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stm32: use DSB to ensure GPU clock gets enabled

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Themba Dube
2020-10-18 12:32:22 -04:00
parent 4ca5d4e86d
commit 3d4284b02c
1 changed files with 4 additions and 1 deletions
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5
src/lv_gpu/lv_gpu_stm32_dma2d.c
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@@ -69,7 +69,10 @@ void lv_gpu_stm32_dma2d_init(void)
RCC->AHB3ENR |= RCC_AHB3ENR_DMA2DEN; RCC->AHB3ENR |= RCC_AHB3ENR_DMA2DEN;
#else #else
# warning "LVGL can't enable the clock of DMA2D" # warning "LVGL can't enable the clock of DMA2D"
#endif #endif
/* Wait for hardware access to complete */
__asm volatile("DSB\n");
/* Delay after setting peripheral clock */ /* Delay after setting peripheral clock */
volatile uint32_t temp = RCC->AHB1ENR; volatile uint32_t temp = RCC->AHB1ENR;