Instead of playing tricks with registers in the interrupt handler,
utilize the IRQ chip core for ACKing interrupts properly.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
There is nothing wrong with requesting pin that owned by ACPI.
The only difference is how interrupt status will be reflected.
It means that in ACPI mode we may not use pin as GPIO-backed IRQ.
Taking above into consideration, move the check from GPIO to IRQ chip
callback.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Consolidate IRQ routines for better maintenance.
While here, rename lp_irq_type() to lp_irq_set_type() to be in align
with a callback name.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Consolidate ->remove and ->probe() callbacks for better maintenance.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
We may need this function for other features in the pin control driver.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Simple type conversion with no functional change implied.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Convert driver to use memory mapped IO accessors.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
There is no need to keep pointer to struct platform_device, which is container
of struct device, because the latter is what have been used everywhere outside
of ->probe() path. In any case we may derive pointer to the container when
needed.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
A pin in native mode still can be requested as GPIO, though we assume
that firmware has configured it properly, which sometimes is not the case.
Here we allow turning the pin as GPIO to avoid potential issues,
but issue warning that something might be wrong.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
New generations can use 2 bits for mode selector.
Update the code to support it.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
The pattern
foo = kmalloc(sizeof(*foo), GFP_KERNEL);
has an advantage when foo type is changed. Since we are planning a such,
better to be prepared by using standard pattern for memory allocation.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Replace explicit casting by pointer to struct resource with
specifier replacement to %pR to print the IO resource.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
There is no need to assign ret variable in ->probe().
Drop useless assignment.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
When we count from 0 it's possible to get into off-by-one error.
That's what had happened to this driver. So, correct amount of pins
and related typos in the code.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
The Intel Lynxpoint pinctrl driver implements irqchip callbacks which are
called with desc->lock raw_spinlock held. In mainline this is fine because
spinlock resolves to raw_spinlock. However, running the same code in -rt
we will get a BUG() asserted.
This is because in -rt spinlocks are preemptible so taking the driver
private spinlock in irqchip callbacks causes might_sleep() to trigger.
In order to keep -rt happy but at the same time make sure that register
accesses get serialized, convert the driver to use raw_spinlock instead.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Move Lynxpoint GPIO driver under Intel pin control umbrella
for further transformation to a real pin control driver.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
We may use now available struct intel_pinctrl in the driver.
No functional change implied.
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Use local variable to keep device pointer in order to increase readability
of the driver.
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
There is no need to keep pointer to struct platform_device, which is container
of struct device, because the latter is what have been used everywhere outside
of ->probe() path. In any case we may derive pointer to the container when
needed.
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
There are few drivers for Intel SoC GPIO which may utilize
the same data structure to describe this IP.
Share struct intel_pinctrl for wider user.
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Use new GPIO_LINE_DIRECTION_IN and GPIO_LINE_DIRECTION_OUT when
returning GPIO direction to GPIO framework.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Use new GPIO_LINE_DIRECTION_IN and GPIO_LINE_DIRECTION_OUT when
returning GPIO direction to GPIO framework.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Use new GPIO_LINE_DIRECTION_IN and GPIO_LINE_DIRECTION_OUT when
returning GPIO direction to GPIO framework.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
There is a logical continuation of the commit 5fbe5b5883 ("gpio: Initialize
the irqchip valid_mask with a callback") to split IRQ initialization to
hardware and valid mask setup parts.
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
It has turned out that some mmc host drivers, but perhaps also others
drivers, needs to reset the pinctrl into the default state
(PINCTRL_STATE_DEFAULT). However, they can't use the existing
pinctrl_pm_select_default_state(), as that requires CONFIG_PM to be set.
This leads to open coding, as they need to look up the default state
themselves and then select it.
To avoid the open coding, let's introduce pinctrl_select_default_state()
and make it available independently of CONFIG_PM. As a matter of fact, this
makes it more consistent with the behaviour of the driver core, as it
already tries to looks up the default state during probe.
Going forward, users of pinctrl_pm_select_default_state() are encouraged to
move to pinctrl_select_default_state(), so the old API can be removed.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20191206170821.29711-2-ulf.hansson@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fix below linker error
ld: drivers/pinctrl/pinctrl-equilibrium.o: in function
`pinconf_generic_dt_node_to_map_all':
pinctrl-equilibrium.c:(.text+0xb): undefined reference
to `pinconf_generic_dt_node_to_map'
Caused by below commit
1948d5c51d ("pinctrl: Add pinmux & GPIO controller driver for a new SoC")
by adding 'depends on OF' in Kconfig driver entry.
Reported-by: Randy Dunlap <rdunlap@infradead.org>>
Signed-off-by: Rahul Tanwar <rahul.tanwar@linux.intel.com>
Link: https://lore.kernel.org/r/ba937f271d1a2173828a2325990d62cb36d61595.1575514110.git.rahul.tanwar@linux.intel.com
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* Fix Baytrail silicon issue by using a global lock
* Fix North community pin names that user will assume their functions
* Convert Cherryview and Baytrail to pass IRQ chip along with GPIO one
The following is an automated git shortlog grouped by driver:
baytrail:
- Pass irqchip when adding gpiochip
- Add GPIO <-> pin mapping ranges via callback
- Update North Community pin list
- Really serialize all register accesses
cherryview:
- Pass irqchip when adding gpiochip
- Add GPIO <-> pin mapping ranges via callback
- Split out irq hw-init into a separate helper function
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Merge tag 'intel-pinctrl-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into fixes
intel-pinctrl for v5.5-2
* Fix Baytrail silicon issue by using a global lock
* Fix North community pin names that user will assume their functions
* Convert Cherryview and Baytrail to pass IRQ chip along with GPIO one
The following is an automated git shortlog grouped by driver:
baytrail:
- Pass irqchip when adding gpiochip
- Add GPIO <-> pin mapping ranges via callback
- Update North Community pin list
- Really serialize all register accesses
cherryview:
- Pass irqchip when adding gpiochip
- Add GPIO <-> pin mapping ranges via callback
- Split out irq hw-init into a separate helper function
This commit adds a check on ops pointer to avoid a kernel panic when
ops->strict is used. Indeed, on some pinctrl driver (at least for
pinctrl-stmfx) the pinmux ops is not implemented. Let's assume than gpio
can be used in this case.
Fixes: 472a61e777 ("pinctrl/gpio: Take MUX usage into account")
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Link: https://lore.kernel.org/r/20191204144106.10876-1-alexandre.torgue@st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The AST2600 pinconf is a little different from previous generations of
ASPEED BMC SoCs in terms of architecture. The pull-down setting is
per-pin setting now, and drive-strength support 4 kind of value (e.g.
4ma, 8ma, 12ma, 16ma).
Signed-off-by: Johnny Huang <johnny_huang@aspeedtech.com>
[AJ: Trim unused pinctrl register macros]
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20191202061432.3996-8-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Since some of the AST2600 pinconf setting are not just single bit, modified
aspeed_pin_config @bit to @mask and add @mask to aspeed_pin_config_map to
support configuring multiple bits.
Signed-off-by: Johnny Huang <johnny_huang@aspeedtech.com>
[AJ: Tweak commit message]
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20191202061432.3996-7-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The AST2600 pinconf differs from the 2400 and 2500, aspeed_pin_config_map
should define separately, and add @confmaps and @nconfmaps to
aspeed_pinctrl_data structure for that change.
Signed-off-by: Johnny Huang <johnny_huang@aspeedtech.com>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20191202061432.3996-6-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This helper macro is for declaring single bit (SB) mask pinconf,
and is used to prepare for modifying aspeed_pin_config
structure, the aspeed_pin_config structure @bit variable will be
modified to @mask.
This case is common in the AST2400/AST2500 which the mask is a single bit.
Signed-off-by: Johnny Huang <johnny_huang@aspeedtech.com>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20191202061432.3996-5-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
AST2600 has two USB ports, A, B:
Port A supports 4 distinct modes:
1. PCIe EHCI to Hub
2. Hub to PHY
3. BMC EHCI to PHY
4. PCIe EHCI to PHY
Port B support 3 modes:
1. USB1.1 HID controller
2. USB2.0 Device controller
3. BMC EHCI port2
Implement pinmux support by mapping each ports' functions onto a single
pin group for each port.
Signed-off-by: Johnny Huang <johnny_huang@aspeedtech.com>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20191202061432.3996-4-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
These pins only expose a single function but are not fixed-function as
their I3C capability can be disabled.
Signed-off-by: Johnny Huang <johnny_huang@aspeedtech.com>
[AJ: Tweak commit message, sort pins list]
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20191202061432.3996-3-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Early revisions of the AST2600 datasheet are conflicted about the state
of the LPC/eSPI strapping bit (SCU510[6]). Conversations with ASPEED
determined that the reference pinmux configuration tables were in error
and the SCU documentation contained the correct configuration. Update
the driver to reflect the state described in the SCU documentation.
Fixes: 2eda1cdec4 ("pinctrl: aspeed: Add AST2600 pinmux support")
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20191202050110.15340-1-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch corrects the SPDX License Identifier style in
header file related to STMicroelectronics pinctrl driver.
For C header files Documentation/process/license-rules.rst
mandates C-like comments (opposed to C source files where
C++ style should be used).
Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46.
Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Link: https://lore.kernel.org/r/14bb695da50f7af8499e7dfc32c2ab753d92a3e9.1574871463.git.nishadkamdar@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch corrects the SPDX License Identifier style in
header file related mediatek mt2712 pinctrl driver.
For C header files Documentation/process/license-rules.rst
mandates C-like comments (opposed to C source files where
C++ style should be used).
Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46.
Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Link: https://lore.kernel.org/r/2994fb2f3375790e832396cdbb0a279dc8c8839f.1574871463.git.nishadkamdar@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The config options toggle Samsung Exynos SoCs pinctrl drivers, not the
driver data. Clarify this in the option title/name and also make it
consistent with other Samsung entries. No functional change.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
The Samsung pinctrl drivers require only GPIOLIB and OF for building.
