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The old ISA MSND driver basically maps the iomem as the DMA buffer. For this type of buffer, we have already the standard mmap helper, snd_pcm_lib_mmap_iomem(). Correct the PCM info, set the DMA address and use the standard helper for handling the mmap on all architectures properly. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Takashi Iwai <[email protected]>
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