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CONFIG_SPI_S3C24XX_FIQ: S3C24XX driver with FIQ pseudo-DMA

General informations

The Linux kernel configuration item CONFIG_SPI_S3C24XX_FIQ:

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Enable FIQ support for the S3C24XX SPI driver to provide pseudo DMA by using the fast-interrupt request framework, This allows the driver to get DMA-like performance when there are either no free DMA channels, or when doing transfers that required both TX and RX data paths.



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