The drivers should be buildable on all architectures so enable
COMPILE_TEST.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
After commit 5ea422750a9f ("pinctrl: baytrail: Pass irqchip when
adding gpiochip") the GPIO IRQ chip structure is being initialized
under conditional when IRQ resource has been discovered. But that
commit left aside the assignment of ->init_valid_mask() callback
that is done unconditionally.
For sake of consistency and preventing some garbage in GPIO IRQ chip
structure group initialization together.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Keeping the IRQ chip definition static shares it with multiple instances
of the GPIO chip in the system. This is bad and now we get this warning
from GPIO library:
"detected irqchip that is shared with multiple gpiochips: please fix the driver."
Hence, move the IRQ chip definition from being driver static into the struct
intel_pinctrl. So a unique IRQ chip is used for each GPIO chip instance.
Fixes: 9f573b98ca ("pinctrl: baytrail: Update irq chip operations")
Depends-on: ca8a958e2a ("pinctrl: baytrail: Pass irqchip when adding gpiochip")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward conversion.
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
When IRQ chip is instantiated via GPIO library flow, the few functions,
in particular the ACPI event registration mechanism, on some of ACPI based
platforms expect that the pin ranges are initialized to that point.
Add GPIO <-> pin mapping ranges via callback in the GPIO library flow.
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Split out irq hw-init into a separate chv_gpio_irq_init_hw() function.
This is a preparation patch for passing the irqchip when adding the
gpiochip.
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward conversion.
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
When IRQ chip is instantiated via GPIO library flow, the few functions,
in particular the ACPI event registration mechanism, on some of ACPI based
platforms expect that the pin ranges are initialized to that point.
Add GPIO <-> pin mapping ranges via callback in the GPIO library flow.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Update North Community pin list to be more clear about pin functions.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Commit 39ce8150a0 ("pinctrl: baytrail: Serialize all register access")
added a spinlock around all register accesses because:
"There is a hardware issue in Intel Baytrail where concurrent GPIO register
access might result reads of 0xffffffff and writes might get dropped
completely."
Testing has shown that this does not catch all cases, there are still
2 problems remaining
1) The original fix uses a spinlock per byt_gpio device / struct,
additional testing has shown that this is not sufficient concurent
accesses to 2 different GPIO banks also suffer from the same problem.
This commit fixes this by moving to a single global lock.
2) The original fix did not add a lock around the register accesses in
the suspend/resume handling.
Since pinctrl-baytrail.c is using normal suspend/resume handlers,
interrupts are still enabled during suspend/resume handling. Nothing
should be using the GPIOs when they are being taken down, _but_ the
GPIOs themselves may still cause interrupts, which are likely to
use (read) the triggering GPIO. So we need to protect against
concurrent GPIO register accesses in the suspend/resume handlers too.
This commit fixes this by adding the missing spin_lock / unlock calls.
The 2 fixes together fix the Acer Switch 10 SW5-012 getting completely
confused after a suspend resume. The DSDT for this device has a bug
in its _LID method which reprograms the home and power button trigger-
flags requesting both high and low _level_ interrupts so the IRQs for
these 2 GPIOs continuously fire. This combined with the saving of
registers during suspend, triggers concurrent GPIO register accesses
resulting in saving 0xffffffff as pconf0 value during suspend and then
when restoring this on resume the pinmux settings get all messed up,
resulting in various I2C busses being stuck, the wifi no longer working
and often the tablet simply not coming out of suspend at all.
Cc: stable@vger.kernel.org
Fixes: 39ce8150a0 ("pinctrl: baytrail: Serialize all register access")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
If there are no function GPIOs, sh_pfc_register_gpiochip() returns early
with a success indicator. This is fragile, as new code may be added
after the #ifdef block, which won't be executed in case of early return.
Invert the logic, so the code always continues until the end of the
function on success.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20191113101809.28600-1-geert+renesas@glider.be
Pull irq updates from Ingo Molnar:
"Most of the IRQ subsystem changes in this cycle were irq-chip driver
updates:
- Qualcomm PDC wakeup interrupt support
- Layerscape external IRQ support
- Broadcom bcm7038 PM and wakeup support
- Ingenic driver cleanup and modernization
- GICv3 ITS preparation for GICv4.1 updates
- GICv4 fixes
There's also the series from Frederic Weisbecker that fixes memory
ordering bugs for the irq-work logic, whose primary fix is to turn
work->irq_work.flags into an atomic variable and then convert the
complex (and buggy) atomic_cmpxchg() loop in irq_work_claim() into a
much simpler atomic_fetch_or() call.
There are also various smaller cleanups"
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
pinctrl/sdm845: Add PDC wakeup interrupt map for GPIOs
pinctrl/msm: Setup GPIO chip in hierarchy
irqchip/qcom-pdc: Add irqchip set/get state calls
irqchip/qcom-pdc: Add irqdomain for wakeup capable GPIOs
irqchip/qcom-pdc: Do not toggle IRQ_ENABLE during mask/unmask
irqchip/qcom-pdc: Update max PDC interrupts
of/irq: Document properties for wakeup interrupt parent
genirq: Introduce irq_chip_get/set_parent_state calls
irqdomain: Add bus token DOMAIN_BUS_WAKEUP
genirq: Fix function documentation of __irq_alloc_descs()
irq_work: Fix IRQ_WORK_BUSY bit clearing
irqchip/ti-sci-inta: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))
irq_work: Slightly simplify IRQ_WORK_PENDING clearing
irq_work: Fix irq_work_claim() memory ordering
irq_work: Convert flags to atomic_t
irqchip: Ingenic: Add process for more than one irq at the same time.
irqchip: ingenic: Alloc generic chips from IRQ domain
irqchip: ingenic: Get virq number from IRQ domain
irqchip: ingenic: Error out if IRQ domain creation failed
irqchip: ingenic: Drop redundant irq_suspend / irq_resume functions
...
series:
Core changes:
- Avoid taking direct references to device tree-supplied
device names: these may changed at runtime under certain
circumstances to kstrdup them.
GPIO related:
- Work is ongoing to move to passing the irqchip along as a
templated struct gpio_irq_chip when adding a standard
gpiolib-based irqchip to a GPIO controller, a few patches
in this cycle switches a few pin control drivers over to
using this method.
New hardware support:
- Intel Lightning Mountain SoC pin controller and GPIO
support, a first Intel platform to use device tree rather
than ACPI to configure the system. News reports says that
this SoC is a network processor.
- Qualcomm MSM8976 and MSM8956
- Qualcomm PMIC GPIO now also supports PM6150 and PM6150L
- Qualcomm SPMI MPP and SPMI GPIO for PM8950 and PMI8950
- Rockchip RK3308
- Renesas R8A77961
- Allwinner Meson-A1
Driver improvements:
- get_multiple and set_multiple support for the AT91-PIO4 driver.
- Convert Qualcomm SSBI GPIO to use the hierarchical IRQ helpers
in the GPIOlib irqchip.
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Merge tag 'pinctrl-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes for v5.5.
It is pretty much business as usual, the most interesting thing I
think is the pin controller for a new Intel chip called Lightning
Mountain, which is according to news reports some kind of embedded
network processor and what is surprising about it is that Intel have
decided to use device tree to describe the system rather than ACPI
that they have traditionally favored.
Core changes:
- Avoid taking direct references to device tree-supplied device
names: these may changed at runtime under certain circumstances to
kstrdup them.
GPIO related:
- Work is ongoing to move to passing the irqchip along as a templated
struct gpio_irq_chip when adding a standard gpiolib-based irqchip
to a GPIO controller, a few patches in this cycle switches a few
pin control drivers over to using this method.
New hardware support:
- Intel Lightning Mountain SoC pin controller and GPIO support, a
first Intel platform to use device tree rather than ACPI to
configure the system. News reports says that this SoC is a network
processor.
- Qualcomm MSM8976 and MSM8956
- Qualcomm PMIC GPIO now also supports PM6150 and PM6150L
- Qualcomm SPMI MPP and SPMI GPIO for PM8950 and PMI8950
- Rockchip RK3308
- Renesas R8A77961
- Allwinner Meson-A1
Driver improvements:
- get_multiple and set_multiple support for the AT91-PIO4 driver.
- Convert Qualcomm SSBI GPIO to use the hierarchical IRQ helpers in
the GPIOlib irqchip"
* tag 'pinctrl-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (93 commits)
pinctrl: ingenic: Add OTG VBUS pin for the JZ4770
pinctrl: ingenic: Handle PIN_CONFIG_OUTPUT config
pinctrl: Fix Kconfig indentation
pinctrl: lewisburg: Update pin list according to v1.1v6
MAINTAINERS: Replace my email by one @kernel.org
pinctrl: armada-37xx: Fix irq mask access in armada_37xx_irq_set_type()
dt-bindings: pinctrl: intel: Add for new SoC
pinctrl: Add pinmux & GPIO controller driver for a new SoC
pinctrl: rza1: remove unnecessary static inline function
pinctrl: meson: add pinctrl driver support for Meson-A1 SoC
pinctrl: meson: add a new callback for SoCs fixup
pinctrl: nomadik: db8500: Add mc0_a_2 pin group without direction control
dt-bindings: pinctrl: Convert generic pin mux and config properties to schema
pinctrl: cherryview: Missed type change to unsigned int
pinctrl: intel: Missed type change to unsigned int
pinctrl: use devm_platform_ioremap_resource() to simplify code
pinctrl: just return if no valid maps
dt-bindings: pinctrl: qcom-pmic-mpp: Add support for PM/PMI8950
pinctrl: qcom: spmi-mpp: Add PM/PMI8950 compatible strings
dt-bindings: pinctrl: qcom-pmic-gpio: Add support for PM/PMI8950
...
