From b3989bc11fcd7042b75ea2f9769971516618f5f6 Mon Sep 17 00:00:00 2001
From: Jue <me@jue.yt>
Date: Mon, 17 Oct 2022 23:07:54 +0200
Subject: [PATCH] cpu/efm32: remove ADC defintion for CPUs without ADC

Gecko Series 2 is shipped with a new IADC peripheral which is backed by its own emlib driver.
---
 cpu/efm32/include/periph_cpu.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cpu/efm32/include/periph_cpu.h b/cpu/efm32/include/periph_cpu.h
index 91961945ee..8df5ecada2 100644
--- a/cpu/efm32/include/periph_cpu.h
+++ b/cpu/efm32/include/periph_cpu.h
@@ -41,6 +41,7 @@
 extern "C" {
 #endif
 
+#if (defined(ADC_COUNT) && (ADC_COUNT > 0)) || defined(DOXYGEN)
 /**
  * @brief   Internal macro for combining ADC resolution (x) with number of
  *          shifts (y).
@@ -90,6 +91,7 @@ typedef struct {
     ADC_Ref_TypeDef reference;        /**< channel voltage reference */
     ADC_AcqTime_TypeDef acq_time;     /**< channel acquisition time */
 } adc_chan_conf_t;
+#endif
 
 /**
  * @brief   Length of CPU ID in octets.