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Refactor x86_android_tablet_get_gpiod() to no longer use
gpiolib private functions like gpiochip_find().
As a bonus this allows specifying that the GPIO is active-low,
like the /CE (charge enable) pin on the bq25892 charger on
the Lenovo Yoga Tablet 3.
Reported-by: Bartosz Golaszewski <brgl@bgdev.pl>
Closes: https://lore.kernel.org/platform-driver-x86/20230905185309.131295-12-brgl@bgdev.pl/
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230909141816.58358-7-hdegoede@redhat.com
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Modify the gpio_keys support in x86_android_tablet_init() for
tablets which have more then 1 key/button which needs to be handled
by the gpio_keys driver.
This requires copying over the struct gpio_keys_button from
the x86_gpio_button struct array to a new gpio_keys_button struct array,
as an added benefit this allows marking the per model x86_gpio_button
arrays __initconst so that they all can be freed after module init().
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230505205901.42649-1-hdegoede@redhat.com
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settings
Since commit 5adc409340b1 ("ACPI: x86: Introduce an
acpi_quirk_skip_gpio_event_handlers() helper") the ACPI GPIO code will
not register any GPIO event handlers at all for devices which have
the ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS set in their DMI table entry
in drivers/acpi/x86/utils.c .
This includes the Nextbook Ares 8 and the Asus ME176C and TF103C models,
so x86-android-tablets no longer needs to disable the GPIO event handlers
on these, since they have never been registered at all.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230429105057.7697-2-hdegoede@redhat.com
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x86_android_tablet_init()
Add gpio_keys instantation support to x86_android_tablet_init(), to avoid
this having to be repeated in various x86_dev_info.init() functions.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20230301092331.7038-10-hdegoede@redhat.com
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Move the info for the Asus tablets to their own asus.c file.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20230301092331.7038-7-hdegoede@redhat.com
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