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authorMatt DeVillier <matt.devillier@puri.sm>2020-02-11 12:38:29 -0600
committerPatrick Georgi <pgeorgi@google.com>2020-02-17 15:33:03 +0000
commit2ae9d698882dd0ce899a0008d5d0526373af407a (patch)
tree899a1f15a603d2081ea579b5383e5fe700f3528a /src/ec/purism
parentca15430bf7d43c2ba0c0684f745f206ab5f70670 (diff)
ec/purism/librem: Add ACPI temp reporting
Add EC ACPI reporting of current temp and platform critical temp. Adapted from ACPI dump of ODM AMI firmware. TEST: check reporting of current/critical temps via lm-sensors from ACPI on Librem 13v1 and 13v4 boards. Change-Id: I92641fbbdda46e0c388607a37f7a7cc2dcd6c26d Signed-off-by: Matt DeVillier <matt.devillier@puri.sm> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38835 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/ec/purism')
-rw-r--r--src/ec/purism/librem/acpi/ec.asl24
1 files changed, 23 insertions, 1 deletions
diff --git a/src/ec/purism/librem/acpi/ec.asl b/src/ec/purism/librem/acpi/ec.asl
index ff325aa9a3..6f6ced1b5c 100644
--- a/src/ec/purism/librem/acpi/ec.asl
+++ b/src/ec/purism/librem/acpi/ec.asl
@@ -52,7 +52,9 @@ Device (EC)
OperationRegion (ERAM, EmbeddedControl, Zero, 0xFF)
Field (ERAM, ByteAcc, Lock, Preserve)
{
- Offset (0x15),
+ Offset (0x13),
+ RTMP, 8,
+ , 8,
BSTS, 2, /* Battery Status */
, 3,
BTEX, 1, /* Battery Present */
@@ -231,3 +233,23 @@ Device (EC)
#include "ac.asl"
#include "battery.asl"
}
+
+Scope (\_TZ)
+{
+ ThermalZone (TZ0)
+ {
+ /* _TMP: Temperature */
+ Method (_TMP, 0, Serialized)
+ {
+ Local0 = (0x0AAC + (\_SB.PCI0.LPCB.EC.RTMP * 0x0A))
+ Return (Local0)
+ }
+
+ /* _CRT: Critical Temperature */
+ Method (_CRT, 0, Serialized)
+ {
+ /* defined in board ec.asl */
+ Return (CRIT_TEMP)
+ }
+ }
+}