Commit Graph

622 Commits

Author SHA1 Message Date
Bartosz Golaszewski
d9d87d90cc treewide: rename GPIO set callbacks back to their original names
The conversion of all GPIO drivers to using the .set_rv() and
.set_multiple_rv() callbacks from struct gpio_chip (which - unlike their
predecessors - return an integer and allow the controller drivers to
indicate failures to users) is now complete and the legacy ones have
been removed. Rename the new callbacks back to their original names in
one sweeping change.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-08-07 10:07:06 +02:00
Andy Shevchenko
3b4408038d pinctrl: intel: fix build warnings about export.h
After commit a934a57a42 ("scripts/misc-check: check missing #include
<linux/export.h> when W=1") and 7d95680d64 ("scripts/misc-check:
check unnecessary #include <linux/export.h> when W=1"), we get some build
warnings with W=1:

pinctrl-intel.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing

So fix these build warnings for the driver code.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-06-12 15:19:08 +03:00
Bartosz Golaszewski
20e62271fb pinctrl: lynxpoint: use new GPIO line value setter callbacks
struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-06-11 11:27:30 +03:00
Bartosz Golaszewski
241d79f025 pinctrl: intel: use new GPIO line value setter callbacks
struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-06-11 11:27:30 +03:00
Bartosz Golaszewski
83ab731cb2 pinctrl: cherryview: use new GPIO line value setter callbacks
struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-06-11 11:27:30 +03:00
Bartosz Golaszewski
4863d750fd pinctrl: baytrail: use new GPIO line value setter callbacks
struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-06-11 11:27:30 +03:00
Raag Jadav
0ee2261d08 pinctrl: intel: drop repeated config dependency
We already have ACPI dependency for Intel pinctrl menu. No need to
repeat it.

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-03-03 16:20:51 +02:00
Andy Shevchenko
aa0554d375 ib-devres-iio-input-pinctrl for v6.15
* Split devres APIs to a separate header (linux/device/devres.h)
 * Move IOMEM_ERR_PTR() to err.h to avoid unneeded loops
 * Introduce devm_kmemdup_array()
 * Use devm_kmemdup_array() in input, IIO, and pinctrl subsystems
 
 The following is an automated git shortlog grouped by driver:
 
 baytrail:
  -  copy communities using devm_kmemdup_array()
 
 cherryview:
  -  use devm_kmemdup_array()
 
 devres:
  -  Introduce devm_kmemdup_array()
 
 driver core:
  -  Split devres APIs to device/devres.h
 
 err.h:
  -  move IOMEM_ERR_PTR() to err.h
 
 iio:
  -  adc: xilinx-xadc-core: use devm_kmemdup_array()
  -  imu: st_lsm9ds0: Replace device.h with what is needed
 
 input:
  -  ipaq-micro-keys: use devm_kmemdup_array()
  -  sparse-keymap: use devm_kmemdup_array()
 
 intel:
  -  copy communities using devm_kmemdup_array()
 
 Merge patch series "Split devres APIs to device/devres.h and introduce devm_kmemdup_array()":
  - Merge patch series "Split devres APIs to device/devres.h and introduce devm_kmemdup_array()"
 
 pxa2xx:
  -  use devm_kmemdup_array()
 
 tangier:
  -  use devm_kmemdup_array()
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Merge tag 'ib-devres-iio-input-pinctrl-v6.15' into intel/pinctrl

There are a few Intel pin control drivers that are affected
by the devm_kmemdup_array() conversion, merge the ib-devres-iio-input-pinctrl
for making development going smoothly.

* Split devres APIs to a separate header (linux/device/devres.h)
* Move IOMEM_ERR_PTR() to err.h to avoid unneeded loops
* Introduce devm_kmemdup_array()
* Use devm_kmemdup_array() in input, IIO, and pinctrl subsystems

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-02-25 13:16:46 +02:00
Raag Jadav
91bfcc7a2f pinctrl: tangier: use devm_kmemdup_array()
Convert to use devm_kmemdup_array() and while at it, use source size
instead of destination.

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-02-24 12:08:52 +02:00
Raag Jadav
d795fb90d6 pinctrl: cherryview: use devm_kmemdup_array()
Convert to use devm_kmemdup_array() and while at it, use source size
instead of destination.

