RCC_D2CFGR 442 drivers/clk/clk-stm32h7.c prescaler = (readl(base + RCC_D2CFGR) >> dppre_shift) & 0x03; RCC_D2CFGR 534 drivers/clk/clk-stm32h7.c base + RCC_D2CFGR, 4, 3, 0, RCC_D2CFGR 543 drivers/clk/clk-stm32h7.c base + RCC_D2CFGR, 8, 3, 0, ppre_div_table,