This makes the driver support the 'output-low' and 'output-high'
devicetree properties in gpio-hog sub-nodes.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20191119155211.102527-1-paul@crapouillou.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
$ sed -e 's/^ /\t/' -i */Kconfig
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/1574306382-32516-1-git-send-email-krzk@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Version 1.1v6 of pin list has some changes in pin names for Intel Lewisburg.
Update the driver accordingly.
Note, it reveals the bug in the driver that misses two pins in GPP_L and
has rather two extra ones. That's why the ordering of some groups is changed.
Fixes: e480b74538 ("pinctrl: intel: Add Intel Lewisburg GPIO support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20191120133739.54332-1-andriy.shevchenko@linux.intel.com
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
As explained in the following commit a9a1a48336 ("pinctrl:
armada-37xx: Fix gpio interrupt setup") the armada_37xx_irq_set_type()
function can be called before the initialization of the mask field.
That means that we can't use this field in this function and need to
workaround it using hwirq.
Fixes: 30ac0d3b07 ("pinctrl: armada-37xx: Add edge both type gpio irq support")
Cc: stable@vger.kernel.org
Reported-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lore.kernel.org/r/20191115155752.2562-1-gregory.clement@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Intel Lightning Mountain SoC has a pinmux controller & GPIO controller IP which
controls pin multiplexing & configuration including GPIO functions selection &
GPIO attributes configuration.
This IP is not based on & does not have anything in common with Chassis
specification. The pinctrl drivers under pinctrl/intel/* are all based upon
Chassis spec compliant pinctrl IPs. So this driver doesn't fit & can not use
pinctrl framework under pinctrl/intel/* and it requires a separate new driver.
Add a new GPIO & pin control framework based driver for this IP.
Signed-off-by: Rahul Tanwar <rahul.tanwar@linux.intel.com>
Link: https://lore.kernel.org/r/33e649758b70490f01724a887c490d5008c7656d.1573797249.git.rahul.tanwar@linux.intel.com
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Having static inline oneliner does not benefit too much when it is
only called from another oneliner function. Remove some of the
'onion'. This simplifies also the coming usage of the gpiolib
defines. We can do conversion from chip bits to gpiolib direction
defines as last step in the get_direction callback. Drivers can
use chip specific values in driver internal functions and do
conversion only once.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20191113071045.GA22110@localhost.localdomain
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Meson A1 SoC share the same register layout of pinmux with previous
Meson-G12A, however there is difference for gpio and pin config register
in A1. The main difference is that registers before A1 are grouped by
function while those of A1 are by bank. The new register layout is as
below:
/* first bank */ /* addr */
- P_PADCTRL_GPIOP_I base + 0x00 << 2
- P_PADCTRL_GPIOP_O base + 0x01 << 2
- P_PADCTRL_GPIOP_OEN base + 0x02 << 2
- P_PADCTRL_GPIOP_PULL_EN base + 0x03 << 2
- P_PADCTRL_GPIOP_PULL_UP base + 0x04 << 2
- P_PADCTRL_GPIOP_DS base + 0x05 << 2
/* second bank */
- P_PADCTRL_GPIOB_I base + 0x10 << 2
- P_PADCTRL_GPIOB_O base + 0x11 << 2
- P_PADCTRL_GPIOB_OEN base + 0x12 << 2
- P_PADCTRL_GPIOB_PULL_EN base + 0x13 << 2
- P_PADCTRL_GPIOB_PULL_UP base + 0x14 << 2
- P_PADCTRL_GPIOB_DS base + 0x15 << 2
Each bank contains at least 6 registers to be configured, if one bank
has more than 16 gpios, an extra P_PADCTRL_GPIO[X]_DS_EXT is included.
Between two adjacent P_PADCTRL_GPIO[X]_I, there is an offset 0x10, that
is to say, for third bank, the offsets will be 0x20,0x21,0x22,0x23,0x24
,0x25 according to above register layout. For previous chips, registers
are grouped according to their functions while registers of A1 are
according to bank.Also note that there is no AO bank any more in A1.
Current Meson pinctrl driver can cover such change by using base address
of GPIO as that of drive-strength. While simply giving reg_ds = reg_pullen
make wrong value to reg_ds for Socs that do not support drive-strength
like AXG.To make things simple, add an extra dt parser function for
a1 and remain the old dt parser function for only reg parsing.
Signed-off-by: Qianggui Song <qianggui.song@amlogic.com>
Link: https://lore.kernel.org/r/1573819429-6937-3-git-send-email-qianggui.song@amlogic.com
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
In meson_pinctrl_parse_dt, it contains two parts: reg parsing and
SoC relative fixup for AO. Several fixups in the same code make it hard
to maintain, so move all fixups to each SoC's callback and make
meson_pinctrl_parse_dt just do the reg parsing, separate these two
parts.Overview of all current Meson SoCs fixup is as below:
+------+--------------------------------------+--------------------------+
| | | |
| SoC | EE domain | AO domain |
+------+--------------------------------------+--------------------------+
|m8 | parse regs: | parse regs: |
|m8b | gpio,mux,pull,pull-enable(skip ds) | gpio,mux,pull(skip ds)|
|gxl | fixup: | fixup: |
|gxbb | no | pull-enable = pull; |
|axg | | |
+------+--------------------------------------+--------------------------+
|g12a | parse regs: | parse regs: |
|sm1 | gpio,mux,pull,pull-enable,ds | gpio,mux,ds |
| | fixup: | fixup: |
| | no | pull = gpio; |
| | | pull-enable = gpio; |
+------+--------------------------------------+--------------------------+
|a1 or | parse regs: |
|later | gpio/mux (without ao domain) |
|SoCs | fixup: |
| | pull = gpio; pull-enable = gpio; ds = gpio; |
+------+-----------------------------------------------------------------+
Since m8-axg share the same ao fixup, make a common function
meson8_aobus_parse_dt_extra to do the job.
Signed-off-by: Qianggui Song <qianggui.song@amlogic.com>
Link: https://lore.kernel.org/r/1573819429-6937-2-git-send-email-qianggui.song@amlogic.com
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Some devices do not make use of the CMD0/DAT0/DAT2 direction control
pins of the MMC/SD card 0 interface. In this case we should leave
those pins unconfigured.
A similar case already exists for "mc1_a_1" vs "mc1_a_2"
when the MC1_FBCLK pin is not used.
Add a new "mc0_a_2" pin group which is equal to "mc0_a_1" except
with the MC0_CMDDIR, MC0_DAT0DIR and MC0_DAT2DIR pins removed.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20191117205439.239211-1-stephan@gerhold.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Some GPIOs are marked as wakeup capable and are routed to another
interrupt controller that is an always-domain and can detect interrupts
even when most of the SoC is powered off. The wakeup interrupt
controller wakes up the GIC and replays the interrupt at the GIC.
Setup the TLMM irqchip in hierarchy with the wakeup interrupt controller
and ensure the wakeup GPIOs are handled correctly.
Co-developed-by: Maulik Shah <mkshah@codeaurora.org>
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1573855915-9841-9-git-send-email-ilina@codeaurora.org
----
Changes in v2:
- Address review comments
- Fix Co-developed-by tag
Changes in v1:
- Address minor review comments
- Remove redundant call to set irq handler
- Move irq_domain_qcom_handle_wakeup() to this patch
Changes in RFC v2:
- Rebase on top of GPIO hierarchy support in linux-next
- Set the chained irq handler for summary line
* Intel Tigerlake pin controller support has been added.
* Miscellaneous fixes to the main and Cherryview drivers.
* Refactoring of the context restoring in the main driver.
The following is an automated git shortlog grouped by driver:
cherryview:
- Missed type change to unsigned int
- Allocate IRQ chip dynamic
- Fix spelling mistake in the comment
- Fix irq_valid_mask calculation
intel:
- Missed type change to unsigned int
- Add Intel Tiger Lake pin controller support
- Use helper to restore register values on ->resume()
- Drop level from warning to debug in intel_restore_hostown()
- Introduce intel_restore_intmask() helper
- Introduce intel_restore_hostown() helper
- Introduce intel_restore_padcfg() helper
- Avoid potential glitches if pin is in GPIO mode
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Merge tag 'intel-pinctrl-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into devel
intel-pinctrl for v5.5-1
* Intel Tigerlake pin controller support has been added.
* Miscellaneous fixes to the main and Cherryview drivers.
* Refactoring of the context restoring in the main driver.
The following is an automated git shortlog grouped by driver:
cherryview:
- Missed type change to unsigned int
- Allocate IRQ chip dynamic
- Fix spelling mistake in the comment
- Fix irq_valid_mask calculation
intel:
- Missed type change to unsigned int
- Add Intel Tiger Lake pin controller support
- Use helper to restore register values on ->resume()
- Drop level from warning to debug in intel_restore_hostown()
- Introduce intel_restore_intmask() helper
- Introduce intel_restore_hostown() helper
- Introduce intel_restore_padcfg() helper
- Avoid potential glitches if pin is in GPIO mode
We converted 'unsigned' type to be 'unsigned int' in the driver,
but there are couple of leftovers. So, finish the task now.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
We converted 'unsigned' type to be 'unsigned int' in the driver,
but there are couple of leftovers. So, finish the task now.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
With stmfx_pinctrl_gpio_init_valid_mask callback, gpio_valid_mask was used
to initialize gpiochip valid_mask for gpiolib. But gpio_valid_mask was not
yet initialized. gpio_valid_mask required gpio-ranges to be registered,
this is the case after gpiochip_add_data call. But init_valid_mask
callback is also called under gpiochip_add_data. gpio_valid_mask
initialization cannot be moved before gpiochip_add_data because
gpio-ranges are not registered.
So, it is not possible to use init_valid_mask callback.
To avoid this issue, get rid of valid_mask and rely on ranges.
