STM32H7_SPI_IFCR
writel_relaxed(sr & mask, spi->base + STM32H7_SPI_IFCR);
writel_relaxed(sr & STM32H7_SPI_SR_SUSP, spi->base + STM32H7_SPI_IFCR);
writel_relaxed(STM32H7_SPI_IFCR_ALL, spi->base + STM32H7_SPI_IFCR);