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* Intel Baytrail and Cherryview IRQ related fixes
The following is an automated git shortlog grouped by driver:
baytrail:
- Set IRQCHIP_SET_TYPE_MASKED flag on the irqchip
cherryview:
- Use temporary variable for struct device
- Do not allow the same interrupt line to be used by 2 pins
- Don't use selection 0 to mark an interrupt line as unused
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Merge tag 'intel-pinctrl-v5.17-3' of gitolite.kernel.org:pub/scm/linux/kernel/git/pinctrl/intel into devel
intel-pinctrl for v5.17-3
* Intel Baytrail and Cherryview IRQ related fixes
The following is an automated git shortlog grouped by driver:
baytrail:
- Set IRQCHIP_SET_TYPE_MASKED flag on the irqchip
cherryview:
- Use temporary variable for struct device
- Do not allow the same interrupt line to be used by 2 pins
- Don't use selection 0 to mark an interrupt line as unused
GPIO library does copy the of_node from the parent device of
the GPIO chip, there is no need to repeat this in the individual
drivers. Remove these assignment all at once.
For the details one may look into the of_gpio_dev_init() implementation.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211214125855.33207-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Set the direction directly without calling pinctrl_gpio_direction().
This avoids the mutex_lock() calls in that function, which would
invalid the can_sleep = false.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Link: https://lore.kernel.org/r/20211206131648.1521868-4-hverkuil-cisco@xs4all.nl
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Set the direction directly without calling pinctrl_gpio_direction().
This avoids the mutex_lock() calls in that function, which would
invalid the can_sleep = false.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211206131648.1521868-3-hverkuil-cisco@xs4all.nl
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The uninitialized variable would be caught by the BUG_ON()
logic below, but the kernel test robot cannot see that.
Silence the warning by initializing the variable.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20211209134513.306212-1-linus.walleij@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Sort Kconfig and Makefile entries alphabetically for better maintenance
in the future.
While at it fix some style issues, such as:
- "Say Y"/"Say yes"/"Say Yes" --> "Say Y"
- "pullup/pulldown" --> "pull-up and pull-down"
- wrong indentation
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211209113456.33977-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
About Intel Thunder Bay:
-----------------------
Intel Thunder Bay is a computer vision AI accelerator SoC based on ARM CPU.
Pinctrl IP:
----------
The SoC has a customised pinmux controller IP which controls pin
multiplexing and configuration.
Thunder Bay pinctrl IP is not based on and have nothing in common with the
existing pinctrl drivers. The registers used are incompatible with the
existing drivers, so it requires a new driver.
Add pinctrl driver to enable pin control support in the Intel Thunder Bay
SoC.
Co-developed-by: Kiran Kumar S <kiran.kumar1.s@intel.com>
Signed-off-by: Kiran Kumar S <kiran.kumar1.s@intel.com>
Signed-off-by: Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>
Link: https://lore.kernel.org/r/20211201072626.19599-3-lakshmi.sowjanya.d@intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds pincontrol driver for tlmm block found in SM8450 SoC
This patch is based on initial code downstream by
Elliot Berman <eberman@codeaurora.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211201072434.3968768-3-vkoul@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- Add generic support for output impedance,
- Add drive strength and output impedance support for the RZ/G2L SoC,
- Miscellaneous fixes and improvements.
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Merge tag 'renesas-pinctrl-for-v5.17-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: renesas: Updates for v5.17
- Add generic support for output impedance,
- Add drive strength and output impedance support for the RZ/G2L SoC,
- Miscellaneous fixes and improvements.
Resources need to be shared between pinmux and plgpio.
Introduce regmap phandle in order to retrieve the regmap
from the phandle if the property is present.
This allows to retrieve an external regmap (ie the one
used by pinmux if the phandle references the pinmux node)
from plgpio.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20211202095255.165797-4-herve.codina@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Resources need to be shared between pinmux and plgpio.
Use regmap (syscon) to access resources to allow an
easy way to share resources.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20211202095255.165797-3-herve.codina@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Resources need to be shared between pinmux and plgpio.
Use regmap (syscon) to access resources to allow an
easy way to share resources.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20211202095255.165797-2-herve.codina@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Zero-length and one-element arrays are deprecated, see
Documentation/process/deprecated.rst
Flexible-array members should be used instead.
Generated by: scripts/coccinelle/misc/flexible_array.cocci
CC: Joey Gouly <joey.gouly@arm.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@inria.fr>
Link: https://lore.kernel.org/r/alpine.DEB.2.22.394.2111271859250.2864@hadrien
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
All the other mtk_hw_get_value() calls have a check for "if (err)" so
we can add one here as well. This silences a Smatch warning:
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c:819 mtk_pinconf_bias_get_rsel()
error: uninitialized symbol 'pd'.
