diff options
Diffstat (limited to 'src/ec/google/chromeec/acpi')
| -rw-r--r-- | src/ec/google/chromeec/acpi/ec.asl | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/acpi/ec.asl b/src/ec/google/chromeec/acpi/ec.asl index 7fb2f2449d..b2e65d0e31 100644 --- a/src/ec/google/chromeec/acpi/ec.asl +++ b/src/ec/google/chromeec/acpi/ec.asl @@ -52,6 +52,7 @@ Device (EC0) PATC, 8, // Programmable Auxiliary Trip Commit CHGL, 8, // Charger Current Limit TBMD, 1, // Tablet mode + DDPN, 3, // Device DPTF Profile Number // DFUD must be 0 for the other 31 values to be valid Offset (0x0a), DFUD, 1, // Device Features Undefined @@ -509,6 +510,21 @@ Device (EC0) Return (^TBMD) } + /* Read current Device DPTF Profile Number */ + Method (RCDP, 0, NotSerialized) + { + /* + * DDPN = 0 is reserved for backwards compatibility. + * If DDPN == 0 use TBMD to load appropriate DPTF table. + */ + If (LEqual (^DDPN, 0)) { + Return (^TBMD) + } Else { + Subtract (^DDPN, 1, Local0) + Return (Local0) + } + } + #if IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC_ACPI_USB_PORT_POWER) /* * Enable USB Port Power |