On mt8195, the pinctrl node has pinctrl groups to group pin
configurations by users' need. In each pinctrl group, it has
subnode(s) to list pins needed and pin configurations. By supporting
multiple subnodes, we can configure different pin characteristics
(driving/pull-up/pull-down/etc.) in a pinctrl group.
Update pinctrl-mt8195.yaml to add subnode in pinctrl groups and an
example to illustrate the usage.
Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com>
Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211220121825.6446-4-tinghan.shen@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
1. Add support for Exynos7885.
2. Drop usage of platform_get_resource().
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Merge tag 'samsung-pinctrl-5.17' of https://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/samsung into devel
Samsung pinctrl drivers changes for v5.17
1. Add support for Exynos7885.
2. Drop usage of platform_get_resource().
This simplifies ns driver and gets rid of ~70 lines of code.
"const" had to be dropped from "struct ns_pinctrl_group" @pins to match
"struct group_desc" @pins and pinctrl_generic_add_group(). Otherwise it
would cause:
drivers/pinctrl/bcm/pinctrl-ns.c: In function 'ns_pinctrl_probe':
drivers/pinctrl/bcm/pinctrl-ns.c:277:13: warning: passing argument 3 of 'pinctrl_generic_add_group' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
277 | group->pins, group->num_pins, NULL);
| ~~~~~^~~~~~
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20211222064344.14624-1-zajec5@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fix code to check correct variable value.
Reported-by: Abel Vesa <abel.vesa@nxp.com>
Fixes: 02f1171349 ("pinctrl: imx: prepare for making "group_names" in "function_desc" const")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Link: https://lore.kernel.org/r/20211222212807.27122-1-zajec5@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
platform_get_resource(pdev, IORESOURCE_IRQ, ..) relies on static
allocation of IRQ resources in DT core code, this causes an issue
when using hierarchical interrupt domains using "interrupts" property
in the node as this bypasses the hierarchical setup and messes up the
irq chaining.
In preparation for removal of static setup of IRQ resource from DT core
code use platform_get_irq_optional().
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20211224145748.18754-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
When creating MFD platform devices the firmware node is left unset.
This, in particular, prevents GPIO library to use it for different
purposes. Propagate firmware node from the parent device and let
GPIO library do the right thing.
While at it, slightly modify the headers to reflect the usage of APIs.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20211216151227.58687-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Generic code doesn't modify those strings and .get_function_groups
callback has that extra "const" as well. This allows more flexibility in
GENERIC_PINMUX_FUNCTIONS users.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20211216162206.8027-4-zajec5@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Make the outer loop iterate over functions as that's the real subject.
This simplifies code (and reduces amount of lines of code) as allocating
memory for names doesn't require extra checks anymore.
While at it use local "group_names" variable. The plan for
"struct function_desc" is to make its "group_names" /double/ const. That
will allow drivers to use it with static const data.
This keembay "group_names" change is required to avoid:
drivers/pinctrl/pinctrl-keembay.c: In function 'keembay_add_functions':
drivers/pinctrl/pinctrl-keembay.c:1594:8: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
1594 | grp = func->group_names;
| ^
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20211216162206.8027-3-zajec5@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This should make code a bit easier to follow. While at it use some "for"
loops to simplify array iteration loops.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20211216162206.8027-2-zajec5@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The plan for "struct function_desc" is to make its "group_names"
/double/ const. That will allow drivers to use it with static const
data.
This imx change is required to avoid:
drivers/pinctrl/freescale/pinctrl-imx.c: In function 'imx_pinctrl_parse_functions':
drivers/pinctrl/freescale/pinctrl-imx.c:672:24: error: assignment of read-only location '*(func->group_names + (sizetype)(i * 4))'
672 | func->group_names[i] = child->name;
| ^
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20211216162206.8027-1-zajec5@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- Align comments in the R-Car V3U pin control driver.
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Merge tag 'renesas-pinctrl-for-v5.17-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: renesas: Updates for v5.17 (take two)
- Align comments in the R-Car V3U pin control driver.
Since [1], added in 5.7, the absence of a gpio-ranges property has
prevented GPIOs from being restored to inputs when released.
Add those properties for BCM283x and BCM2711 devices.
[1] commit 2ab73c6d83 ("gpio: Support GPIO controllers without
pin-ranges")
Fixes: 2ab73c6d83 ("gpio: Support GPIO controllers without pin-ranges")
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20211206092237.4105895-3-phil@raspberrypi.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When PINCTRL_ASPEED_G* is selected,
and MFD_SYSCON is not selected,
Kbuild gives the following warnings:
WARNING: unmet direct dependencies detected for PINCTRL_ASPEED
Depends on [n]: PINCTRL [=y] && (ARCH_ASPEED [=n] || COMPILE_TEST [=y]) && OF [=y] && MFD_SYSCON [=n]
Selected by [y]:
- PINCTRL_ASPEED_G4 [=y] && PINCTRL [=y] && (MACH_ASPEED_G4 [=n] || COMPILE_TEST [=y]) && OF [=y]
WARNING: unmet direct dependencies detected for PINCTRL_ASPEED
Depends on [n]: PINCTRL [=y] && (ARCH_ASPEED [=n] || COMPILE_TEST [=y]) && OF [=y] && MFD_S>
Selected by [y]:
- PINCTRL_ASPEED_G5 [=y] && PINCTRL [=y] && (MACH_ASPEED_G5 [=n] || COMPILE_TEST [=y]) && O>
WARNING: unmet direct dependencies detected for PINCTRL_ASPEED
Depends on [n]: PINCTRL [=y] && (ARCH_ASPEED [=n] || COMPILE_TEST [=y]) && OF [=y] && MFD_S>
Selected by [y]:
- PINCTRL_ASPEED_G6 [=y] && PINCTRL [=y] && (MACH_ASPEED_G6 [=n] || COMPILE_TEST [=y]) && O>
This is because MACH_ASPEED_G* depend on (ARCH_ASPEED || COMPILE_TEST).
ARCH_ASPEED enables the MFD_SYSCON dependency, but COMPILE_TEST doesn't.
These unmet dependency bugs were detected by Kismet,
a static analysis tool for Kconfig. Please advise
if this is not the appropriate solution.
Signed-off-by: Julian Braha <julianbraha@gmail.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20211215214022.146391-1-julianbraha@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* 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>
Add Device Tree bindings documentation and an entry in MAINTAINERS file
for Intel Thunder Bay SoC's pin controller.
Signed-off-by: Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>
Link: https://lore.kernel.org/r/20211201072626.19599-2-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.
Also fix some examples to avoid warnings like:
brcm,ns-pinmux.example.dt.yaml: pin-controller@1800c1c0: $nodename:0: 'pin-controller@1800c1c0' does not match '^pinctrl|pinmux@[0-9a-f]+$'
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211202063216.24439-1-zajec5@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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: fb34a9ae38 ("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: fb34a9ae38 ("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: 9ce9a02039 ("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>
This reverts commit 3fe59cc4ff.
The bindings were not properly reviewed and were also
causing errors in the automatic checkers once applied.
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: a0f160ffcb ("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>
