Pull SoC driver updates from Arnd Bergmann:
"The driver updates again are all over the place with many minor fixes
going into platform specific code. The most notable changes are:
- Support for Microchip pic64gx system controllers
- Work on cleaning up devicetree bindings for SoC drivers, and
converting them into the new format
- Lots of smaller changes for Qualcomm SoC drivers, including support
for a number of newly supported chips
- reset controller API cleanups and a new driver for Cix Sky1
- Reworks of the Tegra PMC and CBB drivers, along with a change to
how individual Tegra SoCs get selected in Kconfig and BPMP firmware
driver updates including a refresh of the ABI header to match the
version used by firmware
- STM32 updates to the firewall bus driver and support for the debug
bus through OP-TEE
- SCMI firmware driver improvements for reliability, in particular
for dealing with broken firmware interrupts
- Memory driver updates for Tegra, and a patch to remove the unused
Baikal T1 driver"
* tag 'soc-drivers-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (193 commits)
firmware: arm_ffa: Use the correct buffer size during RXTX_MAP
firmware: qcom: scm: Allow QSEECOM on Lenovo IdeaCentre Mini X
clk: spear: fix resource leak in clk_register_vco_pll()
reset: rzv2h-usb2phy: Add support for VBUS mux controller registration
reset: rzv2h-usb2phy: Convert to regmap API
dt-bindings: reset: renesas,rzv2h-usb2phy: Document RZ/G3E USB2PHY reset
dt-bindings: reset: renesas,rzv2h-usb2phy: Add '#mux-state-cells' property
soc: microchip: add mpfs gpio interrupt mux driver
dt-bindings: soc: microchip: document PolarFire SoC's gpio interrupt mux
gpio: mpfs: Add interrupt support
soc: qcom: ubwc: add helpers to get programmable values
soc: qcom: ubwc: add helper to get min_acc length
firmware: qcom: scm: Register gunyah watchdog device
soc: qcom: socinfo: Add SoC ID for SA8650P
dt-bindings: arm: qcom,ids: Add SoC ID for SA8650P
firmware: qcom: scm: Allow QSEECOM on Mahua CRD
soc: qcom: wcnss: simplify allocation of req
soc: qcom: pd-mapper: Add support for Eliza
soc: qcom: aoss: compare against normalized cooling state
soc: qcom: llcc: fix v1 SB syndrome register offset
...
Add support for interrupts to the PolarFire SoC GPIO driver. Each GPIO
has an independent interrupt that is wired to an interrupt mux that sits
between the controllers and the PLIC. The SoC has more GPIO lines than
connections from the mux to the PLIC, so some GPIOs must share PLIC
interrupts. The configuration is not static and is set at runtime,
conventionally by the platform's firmware. CoreGPIO, the version
intended for use in the FPGA fabric has two interrupt output ports, one
is IO_NUM bits wide, as is used in the hardened cores, and the other is
a single bit with all lines ORed together.
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
A number of GPIO drivers that used to have a CONFIG_OF_GPIO dependency now fail
to build on targets without CONFIG_OF:
WARNING: unmet direct dependencies detected for GPIO_SYSCON
Depends on [n]: GPIOLIB [=y] && HAS_IOMEM [=y] && MFD_SYSCON [=y] && OF [=n]
Selected by [y]:
- GPIO_SAMA5D2_PIOBU [=y] && GPIOLIB [=y] && HAS_IOMEM [=y] && MFD_SYSCON [=y] && (ARCH_AT91 || COMPILE_TEST [=y])
drivers/gpio/gpio-mt7621.c: In function 'mediatek_gpio_bank_probe':
drivers/gpio/gpio-mt7621.c:254:20: error: 'struct gpio_chip' has no member named 'of_gpio_n_cells'
254 | rg->chip.gc.of_gpio_n_cells = 2;
| ^
drivers/gpio/gpio-tegra186.c: In function 'tegra186_gpio_of_xlate':
drivers/gpio/gpio-tegra186.c:502:25: error: 'struct gpio_chip' has no member named 'of_gpio_n_cells'
502 | if (WARN_ON(chip->of_gpio_n_cells < 2))
| ^~
drivers/gpio/gpio-lpc32xx.c: In function 'lpc32xx_gpio_probe':
drivers/gpio/gpio-lpc32xx.c:523:49: error: 'struct gpio_chip' has no member named 'of_xlate'
523 | lpc32xx_gpiochip[i].chip.of_xlate = lpc32xx_of_xlate;
| ^
drivers/gpio/gpio-spacemit-k1.c: In function 'spacemit_gpio_add_bank':
drivers/gpio/gpio-spacemit-k1.c:234:11: error: 'struct gpio_chip' has no member named 'of_gpio_n_cells'
234 | gc->of_gpio_n_cells = 3;
| ^~
Bring that back as a dependency.