Fixes: da9b142ab2 ("pinctrl: stmfx: Use the callback to populate valid_mask")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20191104100908.10880-1-amelie.delaunay@st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The PM8950 features 8 GPIOs with hole in 3 and PMI8950 has
only two; these PMICs are totally compatible with this driver.
Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com>
Link: https://lore.kernel.org/r/20191031103507.30678-2-kholk11@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The get_direction api is strongly recommended to be implemented. In fact
if it is not implemented gpio-hogs will not get the correct direction.
Add an implementation of get_direction for the nsp-gpio driver.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20191104001819.2300-3-chris.packham@alliedtelesis.co.nz
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Use more of the gpiolib infrastructure for handling interrupts. The
root interrupt still needs to be handled manually as it is shared with
other peripherals on the SoC.
This will allow multiple instances of this driver to be supported and
will clean up gracefully on failure thanks to the device managed APIs.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20191104001819.2300-2-chris.packham@alliedtelesis.co.nz
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The SDC_QDSD_PINGROUP/UFS_RESET macros are missing the .tile info needed to
calculate the right register offsets. Adding them here and also
adjusting the offsets accordingly.
Fixes: f2ae04c45b ("pinctrl: qcom: Add SC7180 pinctrl driver")
Reported-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Link: https://lore.kernel.org/r/20191021141507.24066-1-rnayak@codeaurora.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
On SAM9X60, slewrate should be enabled on pins with a switching frequency
below 50Mhz. Since most of our pins do not exceed this value, we enable
slewrate by default. Pins with a switching value that exceeds 50Mhz will
have to explicitly disable slewrate.
This patch changes the ABI. However, the slewrate macros are only used
by SAM9X60 and, at this moment, there are no device-tree files available
for this platform.
Suggested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20191101092031.24896-1-codrin.ciubotariu@microchip.com
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- Add support for the new R-Car M3-W+ (r8a77961) SoC,
- Small fixes and cleanups.
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Merge tag 'sh-pfc-for-v5.5-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: sh-pfc: Updates for v5.5 (take two)
- Add support for the new R-Car M3-W+ (r8a77961) SoC,
- Small fixes and cleanups.
The definitions for bit field [19:18] of the Peripheral Function Select
Register 3 were accidentally copied from bit field [20], leading to
duplicates for the TCLK1_B function, and missing TCLK0, CAN_CLK_B, and
ET0_ETXD4 functions.
Fix this by adding the missing GPIO_FN_CAN_CLK_B and GPIO_FN_ET0_ETXD4
enum values, and correcting the functions.
Reported-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20191024131308.16659-1-geert+renesas@glider.be
Add support for the Pin Function Controller in the R-Car M3-W+
(R8A77961) SoC.
R-Car M3-W+ is pin compatible with R-Car M3-W (R8A77960), which allows
for both SoCs to share a driver.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20191023122955.12420-4-geert+renesas@glider.be
Rename CONFIG_PINCTRL_PFC_R8A7796 for R-Car M3-W (R8A77960) to
CONFIG_PINCTRL_PFC_R8A77960, to avoid confusion with R-Car M3-W+
(R8A77961), which will use CONFIG_PINCTRL_PFC_R8A77961.
Extend the dependency of CONFIG_PINCTRL_PFC_R8A77960 from
CONFIG_ARCH_R8A7796 to CONFIG_ARCH_R8A77960, to relax dependencies for a
future rename of the SoC configuration symbol.
Rename r8a7796_pinmux_info to r8a77960_pinmux_info, as it contains an
r8a77960-based name.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20191023122955.12420-3-geert+renesas@glider.be
As platform_get_irq() now prints an error when the interrupt does not
exist, counting interrupts by looping until failure causes the printing
of scary messages like:
sh-pfc e6060000.pin-controller: IRQ index 0 not found
Fix this by using the platform_irq_count() helper instead.
Fixes: 7723f4c5ec ("driver core: platform: Add an error message to platform_get_irq*()")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20191016142601.28255-1-geert+renesas@glider.be
This driver adds pinctrl/GPIO support for Intel Tiger Lake SoC. The
GPIO controller is based on the next generation GPIO hardware but still
compatible with the one supported by the Intel core pinctrl/GPIO driver.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
We can restore only values that had been changed and do not spam kernel log
with unnecessary messages. Convert intel_gpio_update_pad_mode() to a helper
function that will be used across few callers.
Suggested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Since we didn't get any new reports from users about wrong settings
of pad ownership, there is no point to spam kernel log with it. Thus,
drop level from warning to debug.
Also, modify format to be in align with the rest restore helpers.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Refactor restoring GPI_IE registers by using an introduced helper.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Refactor restoring HOSTSW_OWN registers by using an introduced helper.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Deduplicate restoring PADCFGx registers by using a common helper.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Keeping the IRQ chip definition static shares it with multiple instances
of the GPIO chip in the system. This is bad and now we get this warning
from GPIO library:
"detected irqchip that is shared with multiple gpiochips: please fix the driver."
Hence, move the IRQ chip definition from being driver static into the struct
intel_pinctrl. So a unique IRQ chip is used for each GPIO chip instance.
This patch is heavily based on the attachment to the bug by Christoph Marz.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=202543
Fixes: 6e08d6bbeb ("pinctrl: Add Intel Cherryview/Braswell pin controller support")
Depends-on: 83b9dc1131 ("pinctrl: cherryview: Associate IRQ descriptors to irqdomain")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
One spelling mistake is being fixed: benerate -> generate.
It is a complimentary fix to the commit 505485a83c ("pinctrl:
cherryview fixed typo in comment").
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Commit 03c4749dd6 ("gpio / ACPI: Drop unnecessary ACPI GPIO to Linux
GPIO translation") has made the cherryview gpio numbers sparse, to get
a 1:1 mapping between ACPI pin numbers and gpio numbers in Linux.
This has greatly simplified things, but the code setting the
irq_valid_mask was not updated for this, so the valid mask is still in
the old "compressed" numbering with the gaps in the pin numbers skipped,
which is wrong as irq_valid_mask needs to be expressed in gpio numbers.
This results in the following error on devices using pin 24 (0x0018) on
the north GPIO controller as an ACPI event source:
[ 0.422452] cherryview-pinctrl INT33FF:01: Failed to translate GPIO to IRQ
This has been reported (by email) to be happening on a Caterpillar CAT T20
tablet and I've reproduced this myself on a Medion Akoya e2215t 2-in-1.
This commit uses the pin number instead of the compressed index into
community->pins to clear the correct bits in irq_valid_mask for GPIOs
using GPEs for interrupts, fixing these errors and in case of the
Medion Akoya e2215t also fixing the LID switch not working.
Cc: stable@vger.kernel.org
Fixes: 03c4749dd6 ("gpio / ACPI: Drop unnecessary ACPI GPIO to Linux GPIO translation")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
When consumer requests a pin, in order to be on the safest side,
we switch it first to GPIO mode followed by immediate transition
to the input state. Due to posted writes it's luckily to be a single
I/O transaction.
However, if firmware or boot loader already configures the pin
to the GPIO mode, user expects no glitches for the requested pin.
We may check if the pin is pre-configured and leave it as is
till the actual consumer toggles its state to avoid glitches.
Fixes: 7981c0015a ("pinctrl: intel: Add Intel Sunrisepoint pin controller and GPIO support")
Depends-on: f5a26acf01 ("pinctrl: intel: Initialize GPIO properly when used through irqchip")
Cc: stable@vger.kernel.org
Cc: fei.yang@intel.com
Reported-by: Oliver Barta <oliver.barta@aptiv.com>
Reported-by: Malin Jonsson <malin.jonsson@ericsson.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
A couple more fixes for Intel pinctrl drivers:
- Try to avoid glitches when pin is in GPIO mode
- Fix cherryview irq_valid_mask calculation
- Allocate cherryview IRQ chip dynamically to avoid triggering warning
from GPIO core
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Merge tag 'intel-pinctrl-fixes-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into fixes
intel-pinctrl fixes for v5.4 part 2
A couple more fixes for Intel pinctrl drivers:
- Try to avoid glitches when pin is in GPIO mode
- Fix cherryview irq_valid_mask calculation
- Allocate cherryview IRQ chip dynamically to avoid triggering warning
from GPIO core
Keeping the IRQ chip definition static shares it with multiple instances
of the GPIO chip in the system. This is bad and now we get this warning
from GPIO library:
"detected irqchip that is shared with multiple gpiochips: please fix the driver."
Hence, move the IRQ chip definition from being driver static into the struct
intel_pinctrl. So a unique IRQ chip is used for each GPIO chip instance.
This patch is heavily based on the attachment to the bug by Christoph Marz.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=202543
Fixes: 6e08d6bbeb ("pinctrl: Add Intel Cherryview/Braswell pin controller support")
Depends-on: 83b9dc1131 ("pinctrl: cherryview: Associate IRQ descriptors to irqdomain")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
- Add support for the new RZ/G2N (r8a774b1) SoC,
- Small fixes and cleanups.
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Merge tag 'sh-pfc-for-v5.5-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: sh-pfc: Updates for v5.5
- Add support for the new RZ/G2N (r8a774b1) SoC,
- Small fixes and cleanups.
Commit 03c4749dd6 ("gpio / ACPI: Drop unnecessary ACPI GPIO to Linux
GPIO translation") has made the cherryview gpio numbers sparse, to get
a 1:1 mapping between ACPI pin numbers and gpio numbers in Linux.
This has greatly simplified things, but the code setting the
irq_valid_mask was not updated for this, so the valid mask is still in
the old "compressed" numbering with the gaps in the pin numbers skipped,
which is wrong as irq_valid_mask needs to be expressed in gpio numbers.
This results in the following error on devices using pin 24 (0x0018) on
the north GPIO controller as an ACPI event source:
[ 0.422452] cherryview-pinctrl INT33FF:01: Failed to translate GPIO to IRQ
This has been reported (by email) to be happening on a Caterpillar CAT T20
tablet and I've reproduced this myself on a Medion Akoya e2215t 2-in-1.
