Mahua TLMM block is identical to Glymur, but the PDC wake IRQ map
differs since PDC handles the interrupt for GPIO 155 instead of GPIO 143
as seen on Glymur. Hence add the Mahua-specific PDC map to the Glymur
TLMM driver.
Signed-off-by: Gopikrishna Garmidi <gopikrishna.garmidi@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Document the pinctrl compatible for the Mahua SoC, a 12-core variant
of Glymur. The PDC wake IRQ map differs since PDC handles the interrupt
for GPIO 155 instead of GPIO 143 as seen on Glymur.
Signed-off-by: Gopikrishna Garmidi <gopikrishna.garmidi@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Dual-voltage GPIO banks default to 3.3V operation. Even when a bank is
externally supplied with 1.8V, the internal logic remains in the 3.3V
domain, leading to functional failures.
Add support for programming the IO domain power control registers to
allow explicit configuration for 1.8V operation.
These registers are secure due to hardware safety constraints.
Specifically, configuring the domain for 1.8V while externally supplying
3.3V causes back-powering and potential pin damage. Consequently, access
requires unlocking the AIB Secure Access Register (ASAR) in the APBC
block before any read or write operation.
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
In order to access the protected IO power domain registers, a valid
unlock sequence must be performed by writing the required keys to the
AIB Secure Access Register (ASAR).
The ASAR register resides within the APBC register address space.
A corresponding syscon property is added to allow the pinctrl driver
to access this register.
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
st_pinconf_dbg_show() unlocks and locks the pinctrl_dev mutex, so it
must be called by the pinctrl core with the mutex hold. Annotate the
function with sparse __must_hold, so any changes in pinctrl locking will
be statically detected.
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Make the padctl functions a bit simpler by returning void instead of
always '0'. The callers - phy init/exit - still need to return 0, but
these are smaller function without if/branching.
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Simplify error handling (less code in error case) over locks with
guard().
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Simplify error handling (less gotos) over locks with guard() which also
removes possibility (at least by reading the code) of returning
uninitialized rc/ret value in aw9523_pconf_set() and
aw9523_gpio_get_multiple() functions.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Remove unused includes: no lists and mutexes.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Remove unused includes from internal headers, because they do not have
following: bit manipulations, mutexes, spinlocks and struct devices.
These headers are included by actual C files, which seem to have all
necessary includes.
Reviewed-by: Inochi Amaoto <inochiama@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Remove unused includes: no clocks, mutexes and resets.
Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Remove unused includes (no mutexes, string functions, no OF functions)
and bring directly used mod_devicetable.h (previously pulled via of.h).
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
pinctrl_bind_pins() is only used by driver core (as it should). Move it
out of the public header into base.h.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
- Add support for GPIO IRQs on RZ/T2H and RZ/N2H.
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Merge tag 'renesas-pinctrl-for-v6.20-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: renesas: Updates for v6.20
- Add support for GPIO IRQs on RZ/T2H and RZ/N2H.
Signed-off-by: Linus Walleij <linusw@kernel.org>
Fix a typo in DT documentation, it should describe the 3.3V drive strength
table of SpacemiT k3 SoC.
Fixes: 5adaa1a8c0 ("dt-bindings: pinctrl: spacemit: add K3 SoC support")
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Yixun Lan <dlan@gentoo.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
This function will check if the indicated function enumerator
i.e. the value set into bits 5 and 6 of the pin configuration
register, is zero and thus corresponds to the GPIO mode of the
pin.
This may be necessary to know since the pin controller is
flagged as "strict": once you set a pin *explicitly* to GPIO
mode using function 0, the core is unaware that this is
actually the GPIO mode, and clients may be denied to
retrieve the pin as a GPIO.
Currently none of the in-kernel device trees sets any pin to
GPIO mode, but this may happen any day.
Reviewed-by: Sven Peter <sven@kernel.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
It is discouraged to use the ambiguous "unsigned" type, use
explicit unsigned int in the driver.
Reviewed-by: Sven Peter <sven@kernel.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
The Renesas RZ/T2H (R9A09G077) and Renesas RZ/N2H (R9A09G087) SoCs have
IRQ-capable pins handled by the ICU, which forwards them to the GIC.
The ICU supports 16 IRQ lines, the pins map to these lines arbitrarily,
and the mapping is not configurable.
Add a GPIO IRQ chip to the pin controller that can be used to configure
these pins as IRQ lines.
The pin controller places the requested pins into IRQ function,
disabling GPIO mode. A hierarchical IRQ domain is used to forward other
functionality to the parent IRQ domain, the ICU. The ICU does level
translation and then forwards other functionality to the GIC.
Wakeup capability is implemented by placing the entire pin controller on
the wakeup path if any pins are requested to be wakeup-capable.
Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260109143910.645628-2-cosmin-gabriel.tanislav.xa@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add a dedicated compatible for the exynos9610-wakeup-eint node, which is
compatbile with Exynos850's implementation (and the Exynos7 fallback).