Fixes: 7803501e57 ("gpio: drop unneeded Kconfig dependencies on OF_GPIO")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260325100144.1696731-1-arnd@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
OF_GPIO is selected automatically on all OF systems. Any symbols it
controls also provide stubs so there's really no reason to select it
explicitly. Remove all Kconfig dependencies/selects for GPIO drivers.
For those that have no other dependencies: convert it to requiring
CONFIG_OF instead to avoid new symbols popping up in make config.
Link: https://patch.msgid.link/20260316-gpio-of-kconfig-v2-3-de2f4b00a0e4@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Add a GPIO IRQ chip implementation for the kempld GPIO controller. Of
note is only how the parent IRQ is obtained.
The IRQ for the GPIO controller can be configured in the BIOS, along
with the IRQ for the I2C controller. These IRQ are returned by ACPI
but this information is only usable if both IRQ are configured. When
only one is configured, only one is returned making it impossible to
know which one it is.
Luckily the BIOS will set the configured IRQ in the PLD registers, so
it can be read from there instead, and that also work on platforms
without ACPI.
The vendor driver allowed to override the IRQ using a module
parameters, so there are boards in field which used this parameter
instead of properly configuring the BIOS. This implementation provides
this as well for compatibility.
Signed-off-by: Alban Bedel <alban.bedel@lht.dlh.de>
Link: https://patch.msgid.link/20260311143120.2179347-5-alban.bedel@lht.dlh.de
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
The ROHM BD72720 has 6 pins which may be configured as GPIOs. The
GPIO1 ... GPIO5 and EPDEN pins. The configuration is done to OTP at the
manufacturing, and it can't be read at runtime. The device-tree is
required to tell the software which of the pins are used as GPIOs.
Keep the pin mapping static regardless the OTP. This way the user-space
can always access the BASE+N for GPIO(N+1) (N = 0 to 4), and BASE + 5
for the EPDEN pin. Do this by setting always the number of GPIOs to 6,
and by using the valid-mask to invalidate the pins which aren't configured
as GPIOs.
First two pins can be set to be either input or output by OTP. Direction
can't be changed by software. Rest of the pins can be set as outputs
only. All of the pins support generating interrupts.
Support the Input/Output state getting/setting and the output mode
configuration (open-drain/push-pull).
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://patch.msgid.link/22e095ca92f0677ca3d3a768ad749629fc3c2006.1765804226.git.mazziesaccount@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
Add a new driver which provides a 1-to-many mapping for a single real
GPIO using a multiplexer. Each virtual GPIO corresponds to a multiplexer
state which, if set for the multiplexer, connects the real GPIO to the
corresponding virtual GPIO.
This can help in various usecases. One practical case is the special
hardware design of the Realtek-based XS1930-10 switch from Zyxel. It
features two SFP+ ports/cages whose signals are wired directly to the
switch SoC. Although Realtek SoCs are short on GPIOs, there are usually
enough the fit the SFP signals without any hacks.