This commit uses the pin number instead of the compressed index into
community->pins to clear the correct bits in irq_valid_mask for GPIOs
using GPEs for interrupts, fixing these errors and in case of the
Medion Akoya e2215t also fixing the LID switch not working.
Cc: stable@vger.kernel.org
Fixes: 03c4749dd6 ("gpio / ACPI: Drop unnecessary ACPI GPIO to Linux GPIO translation")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
When consumer requests a pin, in order to be on the safest side,
we switch it first to GPIO mode followed by immediate transition
to the input state. Due to posted writes it's luckily to be a single
I/O transaction.
However, if firmware or boot loader already configures the pin
to the GPIO mode, user expects no glitches for the requested pin.
We may check if the pin is pre-configured and leave it as is
till the actual consumer toggles its state to avoid glitches.
Fixes: 7981c0015a ("pinctrl: intel: Add Intel Sunrisepoint pin controller and GPIO support")
Depends-on: f5a26acf01 ("pinctrl: intel: Initialize GPIO properly when used through irqchip")
Cc: stable@vger.kernel.org
Cc: fei.yang@intel.com
Reported-by: Oliver Barta <oliver.barta@aptiv.com>
Reported-by: Malin Jonsson <malin.jonsson@ericsson.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
For the new Spreadtrum pin controller, it expands 6bits to describe the
pin sleep mode with adding one CM4_SLEEP mode, which means the pin sleep
related configuration will be loaded automatically by hardware when the
CM4 system goes into deep sleep mode.
Signed-off-by: Bruce Chen <bruce.chen@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Link: https://lore.kernel.org/r/8ae52263b0625c416461821c457e6789b67170b6.1571228451.git.baolin.wang@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
AST2600 EMMC support 3 types DAT bus sizes (1, 4 and 8-bit),
corresponding to 3 groups: EMMCG1, EMMCG4 and EMMCG8
Fixes: 58dc52ad00a0 ("pinctrl: aspeed: Add AST2600 pinmux support")
Signed-off-by: Johnny Huang <johnny_huang@aspeedtech.com>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20191008044153.12734-8-andrew@aj.id.au
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When UART13G1 is set the pinmux configuration in SCU4B8 for UART13G0
should be cleared.
Fixes: 58dc52ad00a0 ("pinctrl: aspeed: Add AST2600 pinmux support")
Signed-off-by: Johnny Huang <johnny_huang@aspeedtech.com>
[AJ: Tweak commit message]
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20191008044153.12734-7-andrew@aj.id.au
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signal descriptors can represent multi-bit bitfields and so have
explicit "enable" and "disable" states. However many descriptor
instances only describe a single bit, and so the SIG_DESC_SET() macro is
provides an abstraction for the single-bit cases: Its expansion
configures the "enable" state to set the bit and "disable" to clear.
SIG_DESC_CLEAR() was introduced to provide a similar single-bit
abstraction for for descriptors to clear the bit of interest. However
its behaviour was defined as the literal inverse of SIG_DESC_SET() - the
impact is the bit of interest is set in the disable path. This behaviour
isn't intuitive and doesn't align with how we want to use the macro in
practice, so make it clear the bit for both the enable and disable
paths.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20191008044153.12734-6-andrew@aj.id.au
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The documentation to configure I3C3/FSI1 and I3C4/FSI2 was initially
unclear.
Fixes: 58dc52ad00a0 ("pinctrl: aspeed: Add AST2600 pinmux support")
Signed-off-by: Johnny Huang <johnny_huang@aspeedtech.com>
[AJ: Tweak commit message, resolve rebase conflicts]
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20191008044153.12734-5-andrew@aj.id.au
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The I2C function the pin participated in was incorrectly named SDA14
which lead to a failure to mux:
[ 6.884344] No function I2C14 found on pin 7 (7). Found signal(s) MACLINK4, SDA14, GPIOA7 for function(s) MACLINK4, SDA14, GPIOA7
Fixes: 58dc52ad00a0 ("pinctrl: aspeed: Add AST2600 pinmux support")
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20191008044153.12734-4-andrew@aj.id.au
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Some pins crept in that weren't ordered in the list.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20191008044153.12734-3-andrew@aj.id.au
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion.
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20191014111154.9731-2-linus.walleij@linaro.org
The latent IRQs are IRQs that have occurred when the system
was down in deep sleep and the GPIO block was powered off.
The PRCMU (power reset and control unit) knows which GPIO
line offset fired an IRQ to wake the system up (if so
desired) and this second IRQ was used to replay the action
when the system came back online after suspend().
This is now known to be the wrong approach to solve this
problem: in a patch series Lina Iyer has suggested to
instead make it possible to model the IRQs as hierarchical
with double parents.
Also the current device trees do not contain the right
information to make this code work, the latent IRQ is not
specified nowadays giving noise like this in the console:
[ 0.612168] gpio 8012e000.gpio: IRQ index 1 not found
[ 0.622523] gpio 8012e080.gpio: IRQ index 1 not found
Let's delete the latent IRQ code and reimplement it properly
when we need it.
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20191014111154.9731-1-linus.walleij@linaro.org
When an STMFX IO is used as interrupt through the interrupt-controller
binding, the STMFX driver should configure this IO as input. Default
value of STMFX IO direction is input, but if the IO is used as output
before the interrupt use, it will not work without these callbacks.
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20191009091606.17283-1-amelie.delaunay@st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add the pinctrl driver to support pin configuration with the
pinctrl framework on MSM8976, MSM8956, APQ8056, APQ8076.
Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com>
Link: https://lore.kernel.org/r/20191005105936.31216-2-kholk11@gmail.com
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion.
Cc: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Zhou Yanjie <zhouyanjie@zoho.com>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20191001133209.17164-1-linus.walleij@linaro.org
Add support for the PM6150 and PM6150L GPIO support to the
Qualcomm PMIC GPIO binding.
Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
Link: https://lore.kernel.org/r/1570188039-22122-1-git-send-email-kgunda@codeaurora.org
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion.
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: James Hartley <james.hartley@sondrel.com>
Link: https://lore.kernel.org/r/20191001214536.18477-1-linus.walleij@linaro.org
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion.
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Gregory CLEMENT <gregory.clement@bootlin.com>
Cc: Marek Behún <marek.behun@nic.cz>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20191002121550.16104-1-linus.walleij@linaro.org
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion.
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20191002114454.9684-1-linus.walleij@linaro.org
The function should be spdifib, fix this typo.
Fixes: 423ddc580b ("pinctrl: berlin: add the as370 SoC pinctrl driver")
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20191011154321.44f08f9a@xhacker.debian
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion.
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20191002113819.4927-1-linus.walleij@linaro.org
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion: the ST pin controller errors out of adding a
irqchip if the interrupt is invalid or missing or if the
irqmux is not present: the irqchip should not be added
if either of these errors happen, so rewrite the code to
deal with that. Keep the exit path where the gpio_chip
is added no matter what the status of the irq is.
Cc: Benjamin Gaignard <benjamin.gaignard@st.com>
Cc: Amelie Delaunay <amelie.delaunay@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20191001135147.29416-1-linus.walleij@linaro.org
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion: at91 is a little bit special since it registers
up to 3 gpio_chips with the same parent handler, but just
passing girq->parent_handler and the parent on the first
of them should cut it.
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Link: https://lore.kernel.org/r/20191001130645.8350-1-linus.walleij@linaro.org
This patch allows PINMUX_IPSR_PHYS() to set bits in GPSR.
When assigning function to pin, GPSR should be set to peripheral
function.
For example when using SCL3, GPSR2 bit7 (PWM1_A pin) should be set to
peripheral function.
Signed-off-by: Keiya Nobuta <nobuta.keiya@fujitsu.com>
Link: https://lore.kernel.org/r/20191008060112.29819-1-nobuta.keiya@fujitsu.com
Fixes: 50d1ba1764 ("pinctrl: sh-pfc: Add physical pin multiplexing helper macros")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Don't populate the array reg_drive on the stack but instead make it
static. Makes the object code smaller by 32 bytes.
Before:
text data bss dec hex filename
31991 15696 0 47687 ba47 drivers/pinctrl/pinctrl-rzn1.o
After:
text data bss dec hex filename
31863 15792 0 47655 ba27 drivers/pinctrl/pinctrl-rzn1.o
(gcc version 9.2.1, amd64)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20191007140559.11840-1-colin.king@canonical.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This includes two fixes for Intel pinctrl drivers:
- Fix warning about shared irqchip
- Restore Strago DMI workaround for all versions
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Merge tag 'intel-pinctrl-fixes-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into fixes
intel-pinctrl fixes for v5.4
This includes two fixes for Intel pinctrl drivers:
- Fix warning about shared irqchip
- Restore Strago DMI workaround for all versions
The configuration registers for the LED group have inverted
polarity, which puts the GPIO into open-drain state when used in
GPIO mode. Switch to '0' for GPIO and '1' for LED modes.
Fixes: 87466ccd94 ("pinctrl: armada-37xx: Add pin controller support for Armada 37xx")
Signed-off-by: Patrick Williams <alpawi@amazon.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191001155154.99710-1-alpawi@amazon.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
dev_get_platdata(&pdev->dev) returns a pointer on struct stmfx_pinctrl,
not on struct stmfx (platform_set_drvdata(pdev, pctl); in probe).
Pointer on struct stmfx is stored in driver data of pdev parent (in probe:
struct stmfx *stmfx = dev_get_drvdata(pdev->dev.parent);).
Fixes: 1490d9f841 ("pinctrl: Add STMFX GPIO expander Pinctrl/GPIO driver")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20191004122342.22018-1-amelie.delaunay@st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
platform_get_irq() can return an error code. Allow for this when getting
the irq.
