audioreach-driver: use dev_set_dma_coherent() in q6apm probe#66
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Wrap dma_coherent handling behind AR_SET_DMA_COHERENT().
For kernel >= 7.2.0, use dev_set_dma_coherent(dev).
For older kernels, keep dev->dma_coherent = true.
This fixes build failures on newer kernels where struct
device no longer exposes dma_coherent as a direct field
("no member named dma_coherent"), while keeping older
kernel compatibility.
Signed-off-by: Aiyaz Patel <aiyapate@qti.qualcomm.com>
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This PR adds a small compatibility wrapper for DMA coherent handling in audioreach-driver by introducing AR_SET_DMA_COHERENT(dev) in ar_kcompat.h and using it in q6apm_audio_mem_probe(). For kernel >= 7.2.0, it calls dev_set_dma_coherent(dev); for older kernels, it keeps the legacy dev->dma_coherent = true behavior.
The goal is to fix newer-kernel build failures (struct device no longer has direct dma_coherent field access) while preserving compatibility and behavior on older kernels.