However, Zyxel did some weird design and connected RX_LOS, MOD_ABS and
TX_FAULT of one SFP cage onto a single GPIO line controlled by a
multiplexer (the same for the other SFP cage). The single multiplexer
controls the lines for both SFP and depending on the state, the
designated 'signal GPIO lines' are connected to one of the three SFP
signals.
Because the SFP core/driver doesn't support multiplexer but needs single
GPIOs for each of the signals, this driver fills the gap between both.
It registers a gpio_chip, provides multiple virtual GPIOs and sets the
backing multiplexer accordingly.
Due to several practical issues, this is input-only and doesn't support
IRQs.
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
Reviewed-by: Thomas Richard <thomas.richard@bootlin.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20251227180134.1262138-3-jelonek.jonas@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Selecting OF_GPIO is generally not allowed, it always gets enabled
when both GPIOLIB and OF are turned on.
The tb10x driver now warns about this after it was enabled for
compile-testing:
WARNING: unmet direct dependencies detected for OF_GPIO
Depends on [n]: GPIOLIB [=y] && OF [=n] && HAS_IOMEM [=y]
Selected by [y]:
- GPIO_TB10X [=y] && GPIOLIB [=y] && HAS_IOMEM [=y] && (ARC_PLAT_TB10X || COMPILE_TEST [=y])
OF_GPIO is not required for compile-testing and is already enabled
when the driver is usable, so just drop the 'select' line.
Fixes: 682fbb18e1 ("gpio: tb10x: allow building the module with COMPILE_TEST=y")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20251205095429.1291866-1-arnd@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
The regmap drivers need to be selected by each user, without that there
can be configurations that fail to link:
x86_64-linux-ld: drivers/gpio/gpio-qixis-fpga.o: in function `qixis_cpld_gpio_probe':
gpio-qixis-fpga.c:(.text+0x13a): undefined reference to `__devm_regmap_init_mmio_clk'
Fixes: e88500247d ("gpio: add QIXIS FPGA GPIO controller")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20251204094928.1031494-1-arnd@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Add a virtual GPIO proxy driver which arbitrates access to a single
shared GPIO by multiple users. It works together with the core shared
GPIO support from GPIOLIB and functions by acquiring a reference to a
shared GPIO descriptor exposed by gpiolib-shared and making sure that
the state of the GPIO stays consistent.
In general: if there's only one user at the moment: allow it to do
anything as if this was a normal GPIO (in essence: just propagate calls
to the underlying real hardware driver). If there are more users: don't
allow to change the direction set by the initial user, allow to change
configuration options but warn about possible conflicts and finally:
treat the output-high value as a reference counted, logical "GPIO
enabled" setting, meaning: the GPIO value is set to high when the first
user requests it to be high and back to low once the last user stops
"voting" for high.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20251112-gpio-shared-v4-4-b51f97b1abd8@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This module scans the device tree (for now only OF nodes are supported
but care is taken to make other fwnode implementations easy to
integrate) and determines which GPIO lines are shared by multiple users.
It stores that information in memory. When the GPIO chip exposing shared
lines is registered, the shared GPIO descriptors it exposes are marked
as shared and virtual "proxy" devices that mediate access to the shared
lines are created. When a consumer of a shared GPIO looks it up, its
fwnode lookup is redirected to a just-in-time machine lookup that points
to this proxy device.
This code can be compiled out on platforms which don't use shared GPIOs.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20251112-gpio-shared-v4-3-b51f97b1abd8@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Last user of linux/gpio/legacy-of-mm-gpiochip.h is gone.
Remove linux/gpio/legacy-of-mm-gpiochip.h and
CONFIG_OF_GPIO_MM_GPIOCHIP
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Remove legacy-of-mm-gpiochip.h header file. The above mentioned
file provides an OF API that's deprecated. There is no agnostic
alternatives to it and we have to open code the logic which was
hidden behind of_mm_gpiochip_add_data(). Note, most of the GPIO
drivers are using their own labeling schemas and resource retrieval
that only a few may gain of the code deduplication, so whenever
alternative is appear we can move drivers again to use that one.