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-02-24 12:08:52 +02:00
Raag Jadav
f192c8447f pinctrl: baytrail: copy communities using devm_kmemdup_array()
Copy communities using devm_kmemdup_array() instead of doing it manually.

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-02-24 12:08:52 +02:00
Raag Jadav
753764aa8e pinctrl: intel: copy communities using devm_kmemdup_array()
Copy communities using devm_kmemdup_array() instead of doing it manually.

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-02-24 12:08:52 +02:00
Andy Shevchenko
0eee258cdf pinctrl: intel: Fix wrong bypass assignment in intel_pinctrl_probe_pwm()
When instantiating PWM, the bypass should be set to false. The field
is used for the selected Intel SoCs that do not have PWM feature enabled
in their pin control IPs.

Fixes: eb78d3604d ("pinctrl: intel: Enumerate PWM device when community has a capability")
Reported-by: Alexis GUILLEMET <alexis.guillemet@dunasys.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Alexis GUILLEMET <alexis.guillemet@dunasys.com>
2025-02-11 16:27:50 +02:00
Uwe Kleine-König
c42a407bee pinctrl: intel: Import PWM_LPSS namespace for devm_pwm_lpss_probe()
The Intel pinctrl driver can provide a PWM device and for that needs to
call the function devm_pwm_lpss_probe(). That function is provided by
the pwm-lpss driver which intends to export it in the "PWM_LPSS"
namespace. To prepare fixing the pwm-lpss driver to indeed use the
"PWM_LPSS" namespace, import that namespace when used.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-02-03 17:22:36 +02:00
Andy Shevchenko
5feac4d72d pinctrl: lynxpoint: Use dedicated helpers for chained IRQ handlers
Instead of relying on the fact that the parent IRQ chip supports
fasteoi mode and calling the respective callback at the end of
the interrupt handler, surround it with enter and exit helpers
for chained IRQ handlers which will consider all possible cases.

This in particular unifies how GPIO drivers handle IRQ.

Reviewed-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>
2025-02-03 11:59:14 +02:00
Andy Shevchenko
8e54033b42 pinctrl: baytrail: Use dedicated helpers for chained IRQ handlers
Instead of relying on the fact that the parent IRQ chip supports
fasteoi mode and calling the respective callback at the end of
the interrupt handler, surround it with enter and exit helpers
for chained IRQ handlers which will consider all possible cases.

This in particular unifies how GPIO drivers handle IRQ.

Reviewed-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>
2025-02-03 11:59:14 +02:00
Peter Zijlstra
cdd30ebb1b module: Convert symbol namespace to string literal
Clean up the existing export namespace code along the same lines of
commit 33def8498f ("treewide: Convert macro and uses of __section(foo)
to __section("foo")") and for the same reason, it is not desired for the
namespace argument to be a macro expansion itself.

Scripted using

  git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file;
  do
    awk -i inplace '
      /^#define EXPORT_SYMBOL_NS/ {
        gsub(/__stringify\(ns\)/, "ns");
        print;
        next;
      }
      /^#define MODULE_IMPORT_NS/ {
        gsub(/__stringify\(ns\)/, "ns");
        print;
        next;
      }
      /MODULE_IMPORT_NS/ {
        $0 = gensub(/MODULE_IMPORT_NS\(([^)]*)\)/, "MODULE_IMPORT_NS(\"\\1\")", "g");
      }
      /EXPORT_SYMBOL_NS/ {
        if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+),/) {
  	if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/ &&
  	    $0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(\)/ &&
  	    $0 !~ /^my/) {
  	  getline line;
  	  gsub(/[[:space:]]*\\$/, "");
  	  gsub(/[[:space:]]/, "", line);
  	  $0 = $0 " " line;
  	}

  	$0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/,
  		    "\\1(\\2, \"\\3\")", "g");
        }
      }
      { print }' $file;
  done

Requested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc
Acked-by: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-02 11:34:44 -08:00
Linus Torvalds
2d32fba02e This is the bulk of the pin control changes for v6.13:
No core changes this time.
 
 New drivers:
 
 - Xlinix Versal pin control driver.
 
