From fe9be72bec1b388afdfbd956663b453faa308b42 Mon Sep 17 00:00:00 2001
From: Jussi Kivilinna <jussi.kivilinna@haltian.com>
Date: Fri, 20 Oct 2017 08:33:44 -0600
Subject: [PATCH] drivers/sensors/hts221: power-on sensor for loading
 calibration data

---
 drivers/sensors/hts221.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/sensors/hts221.c b/drivers/sensors/hts221.c
index 100bdc26fb..b4dbc6dab6 100644
--- a/drivers/sensors/hts221.c
+++ b/drivers/sensors/hts221.c
@@ -1153,6 +1153,8 @@ int hts221_register(FAR const char *devpath, FAR struct i2c_master_s *i2c,
   priv->config = config;
   nxsem_init(&priv->devsem, 0, 1);
 
+  priv->config->set_power(priv->config, true);
+
   ret = hts221_load_calibration_data(priv);
   if (ret < 0)
     {
@@ -1179,5 +1181,6 @@ int hts221_register(FAR const char *devpath, FAR struct i2c_master_s *i2c,
 
   priv->config->irq_attach(priv->config, hts221_int_handler, priv);
   priv->config->irq_enable(priv->config, false);
+  priv->config->set_power(priv->config, false);
   return OK;
 }