From 42d1346b6e4f3311570ccaa1924efdf75ccfa5fa Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Tue, 17 Feb 2015 13:52:17 -0600
Subject: [PATCH] tm4c123g-launchad:  Add ADC support.  From Calvin Maguranis.

---
 configs/tm4c123g-launchpad/src/Makefile   | 2 +-
 configs/tm4c123g-launchpad/src/tm4c_adc.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/configs/tm4c123g-launchpad/src/Makefile b/configs/tm4c123g-launchpad/src/Makefile
index 585669af7d2..55043fae966 100644
--- a/configs/tm4c123g-launchpad/src/Makefile
+++ b/configs/tm4c123g-launchpad/src/Makefile
@@ -54,7 +54,7 @@ CSRCS += tm4c_timer.c
 endif
 
 ifeq ($(CONFIG_TIVA_ADC),y)
-CHIP_CSRCS += tm4c_adc.c
+CSRCS += tm4c_adc.c
 endif
 
 ifeq ($(CONFIG_MTD_AT24XX),y)
diff --git a/configs/tm4c123g-launchpad/src/tm4c_adc.c b/configs/tm4c123g-launchpad/src/tm4c_adc.c
index 79abcd1380b..142297a0f32 100644
--- a/configs/tm4c123g-launchpad/src/tm4c_adc.c
+++ b/configs/tm4c123g-launchpad/src/tm4c_adc.c
@@ -101,6 +101,10 @@ int board_adc_initialize(void)
           return ret;
         }
 
+      /* Enable ADC interrupts */
+
+      adc->ad_ops->ao_rxint(adc, true);
+
       /* Now we are initialized */
 
       initialized = true;