 - Ocelot LAN969x pin control driver.
 
 - T-Head TH1520 RISC-V SoC pin control driver.
 
 - Qualcomm SM8750, IPQ5424, QCS8300, SAR2130P and QCS615 SoC
   pin control drivers.
 
 - Qualcomm SM8750 LPASS (low power audio subsystem)
   pin control driver.
 
 - Qualcomm PM8937 mixsig IC pin control support, GPIO and
   MPP (multi-purpose-pin).
 
 - Samsung Exynos8895 and Exynos9810 SoC pin control driver.
 
 - SpacemiT K1 SoC pin control driver.
 
 - Airhoa EN7581 IC pin control driver.
 
 Improvements:
 
 - The Renesas subdriver now supports schmitt-trigger and
   open drain pin configurations if the hardware supports it.
 
 - Support GPIOF and GPIOG banks in the Aspeed G6 SoC.
 
 - Support the DSW community in the Intel Elkhartlake SoC.
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Merge tag 'pinctrl-v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "No core changes this time.

  New drivers:

   - Xlinix Versal pin control driver

   - Ocelot LAN969x pin control driver

   - T-Head TH1520 RISC-V SoC pin control driver

   - Qualcomm SM8750, IPQ5424, QCS8300, SAR2130P and QCS615 SoC pin
     control drivers

   - Qualcomm SM8750 LPASS (low power audio subsystem) pin control
     driver

   - Qualcomm PM8937 mixsig IC pin control support, GPIO and MPP
     (multi-purpose-pin)

   - Samsung Exynos8895 and Exynos9810 SoC pin control driver

   - SpacemiT K1 SoC pin control driver

   - Airhoa EN7581 IC pin control driver

  Improvements:

   - The Renesas subdriver now supports schmitt-trigger and open drain
     pin configurations if the hardware supports it

   - Support GPIOF and GPIOG banks in the Aspeed G6 SoC

   - Support the DSW community in the Intel Elkhartlake SoC"

* tag 'pinctrl-v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (105 commits)
  pinctrl: airoha: Use unsigned long for bit search
  pinctrl: k210: Undef K210_PC_DEFAULT
  pinctrl: qcom: spmi: fix debugfs drive strength
  pinctrl: qcom: Add sm8750 pinctrl driver
  dt-bindings: pinctrl: qcom: Add sm8750 pinctrl
  pinctrl: cy8c95x0: remove unneeded goto labels
  pinctrl: cy8c95x0: embed iterator to the for-loop
  pinctrl: cy8c95x0: Use temporary variable for struct device
  pinctrl: cy8c95x0: use flexible sleeping in reset function
  pinctrl: cy8c95x0: switch to using devm_regulator_get_enable()
  pinctrl: cy8c95x0: Use 2-argument strscpy()
  dt-bindings: pinctrl: sx150xq: allow gpio line naming
  pinctrl: single: add marvell,pxa1908-padconf compatible
  dt-bindings: pinctrl: pinctrl-single: add marvell,pxa1908-padconf compatible
  dt-bindings: pinctrl: correct typo of description for cv1800
  pinctrl: qcom: spmi-mpp: Add PM8937 compatible
  dt-bindings: pinctrl: qcom,pmic-mpp: Document PM8937 compatible
  pinctrl: qcom-pmic-gpio: add support for PM8937
  dt-bindings: pinctrl: qcom,pmic-gpio: add PM8937
  pinctrl: Use of_property_present() for non-boolean properties
  ...
2024-11-25 17:24:51 -08:00
Linus Walleij
546ee7b890 intel-pinctrl for v6.13-2
This includes following Intel pinctrl changes for v6.13 merge window:
 
   - Expose DSW community on Elkhart Lake.
   - Elaborate in the code comment the pull bias settings.
 
 Both have been in linux-next with no reported issues.
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Merge tag 'intel-pinctrl-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into devel

intel-pinctrl for v6.13-2

This includes following Intel pinctrl changes for v6.13 merge window:

  - Expose DSW community on Elkhart Lake.
  - Elaborate in the code comment the pull bias settings.

