1 files changed, 21 insertions, 0 deletions
diff --git a/zephyr/projects/brya/battery_present.c b/zephyr/projects/brya/battery_present.c
new file mode 100644
index 0000000000..c487a01f36
--- /dev/null
+++ b/zephyr/projects/brya/battery_present.c
@@ -0,0 +1,21 @@
+/* Copyright 2022 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#include <zephyr/drivers/gpio.h>
+
+#include "battery.h"
+#include "cbi.h"
+
+enum battery_present battery_hw_present(void)
+{
+	const struct gpio_dt_spec *batt_pres;
+
+	if (get_board_id() == 1)
+		batt_pres = GPIO_DT_FROM_NODELABEL(gpio_id_1_ec_batt_pres_odl);
+	else
+		batt_pres = GPIO_DT_FROM_NODELABEL(gpio_ec_batt_pres_odl);
+
+	/* The GPIO is low when the battery is physically present */
+	return gpio_pin_get_dt(batt_pres) ? BP_NO : BP_YES;
+}