[Text copied from commit 34064c8267 ("powerpc/8xx: Drop
legacy-of-mm-gpiochip.h header")]
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Add support for the GPIO controller found on some QIXIS FPGAs in
Layerscape boards such as LX2160ARDB and LS1046AQDS. This driver is
using gpio-regmap.
A GPIO controller has a maximum of 8 lines (all found in the same
register). Even within the same controller, the GPIO lines' direction is
fixed, which mean that both input and output lines are found in the same
register. This is why the driver also passed to gpio-regmap the newly
added .fixed_direction_output bitmap to represent the true direction of
the lines.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Michael Walle <mwalle@kernel.org> # for the gpio-regmap part
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Pull USB / Thunderbolt updates from Greg KH:
"Here is the big set of USB and thunderbolt drivers for 6.18-rc1. It
was another normal development cycle, with lots of the usual drivers
getting updates:
- Thunderbolt driver cleanups and additions
- dwc3 driver updates
- dwc2 driver updates
- typec driver updates
- xhci driver updates and additions
- offload USB engine updates for better power management
- unused tracepoint removals
- usb gadget fixes and updates as more users start to rely on these
drivers instead of the "old" function gadget drivers
- new USB device ids
- other minor driver USB driver updates
- new USB I/O driver framework and driver additions"
The last item, the usb i/o driver, has an i2c and gpio driver added
through this tree. Those drivers were acked by the respective
subsystem maintainers.
All of these have been in linux-next for a while"
* tag 'usb-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (132 commits)
usb: vhci-hcd: Prevent suspending virtually attached devices
USB: serial: option: add SIMCom 8230C compositions
thunderbolt: Fix use-after-free in tb_dp_dprx_work
usb: xhci: align PORTSC trace with one-based port numbering
usb: xhci: correct indentation for PORTSC tracing function
usb: xhci: improve TR Dequeue Pointer mask
usb: xhci-pci: add support for hosts with zero USB3 ports
usb: xhci: Update a comment about Stop Endpoint retries
Revert "usb: xhci: Avoid Stop Endpoint retry loop if the endpoint seems Running"
usb: gadget: f_rndis: Refactor bind path to use __free()
usb: gadget: f_ecm: Refactor bind path to use __free()
usb: gadget: f_acm: Refactor bind path to use __free()
usb: gadget: f_ncm: Refactor bind path to use __free()
usb: gadget: Introduce free_usb_request helper
usb: gadget: Store endpoint pointer in usb_request
usb: host: xhci-rcar: Add Renesas RZ/G3E USB3 Host driver support
usb: host: xhci-plat: Add .post_resume_quirk for struct xhci_plat_priv
usb: host: xhci-rcar: Move R-Car reg definitions
dt-bindings: usb: Document Renesas RZ/G3E USB3HOST
usb: gadget: f_fs: Fix epfile null pointer access after ep enable.
...
Pull gpio updates from Bartosz Golaszewski:
"There are two new drivers and support for more models in existing
ones.
The generic GPIO API has been reworked and all users converted
which allowed us to move the fields specific to the generic GPIO
implementation out of the high-level struct gpio_chip into its own
structure that wraps the gpio_chip.
Other than that, there's nothing too exciting. Mostly minor tweaks and
fixes all over the place, some refactoring and some small new features
in helper modules.