Both have been in linux-next with no reported issues.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-11-07 14:56:52 +01:00
Andy Shevchenko
c6235c426d pinctrl: elkhartlake: Add support for DSW community
Hardware has a DSW (Deep Sleep Well) community that might be exposed
by some BIOSes. Add support for it in the driver.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2024-11-05 07:48:58 +02:00
Andy Shevchenko
4cbf2b660f pinctrl: intel: Add a human readable decoder for pull bias values
Add a human readable decoder for pull bias values in the comment.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2024-11-05 07:48:45 +02:00
Uwe Kleine-König
1a075b1dcc pinctrl: Switch back to struct platform_driver::remove()
After commit 0edb555a65 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.

Convert all platform drivers below drivers/pinctrl to use .remove(),
with the eventual goal to drop struct platform_driver::remove_new(). As
.remove() and .remove_new() have the same prototypes, conversion is done
by just changing the structure member name in the driver initializer.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/20241007205803.444994-8-u.kleine-koenig@baylibre.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-10-11 21:45:47 +02:00
Andy Shevchenko
3775625709 pinctrl: intel: platform: Add Panther Lake to the list of supported
Intel Panther Lake is supported by the generic platform driver,
so add it to the list of supported in Kconfig.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-10-03 13:14:31 +03:00
Javier Carrasco
d594de8956 pinctrl: intel: platform: use semicolon instead of comma in ncommunities assignment
Substitute the comma with a semicolon in the `ncommunities` assignment
for better readability and consistency with common C coding style.

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-09-30 14:35:23 +03:00
Javier Carrasco
16a6d2e685 pinctrl: intel: platform: fix error path in device_for_each_child_node()
The device_for_each_child_node() loop requires calls to
fwnode_handle_put() upon early returns to decrement the refcount of
the child node and avoid leaking memory if that error path is triggered.

There is one early returns within that loop in
intel_platform_pinctrl_prepare_community(), but fwnode_handle_put() is
missing.

Instead of adding the missing call, the scoped version of the loop can
be used to simplify the code and avoid mistakes in the future if new
early returns are added, as the child node is only used for parsing, and
it is never assigned.

Cc: stable@vger.kernel.org
Fixes: c5860e4a27 ("pinctrl: intel: Add a generic Intel pin control platform driver")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-09-30 14:35:23 +03:00
Linus Walleij
264c13114b intel-pinctrl for v6.12-1
* Enable High Impedance pin configuration support for Intel pin control
 * Miscellaneous small improvements here and there
 
 The following is an automated git shortlog grouped by driver:
 
 baytrail:
  -  Drop duplicate return statement
 
 intel:
  -  Constify struct intel_pinctrl parameter
  -  Inline intel_gpio_community_irq_handler()
  -  Introduce for_each_intel_gpio_group() helper et al.
  -  Constify intel_get_community() returned object
  -  Implement high impedance support
  -  Add __intel_gpio_get_direction() helper
  -  Refactor __intel_gpio_set_direction() to be more useful
  -  Move debounce validation out of the lock
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Merge tag 'intel-pinctrl-v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into devel

intel-pinctrl for v6.12-1

* Enable High Impedance pin configuration support for Intel pin control
* Miscellaneous small improvements here and there

The following is an automated git shortlog grouped by driver:

baytrail:
 -  Drop duplicate return statement

intel:
 -  Constify struct intel_pinctrl parameter
 -  Inline intel_gpio_community_irq_handler()
 -  Introduce for_each_intel_gpio_group() helper et al.
 -  Constify intel_get_community() returned object
 -  Implement high impedance support
 -  Add __intel_gpio_get_direction() helper
 -  Refactor __intel_gpio_set_direction() to be more useful
 -  Move debounce validation out of the lock
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-09-11 10:27:30 +02:00
Andy Shevchenko
1652e95b17 pinctrl: intel: Constify struct intel_pinctrl parameter
There are a few functions that do not and should not change
the state of the pin control object. Constify the respective
parameter.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2024-09-05 18:09:28 +03:00
Andy Shevchenko
bda2f1c2d8 pinctrl: baytrail: Drop duplicate return statement
No need to repeat 'return ret;' inside and outside conditional.
Just use one outside conditional for both cases.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-09-04 13:31:05 +03:00
Andy Shevchenko
52c62a3da8 pinctrl: intel: Inline intel_gpio_community_irq_handler()
Since we have for_each_intel_pad_group() helper, there is
no advantage of having intel_gpio_community_irq_handler().
Inline it into intel_gpio_irq().

