From 509d7298256e9ea6f4e843d3e89747a64f53a5c9 Mon Sep 17 00:00:00 2001
From: Jussi Kivilinna <jussi.kivilinna@haltian.com>
Date: Wed, 8 Nov 2017 13:08:54 -0600
Subject: [PATCH] drivers/power/bq2429x.c: Add BATIO_OPRTN_SYSON for enabling
 BATFET after SYSOFF

---
 drivers/power/bq2429x.c             | 25 +++++++++++++++++++++++++
 include/nuttx/power/battery_ioctl.h |  1 +
 2 files changed, 26 insertions(+)

diff --git a/drivers/power/bq2429x.c b/drivers/power/bq2429x.c
index 46bc65ebbb..c1fa4fa4e8 100644
--- a/drivers/power/bq2429x.c
+++ b/drivers/power/bq2429x.c
@@ -428,6 +428,27 @@ static int bq2429x_sysoff(FAR struct bq2429x_dev_s *priv)
   return ret;
 }
 
+/****************************************************************************
+ * Name: bq2429x_syson
+ *
+ * Description:
+ *   Turn the internal battery FET on.
+ *
+ ****************************************************************************/
+
+static int bq2429x_syson(FAR struct bq2429x_dev_s *priv)
+{
+  int ret;
+  uint8_t value = 0;
+
+  ret = bq2429x_getreg8(priv, BQ2429X_REG07, &value, 1);
+  batdbg("REG7 read value: 0x%08X\n", value);
+  value &= ~BQ2429XR7_BATFET_DISABLE;
+  ret |= bq2429x_putreg8(priv, BQ2429X_REG07, value);
+
+  return ret;
+}
+
 /****************************************************************************
  * Name: bq2429x_en_term
  *
@@ -1153,6 +1174,10 @@ static int bq2429x_operate(FAR struct battery_charger_dev_s *dev,
         ret = bq2429x_sysoff(priv);
         break;
 
+      case BATIO_OPRTN_SYSON:
+        ret = bq2429x_syson(priv);
+        break;
+
       case BATIO_OPRTN_RESET:
         ret = bq2429x_reset(priv);
         break;
diff --git a/include/nuttx/power/battery_ioctl.h b/include/nuttx/power/battery_ioctl.h
index 3256f1c87f..bf61c093c3 100644
--- a/include/nuttx/power/battery_ioctl.h
+++ b/include/nuttx/power/battery_ioctl.h
@@ -85,6 +85,7 @@ enum batio_operate_e
   BATIO_OPRTN_EN_TERM,
   BATIO_OPRTN_HIZ,
   BATIO_OPRTN_SYSOFF,
+  BATIO_OPRTN_SYSON,
   BATIO_OPRTN_RESET,
   BATIO_OPRTN_WDOG,
   BATIO_OPRTN_END