diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-11-10 14:40:32 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-11-30 10:53:51 +0100 |
| commit | ce0929d222f8cb18a66611642dc0661d633ce192 (patch) | |
| tree | 4e7cfda831948660ef0d085e38eb8559adb62acf | |
| parent | gpiolib: acpi: Consolidate debug output in acpi_gpio_update_gpiod_flags() (diff) | |
| download | linux-ce0929d222f8cb18a66611642dc0661d633ce192.tar.xz linux-ce0929d222f8cb18a66611642dc0661d633ce192.zip | |
gpiolib: acpi: Add quirks field to struct acpi_gpio_mapping
Some broken ACPI tables might require quirks in the OS.
Introduce quirks field in struct acpi_gpio_mapping.
Propagate them to struct acpi_gpio_info for further use.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/gpio/gpiolib-acpi.c | 10 | ||||
| -rw-r--r-- | drivers/gpio/gpiolib.h | 2 | ||||
| -rw-r--r-- | include/linux/acpi.h | 1 |
3 files changed, 11 insertions, 2 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 88518afa26bd..711f64b9dd30 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -414,7 +414,8 @@ EXPORT_SYMBOL_GPL(devm_acpi_dev_remove_driver_gpios); static bool acpi_get_driver_gpio_data(struct acpi_device *adev, const char *name, int index, - struct acpi_reference_args *args) + struct acpi_reference_args *args, + unsigned int *quirks) { const struct acpi_gpio_mapping *gm; @@ -430,6 +431,8 @@ static bool acpi_get_driver_gpio_data(struct acpi_device *adev, args->args[1] = par->line_index; args->args[2] = par->active_low; args->nargs = 3; + + *quirks = gm->quirks; return true; } @@ -580,6 +583,7 @@ static int acpi_gpio_property_lookup(struct fwnode_handle *fwnode, struct acpi_gpio_lookup *lookup) { struct acpi_reference_args args; + unsigned int quirks = 0; int ret; memset(&args, 0, sizeof(args)); @@ -591,7 +595,8 @@ static int acpi_gpio_property_lookup(struct fwnode_handle *fwnode, if (!adev) return ret; - if (!acpi_get_driver_gpio_data(adev, propname, index, &args)) + if (!acpi_get_driver_gpio_data(adev, propname, index, &args, + &quirks)) return ret; } /* @@ -606,6 +611,7 @@ static int acpi_gpio_property_lookup(struct fwnode_handle *fwnode, lookup->active_low = !!args.args[2]; lookup->info.adev = args.adev; + lookup->info.quirks = quirks; return 0; } diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index b23aeaf5ac9e..cd4622863fe1 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -80,6 +80,7 @@ struct gpio_device { * @gpioint: if %true this GPIO is of type GpioInt otherwise type is GpioIo * @polarity: interrupt polarity as provided by ACPI * @triggering: triggering type as provided by ACPI + * @quirks: Linux specific quirks as provided by struct acpi_gpio_mapping */ struct acpi_gpio_info { struct acpi_device *adev; @@ -87,6 +88,7 @@ struct acpi_gpio_info { bool gpioint; int polarity; int triggering; + unsigned int quirks; }; /* gpio suffixes used for ACPI and device tree lookup */ diff --git a/include/linux/acpi.h b/include/linux/acpi.h index dc1ebfeeb5ec..25fe77fccea0 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -978,6 +978,7 @@ struct acpi_gpio_mapping { const char *name; const struct acpi_gpio_params *data; unsigned int size; + unsigned int quirks; }; #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) |