20 Jan, 2021
1 commit
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This is a gpio driver to control the PINs which are managed by scu fw.
Signed-off-by: Shenwei Wang
04 Jan, 2021
1 commit
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This is the 5.10.4 stable release
* tag 'v5.10.4': (717 commits)
Linux 5.10.4
x86/CPU/AMD: Save AMD NodeId as cpu_die_id
drm/edid: fix objtool warning in drm_cvt_modes()
...Signed-off-by: Jason Liu
Conflicts:
drivers/gpu/drm/imx/dcss/dcss-plane.c
drivers/media/i2c/ov5640.c
30 Dec, 2020
1 commit
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[ Upstream commit 9d5522199505c761575c8ea31dcfd9a2a8d73614 ]
irqchip shared with multiple gpiochips, leads to recursive call of
gpiochip_irq_mask/gpiochip_irq_unmask which was assigned to
rqchip->irq_mask/irqchip->irq_unmask, these happens becouse of
only irqchip->irq_enable == gpiochip_irq_enable is checked.Let's add an additional check to make sure shared irqchip is detected
even if irqchip->irq_enable wasn't defined.Fixes: a8173820f441 ("gpio: gpiolib: Allow GPIO IRQs to lazy disable")
Signed-off-by: Nikita Shubin
Link: https://lore.kernel.org/r/20201210070514.13238-1-nikita.shubin@maquefel.me
Signed-off-by: Linus Walleij
Signed-off-by: Sasha Levin
14 Dec, 2020
16 commits
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gpio-vf610 is also used on i.MX platforms, so remove the dependency
of SOC_VF610 in case VF610 is not compiled.Reviewed-by: Peter Chen
Signed-off-by: Dong Aisheng -
Add runtime pm support to automatically enable the ipg clock and power
domain if present.To save power, suggest all sub-devices of the gpiochip/irq domain should
dynamically manage gpio/irq resources like:
gpio:
gpiod_request()
... //set gpio direction
gpiod_free()
irq:
devm_request_irq() //=> module active
devm_free_irq() //=>module is non-active or runtime idleSince the driver support irqchip and gpiochip, any irq/gpio resource
requested by other modules the gpio controller clock and power domain
should be enabled. And the irqchip's parent's clock and power also should
be enabled if irq resoruce requested.Signed-off-by: Fugang Duan
Tested-by: Guoniu.Zhou
Reviewed-by: Frank Li
[Arul: Fix merge conflicts]
Signed-off-by: Arulpandiyan Vadivel -
Remove redundant definition of IMX_SC_IRQ_GROUP_WAKE which is already
defined in include/linux/firmware/imx/sci.h to fix below coverity issue:CID 11172090 (#1 of 2): Parse warning (PW.BAD_MACRO_REDEF)
1. bad_macro_redef: incompatible redefinition of macro
"IMX_SC_IRQ_GROUP_WAKE" (declared at line 20 of
"./include/linux/firmware/imx/sci.h")Signed-off-by: Anson Huang
Reviewed-by: Jacky Bai -
Register gpio chip after rpmsg channel ready, otherwise consumer
might use gpio before rpmsg channel ready, and cause issue.Late register the gpio chip could let consumer use defer probe
correclty.Reported-by: Elven Wang
Reviewed-by: Fugang Duan
Signed-off-by: Peng Fan -
The shutdown function needed to make interrupt handler to be NULL
when kexec execute.Signed-off-by: Song Hui
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67b06ba0 ("PM: QoS: Drop PM_QOS_CPU_DMA_LATENCY and rename related functions")
changed the pm_qos_*() APIs. Updated the IMX usage of them to the new
APIs.Signed-off-by: Li Yang
Signed-off-by: Dong Aisheng -
The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have sizeof "6" and "7".This produces many oopses with CONFIG_KASAN=y:
BUG: KASAN: stack-out-of-bounds in imx_mu_send_data+0x108/0x1f0
It shouldn't cause an issues in normal use because these structs are
always allocated on the stack.Reported-by: Iuliana Prodan
Signed-off-by: Leonard Crestez
Reviewed-by: Jason Liu
Reviewed-by: Aisheng Dong -
Use platform_get_irq_optional() to avoid error message for the
optional irq.Fixes: 7723f4c5ecdb ("driver core: platform: Add an error message to platform_get_irq*()")
Signed-off-by: Fugang Duan -
If device node don't specify the vcc regulator that means the
regulator maybe always on, so it don't need to do regcache sync
after system resume back.The patch doesn't change other code logical.
