diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2016-05-16 15:32:30 -0700 |
|---|---|---|
| committer | Duncan Laurie <dlaurie@google.com> | 2016-05-21 06:03:22 +0200 |
| commit | 2e63c2a566a143b31777fb2ead6a2c8d5b76ebeb (patch) | |
| tree | 7ce787d227fe09f9ef2504ad54cb885cc0b87b0f | |
| parent | 66bd65d0f7b11bbb8dd4db73bfa95f0c51addddc (diff) | |
| download | coreboot-2e63c2a566a143b31777fb2ead6a2c8d5b76ebeb.tar.xz | |
apollolake: Add handler for finding ACPI path for GPIO
Add a handler for soc/intel/apollolake to return the ACPI path for
GPIOs. There are 4 GPIO "communities" on apollolake that each have a
different ACPI device so return the appropriate name for the different
communities.
Change-Id: I596c178b7813ac6aaeb4f2685bb916f5b78e049b
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14859
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
| -rw-r--r-- | src/soc/intel/apollolake/gpio.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/gpio.c b/src/soc/intel/apollolake/gpio.c index 06db8c965a..d0ef6482da 100644 --- a/src/soc/intel/apollolake/gpio.c +++ b/src/soc/intel/apollolake/gpio.c @@ -114,3 +114,21 @@ void gpio_set(gpio_t gpio_num, int value) reg |= !!value & PAD_CFG0_TX_STATE; iosf_write(comm->port, config_offset, reg); } + +const char *gpio_acpi_path(gpio_t gpio_num) +{ + const struct pad_community *comm = gpio_get_community(gpio_num); + + switch (comm->port) { + case GPIO_NORTH: + return "\\_SB.GPO0"; + case GPIO_NORTHWEST: + return "\\_SB.GPO1"; + case GPIO_WEST: + return "\\_SB.GPO2"; + case GPIO_SOUTHWEST: + return "\\_SB.GPO3"; + } + + return NULL; +} |