From 7b6ca4be6b24f2c0d863a800b5da3c4e1131db59 Mon Sep 17 00:00:00 2001
From: Karl Palsson <karlp@tweak.net.au>
Date: Wed, 12 Jun 2019 22:08:29 +0000
Subject: doc: stm32l0: rcc: add groups and tags for bus prescalers

---
 include/libopencm3/stm32/l0/rcc.h | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'include')

diff --git a/include/libopencm3/stm32/l0/rcc.h b/include/libopencm3/stm32/l0/rcc.h
index 8fae070b..3bf89416 100644
--- a/include/libopencm3/stm32/l0/rcc.h
+++ b/include/libopencm3/stm32/l0/rcc.h
@@ -171,24 +171,32 @@
 #define RCC_CFGR_STOPWUCK_HSI16		(1<<15)
 
 /* PPRE2: APB high-speed prescaler (APB2) */
+/** @defgroup rcc_cfgr_apb2pre RCC_CFGR APB2 prescale Factors
+@{*/
 #define RCC_CFGR_PPRE2_NODIV		0x0
 #define RCC_CFGR_PPRE2_DIV2		0x4
 #define RCC_CFGR_PPRE2_DIV4		0x5
 #define RCC_CFGR_PPRE2_DIV8		0x6
 #define RCC_CFGR_PPRE2_DIV16		0x7
+/**@}*/
 #define RCC_CFGR_PPRE2_MASK		0x7
 #define RCC_CFGR_PPRE2_SHIFT		11
 
 /* PPRE1: APB low-speed prescaler (APB1) */
+/** @defgroup rcc_cfgr_apb1pre RCC_CFGR APB1 prescale Factors
+@{*/
 #define RCC_CFGR_PPRE1_NODIV		0x0
 #define RCC_CFGR_PPRE1_DIV2		0x4
 #define RCC_CFGR_PPRE1_DIV4		0x5
 #define RCC_CFGR_PPRE1_DIV8		0x6
 #define RCC_CFGR_PPRE1_DIV16		0x7
+/**@}*/
 #define RCC_CFGR_PPRE1_MASK		0x7
 #define RCC_CFGR_PPRE1_SHIFT		8
 
 /* HPRE: AHB prescaler */
+/** @defgroup rcc_cfgr_ahbpre RCC_CFGR AHB prescale Factors
+@{*/
 #define RCC_CFGR_HPRE_NODIV		0x0
 #define RCC_CFGR_HPRE_DIV2		0x8
 #define RCC_CFGR_HPRE_DIV4		0x9
@@ -198,6 +206,7 @@
 #define RCC_CFGR_HPRE_DIV128		0xd
 #define RCC_CFGR_HPRE_DIV256		0xe
 #define RCC_CFGR_HPRE_DIV512		0xf
+/**@}*/
 #define RCC_CFGR_HPRE_MASK		0xf
 #define RCC_CFGR_HPRE_SHIFT		4
 
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