GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

google/chromeec/acpi/ec: Add support for Device DPTF Profile Number 

In order to support Multi-DPTF profile, Device DPTF Profile Number is
introduced into EC_ACPI_MEM_DEVICE_ORIENTATION ACPI Space at offset
0x09. This bit field stays along with Tablet Mode Device flag.

BUG=b:118149364
BRANCH=None
TEST=Ensured that the expected DPTF table are loaded in different
modes(base attached/detached and clamshell/360-flipped) on Soraka and
Nautilus.

Change-Id: Ie14916ac16c50cbe0990021e2eb03d5121cd0e07
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/29248
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
This commit is contained in:
Karthikeyan Ramasubramanian 2018-10-23 22:16:36 -06:00 committed by Furquan Shaikh
parent 017b5c453a
commit 036ccd73a3
1 changed files with 16 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/ec/google/chromeec/acpi/ec.asl
View File

@ -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