spi: pxa2xx: Use new spi_xfer_is_dma_mapped() helper

Replace a few lines of code by calling a spi_xfer_is_dma_mapped() 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/20240531194723.1761567-6-andriy.shevchenko@linux.intel.comReviewed-by: Serge Semin <fancer.lancer@gmail.com>
Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-pxa2xx.c

@@ -26,6 +26,7 @@
 
 #include <linux/spi/spi.h>
 
+#include "internals.h"
 #include "spi-pxa2xx.h"
 
 #define TIMOUT_DFLT		1000
@@ -993,11 +994,8 @@ static int pxa2xx_spi_transfer_one(struct spi_controller *controller,
 	}
 
 	dma_thresh = SSCR1_RxTresh(RX_THRESH_DFLT) | SSCR1_TxTresh(TX_THRESH_DFLT);
-	dma_mapped = controller->can_dma &&
-		     controller->can_dma(controller, spi, transfer) &&
-		     controller->cur_msg_mapped;
+	dma_mapped = spi_xfer_is_dma_mapped(controller, spi, transfer);
 	if (dma_mapped) {
-
 		/* Ensure we have the correct interrupt handler */
 		drv_data->transfer_handler = pxa2xx_spi_dma_transfer;