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-09-03 17:08:42 +03:00
Andy Shevchenko
74367ad80c pinctrl: intel: Introduce for_each_intel_gpio_group() helper et al.
Introduce a helper macro for_each_intel_gpio_group() et al.
With those in place, update the users.

It reduces the C code base as well as shrinks the binary:

  add/remove: 0/0 grow/shrink: 4/21 up/down: 39/-621 (-582)
  Total: Before=15942, After=15360, chg -3.65%

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-08-30 21:47:36 +03:00
Andy Shevchenko
e075cbfeb4 pinctrl: intel: Constify intel_get_community() returned object
There is nothing prevents us from constifying intel_get_community()
returned object. Do it to make code more robust.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-08-30 21:44:38 +03:00
Andy Shevchenko
13791bb6bf pinctrl: intel: Implement high impedance support
Implement high impedance support for Intel pin control hardware.
It allows to set high impedance and check it.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-08-30 21:44:38 +03:00
Andy Shevchenko
91946ccbe7 pinctrl: intel: Add __intel_gpio_get_direction() helper
Add __intel_gpio_get_direction() helper which provides all possible
physical states of the pad.

With that done, update current users and make the respective checks
consistent.

While at it, make the style of anonymous enum kernel documentation
consistent.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-08-30 21:44:37 +03:00
Andy Shevchenko
8c4a51f8d3 pinctrl: intel: Refactor __intel_gpio_set_direction() to be more useful
Refactor __intel_gpio_set_direction() to be more useful, i.e.
1) use one parameter per each direction to support all combinatios;
2) move IO to the only user that needs it.

With that done, update current users and deduplicate existing code.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-08-30 21:44:37 +03:00
Andy Shevchenko
e5544d99d0 pinctrl: intel: Move debounce validation out of the lock
There is no need to validate debounce value under the lock.
Move it outside.

It also results in a smaller binary:

  add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-11 (-11)
  Total: Before=15374, After=15363, chg -0.07%

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-08-30 21:44:37 +03:00
Mika Westerberg
a366e46da1 pinctrl: meteorlake: Add Arrow Lake-H/U ACPI ID
Intel Arrow Lake-H/U has the same GPIO hardware than Meteor Lake-P but
the ACPI ID is different. Add this new ACPI ID to the list of supported
devices.

Cc: stable@vger.kernel.org
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2024-07-31 13:38:13 +03:00
Hans de Goede
5d10a157eb pinctrl: baytrail: Add pinconf group for uart3
GPIO_S0_SC57 / GPIO_S0_SC61 can be muxed to PCU_UART_TXD / PCU_UART_RXD,
add a pinconf group for this.

On Bay Trail board schematics using these pins as UART these are
called UART3_TXD / UART3_RXD, name the pinconf group "uart3_grp"
to be consistent with the schematics.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-04-08 17:54:48 +03:00
Hans de Goede
fed6d9a8e6 pinctrl: baytrail: Fix selecting gpio pinctrl state
For all the "score" pin-groups all the intel_pingroup-s to select
the non GPIO function are re-used for byt_score_gpio_groups[].

But this is incorrect since a pin-group includes the mode setting,
which for the non GPIO functions generally is 1, where as to select
the GPIO function mode must be set to 0.

So the GPIO function needs separate intel_pingroup-s with their own mode
value of 0.

Add a new PIN_GROUP_GPIO macro which adds a foo_gpio entry to each
pin-group defined this way and update byt_score_gpio_groups[] to point
to the new foo_gpio entries.

The "sus" usb_oc_grp usb_ulpi_grp and pcu_spi_grp pin-groups are special
because these have a non 0 mode value to select the GPIO functions and
these already have matching foo_gpio pin-groups, leave these are unchanged.

The pmu_clk "sus" groups added in commit 2f46d7f7e9 ("pinctrl: baytrail:
Add pinconf group + function for the pmu_clk") do need to use the new
PIN_GROUP_GPIO macro.