Signed-off-by: Fugang Duan
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The pca953x type of devices, e.g. max7310, may have a reset which needs
to be handled to get the device start working. Add a device_reset()
call for that, and defer the probe if the reset controller for that is
not ready yet.The patch merge below two commits:
1a5c743f463f("MLK-11293: gpio: pca953x: add device_reset() call")
7500d014297a("MLK-13773 gpio: pca953x: correct device_reset() return
value check on kernel 4.1")Signed-off-by: Shawn Guo
Signed-off-by: Fugang Duan -
This patch enables gpio pin's pad wakeup function which
is supported by SCFW, with pad wakeup enabled, GPIO's
power is no need to be enabled after suspend, hence
save a sub-system's power.To enable pad wakeup, dtb needs to provide pad wakeup
number for each gpio port, and each pin has to provide
, they should be inside each gpio node,To enable pad wakeup, dtb needs to provide pad wakeup
number for each gpio port, and each pin has to provide
, they should be inside each gpio node,
this is for calling SCFW APIs to enable/disable pad wakeup,
example of adding GPIO4_22 pad wakeup in dtb:&lsio_gpio4 {
/* total pad wakeup number in gpio4 */
pad-wakeup-num = ;
/* SC_P_USDHC1_CD_B, SC_PAD_WAKEUP_LOW_LVL, LINE 22 */
pad-wakeup = ;
};Pad wakeup will be enabled after GPIO port suspend, and
once any pad wakes up system, gpio driver will get the
wakeup line and handles the event during noirq resume
phase.Signed-off-by: Anson Huang
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For some platform such as imx7D SDB, one pin of 74x164 to
control all peripheral power supply(PERI_3V_EN).
The pin should keep in high voltage level when 74x164 loading,
otherwise the module depend on PERI_3V3 will lose power.
So add new property registers-default into 74x164 driver.Signed-off-by: Sandor Yu
Signed-off-by: Fugang Duan
(cherry picked from commit: 61fe7af7e47dd8bf6acc91ceabd9e660d28de28a)
Signed-off-by: Arulpandiyan Vadivel -
Add gpio interrupt chip support that only support wakeup feature
by M4 core.Signed-off-by: Fugang Duan
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Add rpmsg virtual gpio driver support.
i.MX7ULP GPIO PTA and PTB resource are managed by M4 core, setup one
simple protocol with M4 core based on RPMSG virtual IO to let A core
access such GPIOs that is what the driver do.Signed-off-by: Fugang Duan
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Add output IOs defalut voltage set in device tree by add property like:
out-default = /bits/ 16 ;Reviewed-by: Haibo Chen
Signed-off-by: Fugang Duan
[ Aisheng: move dt binding changes to gpio-pca95xx.yaml.
Need further fine tune the property schema ]
Signed-off-by: Dong Aisheng -
Add device reset for max732x driver.
