list head while the other
is running its notifier. The latter then dereferences the freed list head
after reacquiring the mutex and can free it a second time.
Complete the list and IDR updates, including freeing an empty list head,
before dropping the mutex. Keep the blocking notifier outside the critical
section and retain only the detached request across the callback.
Fixes: d3cd7c525f ("firmware: arm_scmi: Refactor protocol device creation")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Link: https://patch.msgid.link/20260722095250.2011630-1-sudeep.holla@kernel.org
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
On Shikra, the DDR System Firmware (DSF) configures ECC interrupt
routing before the kernel driver probes — it enables Tag/Data RAM
interrupts and programs error thresholds in the LLCC interrupt-enable
registers.
Set irq_configured in shikra_cfg so that qcom_llcc_edac_probe() skips
calling qcom_llcc_core_setup(), which would otherwise overwrite the
firmware-managed register state with redundant writes.
Signed-off-by: Faiyaz Mohammed <faiyaz.mohammed@oss.qualcomm.com>
Reviewed-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Reviewed-by: Komal Bajaj <komal.bajaj@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260713-shikra-edac-v2-1-22fcb3ca9fb9@qti.qualcomm.com
[bjorn: Changed subject prefix]
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
knav_queue_probe() creates the global qmss debugfs file whose show
callback reads the global knav_qdev state. knav_queue_remove() tears
down the queue manager resources but leaves the debugfs file published.
Save the debugfs dentry in struct knav_device and remove it during
teardown before the resources used by the show callback are released.
While touching the debugfs_create_file() call, spell the unchanged read-
only file mode as 0444.
Fixes: 41f93af900 ("soc: ti: add Keystone Navigator QMSS driver")
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://patch.msgid.link/20260706144706.96313-1-pengpeng@iscas.ac.cn
Signed-off-by: Nishanth Menon <nm@ti.com>