Fixes: 2f46d7f7e9 ("pinctrl: baytrail: Add pinconf group + function for the pmu_clk")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-04-08 17:54:48 +03:00
Uwe Kleine-König
05013062a8 pwm: lpss-*: Make use of devm_pwmchip_alloc() function
This prepares the pwm-lpss drivers to further changes of the pwm core
outlined in the commit introducing devm_pwmchip_alloc(). There is no
intended semantical change and the driver should behave as before.

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/b567ab5dd992e361eb884fa6c2cac11be9c7dde3.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2024-02-19 11:04:11 +01:00
Linus Walleij
7085e4e2ff intel-pinctrl for v6.8-1
* New agnostic driver to support Lunar Lake and newer platforms
 * New driver for Intel Meteor Point-S (PCH for Meteor Lake-S)
 * Update drivers to use new PM helpers
 * Use RAII for locking in a few drivers (Raag, Andy)
 * Reduce locking scope in some functions (Raag)
 * Miscellaneous cleanups (Raag)
 
 The following is an automated git shortlog grouped by driver:
 
 alderlake:
  -  Switch to use Intel pin control PM ops
 
 baytrail:
  -  Simplify code with cleanup helpers
  -  Move default strength assignment to a switch-case
  -  Factor out byt_gpio_force_input_mode()
  -  Fix types of config value in byt_pin_config_set()
 
 broxton:
  -  Switch to use Intel pin control PM ops
 
 cannonlake:
  -  Switch to use Intel pin control PM ops
 
 cedarfork:
  -  Switch to use Intel pin control PM ops
 
 denverton:
  -  Switch to use Intel pin control PM ops
 
 elkhartlake:
  -  Switch to use Intel pin control PM ops
 
 emmitsburg:
  -  Switch to use Intel pin control PM ops
 
 geminilake:
  -  Switch to use Intel pin control PM ops
 
 icelake:
  -  Switch to use Intel pin control PM ops
 
 intel:
  -  Add Intel Meteor Point pin controller and GPIO support
  -  use the correct _PM_OPS() export macro
  -  Add a generic Intel pin control platform driver
  -  Revert "Unexport intel_pinctrl_probe()"
  -  allow independent COMPILE_TEST
  -  Refactor intel_pinctrl_get_soc_data()
  -  Move default strength assignment to a switch-case
  -  Make PM ops functions static
  -  Provide Intel pin control wide PM ops structure
 
 jasperlake:
  -  Switch to use Intel pin control PM ops
 
 lakefield:
  -  Switch to use Intel pin control PM ops
 
 lewisburg:
  -  Switch to use Intel pin control PM ops
 
 lynxpoint:
  -  Simplify code with cleanup helpers
 
 meteorlake:
  -  Switch to use Intel pin control PM ops
 
 sunrisepoint:
  -  Switch to use Intel pin control PM ops
 
 tangier:
  -  simplify locking using cleanup helpers
  -  Move default strength assignment to a switch-case
  -  Enable 910 Ohm bias
 
 tigerlake:
  -  Switch to use Intel pin control PM ops
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Merge tag 'intel-pinctrl-v6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into devel

intel-pinctrl for v6.8-1

* New agnostic driver to support Lunar Lake and newer platforms
* New driver for Intel Meteor Point-S (PCH for Meteor Lake-S)
* Update drivers to use new PM helpers
* Use RAII for locking in a few drivers (Raag, Andy)
* Reduce locking scope in some functions (Raag)
* Miscellaneous cleanups (Raag)

The following is an automated git shortlog grouped by driver:

alderlake:
 -  Switch to use Intel pin control PM ops

baytrail:
 -  Simplify code with cleanup helpers
 -  Move default strength assignment to a switch-case
 -  Factor out byt_gpio_force_input_mode()
 -  Fix types of config value in byt_pin_config_set()

