diff options
| author | Daniel Scally <djrscally@gmail.com> | 2021-06-04 01:40:02 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-06-07 17:45:05 +0300 |
| commit | a9e10e58730432e5de840eb3ddd55c75f29341b3 (patch) | |
| tree | ebff977d1bb1207a9a278b072b5f0d30be7f3e0f /drivers/gpio | |
| parent | 6d27975851b134be8d2a170437210c9719e524aa (diff) | |
| download | linux-a9e10e58730432e5de840eb3ddd55c75f29341b3.tar.xz | |
ACPI: scan: Extend acpi_walk_dep_device_list()
The acpi_walk_dep_device_list() function is not as generic as its
name implies, serving only to decrement the dependency count for each
dependent device of the input.
Extend it to accept a callback which can be applied to all the
dependencies in acpi_dep_list.
Replace all existing calls to the function with calls to a wrapper,
passing a callback that applies the same dependency reduction.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Maximilian Luz <luzmaximilian@gmail.com> # for platform/surface parts
Signed-off-by: Daniel Scally <djrscally@gmail.com>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib-acpi.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 3ef22a3c104d..5b4111e4be3f 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -1233,14 +1233,14 @@ static void acpi_gpiochip_scan_gpios(struct acpi_gpio_chip *achip) void acpi_gpiochip_add(struct gpio_chip *chip) { struct acpi_gpio_chip *acpi_gpio; - acpi_handle handle; + struct acpi_device *adev; acpi_status status; if (!chip || !chip->parent) return; - handle = ACPI_HANDLE(chip->parent); - if (!handle) + adev = ACPI_COMPANION(chip->parent); + if (!adev) return; acpi_gpio = kzalloc(sizeof(*acpi_gpio), GFP_KERNEL); @@ -1254,7 +1254,7 @@ void acpi_gpiochip_add(struct gpio_chip *chip) INIT_LIST_HEAD(&acpi_gpio->events); INIT_LIST_HEAD(&acpi_gpio->deferred_req_irqs_list_entry); - status = acpi_attach_data(handle, acpi_gpio_chip_dh, acpi_gpio); + status = acpi_attach_data(adev->handle, acpi_gpio_chip_dh, acpi_gpio); if (ACPI_FAILURE(status)) { dev_err(chip->parent, "Failed to attach ACPI GPIO chip\n"); kfree(acpi_gpio); @@ -1263,7 +1263,7 @@ void acpi_gpiochip_add(struct gpio_chip *chip) acpi_gpiochip_request_regions(acpi_gpio); acpi_gpiochip_scan_gpios(acpi_gpio); - acpi_walk_dep_device_list(handle); + acpi_dev_clear_dependencies(adev); } void acpi_gpiochip_remove(struct gpio_chip *chip) |