doxygen/SPI: don't include overridden typedefs

Add missing #ifndefs to overridden SPI typedefs.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>

cpu/atmega_common/include/periph_cpu_common.h

@@ -84,6 +84,7 @@ typedef enum {
 #define PERIPH_SPI_NEEDS_TRANSFER_REGS
 /** @} */
 
+#ifndef DOXYGEN
 /**
  * @brief   SPI mode select macro
  *
@@ -131,6 +132,7 @@ typedef enum {
     SPI_CLK_10MHZ  = SPI_CLK_SEL(1, 0, 0)       /**< 16/2   -> 8MHz */
 } spi_clk_t;
 /** @} */
+#endif /* ndef DOXYGEN */
 
 /**
  * @brief  Bitmasks indicating which are the possible dividers for a timer

cpu/cc2538/include/periph_cpu.h

@@ -206,7 +206,6 @@ typedef enum {
    UART_STOP_BITS_2 = UART_LCRH_STP2,     /**< 2 stop bits */
 } uart_stop_bits_t;
 /** @} */
-#endif /* DOXYGEN */
 
 /**
  * @name   Override SPI mode settings
@@ -234,6 +233,7 @@ typedef enum {
     SPI_CLK_10MHZ  = 4      /**< drive the SPI bus with 10MHz */
 } spi_clk_t;
 /** @} */
+#endif /* ndef DOXYGEN */
 
 /**
  * @brief   Datafields for static SPI clock configuration values

cpu/lm4f120/include/periph_cpu.h

@@ -142,6 +142,7 @@ typedef struct {
 #define PERIPH_SPI_NEEDS_INIT_CS 1
 /** @} */
 
+#ifndef DOXYGEN
 /**
  * @brief   Override SPI clock speed values
  * @{
@@ -169,6 +170,7 @@ typedef enum {
     SPI_MODE_3 = SSI_FRF_MOTO_MODE_0,       /**< CPOL=1, CPHA=1 */
 } spi_mode_t;
 /** @} */
+#endif /* ndef DOXYGEN */
 
 #ifdef __cplusplus
 }

cpu/lpc2387/include/periph_cpu.h

@@ -99,6 +99,7 @@ typedef struct {
 #define PERIPH_SPI_NEEDS_TRANSFER_REGS
 /* @} */
 
+#ifndef DOXYGEN
 /**
  * @brief   Override SPI clock speed values
  * @{
@@ -112,6 +113,7 @@ typedef enum {
     SPI_CLK_10MHZ  = 10000  /**< drive the SPI bus with 10MHz */
 } spi_clk_t;
 /** @} */
+#endif /* ndef DOXYGEN */
 
 /* @} */
 #ifdef __cplusplus

cpu/nrf5x_common/include/periph_cpu_common.h

@@ -128,6 +128,7 @@ typedef struct {
     uint8_t irqn;           /**< IRQ number of the timer device */
 } timer_conf_t;
 
+#ifndef DOXYGEN
 /**
  * @brief   Override SPI mode values
  * @{
@@ -154,6 +155,7 @@ typedef enum {
     SPI_CLK_10MHZ  = SPI_FREQUENCY_FREQUENCY_M8     /**< 10MHz */
 } spi_clk_t;
 /** @} */
+#endif /* ndef DOXYGEN */
 
 /**
  * @brief  SPI configuration values

cpu/sam0_common/include/periph_cpu_common.h

@@ -228,6 +228,7 @@ typedef enum {
     SPI_PAD_MOSI_0_SCK_3 = 0x3, /**< use pad 0 for MOSI, pad 3 for SCK */
 } spi_mosipad_t;
 
+#ifndef DOXYGEN
 /**
  * @brief   Override SPI modes
  * @{
@@ -254,6 +255,7 @@ typedef enum {
     SPI_CLK_10MHZ  = 10000000U  /**< drive the SPI bus with 10MHz */
 } spi_clk_t;
 /** @} */
+#endif /* ndef DOXYGEN */
 
 /**
  * @brief   SPI device configuration

cpu/sam3/include/periph_cpu.h

@@ -149,6 +149,7 @@ typedef enum {
     GPIO_MUX_B = 1,         /**< alternate function B */
 } gpio_mux_t;
 
+#ifndef DOXYGEN
 /**
  * @brief   Override default SPI modes
  * @{
@@ -175,6 +176,7 @@ typedef enum {
     SPI_CLK_10MHZ  = (10000000)                     /**< 10MHz */
 } spi_clk_t;
 /** @} */
+#endif /* ndef DOXYGEN */
 
 #ifndef DOXYGEN
 /**