Fixes: 6f265e5d4d ("pinctrl: bcm-iproc: Pass irqchip when adding gpiochip")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Link: https://lore.kernel.org/r/20191003000310.17099-2-chris.packham@alliedtelesis.co.nz
Acked-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Use the dev_name(dev) for the irqc->name so that we get unique names
when we have multiple instances of this driver.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Link: https://lore.kernel.org/r/20191003000310.17099-3-chris.packham@alliedtelesis.co.nz
Acked-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The pinctrl->functions[] array has pinctrl->num_functions elements and
the pinctrl->groups[] array is the same way. These are set in
ns2_pinmux_probe(). So the > comparisons should be >= so that we don't
read one element beyond the end of the array.
Fixes: b5aa1006e4 ("pinctrl: ns2: add pinmux driver support for Broadcom NS2 SoC")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20190926081426.GB2332@mwanda
Acked-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This convert the BCM IPROC driver to use the SPDX header
for indicating GPL v2.0 only licensing.
Cc: Pramod Kumar <pramodku@broadcom.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Scott Branden <scott.branden@broadcom.com>
Link: https://lore.kernel.org/r/20191002130217.4491-1-linus.walleij@linaro.org
The 37xx configuration registers are only 32 bits long, so
pins 32-35 spill over into the next register. The calculation
for the register address was done, but the bitmask was not, so
any configuration to pin 32 or above resulted in a bitmask that
overflowed and performed no action.
Fix the register / offset calculation to also adjust the offset.
Fixes: 5715092a45 ("pinctrl: armada-37xx: Add gpio support")
Signed-off-by: Patrick Williams <alpawi@amazon.com>
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191001154634.96165-1-alpawi@amazon.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The helper pinctrl_dt_has_hogs() was introduced in
99e4f67508 (pinctrl: core: Use delayed work for hogs), but the sole
use then got removed shortly after in 950b0d91dc (pinctrl: core: Fix
regression caused by delayed work for hogs).
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20190923142005.5632-1-linux@rasmusvillemoes.dk
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add a comment about why the call to of_match_node() cannot be replaced
by of_device_get_match_data(). This will hopefully prevent people from
attempting to clean this up in the future.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20190923095400.GA11084@ulmo
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The call to pinctrl_count_index_with_args checks for a -EINVAL return
however this function calls pinctrl_get_list_and_count and this can
return -ENOENT. Rather than check for a specific error, fix this by
checking for any error return to catch the -ENOENT case.
Addresses-Coverity: ("Improper use of negative")
Fixes: 003910ebc8 ("pinctrl: Introduce TI IOdelay configuration driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190920122030.14340-1-colin.king@canonical.com
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Now that the GPIO core has support for hierarchical IRQ chips, convert
Qualcomm's ssbi-gpio over to use these new helpers to reduce duplicated
code across drivers.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Link: https://lore.kernel.org/r/20190914111010.24384-1-masneyb@onstation.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When populating the pinctrl mapping table entries for a device, the
'dev_name' field for each entry is initialised to point directly at the
string returned by 'dev_name()' for the device and subsequently used by
'create_pinctrl()' when looking up the mappings for the device being
probed.
This is unreliable in the presence of calls to 'dev_set_name()', which may
reallocate the device name string leaving the pinctrl mappings with a
dangling reference. This then leads to a use-after-free every time the
name is dereferenced by a device probe:
| BUG: KASAN: invalid-access in strcmp+0x20/0x64
| Read of size 1 at addr 13ffffc153494b00 by task modprobe/590
| Pointer tag: [13], memory tag: [fe]
|
| Call trace:
| __kasan_report+0x16c/0x1dc
| kasan_report+0x10/0x18
| check_memory_region
| __hwasan_load1_noabort+0x4c/0x54
| strcmp+0x20/0x64
| create_pinctrl+0x18c/0x7f4
| pinctrl_get+0x90/0x114
| devm_pinctrl_get+0x44/0x98
| pinctrl_bind_pins+0x5c/0x450
| really_probe+0x1c8/0x9a4
| driver_probe_device+0x120/0x1d8
Follow the example of sysfs, and duplicate the device name string before
stashing it away in the pinctrl mapping entries.
Cc: Linus Walleij <linus.walleij@linaro.org>
Reported-by: Elena Petrova <lenaptr@google.com>
Tested-by: Elena Petrova <lenaptr@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20191002124206.22928-1-will@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Implement .get_multiple and .set_multiple to allow reading or setting
multiple pins simultaneously. Pins in the same bank will all be switched at
the same time, improving synchronization and performances.
Keep the driver future proof by allowing its use on 64bits platforms if
they ever appear with this IP and we end up with a mismatch between
ATMEL_PIO_NPINS_PER_BANK and BITS_PER_LONG.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Link: https://lore.kernel.org/r/20190918113657.25998-1-alexandre.belloni@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Several functions use for_each_child_of_node() loop with a break to find
a matching child node. Although each iteration of
for_each_child_of_node puts the previous node, but early exit from loop
misses it. This leads to leak of device node.
Cc: <stable@vger.kernel.org>
Fixes: 9a2c1c3b91 ("pinctrl: samsung: Allow grouping multiple pinmux/pinconf nodes")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
In s3c64xx_eint_eint0_init() the for_each_child_of_node() loop is used
with a break to find a matching child node. Although each iteration of
for_each_child_of_node puts the previous node, but early exit from loop
misses it. This leads to leak of device node.
Cc: <stable@vger.kernel.org>
Fixes: 61dd726131 ("pinctrl: Add pinctrl-s3c64xx driver")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
In s3c24xx_eint_init() the for_each_child_of_node() loop is used with a
break to find a matching child node. Although each iteration of
for_each_child_of_node puts the previous node, but early exit from loop
misses it. This leads to leak of device node.
Cc: <stable@vger.kernel.org>
Fixes: af99a75074 ("pinctrl: Add pinctrl-s3c24xx driver")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
In exynos_eint_wkup_init() the for_each_child_of_node() loop is used
with a break to find a matching child node. Although each iteration of
for_each_child_of_node puts the previous node, but early exit from loop
misses it. This leads to leak of device node.
Cc: <stable@vger.kernel.org>
Fixes: 43b169db18 ("pinctrl: add exynos4210 specific extensions for samsung pinctrl driver")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Each iteration of for_each_child_of_node puts the previous node, but in
the case of a return from the middle of the loop, there is no put, thus
causing a memory leak. Hence add an of_node_put before the return of
exynos_eint_wkup_init() error path.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Cc: <stable@vger.kernel.org>
Fixes: 14c255d35b ("pinctrl: exynos: Add irq_chip instance for Exynos7 wakeup interrupts")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
This is essentially a revert of:
e3f72b749d pinctrl: cherryview: fix Strago DMI workaround
86c5dd6860 pinctrl: cherryview: limit Strago DMI workarounds to version 1.0
because even with 1.1 versions of BIOS there are some pins that are
configured as interrupts but not claimed by any driver, and they
sometimes fire up and result in interrupt storms that cause touchpad
stop functioning and other issues.
Given that we are unlikely to qualify another firmware version for a
while it is better to keep the workaround active on all Strago boards.
Reported-by: Alex Levin <levinale@chromium.org>
Fixes: 86c5dd6860 ("pinctrl: cherryview: limit Strago DMI workarounds to version 1.0")
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Alex Levin <levinale@chromium.org>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Keeping the IRQ chip definition static shares it with multiple instances of
the GPIO chip in the system. This is bad and now we get this warning from
GPIO library:
"detected irqchip that is shared with multiple gpiochips: please fix the driver."
Hence, move the IRQ chip definition from being driver static into the struct
intel_pinctrl. So a unique IRQ chip is used for each GPIO chip instance.
Fixes: ee1a6ca43d ("pinctrl: intel: Add Intel Broxton pin controller support")
Depends-on: 5ff56b015e ("pinctrl: intel: Disable GPIO pin interrupts in suspend")
Reported-by: Federico Ricchiuto <fed.ricchiuto@gmail.com>
Suggested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Renesas RZ/G2N (r8a774b1) is pin compatible with R-Car M3-N (r8a77965),
however it doesn't have several automotive specific peripherals. Add
a r8a77965 specific pin groups/functions along with common pin
groups/functions for supporting both r8a77965 and r8a774b1 SoC.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Link: https://lore.kernel.org/r/1568881036-4404-9-git-send-email-biju.das@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This reverts commit e167d723e1.
According to the R-Car Gen3 Hardware Manual Errata for Rev 1.00 of Aug
24, 2018, the SEL_SIMCARD_{0,1} definition was to be deleted. However,
this errata merely fixed an accidental double definition in the Hardware
User's Manual Rev. 1.00. The real definition is still present in later
revisions of the manual (Rev. 1.50 and Rev. 2.00).
Hence revert the commit to recover the definition.
Based on a patch in the BSP by Takeshi Kihara
<takeshi.kihara.df@renesas.com>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Link: https://lore.kernel.org/r/20190904121658.2617-4-geert+renesas@glider.be
This reverts commit e87882eb9b.
According to the R-Car Gen3 Hardware Manual Errata for Rev 1.00 of Aug
24, 2018, the SEL_SSI2_{0,1} definition was to be deleted. However,
this errata merely fixed an accidental double definition in the Hardware
User's Manual Rev. 1.00. The real definition is still present in later
revisions of the manual (Rev. 1.50 and Rev. 2.00).
Hence revert the commit to recover the definition.
Based on a patch in the BSP by Takeshi Kihara
<takeshi.kihara.df@renesas.com>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Link: https://lore.kernel.org/r/20190904121658.2617-3-geert+renesas@glider.be
The Hardware Manual Errata for Rev. 1.50 of April 10, 2019 renamed IPSR2
register bit[23:20] value H'3 and register bit[27:24] value H'3 from
AVB_AVTP_MATCH_A resp. AVB_AVTP_CAPTURE_A to AVB_AVTP_MATCH resp.
