spi: cadence-qspi: add an info message for DAC enabled

Signed-off-by: Heinrich Toews <ht@twx-software.de>

drivers/spi/spi-cadence-quadspi.c

@@ -290,6 +290,15 @@ struct cqspi_driver_platdata {
 
 #define CQSPI_REG_VERSAL_DMA_VAL		0x602
 
+bool cqspi_dac_enabled(struct cqspi_st *cqspi)
+{
+       u32 reg;
+
+       reg = readl(cqspi->iobase + CQSPI_REG_CONFIG);
+
+       return (reg & CQSPI_REG_CONFIG_ENB_DIR_ACC_CTRL) ? true : false;
+}
+
 static int cqspi_wait_for_bit(void __iomem *reg, const u32 mask, bool clr)
 {
 	u32 val;
@@ -1877,6 +1886,9 @@ static int cqspi_probe(struct platform_device *pdev)
 		goto probe_setup_failed;
 	}
 
+       dev_info(dev, "Direct Access Controller (DAC) is %s.\n",
+               cqspi_dac_enabled(cqspi) ? "enabled" : "disabled");
+
 	return 0;
 probe_setup_failed:
 	cqspi_controller_enable(cqspi, 0);