Signed-off-by: Fugang Duan
Acked-by: Gao Pan
Signed-off-by: Arulpandiyan Vadivel
09 Dec, 2020
1 commit
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EIC controller have unfixed numbers of banks on different Spreadtrum SoCs,
and each bank has its own base address, the loop of getting there base
address in driver should break if the resource gotten via
platform_get_resource() is NULL already. The later ones would be all NULL
even if the loop continues.Fixes: 25518e024e3a ("gpio: Add Spreadtrum EIC driver support")
Signed-off-by: Chunyan Zhang
Link: https://lore.kernel.org/r/20201209055106.840100-1-zhang.lyra@gmail.com
Signed-off-by: Linus Walleij
02 Dec, 2020
5 commits
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When mvebu_pwm_probe() fails IRQ domain is not released. Move pwm probe
before IRQ domain allocation. Add pwm cleanup code to the failure path.Fixes: 757642f9a584 ("gpio: mvebu: Add limited PWM support")
Reported-by: Andrew Lunn
Signed-off-by: Baruch Siach
Signed-off-by: Bartosz Golaszewski -
pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to putting operation will result in a
reference leak here.A new function pm_runtime_resume_and_get is introduced in
[0] to keep usage counter balanced. So We fix the reference
leak by replacing it with new funtion.[0] dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
Fixes: c2df3de0d07e ("gpio: zynq: properly support runtime PM for GPIO used as interrupts")
Reported-by: Hulk Robot
Signed-off-by: Qinglang Miao
Signed-off-by: Bartosz Golaszewski -
A similar check was added in gpiochip_generic_request, but not in free.
This has caused an imbalance count of request vs. free calls to the
pinctrl driver. This patch is targeted to fix that issue.Fixes: 2ab73c6d8323 ("gpio: Support GPIO controllers without pin-ranges")
Signed-off-by: Edmond Chung
Signed-off-by: Andrew Chant
Signed-off-by: Will McVicker
Signed-off-by: Bartosz Golaszewski -
Following Calltrace is found when running echo freeze > /sys/power/state.
[ 272.755506] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010
[ 272.755585] Call trace:
[ 272.755587] dwapb_gpio_suspend+0x18/0x318
[ 272.755588] pm_generic_suspend+0x2c/0x48
[ 272.755595] acpi_subsys_suspend+0x60/0x70
[ 272.755599] dpm_run_callback.isra.18+0x40/0xe0
[ 272.755601] __device_suspend+0xf4/0x360The reason is platform_set_drvdata() is deleted, and dwapb_gpio_suspend()
get *gpio by dev_get_drvdata().Fixes: feeaefd378ca ("gpio: dwapb: Use resource managed GPIO-chip add data method")
Signed-off-by: Luo Jiaxing
Acked-by: Serge Semin
Reviewed-by: Andy Shevchenko
Signed-off-by: Bartosz Golaszewski -
pm_runtime_enable will increase power disable depth. Thus a
pairing decrement is needed on the error handling path to keep
it balanced.Fixes:27a49ed17e224(gpio: arizona: Add support for GPIOs that)
Reported-by: Hulk Robot
Signed-off-by: Zheng Liang
Signed-off-by: Bartosz Golaszewski
11 Nov, 2020
1 commit
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Fix the check on the number of IRQs to allow up to the maximum (32)
instead of only the maximum minus one.Fixes: 96868dce644d ("gpio/sifive: Add GPIO driver for SiFive SoCs")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal
Link: https://lore.kernel.org/r/20201107081420.60325-10-damien.lemoal@wdc.com
Signed-off-by: Linus Walleij
10 Nov, 2020
1 commit
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…l/git/brgl/linux into fixes
gpio fixes for v5.10-rc3
- fix missing conversion to gpiolib irqchip in gpio-dwapb
- fix bank properties for ast2600 variant in gpio-aspeed
- make sysfs work again when the character device is disabled
- fix interrupt handling in gpio-pcie-idio-24
06 Nov, 2020
3 commits
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This enables the PEX8311 internal PCI wire interrupt and the PEX8311
local interrupt input so the local interrupts are forwarded to the PCI.Fixes: 585562046628 ("gpio: Add GPIO support for the ACCES PCIe-IDIO-24 family")
Cc: stable@vger.kernel.org
Signed-off-by: Arnaud de Turckheim
Reviewed-by: William Breathitt Gray
Signed-off-by: Bartosz Golaszewski -
