soc/intel/common/rtd3: Use D3COLD_SUPPORT to set max sleep state
Use D3COLD_SUPPORT Kconfig option to set the maximum support sleep
state. Report `4` in `_S0W` only when D3COLD_SUPPORT is enabled, as
if it is not, it will break S3 exit.
When D3COLD_SUPPORT is not enabled, return `3` (D3Hot).
This fixed S3 exit on both TGL and ADL. Tested on StarBook
Mk V and Mk VI.
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: I578d4933b6144aec79fe0b2eb168338ef82c0b9d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74406
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
diff --git a/src/soc/intel/common/block/pcie/rtd3/rtd3.c b/src/soc/intel/common/block/pcie/rtd3/rtd3.c
index 5067ac3..8b372ed 100644
--- a/src/soc/intel/common/block/pcie/rtd3/rtd3.c
+++ b/src/soc/intel/common/block/pcie/rtd3/rtd3.c
@@ -511,7 +511,10 @@
acpigen_write_device(acpi_device_name(dev));
acpigen_write_ADR(0);
acpigen_write_STA(ACPI_STATUS_DEVICE_ALL_ON);
- acpigen_write_name_integer("_S0W", ACPI_DEVICE_SLEEP_D3_COLD);
+ if (CONFIG(D3COLD_SUPPORT))
+ acpigen_write_name_integer("_S0W", ACPI_DEVICE_SLEEP_D3_COLD);
+ else
+ acpigen_write_name_integer("_S0W", ACPI_DEVICE_SLEEP_D3_HOT);
acpi_device_add_storage_d3_enable(NULL);