diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-11-04 18:09:39 +0200 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-11-13 15:30:30 +0200 |
| commit | b056ca1c2f01b2d261c2dd6d167c17ac27977034 (patch) | |
| tree | 36e9dcf5172aad727f999868252887d4a2b89a9e /include/linux/gpio | |
| parent | 6b240aeb121ec14a528a58413baa9a74f8749604 (diff) | |
| download | linux-b056ca1c2f01b2d261c2dd6d167c17ac27977034.tar.gz linux-b056ca1c2f01b2d261c2dd6d167c17ac27977034.tar.bz2 linux-b056ca1c2f01b2d261c2dd6d167c17ac27977034.zip | |
gpiolib: Introduce ->add_pin_ranges() callback
When IRQ chip is being added by GPIO library, the ACPI based platform expects
GPIO <-> pin mapping ranges to be initialized in order to correctly initialize
ACPI event mechanism on affected platforms. Unfortunately this step is missed.
Introduce ->add_pin_ranges() callback to fill the above mentioned gap.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'include/linux/gpio')
| -rw-r--r-- | include/linux/gpio/driver.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index cc9ade4552d9..e2480ef94c55 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -289,6 +289,9 @@ struct gpio_irq_chip { * state (such as pullup/pulldown configuration). * @init_valid_mask: optional routine to initialize @valid_mask, to be used if * not all GPIOs are valid. + * @add_pin_ranges: optional routine to initialize pin ranges, to be used when + * requires special mapping of the pins that provides GPIO functionality. + * It is called after adding GPIO chip and before adding IRQ chip. * @base: identifies the first GPIO number handled by this chip; * or, if negative during registration, requests dynamic ID allocation. * DEPRECATION: providing anything non-negative and nailing the base @@ -379,6 +382,8 @@ struct gpio_chip { unsigned long *valid_mask, unsigned int ngpios); + int (*add_pin_ranges)(struct gpio_chip *chip); + int base; u16 ngpio; const char *const *names; |