commit 6d366802f9339300086202ae1f57d34d20d3ae58
author Fred Chen <Fred.Chen@quantatw.com> Thu Sep 11 20:39:18 2025 +0800
committer Patrick Williams <patrick@stwcx.xyz> Fri Sep 19 11:20:35 2025 -0400
tree f1c89e3ee5dc10b7e4978a9d25881110bf280fb2
parent 8785890887aad7eb3a7e9c5683a95886db77cbf8

configurations: santabarbara: adjust pdb1 tsense scale

Use curr1 to compute the NCT thermistor for more accurate cable tsense
temperature. Since hwmon driver min unit is 1 mA but sensor requires
µA-level precision, adjust DTS rshunt to scale up readings, then convert
back in dbus-sensors for correct current.

Change-Id: I5cbd2f0e14d9b84d7716a153dcb1974e632b665b
Signed-off-by: Fred Chen <Fred.Chen@quantatw.com>

configurations/meta/santabarbara/santabarbara_pdb1.json

diff --git a/configurations/meta/santabarbara/santabarbara_pdb1.json b/configurations/meta/santabarbara/santabarbara_pdb1.json
index faab3e4..32f3296 100644
--- a/configurations/meta/santabarbara/santabarbara_pdb1.json
+++ b/configurations/meta/santabarbara/santabarbara_pdb1.json
@@ -70,7 +70,10 @@
             ],
             "Name": "PDB1_BUSBAR_TSENSE_P1",
             "Type": "INA238",
-            "curr1_Name": "PDB1_BUSBAR_TSENSE_P1_CURR_A"
+            "curr1_Max": 0.1,
+            "curr1_Min": 0,
+            "curr1_Name": "PDB1_BUSBAR_TSENSE_P1_CURR_A",
+            "curr1_Scale": 50000
         },
         {
             "Address": "0x4d",
@@ -80,7 +83,10 @@
             ],
             "Name": "PDB1_BUSBAR_TSENSE_P2",
             "Type": "INA238",
-            "curr1_Name": "PDB1_BUSBAR_TSENSE_P2_CURR_A"
+            "curr1_Max": 0.1,
+            "curr1_Min": 0,
+            "curr1_Name": "PDB1_BUSBAR_TSENSE_P2_CURR_A",
+            "curr1_Scale": 50000
         },
         {
             "Address": "0x45",