GPIO core:
- add support for sparse pin ranges to the glue between GPIO and
pinctrl
- use a common prefix across all GPIO descriptor flags for improved
namespacing
New drivers:
- add new GPIO driver for the Nuvoton NCT6694
- add new GPIO driver for MAX7360
Driver improvements:
- add support for Tegra 256 to the gpio-tegra186 driver
- add support for Loongson-2K0300 to the gpio-loongson-64bit driver
- refactor the gpio-aggregator module to expose its GPIO forwarder
API to other in-kernel users (to enable merging of a new pinctrl
driver that uses it)
- convert all remaining drivers to using the modernized generic GPIO
chip API and remove the old interface
- stop displaying global GPIO numbers in debugfs output of controller
drivers
- extend the gpio-regmap helper with a new config option and improve
its support for GPIO interrupts
- remove redundant fast_io parameter from regmap configs in GPIO
drivers that already use MMIO regmaps which imply it
- add support for a new model in gpio-mmio: ixp4xx expansion bus
- order includes alphabetically in a few drivers for better
readability
- use generic device properties where applicable
- use devm_mutex_init() where applicable
- extend build coverage of drivers by enabling more to be compiled
with COMPILE_TEST enabled
- allow building gpio-stmpe as a module
- use dev_err_probe() where it makes sense in drivers
Late driver fixes:
- fix setting GPIO direction to output in gpio-mpfs
Documentation:
- document the usage of software nodes with GPIO chips
Device-tree bindings:
- Add DT bindings documents for new hardware: Tegra256, MAX7360
- Document a new model in Loongson bindings: LS2K0300
- Document a new model using the generic GPIO binding: IXP4xx
- Convert the DT binding for fsl,mxs-pinctrl to YAML
- fix the schema ID in the "trivial" GPIO schema
- describe GPIO hogs in the generic GPIO binding"
* tag 'gpio-updates-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (122 commits)
gpio: mpfs: fix setting gpio direction to output
gpio: generic: move GPIO_GENERIC_ flags to the correct header
gpio: generic: rename BGPIOF_ flags to GPIO_GENERIC_
gpio: nomadik: fix the debugfs helper stub
MAINTAINERS: Add entry on MAX7360 driver
input: misc: Add support for MAX7360 rotary
input: keyboard: Add support for MAX7360 keypad
gpio: max7360: Add MAX7360 gpio support
gpio: regmap: Allow to provide init_valid_mask callback
gpio: regmap: Allow to allocate regmap-irq device
pwm: max7360: Add MAX7360 PWM support
pinctrl: Add MAX7360 pinctrl driver
mfd: Add max7360 support
dt-bindings: mfd: gpio: Add MAX7360
rtc: Add Nuvoton NCT6694 RTC support
hwmon: Add Nuvoton NCT6694 HWMON support
watchdog: Add Nuvoton NCT6694 WDT support
can: Add Nuvoton NCT6694 CANFD support
i2c: Add Nuvoton NCT6694 I2C support
gpio: Add Nuvoton NCT6694 GPIO support
...
Pull powerpc updates from Madhavan Srinivasan:
- powerpc support for BPF arena and arena atomics
- Patches to switch to msi parent domain (per-device MSI domains)
- Add a lock contention tracepoint in the queued spinlock slowpath
- Fixes for underflow in pseries/powernv msi and pci paths
- Switch from legacy-of-mm-gpiochip dependency to platform driver
- Fixes for handling TLB misses
- Introduce support for powerpc papr-hvpipe
- Add vpa-dtl PMU driver for pseries platform
- Misc fixes and cleanups
Thanks to Aboorva Devarajan, Aditya Bodkhe, Andrew Donnellan, Athira
Rajeev, Cédric Le Goater, Christophe Leroy, Erhard Furtner, Gautam
Menghani, Geert Uytterhoeven, Haren Myneni, Hari Bathini, Joe Lawrence,
Kajol Jain, Kienan Stewart, Linus Walleij, Mahesh Salgaonkar, Nam Cao,
Nicolas Schier, Nysal Jan K.A., Ritesh Harjani (IBM), Ruben Wauters,
Saket Kumar Bhaskar, Shashank MS, Shrikanth Hegde, Tejas Manhas, Thomas
Gleixner, Thomas Huth, Thorsten Blum, Tyrel Datwyler, and Venkat Rao
Bagalkote.
