From 53db5c80f315dc395505e88654f93ea63ca87457 Mon Sep 17 00:00:00 2001
From: Fanda <fanda.vacek@gmail.com>
Date: Tue, 16 Jan 2018 23:33:58 +0000
Subject: [PATCH] Merged in fvacek/nuttx (pull request #572)

Fixed nucleo-l432kc broken build when CONFIG_USERLED_LOWER defined

Approved-by: Gregory Nutt <gnutt@nuttx.org>
---
 configs/nucleo-l432kc/include/board.h     |  2 ++
 configs/nucleo-l432kc/src/nucleo-l432kc.h |  1 +
 configs/nucleo-l432kc/src/stm32_appinit.c | 11 +++++++++++
 3 files changed, 14 insertions(+)

diff --git a/configs/nucleo-l432kc/include/board.h b/configs/nucleo-l432kc/include/board.h
index cbec4b9c37a..dbe6dbe48fa 100644
--- a/configs/nucleo-l432kc/include/board.h
+++ b/configs/nucleo-l432kc/include/board.h
@@ -45,7 +45,9 @@
 # include <stdint.h>
 #endif
 
+#ifdef __KERNEL__
 #include <stm32l4.h>
+#endif
 
 /************************************************************************************
  * Pre-processor Definitions
diff --git a/configs/nucleo-l432kc/src/nucleo-l432kc.h b/configs/nucleo-l432kc/src/nucleo-l432kc.h
index a9ce4bee647..9ce05bc83d3 100644
--- a/configs/nucleo-l432kc/src/nucleo-l432kc.h
+++ b/configs/nucleo-l432kc/src/nucleo-l432kc.h
@@ -87,6 +87,7 @@
 #define GPIO_LD2 \
   (GPIO_PORTA | GPIO_PIN5 | GPIO_OUTPUT_CLEAR | GPIO_OUTPUT | GPIO_PULLUP | \
    GPIO_SPEED_50MHz)
+#define LED_DRIVER_PATH "/dev/userleds"
 
 /* Buttons
  *
diff --git a/configs/nucleo-l432kc/src/stm32_appinit.c b/configs/nucleo-l432kc/src/stm32_appinit.c
index 0422e0cf20c..d3a725c776a 100644
--- a/configs/nucleo-l432kc/src/stm32_appinit.c
+++ b/configs/nucleo-l432kc/src/stm32_appinit.c
@@ -51,6 +51,7 @@
 #include <nuttx/board.h>
 #include <nuttx/sdio.h>
 #include <nuttx/mmcsd.h>
+#include <nuttx/leds/userled.h>
 
 #include <stm32l4.h>
 #include <stm32l4_uart.h>
@@ -135,6 +136,16 @@ int board_app_initialize(uintptr_t arg)
     }
 #endif
 
+#if !defined(CONFIG_ARCH_LEDS) && defined(CONFIG_USERLED_LOWER)
+  /* Register the LED driver */
+
+  ret = userled_lower_initialize(LED_DRIVER_PATH);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: userled_lower_initialize() failed: %d\n", ret);
+    }
+#endif
+
 #ifdef HAVE_RTC_DRIVER
   /* Instantiate the STM32L4 lower-half RTC driver */