Fixes: fb34a9ae383a ("pinctrl: mediatek: support rsel feature")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211127140836.GB24002@kili
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The "try_all_type" variable is not set if (hw->soc->pull_type) is false
leading to the following Smatch warning:
drivers/pinctrl/mediatek/pinctrl-paris.c:599 mtk_pctrl_show_one_pin()
error: uninitialized symbol 'try_all_type'.
Fixes: fb34a9ae383a ("pinctrl: mediatek: support rsel feature")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211127140750.GA24002@kili
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
GPIO nodes are not themselves busses, so passing rockchip_bank_match
here is wrong. Passing NULL instead uses the standard bus match table
which is more appropriate.
devm_of_platform_populate() shows that this is the normal way to call
of_platform_populate() from a device driver, so in order to match that
more closely also add the pinctrl device as the parent for the newly
created GPIO controllers.
Specifically, using the wrong match here can break dynamic GPIO hogs as
marking the GPIO bank as a bus means that of_platform_notify() will set
OF_POPULATED on new child nodes and if this happens before
of_gpio_notify() is called then the new hog will be skipped as
OF_POPULATED is already set.
Fixes: 9ce9a02039de ("pinctrl/rockchip: drop the gpio related codes")
Signed-off-by: John Keeping <john@metanate.com>
Link: https://lore.kernel.org/r/20211126151352.1509583-1-john@metanate.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
If of_property_count_u32_elems returned 0, return -EINVAL to indicate
a failure. Previously this would return 0.
Fixes: a0f160ffcb83 ("pinctrl: add pinctrl/GPIO driver for Apple SoCs")
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211121165642.27883-12-joey.gouly@arm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The gpio core code sets of_node, so no need to do it here.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211121165642.27883-10-joey.gouly@arm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Having this missing, but everything else valid shouldn't result
in a failure.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211121165642.27883-9-joey.gouly@arm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Try to make this more readable by not using a long line with
a ternary operator.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211121165642.27883-7-joey.gouly@arm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Explicitly return 0 if the regmap_read fails.
Also change a uint32_t to a u32.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211121165642.27883-6-joey.gouly@arm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This is needed for the BIT(n) macro.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211121165642.27883-5-joey.gouly@arm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This is the preferred comment style.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211121165642.27883-4-joey.gouly@arm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add a missing comma at the end of the regmap initialisation.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211121165642.27883-3-joey.gouly@arm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reflow some of the code now that the extra '_gpio' was removed.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211121165642.27883-2-joey.gouly@arm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Merge tag 'v5.16-rc2' into devel
Linux 5.16-rc2 is needed because nonurgent fixes headed
for next are strongly textually dependent on a fix that
was applied for rc2.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
It is impossible to use the same interrupt line for 2 pins, this will
result in the interrupts only being delivered to the IRQ handler for
the pin for which chv_gpio_irq_type() was called last.
The pinctrl-cherryview.c code relies on the BIOS to correctly setup the
interrupt line, but there is a BIOS bug on at least the Medion Akoya E1239T
and the GPD win models where both INT33FF:02 pin 8, used by the powerbutton
and INT33FF:02 pin 21 used as IRQ input for the accelerometer are mapped to
interrupt line 0.
This causes 2 problems:
1. The accelerometer IRQ does not work, since the power button is probed
later taking over the intr_lines[0] slot.
2. Since the accelerometer IRQ is not marked as wakeup, interrupt line 0
gets masked on suspend, causing the power button to not work to wake
the system from suspend.
Likewise on the Lenovo Yogabook, which has a touchscreen as keyboard
and the keyboard half of the tablet also has a Wacom digitizer, the BIOS
by default assigns the same interrupt line to the GPIOs used
for their interrupts.
Fix these problems by adding a check for this and assigning a new
interrupt line to the 2nd pin for which chv_gpio_irq_type() gets called.
With this fix in place the following 2 messages show up in dmesg on
the Medion Akoya E1239T and the GPD win:
cherryview-pinctrl INT33FF:02: interrupt line 0 is used by both pin 21 and pin 8
cherryview-pinctrl INT33FF:02: changing the interrupt line for pin 8 to 15
And the following gets logged on the Lenovo Yogabook:
cherryview-pinctrl INT33FF:01: interrupt-line 0 is used by both pin 49 and pin 56
cherryview-pinctrl INT33FF:01: changing the interrupt line for pin 56 to 7
Note commit 9747070c11d6 ("Input: axp20x-pek - always register interrupt
handlers") was added as a work around for the power button not being able
to wakeup the system. This relies on using the PMIC's connection to the
power button but that only works on systems with the AXP288 PMIC.
