Unverified Commit 0535cf64 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Mark Brown
Browse files

spi: Introduce internal spi_xfer_is_dma_mapped() helper 



There are few drivers that use the same pattern to check if the transfer
is DMA mapped or not. Provide a helper.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD
Link: https://lore.kernel.org/r/20240531194723.1761567-2-andriy.shevchenko@linux.intel.com


Reviewed-by: default avatarBryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: default avatarSerge Semin <fancer.lancer@gmail.com>
Tested-by: default avatarNícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent d4ea1d50

drivers/spi/internals.h

+8 −0
Original line number Diff line number Diff line
@@ -40,4 +40,12 @@ static inline void spi_unmap_buf(struct spi_controller *ctlr, 
}

#endif /* CONFIG_HAS_DMA */



static inline bool spi_xfer_is_dma_mapped(struct spi_controller *ctlr,

					  struct spi_device *spi,

					  struct spi_transfer *xfer)

{

	return ctlr->can_dma && ctlr->can_dma(ctlr, spi, xfer) &&

	       ctlr->cur_msg_mapped;

}



#endif /* __LINUX_SPI_INTERNALS_H */