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drivers: flash: stm32 qspi driver setting dma priority

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This adds a table to set the dma channel priority from the DTS
The config bits are converted through the table_priority
to match the DMA_Priority_level of the stm32cube HAL.
Fixes #46725

Signed-off-by: Francois Ramu <francois.ramu@st.com>
This commit is contained in:
Francois Ramu 2022-06-22 11:17:11 +02:00 • committed by Carles Cufí
commit 7f10bd6340
1 changed files with 9 additions and 1 deletions
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10
drivers/flash/flash_stm32_qspi.c
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@ -60,6 +60,14 @@ uint32_t table_p_size[] = {
LL_DMA_PDATAALIGN_WORD,
};
/* Lookup table to set dma priority from the DTS */
uint32_t table_priority[] = {
DMA_PRIORITY_LOW,
DMA_PRIORITY_MEDIUM,
DMA_PRIORITY_HIGH,
DMA_PRIORITY_VERY_HIGH,
};
typedef void (*irq_config_func_t)(const struct device *dev);
struct stream {
@ -1103,7 +1111,7 @@ static int flash_stm32_qspi_init(const struct device *dev)
hdma.Init.PeriphInc = DMA_PINC_DISABLE;
hdma.Init.MemInc = DMA_MINC_ENABLE;
hdma.Init.Mode = DMA_NORMAL;
hdma.Init.Priority = dma_cfg.channel_priority;
hdma.Init.Priority = table_priority[dma_cfg.channel_priority];
#ifdef CONFIG_DMA_STM32_V1
/* TODO: Not tested in this configuration */
hdma.Init.Channel = dma_cfg.dma_slot;