AVB_AVTP_CAPTURE.
Update the R-Car E3 pin control driver to reflect this.
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[geert: Reword, reference errata]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Link: https://lore.kernel.org/r/20190904121658.2617-2-geert+renesas@glider.be
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion.
Cc: Barry Song <baohua@kernel.org>
Cc: Yuping Luo <yuping.luo@csr.com>
Cc: Rongjun Ying <rongjun.ying@csr.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20190913113530.5536-6-linus.walleij@linaro.org
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion.
Cc: Barry Song <baohua@kernel.org>
Cc: Yuping Luo <yuping.luo@csr.com>
Cc: Rongjun Ying <rongjun.ying@csr.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20190913113530.5536-5-linus.walleij@linaro.org
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion.
Cc: Tomer Maimon <tmaimon77@gmail.com>
Cc: Kun Yi <kunyi@google.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20190913113530.5536-4-linus.walleij@linaro.org
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion.
Cc: Shiraz Hashim <shiraz.linux.kernel@gmail.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20190913113530.5536-3-linus.walleij@linaro.org
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion.
Cc: Joshua Henderson <joshua.henderson@microchip.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20190913113530.5536-2-linus.walleij@linaro.org
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion.
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20190913113530.5536-1-linus.walleij@linaro.org
cycle:
Core changes:
- Fix errors in example code in the documentation.
New drivers:
- Add support for JZ4760, JZ4760B, X1000, X1000E and X1500 to
the Ingenic driver.
- Support Cirrus Logic Madera CS47L92 and CS47L15.
- Support Allwinner Sunxi V3S.
- Support Aspeed 2600 BMC.
- Support Qualcomm SC7180.
- Support Marvell MVEBU CS115.
Driver improvements:
- Clean up a few drivers to use the devm_platform_ioremap_resource()
helper.
- Pass the irqchip when registering the gpio_chip in some pin
controllers that are also GPIO controllers.
- Support suspend/resume in the Tegra driver.
- Support pull-up on the Broadcom BCM2711.
- The Intel driver can now request locked pads.
- Fix the UFS reset pin in the Qualcomm SDM845 driver.
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Merge tag 'pinctrl-v5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes for the v5.4 kernel cycle:
Core changes:
- Fix errors in example code in the documentation.
New drivers:
- Add support for JZ4760, JZ4760B, X1000, X1000E and X1500 to the
Ingenic driver.
- Support Cirrus Logic Madera CS47L92 and CS47L15.
- Support Allwinner Sunxi V3S.
- Support Aspeed 2600 BMC.
- Support Qualcomm SC7180.
- Support Marvell MVEBU CS115.
Driver improvements:
- Clean up a few drivers to use the devm_platform_ioremap_resource()
helper.
- Pass the irqchip when registering the gpio_chip in some pin
controllers that are also GPIO controllers.
- Support suspend/resume in the Tegra driver.
- Support pull-up on the Broadcom BCM2711.
- The Intel driver can now request locked pads.
- Fix the UFS reset pin in the Qualcomm SDM845 driver"
* tag 'pinctrl-v5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (112 commits)
pinctrl: meson-gxbb: Fix wrong pinning definition for uart_c
pinctrl: sh-pfc: Unlock on error in sh_pfc_func_set_mux()
pinctrl: bcm: remove redundant assignment to pointer log
pinctrl: iproc: Add 'get_direction' support
pinctrl: iproc-gpio: Handle interrupts for multiple instances
pinctrl: iproc-gpio: Fix incorrect pinconf configurations
pinctrl: intel: mark intel_pin_to_gpio __maybe_unused
pinctrl: qcom: sdm845: Fix UFS_RESET pin
pinctrl: mvebu: add additional variant for standalone CP115
pinctrl: mvebu: Add CP110 missing pin functionality
dt-bindings: cp110: document the new CP115 pinctrl compatible
pinctrl: bcm2835: Pass irqchip when adding gpiochip
pinctrl: meson: meson: Add of_node_put() before return
pinctrl/gpio: Take MUX usage into account
dt-bindings: pinctrl: qcom-pmic-gpio: Add pm8150l support
dt-bindings: pinctrl: qcom-pmic-gpio: Add pm8150b support
dt-bindings: pinctrl: qcom-pmic-gpio: Add pm8150 support
pinctrl: amd: disable spurious-firing GPIO IRQs
pinctrl: rza2: Include the appropriate headers
pinctrl: rza2: Drop driver use of consumer flags
...
v5.4 kernel cycle.
Core changes:
- Support hierarchical GPIO irqchips. We now have three
consumers that can use this: Intel IXP4xx, ThunderX and
Qualcomm SPMI GPIO (in the pinctrl subsystem). The support
code has been long in the making and hashed out so it should
be easily adaptable for all hierarchical irqchip parents.
The code only gets compiled in if hierarchical irqchip
is used at the topmost irq controller at least, as the
hierarchical irqchip requires strict hierarchy all the
way up in the system.
- Determine the need for a "valid_mask" for GPIO lines on the
gpio_chip and conversely for the "valid_mask" for the GPIO
interrupt chip interrupt lines by looking for a
.init_valid_mask() callback in the main chip or GPIO interrupt
chip respectively. Allocate it with bitmap_alloc().
- Isolate the device tree/open firmware GPIO description code
out in its own file properly.
- Isolate the ACPI GPIO description code out in its own file
properly.
- Drop a whole lot of #ifdef:s in the main includes: it does
not hurt to keep the include items around, and we get
quicker and clearer compile failures if the appropriate
kernel symbols are not selected for drivers.
New/deleted drivers:
- New driver for Aspeed SGPIO.
- The KS8695 driver is deleted as the platform gets deleted
from arch/arm in this kernel cycle.
- The Cirrus Logic Madera driver now supports CS47L92 and
CS47L15.
- The Freescale MPC8xxx now supports LS1028A and LS1088A.
Driver improvements:
- We pass the GPIO irqchip intialization by directly filling
in the struct instead of using set-up functions (the new
way) for Intel MID, Lynxpoint, Merrifield, XLP, HLWD, Aspeed,
ZX, VF610, TQMX86, MT7621, Zynq and EP93xx.
Out-of-band changes:
- Fix a GPIO header inclusion in Unicore - no response from
maintainer.
- Drop FMC subsystem from MAINTAINERS - was deleted in the
GPIO tree last cycle so let's mop up the shards.
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Merge tag 'gpio-v5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of changes in the GPIO subsystem for the v5.4 kernel
cycle.
Core changes:
- Support hierarchical GPIO irqchips.
We now have three consumers that can use this: Intel IXP4xx,
ThunderX and Qualcomm SPMI GPIO (in the pinctrl subsystem).
The support code has been long in the making and hashed out so it
should be easily adaptable for all hierarchical irqchip parents.
The code only gets compiled in if hierarchical irqchip is used at
the topmost irq controller at least, as the hierarchical irqchip
requires strict hierarchy all the way up in the system.
- Determine the need for a "valid_mask" for GPIO lines on the
gpio_chip and conversely for the "valid_mask" for the GPIO
interrupt chip interrupt lines by looking for a .init_valid_mask()
callback in the main chip or GPIO interrupt chip respectively.
Allocate it with bitmap_alloc().
- Isolate the device tree/open firmware GPIO description code out in
its own file properly.
- Isolate the ACPI GPIO description code out in its own file
properly.
- Drop a whole lot of #ifdef:s in the main includes: it does not hurt
to keep the include items around, and we get quicker and clearer
compile failures if the appropriate kernel symbols are not selected
for drivers.
New/deleted drivers:
- New driver for Aspeed SGPIO.
- The KS8695 driver is deleted as the platform gets deleted from
arch/arm in this kernel cycle.
- The Cirrus Logic Madera driver now supports CS47L92 and CS47L15.
- The Freescale MPC8xxx now supports LS1028A and LS1088A.
Driver improvements:
- We pass the GPIO irqchip intialization by directly filling in the
struct instead of using set-up functions (the new way) for Intel
MID, Lynxpoint, Merrifield, XLP, HLWD, Aspeed, ZX, VF610, TQMX86,
MT7621, Zynq and EP93xx.
Out-of-band changes:
- Fix a GPIO header inclusion in Unicore - no response from
maintainer.
- Drop FMC subsystem from MAINTAINERS - was deleted in the GPIO tree
last cycle so let's mop up the shards"
* tag 'gpio-v5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (82 commits)
gpiolib: of: add a fallback for wlf,reset GPIO name
gpio: htc-egpio: Remove unused exported htc_egpio_get_wakeup_irq()
gpio: remove explicit comparison with 0
gpio: creg-snps: use devm_platform_ioremap_resource() to simplify code
gpio: devres: Switch to EXPORT_SYMBOL_GPL()
gpio: of: Switch to EXPORT_SYMBOL_GPL()
gpio: of: Make of_gpio_simple_xlate() private
gpio: of: Make of_get_named_gpiod_flags() private
gpio: aspeed: Add in ast2600 details to Aspeed driver
gpio: aspeed: Use ngpio property from device tree if available
gpio: aspeed: Setup irqchip dynamically
gpio/aspeed: Fix incorrect number of banks
gpio: aspeed: Update documentation with ast2600 controllers
gpio: Initialize the irqchip valid_mask with a callback
gpiolib: acpi: make acpi_can_fallback_to_crs() static
gpio: Fix further merge errors
gpio: Fix up merge collision in include file
gpio: of: Normalize return code variable name
gpio: gpiolib: Normalize return code variable name
gpio: ep93xx: Pass irqchip when adding gpiochip
...
We need to unlock and enable IRQs before we return on this error path.
Fixes: 8a0cc47ccc ("pinctrl: sh-pfc: Rollback to mux if required when the gpio is freed")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20190827093927.GB8443@mwanda
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Just a single fix for build warning introduced in the previous pull.