Once this fix has been merged that workaround can be removed.
Cc: Yauhen Kharuzhy <jekhor@gmail.com>
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>
The selection 0 is a perfectly valid, so stop using it to have
the special meaning of interrupt line not used in the intr_lines.
Instead introduce a special CHV_INVALID_HWIRQ value, derived
from INVALID_HWIRQ. which is never a valid selection and use
that to indicate unused interrupt lines.
Cc: Yauhen Kharuzhy <jekhor@gmail.com>
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>
The byt_irq_type function ends with the IRQ masked, this means that calls
to irq_set_irq_type() while the IRQ is enabled end up masking it, which
is wrong. Add the IRQCHIP_SET_TYPE_MASKED flag to fix this.
This will make the IRQ core call mask() + unmask() on the IRQ around
a set_type() call when the IRQ is enabled at the type of the call.
Note in practice irq_set_irq_type() getting called while the IRQ is enabled
almost never happens. I hit this with a buggy DSDT where a wrongly active
(_STA returns 0xf) I2C ACPI devices point to an IRQ already in use by an
_AEI handler, leading to the irq_set_irq_type() call in
acpi_dev_gpio_irq_get_by() getting called while the IRQ is enabled.
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>
In order to allow external control via SPI, memory-mapped areas must be
changed to use the generic regmap interface. This is step 1, and is
followed by an implementation that allows a custom regmap.
Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Link: https://lore.kernel.org/r/20211119195928.2498441-4-colin.foster@in-advantage.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
struct gpio_chip recommends passing -1 as base to gpiolib. Doing so avoids
conflicts when the chip is external and gpiochip0 already exists.
Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Tested-by: Clément Léger <clement.leger@bootlin.com>
Link: https://lore.kernel.org/r/20211119195928.2498441-3-colin.foster@in-advantage.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
sc7280 supports the egpio feature, GPIOs ranging from 144 to 174
(31 GPIOs) support it, we define gpio_func to 9, which
is an unused function for all these pins on sc7280.
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1637041084-3299-2-git-send-email-rnayak@codeaurora.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
egpio is a scheme which allows special power Island Domain IOs
(LPASS,SSC) to be reused as regular chip GPIOs by muxing regular
TLMM functions with Island Domain functions.
With this scheme, an IO can be controlled both by the cpu running
linux and the Island processor. This provides great flexibility to
re-purpose the Island IOs for regular TLMM usecases.
2 new bits are added to ctl_reg, egpio_present is a read only bit
which shows if egpio feature is available or not on a given gpio.
egpio_enable is the read/write bit and only effective if egpio_present
is 1. Once its set, the Island IO is controlled from Chip TLMM.
egpio_enable when set to 0 means the GPIO is used as Island Domain IO.
To support this we add a new function 'egpio' which can be used to
set the egpio_enable to 0, for any other TLMM controlled functions
we set the egpio_enable to 1.
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Link: https://lore.kernel.org/r/1637041084-3299-1-git-send-email-rnayak@codeaurora.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch extends pinctrl-ocelot driver to support also the
lan966x. Register layout is same as ocelot. It has 78 GPIOs.
Requires 3 registers ALT0, ALT1, ALT2 to configure ALT mode.
Signed-off-by: Kavyasree Kotagiri <kavyasree.kotagiri@microchip.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211118112548.14582-3-kavyasree.kotagiri@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There is no need to acquire the spinlock when reading from a pin
controller register:
1. Reading a single MMIO register is an atomic operation,
2. While sh_pfc_phys_to_virt() inside sh_pfc_read() has to traverse
all mapped windows to find the appropriate virtual address, this
does not need any locking, as the window mappings are never
changed.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/2008ca99f0079fd5d4e640b7ef78710c98cc9f77.1637143108.git.geert+renesas@glider.be
Since we have devm_kasprintf_strarray() helper, which is used in
the rest of pin control drivers, it makes sense to switch this
driver to it. The pin names are not part of any ABI and hence
there will be no regression based on that. Otherwise all generated
pin names will follow the same schema in the pin control subsystem.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Since we have a generic helper, switch the module to use it.
As a side effect, add check for the memory allocation failures and
cleanup it either in error case or when driver is unloading.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
It's fine to call dev_err_probe() in ->probe() when error code is known.
Convert the driver to use dev_err_probe().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap_resource()
separately.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Kernel doc validator is not happy:
.../pinctrl-st.c:59: warning: This comment starts with '/**', but isn't a kernel-doc comment.
.../pinctrl-st.c:73: warning: This comment starts with '/**', but isn't a kernel-doc comment.
Drop them as they are indeed not a kernel doc comments.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
