loongson_spi_init_controller
EXPORT_SYMBOL_NS_GPL(loongson_spi_init_controller, "SPI_LOONGSON_CORE");
ret = loongson_spi_init_controller(dev, reg_base);
ret = loongson_spi_init_controller(dev, reg_base);
int loongson_spi_init_controller(struct device *dev, void __iomem *reg);