This fixes the COS Enable Register value for enabling/disabling the
corresponding IRQs bank.Fixes: 585562046628 ("gpio: Add GPIO support for the ACCES PCIe-IDIO-24 family")
Cc: stable@vger.kernel.org
Signed-off-by: Arnaud de Turckheim
Reviewed-by: William Breathitt Gray
Signed-off-by: Bartosz Golaszewski -
Fix the bitwise operation to remove only the corresponding bit from the
mask.Fixes: 585562046628 ("gpio: Add GPIO support for the ACCES PCIe-IDIO-24 family")
Cc: stable@vger.kernel.org
Signed-off-by: Arnaud de Turckheim
Reviewed-by: William Breathitt Gray
Signed-off-by: Bartosz Golaszewski
05 Nov, 2020
1 commit
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In gpiochip_setup_dev() the call to gpiolib_cdev_register() indirectly
calls device_add(). This is still required for the sysfs even when
CONFIG_GPIO_CDEV is not selected in the build.Replace the stubbed functions in gpiolib-cdev.h with macros in gpiolib.c
that perform the required device_add() and device_del() when
CONFIG_GPIO_CDEV is not selected.Fixes: d143493c01b7 (gpiolib: make cdev a build option)
Reported-by: Nicolas Schichan
Signed-off-by: Kent Gibson
Tested-by: Nicolas Schichan
Signed-off-by: Bartosz Golaszewski
28 Oct, 2020
1 commit
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This reverts commit 579ced8fdb00b8e94304a83e3cc419f6f8eab08e.
Turns out I was overly optimistic about cpu_pm blocking idle being a
solution for handling edge interrupts. While it helps in preventing
entering idle states that potentially lose context, we can still get
an edge interrupt triggering while entering idle. So we need to also
add back the workaround for seeing if there are any pending edge
interrupts when waking up.Signed-off-by: Tony Lindgren
Cc: Aaro Koskinen
Cc: Grygorii Strashko
Cc: Keerthy
Cc: Ladislav Michl
Cc: Peter Ujfalusi
Cc: Russell King
Cc: Tero Kristo
Link: https://lore.kernel.org/r/20201028060556.56038-1-tony@atomide.com
Signed-off-by: Linus Walleij
26 Oct, 2020
2 commits
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GPIO_T is mapped to the most significant byte of input/output mask, and
the byte in "output" mask should be 0 because GPIO_T is input only. All
the other bits need to be 1 because GPIO_Q/R/S support both input and
output modes.Fixes: ab4a85534c3e ("gpio: aspeed: Add in ast2600 details to Aspeed driver")
Signed-off-by: Billy Tsai
Reviewed-by: Tao Ren
Reviewed-by: Joel Stanley
Reviewed-by: Andrew Jeffery
Signed-off-by: Bartosz Golaszewski -
Commit 0ea683931adb ("gpio: dwapb: Convert driver to using the
GPIO-lib-based IRQ-chip") missed the case in dwapb_irq_set_wake().Without this fix, probing the dwapb gpio driver will hit a error:
"address between user and kernel address ranges" on a Ampere armv8a
server and cause a panic.Fixes: 0ea683931adb ("gpio: dwapb: Convert driver to using the GPIO-lib-based IRQ-chip")
Signed-off-by: Jia He
Reviewed-by: Andy Shevchenko
Acked-by: Serge Semin
Signed-off-by: Bartosz Golaszewski
15 Oct, 2020
1 commit
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Pull MFD updates from Lee Jones:
"New Drivers:
- Add support for initialising shared (between children) Regmaps
- Add support for Kontron SL28CPLD
- Add support for ENE KB3930 Embedded Controller
- Add support for Intel FPGA PAC MAX 10 BMCNew Device Support:
- Add support for Power to Ricoh RN5T618
- Add support for UART to Intel Lakefield
- Add support for LP87524_Q1 to Texas Instruments LP87565New Functionality:
- Device Tree; ene-kb3930, sl28cpld, syscon, lp87565, lp87524-q1
- Use new helper dev_err_probe(); madera-core, stmfx, wcd934x
- Use new GPIOD API; dm355evm_msp
- Add wake-up capability; sprd-sc27xx-spi
- Add ACPI support; kempld-coreFix-ups:
- Trivial (spelling/whitespace); Kconfig, ab8500
- Fix for unused variables; khadas-mcu, kempld-core
- Remove unused header file(s); mt6360-core
- Use correct IRQ flags in docs; act8945a, gateworks-gsc, rohm,bd70528-pmic
- Add COMPILE_TEST support; asic3, tmio_core
- Add dependency on I2C; SL28CPLDBug Fixes:
- Fix memory leak(s); sm501
