boards/thing52: enable VDD pin for hts221 or lps22hb devices

boards/thingy52/board.c

@@ -21,8 +21,19 @@
 #include "cpu.h"
 #include "board.h"
 
+#if defined(MODULE_LPS22HB) || defined(MODULE_HTS221)
+#include "periph/gpio.h"
+#endif
+
 void board_init(void)
 {
+    /* LP22HB and HTS221 can only be powered with VREG when VDD_PWR_CTRL_PIN
+       is set. */
+#if defined(MODULE_LPS22HB) || defined(MODULE_HTS221)
+    gpio_init(VDD_PWR_CTRL_PIN, GPIO_OUT);
+    gpio_set(VDD_PWR_CTRL_PIN);
+#endif
+
     /* initialize the CPU */
     cpu_init();
 }

boards/thingy52/include/board.h

@@ -33,6 +33,14 @@ extern "C" {
 #define BTN0_MODE           GPIO_IN_PU
 /** @} */
 
+/**
+ * @name    Power switch pins definitions
+ * @{
+ */
+#define SPK_PWR_CTRL_PIN    GPIO_PIN(0, 29) /**< Speaker power switch */
+#define VDD_PWR_CTRL_PIN    GPIO_PIN(0, 30) /**< VDD power switch */
+/** @} */
+
 /**
  * @name    LIS2DH12 low power accelerometer configuration
  * @{