broxton:
 -  Switch to use Intel pin control PM ops

cannonlake:
 -  Switch to use Intel pin control PM ops

cedarfork:
 -  Switch to use Intel pin control PM ops

denverton:
 -  Switch to use Intel pin control PM ops

elkhartlake:
 -  Switch to use Intel pin control PM ops

emmitsburg:
 -  Switch to use Intel pin control PM ops

geminilake:
 -  Switch to use Intel pin control PM ops

icelake:
 -  Switch to use Intel pin control PM ops

intel:
 -  Add Intel Meteor Point pin controller and GPIO support
 -  use the correct _PM_OPS() export macro
 -  Add a generic Intel pin control platform driver
 -  Revert "Unexport intel_pinctrl_probe()"
 -  allow independent COMPILE_TEST
 -  Refactor intel_pinctrl_get_soc_data()
 -  Move default strength assignment to a switch-case
 -  Make PM ops functions static
 -  Provide Intel pin control wide PM ops structure

jasperlake:
 -  Switch to use Intel pin control PM ops

lakefield:
 -  Switch to use Intel pin control PM ops

lewisburg:
 -  Switch to use Intel pin control PM ops

lynxpoint:
 -  Simplify code with cleanup helpers

meteorlake:
 -  Switch to use Intel pin control PM ops

sunrisepoint:
 -  Switch to use Intel pin control PM ops

tangier:
 -  simplify locking using cleanup helpers
 -  Move default strength assignment to a switch-case
 -  Enable 910 Ohm bias

tigerlake:
 -  Switch to use Intel pin control PM ops

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2023-12-18 23:42:42 +01:00
Andy Shevchenko
ebe7f33937 pinctrl: intel: Add Intel Meteor Point pin controller and GPIO support
This driver supports pinctrl/GPIO hardware found on Intel Meteor Point
(a Meteor Lake PCH) providing users a pinctrl and GPIO interfaces
including GPIO interrupts.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-12-15 17:09:36 +02:00
Bartosz Golaszewski
c73505c8a0 pinctrl: baytrail: use gpiochip_dup_line_label()
Use the new gpiochip_dup_line_label() helper to safely retrieve the
descriptor label.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2023-12-08 09:26:35 +01:00
Andy Shevchenko
6191e49de3 pinctrl: baytrail: Simplify code with cleanup helpers
Use macros defined in linux/cleanup.h to automate resource lifetime
control in the 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>
2023-11-24 14:33:30 +02:00
Andy Shevchenko
078d83033a pinctrl: baytrail: Move default strength assignment to a switch-case
When ->pin_config_set() is called from the GPIO library (assumed
GpioIo() ACPI resource), the argument can be 1, when, for example,
PullDefault is provided. In such case we supply sane default in
the driver. Move that default assingment to a switch-case, so
it will be consolidated in one place.

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>
2023-11-24 14:33:30 +02:00
Andy Shevchenko
5398a0e23c pinctrl: baytrail: Factor out byt_gpio_force_input_mode()
There is a piece of code that it being used at least twice.
Factor it out.

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>
2023-11-24 14:33:30 +02:00
Andy Shevchenko
1a856a22e6 pinctrl: baytrail: Fix types of config value in byt_pin_config_set()
When unpacked, the config value is split to two of different types.
Fix the types accordingly.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-11-24 14:33:30 +02:00
Andy Shevchenko
9580ba25c5 pinctrl: lynxpoint: Simplify code with cleanup helpers
Use macros defined in linux/cleanup.h to automate resource lifetime
control in the driver.

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>
2023-11-24 14:33:25 +02:00
Raag Jadav
228fe71379 pinctrl: tangier: simplify locking using cleanup helpers
Use lock guards from cleanup.h to simplify locking.

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-11-24 14:33:14 +02:00
Raag Jadav
e58e519b80 pinctrl: intel: use the correct _PM_OPS() export macro
Since we don't have runtime PM handles here, we should be using
EXPORT_NS_GPL_DEV_SLEEP_PM_OPS() macro, so that the compiler can
discard it in case CONFIG_PM_SLEEP=n.

Fixes: b10a74b5c0 ("pinctrl: intel: Provide Intel pin control wide PM ops structure")
Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-11-22 16:19:30 +02:00
Andy Shevchenko
c5860e4a27 pinctrl: intel: Add a generic Intel pin control platform driver
New generations of Intel platforms will provide better description
of the pin control devices in the ACPI tables. Hence, we may provide
a generic pin control platform driver to cover all of them. Currently
the following Intel SoCs / platforms require this to be functional:
- Lunar Lake

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-11-14 14:09:35 +02:00