dma: stm32: removal of unused stm32_dma_config_channel_function

Function stm32_dma_config_channel_function is unused hence remove it
from headers and dma_stm32_v1. In case of dma_stm32_v1, the related
configuration is already part of the LL_DMA_Init call done in
another place in dma_stm32.

Signed-off-by: Alain Volmat <[email protected]>

Author: Alain Volmat

drivers/dma/dma_stm32.h

@@ -95,11 +95,6 @@ void stm32_dma_enable_stream(DMA_TypeDef *dma, uint32_t id);
 bool stm32_dma_is_enabled_stream(DMA_TypeDef *dma, uint32_t id);
 int stm32_dma_disable_stream(DMA_TypeDef *dma, uint32_t id);
 
-#if !defined(CONFIG_DMAMUX_STM32)
-void stm32_dma_config_channel_function(DMA_TypeDef *dma, uint32_t id,
-						uint32_t slot);
-#endif
-
 #ifdef CONFIG_DMA_STM32_V1
 void stm32_dma_disable_fifo_irq(DMA_TypeDef *dma, uint32_t id);
 bool stm32_dma_check_fifo_mburst(LL_DMA_InitTypeDef *DMAx);

drivers/dma/dma_stm32_bdma.h

@@ -73,11 +73,6 @@ bool stm32_bdma_is_irq_happened(BDMA_TypeDef *dma, uint32_t id);
 void stm32_bdma_enable_channel(BDMA_TypeDef *dma, uint32_t id);
 int stm32_bdma_disable_channel(BDMA_TypeDef *dma, uint32_t id);
 
-#if !defined(CONFIG_DMAMUX_STM32)
-void stm32_dma_config_channel_function(BDMA_TypeDef *dma, uint32_t id,
-						uint32_t slot);
-#endif
-
 #ifdef CONFIG_DMAMUX_STM32
 /* bdma_stm32_ api functions are exported to the bdmamux_stm32 */
 #define BDMA_STM32_EXPORT_API

drivers/dma/dma_stm32_v1.c

@@ -345,15 +345,6 @@ void stm32_dma_disable_fifo_irq(DMA_TypeDef *dma, uint32_t id)
 	LL_DMA_DisableIT_FE(dma, dma_stm32_id_to_stream(id));
 }
 
-#if !defined(CONFIG_DMAMUX_STM32)
-void stm32_dma_config_channel_function(DMA_TypeDef *dma, uint32_t id,
-					uint32_t slot)
-{
-	LL_DMA_SetChannelSelection(dma, dma_stm32_id_to_stream(id),
-			dma_stm32_slot_to_channel(slot));
-}
-#endif
-
 uint32_t stm32_dma_get_mburst(struct dma_config *config, bool source_periph)
 {
 	uint32_t memory_burst;