Tim Wawrzynczak has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/56834 )
Change subject: drivers/uart/acpi: Update _S0W return value to D3hot ......................................................................
drivers/uart/acpi: Update _S0W return value to D3hot
In order to support wake from D3cold, most devices require extra circuitry and possibly out-of-band communications to the host. Therefore, assume that most UARTs that do have wake capabilities support wake from D3hot rather than D3cold.
BUG=b:187228954 TEST=compile
Change-Id: I24d6d0e81d980fc9c910d8f47f557c88990b6400 Signed-off-by: Tim Wawrzynczak twawrzynczak@chromium.org --- M src/drivers/uart/acpi/acpi.c 1 file changed, 1 insertion(+), 1 deletion(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/34/56834/1
diff --git a/src/drivers/uart/acpi/acpi.c b/src/drivers/uart/acpi/acpi.c index d4b14aa..3081182 100644 --- a/src/drivers/uart/acpi/acpi.c +++ b/src/drivers/uart/acpi/acpi.c @@ -89,7 +89,7 @@
/* Wake capabilities */ if (config->wake) { - acpigen_write_name_integer("_S0W", ACPI_DEVICE_SLEEP_D3_COLD); + acpigen_write_name_integer("_S0W", ACPI_DEVICE_SLEEP_D3_HOT); acpigen_write_PRW(config->wake, SLP_TYP_S3); };