Signed-off-by: Alexandru Chimac <alex@chimac.ro>
Link: https://patch.msgid.link/20260102-exynos9610-pinctrl-v3-2-3f21f2cfb651@chimac.ro
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Discovering a phandle to an AST2400 or AST2600 LPC node indicates an
error for the purpose of the AST2500 pinctrl driver.
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
The Renesas RZ/T2H (R9A09G077) and Renesas RZ/N2H (R9A09G087) SoCs have
IRQ-capable pins handled by the ICU, which forwards them to the GIC.
The ICU supports 16 IRQ lines, the pins map to these lines arbitrarily,
and the mapping is not configurable.
Document the required properties to handle GPIO IRQ.
Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20251205150234.2958140-4-cosmin-gabriel.tanislav.xa@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Setting up an IRQ would normally be done in the .activate() and
.deactivate() ops of the IRQ domain, but for hierarchical IRQ domains
the .activate() and .deactivate() ops are overridden in the
gpiochip_hierarchy_setup_domain_ops() function.
As such, activating and deactivating need to be done in the .translate()
and .free() ops of the IRQ domain.
For RZ/T2H and RZ/N2H, interrupts go through the pin controller, into
the ICU, which level-translates them and forwards them to the GIC.
To use a GPIO as an interrupt it needs to be put into peripheral
function mode 0, which will connect it to the IRQ lines of the ICU.
The IRQ chip .child_to_parent_hwirq() callback is called as part of the
IRQ fwspec parsing logic (as part of irq_create_of_mapping()) which
happens before the IRQ is requested (as part of gpiochip_lock_as_irq()).
gpiochip_lock_as_irq() calls gpiod_get_direction() if the
.get_direction() callback is provided to ensure that the GPIO line is
set up as input.
In our case, IRQ function is separate from GPIO, and both cannot be true
at the same time.
Return GPIO_LINE_DIRECTION_IN even if pin is in IRQ function to allow
this setup to work.
Hold the spinlock to ensure atomicity between reading the PMC register
(which determines whether the pin is in GPIO mode or not) and reading
the function of the pin when it is not in GPIO mode.
Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20251205150234.2958140-3-cosmin-gabriel.tanislav.xa@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
GPIO is enabled or disabled in multiple places, simplify code by moving
this logic into a separate function.
Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20251205150234.2958140-2-cosmin-gabriel.tanislav.xa@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The GPIO controller is configured as non-sleeping but it uses generic
pinctrl helpers which use a mutex for synchronization. This will cause
lockdep splats when used together with shared GPIOs going through the
GPIO shared proxy driver.
Fixes: 6e9be3abb7 ("pinctrl: Add driver support for Amlogic SoCs")
Cc: stable@vger.kernel.org
Reported-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Closes: https://lore.kernel.org/all/CAFBinCAc7CO8gfNQakCu3LfkYXuyTd2iRpMRm8EKXSL0mwOnJw@mail.gmail.com/
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
We currently only build these drivers on ARM but there's nothing that
should stop us from building it with allmodconfig on other
architectures. Extend the build coverage for all meson drivers.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Add sama7d65 compatibility string.
Sama7d65 does not have a full last bank of PIO lines similar to the
Sama7g54 SoC. Sama7d65 only has 14 lines on the last PIO bank not the
full 32; adjusting the SoC attributes accordingly.
Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
The i.MX952 System Manager (SM) firmware supports the System Control
Management Interface (SCMI) pinctrl protocol, similar to the i.MX95 SM.
The base offset for the i.MX952 IOMUXC Daisy input register differs from
that of the i.MX95. Update the pinctrl-imx-scmi driver to add support for
i.MX952.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
i.MX94 has special muxing options for certain pins. Their mux settings
are not in IOMUXC module. i.MX System Manager Firmware includes new vendor
defined pinctrl type to SCMI pinctrl driver to handle these pins. The MUX
value field in the IOMUX table is extended to 16 bits where the lower 8
bits represent the current IOMUX value and the upper 8 bits represent the
new extended mux added in i.MX94.
Signed-off-by: Ranjani Vaidyanathan <ranjani.vaidyanathan@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
The pattern for pinmux node names is typically the peripheral name and
instance number, followed by pingroup name if there are multiple options.
Normally the instance number is directly appended to the peripheral
name, like "mmc0" or "i2c2". But if the peripheral name ends with a
number, then it becomes confusing.
On the A20, the PS2 interface controller has two instances. This
produces pinmux node names like "ps2-0-pins". Make the sub-pattern
"[0-9]-" valid to fit this pattern. Avoid having to confusing "ps20-pins"
name.
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
K3 SoC expand drive strength to 4 bits which support even larger
settings table comparing to old SoC generation. Also schmitter trigger
setting is changed to 1 bit.
Signed-off-by: Yixun Lan <dlan@gentoo.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
For the pinctrl IP of SpacemiT's K3 SoC, it has different register offset
comparing with previous SoC generation, so introduce a function to do the
pin to offset mapping. Also add all the pinctrl data.