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Merge tag 'intel-pinctrl-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into devel
intel-pinctrl for v5.4 part 2
Just a single fix for build warning introduced in the previous pull.
The pointer log is being initialized with a value that is never read
and is being re-assigned a little later on. The assignment is
redundant and hence can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190905140919.29283-1-colin.king@canonical.com
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Commit 674fa8daa8 ("pinctrl: aspeed-g5: Delay acquisition of regmaps")
was determined to be a partial fix to the problem of acquiring the LPC
Host Controller and GFX regmaps: The AST2500 pin controller may need to
fetch syscon regmaps during expression evaluation as well as when
setting mux state. For example, this case is hit by attempting to export
pins exposing the LPC Host Controller as GPIOs.
An optional eval() hook is added to the Aspeed pinmux operation struct
and called from aspeed_sig_expr_eval() if the pointer is set by the
SoC-specific driver. This enables the AST2500 to perform the custom
action of acquiring its regmap dependencies as required.
John Wang tested the fix on an Inspur FP5280G2 machine (AST2500-based)
where the issue was found, and I've booted the fix on Witherspoon
(AST2500) and Palmetto (AST2400) machines, and poked at relevant pins
under QEMU by forcing mux configurations via devmem before exporting
GPIOs to exercise the driver.
Fixes: 7d29ed88ac ("pinctrl: aspeed: Read and write bits in LPC and GFX controllers")
Fixes: 674fa8daa8 ("pinctrl: aspeed-g5: Delay acquisition of regmaps")
Reported-by: John Wang <wangzqbj@inspur.com>
Tested-by: John Wang <wangzqbj@inspur.com>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20190829071738.2523-1-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When multiple instance of iproc-gpio chips are present, a fix up
message[1] is printed during the probe of second and later instances.
This issue is because driver sharing same irq_chip data structure
among multiple instances of driver.
Fix this by allocating irq_chip data structure per instance of
iproc-gpio.
[1] fix up message addressed by this patch
[ 7.862208] gpio gpiochip2: (689d0000.gpio): detected irqchip that
is shared with multiple gpiochips: please fix the driver.
Fixes: 616043d58a ("pinctrl: Rename gpio driver from cygnus to iproc")
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Link: https://lore.kernel.org/r/1567054348-19685-3-git-send-email-srinath.mannam@broadcom.com
[Rebased on top of new irq chip set-up code]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
After changing the valid_mask for the struct gpio_chip
to detect the need and presence of a valid mask with the
presence of a .init_valid_mask() callback to fill it in,
we augment the gpio_irq_chip to use the same logic.
Switch all driver using the gpio_irq_chio valid_mask
over to this new method.
This makes sure the valid_mask for the gpio_irq_chip gets
filled in when we add the gpio_chip, which makes it a
little easier to switch over drivers using the old
way of setting up gpio_irq_chip over to the new method
of passing the gpio_irq_chip along with the gpio_chip.
(See drivers/gpio/TODO for details.)
Cc: Joel Stanley <joel@jms.id.au>
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Link: https://lore.kernel.org/r/20190904140104.32426-1-linus.walleij@linaro.org
The intel_pin_to_gpio() function is only called by the
PM support functions and causes a warning when those are disabled:
drivers/pinctrl/intel/pinctrl-intel.c:841:12: error: unused function 'intel_pin_to_gpio' [-Werror,-Wunused-function]
Mark it __maybe_unused to suppress the warning.
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Chris Chiu <chiu@endlessm.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
The UFS_RESET pin is the magical pin #150 now, not 153 per the
sdm845_groups array declared in this file. Fix the order of pins so that
UFS_RESET is 150 and the SDC pins follow after.
Fixes: 53a5372ce3 ("pinctrl: qcom: sdm845: Expose ufs_reset as gpio")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20190830060227.12792-1-swboyd@chromium.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
A collection of improvements and fixes for Intel pinctrl drivers
including:
- Converting drivers to use new devm_platform_ioremap_resource()
helper function.
- Make Interrupt Status (IS) register configurable.
- Allow locked pins to be requested and used as long as they are not
modified.
- Fix intel_pinctrl_should_save() to translate pin number to GPIO
number where needed. This fixes Asus X571GT touchpad
unresponsiveness issue after suspend/resume cycle.
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Merge tag 'intel-pinctrl-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into devel
intel-pinctrl for v5.4
A collection of improvements and fixes for Intel pinctrl drivers
including:
- Converting drivers to use new devm_platform_ioremap_resource()
helper function.
- Make Interrupt Status (IS) register configurable.
- Allow locked pins to be requested and used as long as they are not
modified.
- Fix intel_pinctrl_should_save() to translate pin number to GPIO
number where needed. This fixes Asus X571GT touchpad
unresponsiveness issue after suspend/resume cycle.
With CP115 standalone modules, all MPP configuration are
possible. Handle this new possibility thanks to the new
"marvell,cp115-standalone-pinctrl" compatible property.
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
[<miquel.raynal@bootlin.com>: mention the new compatible in the
commit log]
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20190805101607.29811-4-miquel.raynal@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add missing definition for function 0xe on CP-110 MPP-62.
The pin function is Data Strobe for SDIO interface.
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20190805101607.29811-2-miquel.raynal@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We need to convert all old gpio irqchips to pass the irqchip
setup along when adding the gpio_chip. For more info see
drivers/gpio/TODO.
For chained irqchips this is a pretty straight-forward
conversion. The BCM2835 has multiple parents so let's
exploit the new facility in the GPIO_IRQCHIP to actually
deal with multiple parents.
Cc: Eric Anholt <eric@anholt.net>
Cc: Thierry Reding <treding@nvidia.com>
[Rebased on changes in the pinctrl tree]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/20190812062729.1892-1-linus.walleij@linaro.org
- Support switching between function and gpio at runtime,
- Small fixes and cleanups.
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Merge tag 'sh-pfc-for-v5.4-tag2' of https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: sh-pfc: Updates for v5.4 (take two)
- Support switching between function and gpio at runtime,
- Small fixes and cleanups.
Each iteration of for_each_child_of_node puts the previous node, but in
the case of a return from the middle of the loop, there is no put, thus
causing a memory leak. Hence add an of_node_put before the return.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190815060718.3286-1-nishkadg.linux@gmail.com
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The user space like gpioinfo only see the GPIO usage but not the
MUX usage (e.g. I2C or SPI usage) of a pin. As a user we want
to know which pin is free/safe to use. So take the MUX usage of
strict pinmux controllers into account to get a more realistic
view for ioctl GPIO_GET_LINEINFO_IOCTL.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Tested-by: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Ramon Fried <rfried.dev@gmail.com>
Link: https://lore.kernel.org/r/20190814110035.13451-1-ramon.fried@linux.intel.com
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When cold-booting Asus X434DA, GPIO 7 is found to be already configured
as an interrupt, and the GPIO level is found to be in a state that
causes the interrupt to fire.
As soon as pinctrl-amd probes, this interrupt fires and invokes
amd_gpio_irq_handler(). The IRQ is acked, but no GPIO-IRQ handler was
invoked, so the GPIO level being unchanged just causes another interrupt
to fire again immediately after.
This results in an interrupt storm causing this platform to hang
during boot, right after pinctrl-amd is probed.
Detect this situation and disable the GPIO interrupt when this happens.
This enables the affected platform to boot as normal. GPIO 7 actually is
the I2C touchpad interrupt line, and later on, i2c-multitouch loads and
re-enables this interrupt when it is ready to handle it.
Instead of this approach, I considered disabling all GPIO interrupts at
probe time, however that seems a little risky, and I also confirmed that
Windows does not seem to have this behaviour: the same 41 GPIO IRQs are
enabled under both Linux and Windows, which is a far larger collection
than the GPIOs referenced by the DSDT on this platform.
Signed-off-by: Daniel Drake <drake@endlessm.com>
Link: https://lore.kernel.org/r/20190814090540.7152-1-drake@endlessm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This driver is implementing a GPIO driver so include
<linux/gpio/driver.h> and not the legacy API <linux/gpio.h>.
When testing it turns out it also relies on implicit
inclusion of <linux/io.h> (readw etc) so make sure to
include that as well.
Cc: Chris Brandt <chris.brandt@renesas.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
These flags are for consumers of GPIO lines, not for
drivers.
Cc: Chris Brandt <chris.brandt@renesas.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Each iteration of for_each_child_of_node puts the previous node, but in
the case of a return from the middle of the loop, there is no put, thus
causing a memory leak. Hence add an of_node_put before the return in
three places.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This is a GPIO driver, use the appropriate header
<linux/gpio/driver.h> rather than the legacy <linux/gpio.h>
header.
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Some drivers require switching between function and gpio at run-time.
Allow to roll back from gpio to mux when the gpio is freed.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Each iteration of for_each_child_of_node puts the previous node, but in
the case of a return from the middle of the loop, there is no put, thus
causing a memory leak. Hence add an of_node_put before the return in
three places.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190815060609.3056-1-nishkadg.linux@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The ST pinctrl driver wants to provode a gpio_chip but is not
including the header for this, fix the inclusion to use the right
header. <linux/of_gpio.h> has to remain as the driver is calling
of_get_named_gpio().
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20190820111135.10701-1-linus.walleij@linaro.org
Static structures rk805_pinctrl_desc and rk805_gpio_chip, of types
gpio_chip and pinctrl_desc respectively, are not used except to be
copied into the fields of a different variable. Hence make
rk805_pinctrl_desc and rk805_gpio_chip both constant to protect them
from unintended modification.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190819075757.1753-1-nishkadg.linux@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch adds pinctrl register read to flush all the prior pinctrl
writes and then adds barrier for pinctrl register read to complete
during resume to make sure all pinctrl changes are effective.
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Link: https://lore.kernel.org/r/1565984527-5272-3-git-send-email-skomatineni@nvidia.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Andy Shevchenko