Fix hardfault when DCache is disabled with no callback (#1935)

2020-11-27 03:12:21 +03:00
parent 2f6eaa516c
commit 48a676f404
1 changed files with 2 additions and 1 deletions
--- a/src/lv_gpu/lv_gpu_stm32_dma2d.c
+++ b/src/lv_gpu/lv_gpu_stm32_dma2d.c
@@ -241,7 +241,8 @@ static void invalidate_cache(void)
    if(disp->driver.clean_dcache_cb) disp->driver.clean_dcache_cb(&disp->driver);
    else {
 #if __CORTEX_M >= 0x07
-        SCB_CleanInvalidateDCache();
+    	if((SCB->CCR) & (uint32_t)SCB_CCR_DC_Msk)
+    		SCB_CleanInvalidateDCache();
 #endif
    }
 }