Signed-off-by: Yixun Lan <dlan@gentoo.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Add new compatible string for SpacemiT K3 SoC, the pinctrl IP shares
almost same logic with previous K1 generation, but has different register
offset and pin configuration, for example the drive strength and
schmitter trigger settings has been changed.
Signed-off-by: Yixun Lan <dlan@gentoo.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
In order to better extend the pinctrl support for future new SoC, convert
drive strength setting from free form text to more standard schema format.
Signed-off-by: Yixun Lan <dlan@gentoo.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
mtk_eint_do_init() allocates several pointer arrays which are then
populated in a per-instance loop and freed on error. The arrays are
currently allocated with devm_kmalloc(), so their entries are left
uninitialised until the per-instance allocations succeed.
On a failure in the middle of the loop, the error path iterates over
the full nbase range and calls devm_kfree() on each element. For
indices which were never initialised, the corresponding array entries
contain stack garbage. If any of those happen to be non-zero,
devm_kfree() will pass them to devres_destroy(), which will WARN
because there is no matching devm_kmalloc() resource for such bogus
pointers.
Improve the robustness and readability by:
- Using devm_kcalloc() for the pointer arrays so that all entries
start as NULL, ensuring that only genuinely initialised elements
may be freed and preventing spurious WARN_ON()s in the error path.
- Switching the allocations to sizeof(*ptr) / sizeof(**ptr) forms,
avoiding hard-coded element types and making the code more resilient
to future type changes.
- Dropping the redundant NULL checks before devm_kfree(), as
devm_kfree() safely handles NULL pointers.
The functional behaviour in the successful initialisation path remains
unchanged, while the error handling becomes simpler and less
error-prone.
Reviewed-by: fanggeng <fanggeng@lixiang.com>
Signed-off-by: Liang Jie <liangjie@lixiang.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Enabling compile testing should not enable every individual driver (we
have "allyesconfig" for that) but two new drivers got this wrong.
Default to n instead of ARCH_MICROCHIP as these drivers are not needed
in every Microchip build either.
Fixes: 38cf9d6413 ("pinctrl: add pic64gx "gpio2" pinmux driver")
Fixes: 46397274da ("pinctrl: add polarfire soc iomux0 pinmux driver")
Cc: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
The only core fix is in doc; all the others are in drivers, with the
biggest impacts in libsas being the rollback on error handling and in
ufs coming from a couple of error handling fixes, one causing a crash
if it's activated before scanning and the other fixing W-LUN
resumption.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"The only core fix is in doc; all the others are in drivers, with the
biggest impacts in libsas being the rollback on error handling and in
ufs coming from a couple of error handling fixes, one causing a crash
if it's activated before scanning and the other fixing W-LUN
resumption"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: qcom: Fix confusing cleanup.h syntax
scsi: libsas: Add rollback handling when an error occurs
scsi: device_handler: Return error pointer in scsi_dh_attached_handler_name()
scsi: ufs: core: Fix a deadlock in the frequency scaling code
scsi: ufs: core: Fix an error handler crash
scsi: Revert "scsi: libsas: Fix exp-attached device scan after probe failure scanned in again after probe failed"
scsi: ufs: core: Fix RPMB link error by reversing Kconfig dependencies
scsi: qla4xxx: Use time conversion macros
scsi: qla2xxx: Enable/disable IRQD_NO_BALANCING during reset
scsi: ipr: Enable/disable IRQD_NO_BALANCING during reset
scsi: imm: Fix use-after-free bug caused by unfinished delayed work
scsi: target: sbp: Remove KMSG_COMPONENT macro
scsi: core: Correct documentation for scsi_device_quiesce()
scsi: mpi3mr: Prevent duplicate SAS/SATA device entries in channel 1
scsi: target: Reset t_task_cdb pointer in error case
scsi: ufs: core: Fix EH failure after W-LUN resume error
client from Max, a fix that hardens osdmap parsing code from myself
(marked for stable) and a few assorted fixups.
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Merge tag 'ceph-for-6.19-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"We have a patch that adds an initial set of tracepoints to the MDS
client from Max, a fix that hardens osdmap parsing code from myself
(marked for stable) and a few assorted fixups"
* tag 'ceph-for-6.19-rc1' of https://github.com/ceph/ceph-client:
rbd: stop selecting CRC32, CRYPTO, and CRYPTO_AES
ceph: stop selecting CRC32, CRYPTO, and CRYPTO_AES
libceph: make decode_pool() more resilient against corrupted osdmaps
libceph: Amend checking to fix `make W=1` build breakage
ceph: Amend checking to fix `make W=1` build breakage
ceph: add trace points to the MDS client
libceph: fix log output race condition in OSD client
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'smp-urgent-2025-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug fix from Ingo Molnar:
- Fix CPU hotplug callbacks to disable interrupts on UP kernels
* tag 'smp-urgent-2025-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu: Make atomic hotplug callbacks run with interrupts disabled on UP
