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: Andy 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: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Tested-by: NĂcolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
}
#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 */