diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/acpi/acpi_dp.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/acpi/acpi_dp.c b/lib/acpi/acpi_dp.c index 32528e1ec4..e8de5651c8 100644 --- a/lib/acpi/acpi_dp.c +++ b/lib/acpi/acpi_dp.c @@ -321,3 +321,26 @@ struct acpi_dp *acpi_dp_add_integer_array(struct acpi_dp *dp, const char *name, return dp_array; } + +struct acpi_dp *acpi_dp_add_gpio(struct acpi_dp *dp, const char *name, + const char *ref, int index, int pin, + enum acpi_irq_polarity polarity) +{ + struct acpi_dp *gpio; + + assert(dp); + gpio = acpi_dp_new_table(name); + if (!gpio) + return NULL; + + if (!acpi_dp_add_reference(gpio, NULL, ref) || + !acpi_dp_add_integer(gpio, NULL, index) || + !acpi_dp_add_integer(gpio, NULL, pin) || + !acpi_dp_add_integer(gpio, NULL, polarity == ACPI_IRQ_ACTIVE_LOW)) + return NULL; + + if (!acpi_dp_add_array(dp, gpio)) + return NULL; + + return gpio; +} |