meta-romulus: Add iio-hwmon-battery config
Romulus has RTC battery monitored by aspeed adc, add the config for
hwmon to create /xyz/openbmc_project/sensors/voltage/vbat dbus object.
Tested: With romulus dts enabled iio-hwmon-battery, verify the above
vbat dbus object is created and the value is expected.
(From meta-ibm rev: 72cab616d3ba7ecb777e6e53d1d0f602ea25da58)
Change-Id: I1acb4890aa68cb87f145d28e3fbcac1264ed4285
Signed-off-by: Lei YU <mine260309@gmail.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-ibm/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon%.bbappend b/meta-ibm/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon%.bbappend
index 536d797..1d12430 100644
--- a/meta-ibm/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon%.bbappend
+++ b/meta-ibm/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon%.bbappend
@@ -10,6 +10,8 @@
ITEMS = "${@compose_list(d, 'ITEMSFMT', 'CHIPS')}"
+ITEMS += "iio-hwmon-battery.conf"
+
OCCS = " \
00--00--00--06/sbefifo1-dev0/occ-hwmon.1 \
00--00--00--0a/fsi1/slave@01--00/01--01--00--06/sbefifo2-dev0/occ-hwmon.2 \
diff --git a/meta-ibm/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon%/obmc/hwmon/iio-hwmon-battery.conf b/meta-ibm/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon%/obmc/hwmon/iio-hwmon-battery.conf
new file mode 100644
index 0000000..c72b3b5
--- /dev/null
+++ b/meta-ibm/meta-romulus/recipes-phosphor/sensors/phosphor-hwmon%/obmc/hwmon/iio-hwmon-battery.conf
@@ -0,0 +1,8 @@
+LABEL_in1=vbat
+GAIN_in1=2.25
+
+# GPIOR3 needs to be pulled high for battery voltage reading
+GPIO_in1=139
+
+# Read it every day so it does not impact battery life
+INTERVAL=86400000000