drivers/intel/dptf: Correct UID for TBAT device
As per Intel Dynamic Tuning Spec revision 1.3.13, section 14.1.2 TBAT
_UID should match the _UID implemented for battery device ACPI object
for OS
_UID for TBAT is currently set to "TBAT" but should be 1.
Battery device is define at src/ec/google/chromeec/acpi/battery.asl
Setting _UID to 1 because right now ChromeOS is the only user
of DPTF driver
TEST: Build and boot brya0
Signed-off-by: Varshit B Pandya <varshit.b.pandya@intel.com>
Change-Id: I1e4474e59cf01f937fbd51e5b674a609f0c47625
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65605
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
diff --git a/src/drivers/intel/dptf/dptf.c b/src/drivers/intel/dptf/dptf.c
index 3cfd23c..4504510 100644
--- a/src/drivers/intel/dptf/dptf.c
+++ b/src/drivers/intel/dptf/dptf.c
@@ -406,7 +406,7 @@
acpigen_write_name("_HID");
if (platform_info->tbat_device_hid != NULL)
dptf_write_hid(platform_info->use_eisa_hids, platform_info->tbat_device_hid);
- acpigen_write_name_string("_UID", "TBAT");
+ acpigen_write_name_string("_UID", "1");
acpigen_write_name_string("_STR", DEFAULT_BATTERY_STR);
acpigen_write_name_integer("PTYP", DPTF_GENERIC_PARTICIPANT_TYPE_BATTERY);
acpigen_write_STA(ACPI_STATUS_DEVICE_ALL_ON);