Add high frequency impedance notification support under DPTF.
This returns high frequency impedance value that can be obtained
from battery fuel gauge whenever there is change over a threshold.
Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@xxxxxxxxx>
---
drivers/acpi/dptf/dptf_power.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/dptf/dptf_power.c b/drivers/acpi/dptf/dptf_power.c
index dc1f52a5b3f4..2ef53ca88714 100644
--- a/drivers/acpi/dptf/dptf_power.c
+++ b/drivers/acpi/dptf/dptf_power.c
@@ -117,7 +117,7 @@ static const struct attribute_group dptf_battery_attribute_group = {
#define POWER_STATE_CHANGED 0x81
#define STEADY_STATE_POWER_CHANGED 0x83
#define POWER_PROP_CHANGE_EVENT 0x84
-#define IMPEDANCED_CHNGED 0x85
+#define IMPEDANCE_CHANGED 0x85
#define VOLTAGE_CURRENT_CHANGED 0x86
static long long dptf_participant_type(acpi_handle handle)
@@ -150,6 +150,9 @@ static void dptf_power_notify(acpi_handle handle, u32 event, void *data)
case STEADY_STATE_POWER_CHANGED:
attr = "max_steady_state_power_mw";
break;
+ case IMPEDANCE_CHANGED:
+ attr = "high_freq_impedance_mohm";
+ break;
case VOLTAGE_CURRENT_CHANGED:
attr = "no_load_voltage_mv";
break;
--
2.17.1