- Do not free regmap_config's 'name' until exit; syscon"* tag 'mfd-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (34 commits)
mfd: kempld-core: Fix unused variable 'kempld_acpi_table' when !ACPI
mfd: sl28cpld: Depend on I2C
mfd: asic3: Build if COMPILE_TEST=y
dt-bindings: mfd: Correct interrupt flags in examples
mfd: Add ACPI support to Kontron PLD driver
mfd: intel-m10-bmc: Add Intel MAX 10 BMC chip support for Intel FPGA PAC
mfd: lp87565: Add LP87524-Q1 variant
dt-bindings: mfd: Add LP87524-Q1
dt-bindings: mfd: lp87565: Convert to yaml
mfd: mt6360: Remove unused include
mfd: sm501: Fix leaks in probe()
mfd: syscon: Don't free allocated name for regmap_config
dt-bindings: mfd: syscon: Document Exynos3 and Exynos5433 compatibles
dt-bindings: mfd: syscon: Merge Samsung Exynos Sysreg bindings
dt-bindings: mfd: ab8500: Remove weird Unicode characters
mfd: sprd: Add wakeup capability for PMIC IRQ
mfd: intel-lpss: Add device IDs for UART ports for Lakefield
mfd: dm355evm_msp: Convert LEDs to GPIO descriptor table
mfd: wcd934x: Simplify with dev_err_probe()
mfd: stmfx: Simplify with dev_err_probe()
...
14 Oct, 2020
1 commit
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Pull GPIO updates from Linus Walleij:
"This time very little driver changes but lots of core changes.We have some interesting cooperative work for ARM and Intel alike,
making the GPIO subsystem more and more suitable for industrial
systems and the like, in addition to the in-kernel users.We touch driver core (device properties) and lib/* by adding one
simple string array free function, these are authored by Andy
Shevchenko who is a well known and recognized core helpers maintainers
so this should be fine.We also see some Android GKI-related modularization in the MXC
drivers.Core changes:
- The big core change is the updated (v2) userspace character device
API.This corrects badly designed 64-bit alignment around the line
events. We also add the debounce request feature. This echoes the
often quotes passage from Frederick Brooks "The mythical man-month"
to always throw one away, which we have seen before in things such
as V4L2. So we put in a new one and deprecate and obsolete the old
one.- All example tools in tools/gpio/* are migrated to the new API to
set a good example. The libgpiod userspace library has been
augmented to use this new API pretty much from day 1.- Some misc API hardening by using strn* function calls has been
added as well.- Use the simpler IDA interface for GPIO chip instance enumeration.
- Add device core function for counting string arrays in device
properties.- Provide a generic library function kfree_strarray() that can be
used throughout the kernel.Driver enhancements:
- The DesignWare dwapb-gpio driver has been enhanced and now uses the
IRQ handling in the gpiolib core.- The mockup and aggregator drivers have seen some substantial code
clean-up and now use more of the core kernel inftrastructure.- Misc cleanups using dev_err_probe().
- The MXC drivers (Freescale/NXP) can now be built modularized, which
makes modularized GKI Android kernels happy"* tag 'gpio-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (73 commits)
gpiolib: Update header block in gpiolib-cdev.h
gpiolib: cdev: switch from kstrdup() to kstrndup()
docs: gpio: add a new document to its index.rst
gpio: pca953x: Add support for the NXP PCAL9554B/C
tools: gpio: add debounce support to gpio-event-mon
tools: gpio: add multi-line monitoring to gpio-event-mon
tools: gpio: port gpio-event-mon to v2 uAPI
tools: gpio: port gpio-hammer to v2 uAPI
tools: gpio: rename nlines to num_lines
tools: gpio: port gpio-watch to v2 uAPI
tools: gpio: port lsgpio to v2 uAPI
gpio: uapi: document uAPI v1 as deprecated
gpiolib: cdev: support setting debounce
gpiolib: cdev: support GPIO_V2_LINE_SET_VALUES_IOCTL
gpiolib: cdev: support GPIO_V2_LINE_SET_CONFIG_IOCTL
gpiolib: cdev: support edge detection for uAPI v2
gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL
gpiolib: cdev: support GPIO_V2_GET_LINE_IOCTL and GPIO_V2_LINE_GET_VALUES_IOCTL
gpiolib: add build option for CDEV v1 ABI
gpiolib: make cdev a build option
...
