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>

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>

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: c5860e4a2737 ("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>

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>

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>

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>

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>

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>

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>

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>