* tag 'powerpc-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (49 commits)
powerpc/pseries: Define __u{8,32} types in papr_hvpipe_hdr struct
genirq/msi: Remove msi_post_free()
powerpc/perf/vpa-dtl: Add documentation for VPA dispatch trace log PMU
powerpc/perf/vpa-dtl: Handle the writing of perf record when aux wake up is needed
powerpc/perf/vpa-dtl: Add support to capture DTL data in aux buffer
powerpc/perf/vpa-dtl: Add support to setup and free aux buffer for capturing DTL data
docs: ABI: sysfs-bus-event_source-devices-vpa-dtl: Document sysfs event format entries for vpa_dtl pmu
powerpc/vpa_dtl: Add interface to expose vpa dtl counters via perf
powerpc/time: Expose boot_tb via accessor
powerpc/32: Remove PAGE_KERNEL_TEXT to fix startup failure
powerpc/fprobe: fix updated fprobe for function-graph tracer
powerpc/ftrace: support CONFIG_FUNCTION_GRAPH_RETVAL
powerpc64/modules: replace stub allocation sentinel with an explicit counter
powerpc64/modules: correctly iterate over stubs in setup_ftrace_ool_stubs
powerpc/ftrace: ensure ftrace record ops are always set for NOPs
powerpc/603: Really copy kernel PGD entries into all PGDIRs
powerpc/8xx: Remove left-over instruction and comments in DataStoreTLBMiss handler
powerpc/pseries: HVPIPE changes to support migration
powerpc/pseries: Enable hvpipe with ibm,set-system-parameter RTAS
powerpc/pseries: Enable HVPIPE event message interrupt
...
This controller's input and output logic is similar to previous
generations of SoCs. Additionally, it's capable of interrupt masking,
and could be configured to detect levels and edges, and is supplied with
a distinct reset signal.
The interrupt functionality is implemented through an irqchip, whose
operations are written with previous generation SoCs in mind and could
be reused. Since all Loongson SoCs with similar interrupt capability
(LS2K1500, LS2K2000) support byte-control mode, these operations are for
byte-control mode only for simplicity.
Signed-off-by: Yao Zi <ziyao@disroot.org>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250904013438.2405-3-ziyao@disroot.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Remove legacy-of-mm-gpiochip.h header file. The above mentioned
file provides an OF API that's deprecated. There is no agnostic
alternatives to it and we have to open code the logic which was
hidden behind of_mm_gpiochip_add_data(). Note, most of the GPIO
drivers are using their own labeling schemas and resource retrieval
that only a few may gain of the code deduplication, so whenever
alternative is appear we can move drivers again to use that one.
[text copied from commit 34064c8267 ("powerpc/8xx:
Drop legacy-of-mm-gpiochip.h header")]
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/9652736ef05b94d9113ea5ce7899734ef82343d1.1755520794.git.christophe.leroy@csgroup.eu
A few drivers that use the legacy GPIOLIB interfaces can be enabled
even when GPIOLIB is disabled entirely. With my previous patch this
now causes build failures like:
drivers/nfc/s3fwrn5/uart.c: In function 's3fwrn82_uart_parse_dt':
drivers/nfc/s3fwrn5/uart.c💯14: error: implicit declaration of function 'gpio_is_valid'; did you mean 'uuid_is_valid'? [-Werror=implicit-function-declaration]
These did not show up in my randconfig tests because randconfig almost
always has GPIOLIB selected by some other driver, and I did most
of the testing with follow-up patches that address the failures
properly.
Move the symbol outside of the 'if CONFIG_GPIOLIB' block for the moment
to avoid the build failures. It can be moved back and turned off by
default once all the driver specific changes are merged.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202507261934.yIHeUuEQ-lkp@intel.com/
Fixes: 678bae2eaa ("gpiolib: make legacy interfaces optional")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20250726211053.2226857-1-arnd@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