13 Oct, 2020
1 commit
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Pull irq updates from Thomas Gleixner:
"Updates for the interrupt subsystem:Core:
- Allow trimming of interrupt hierarchy to support odd hardware
setups where only a subset of the interrupts requires the full
hierarchy.- Allow the retrigger mechanism to follow a hierarchy to simplify
driver code.- Provide a mechanism to force enable wakeup interrrupts on suspend.
- More infrastructure to handle IPIs in the core code
Architectures:
- Convert ARM/ARM64 IPI handling to utilize the interrupt core code.Drivers:
- The usual pile of new interrupt chips (MStar, Actions Owl, TI
PRUSS, Designware ICTL)- ARM(64) IPI related conversions
- Wakeup support for Qualcom PDC
- Prevent hierarchy corruption in the NVIDIA Tegra driver
- The usual small fixes, improvements and cleanups all over the
place"* tag 'irq-core-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (59 commits)
dt-bindings: interrupt-controller: Add MStar interrupt controller
irqchip/irq-mst: Add MStar interrupt controller support
soc/tegra: pmc: Don't create fake interrupt hierarchy levels
soc/tegra: pmc: Allow optional irq parent callbacks
gpio: tegra186: Allow optional irq parent callbacks
genirq/irqdomain: Allow partial trimming of irq_data hierarchy
irqchip/qcom-pdc: Reset PDC interrupts during init
irqchip/qcom-pdc: Set IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND flag
pinctrl: qcom: Set IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND flag
genirq/PM: Introduce IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND flag
pinctrl: qcom: Use return value from irq_set_wake() call
pinctrl: qcom: Set IRQCHIP_SET_TYPE_MASKED and IRQCHIP_MASK_ON_SUSPEND flags
ARM: Handle no IPI being registered in show_ipi_list()
MAINTAINERS: Add entries for Actions Semi Owl SIRQ controller
irqchip: Add Actions Semi Owl SIRQ controller
dt-bindings: interrupt-controller: Add Actions SIRQ controller binding
dt-bindings: dw-apb-ictl: Update binding to describe use as primary interrupt controller
irqchip/dw-apb-ictl: Add primary interrupt controller support
irqchip/dw-apb-ictl: Refactor priot to introducing hierarchical irq domains
genirq: Add stub for set_handle_irq() when !GENERIC_IRQ_MULTI_HANDLER
...
10 Oct, 2020
1 commit
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Make the tegra186 GPIO driver resistent to variable depth
interrupt hierarchy, which we are about to introduce.No functionnal change yet.
Signed-off-by: Marc Zyngier
09 Oct, 2020
2 commits
-
The dev_t is defined in types.h while struct gpio_device forward declaration
is missed. Take into account above and update header block in gpiolib-cdev.h.Signed-off-by: Andy Shevchenko
Link: https://lore.kernel.org/r/20201005095622.73616-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij -
Use kstrndup() to copy line labels from the userspace provided char
array, rather than ensuring the char array contains a null terminator
and using kstrdup().Note that the length provided to kstrndup() still assumes that the char
array does contain a null terminator, so the maximum string length is one
less than the array. This is consistent with the previous behaviour.Suggested-by: Andy Shevchenko
Signed-off-by: Kent Gibson
Link: https://lore.kernel.org/r/20201005070246.20927-1-warthog618@gmail.com
Signed-off-by: Linus Walleij
