diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 670734b3d56a..04ca80770e35 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1476,11 +1476,13 @@ MODULE_DEVICE_TABLE(of, pxa2xx_spi_of_match);
 
 #ifdef CONFIG_ACPI
 
-static int pxa2xx_spi_get_port_id(struct acpi_device *adev)
+static int pxa2xx_spi_get_port_id(struct device *dev)
 {
+	struct acpi_device *adev;
 	unsigned int devid;
 	int port_id = -1;
 
+	adev = ACPI_COMPANION(dev);
 	if (adev && adev->pnp.unique_id &&
 	    !kstrtouint(adev->pnp.unique_id, 0, &devid))
 		port_id = devid;
@@ -1489,7 +1491,7 @@ static int pxa2xx_spi_get_port_id(struct acpi_device *adev)
 
 #else /* !CONFIG_ACPI */
 
-static int pxa2xx_spi_get_port_id(struct acpi_device *adev)
+static int pxa2xx_spi_get_port_id(struct device *dev)
 {
 	return -1;
 }
@@ -1568,7 +1570,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 	ssp->irq = platform_get_irq(pdev, 0);
 	ssp->type = type;
 	ssp->dev = &pdev->dev;
-	ssp->port_id = pxa2xx_spi_get_port_id(adev);
+	ssp->port_id = pxa2xx_spi_get_port_id(&pdev->dev);
 
 	pdata->is_slave = of_property_read_bool(pdev->dev.of_node, "spi-slave");
 	pdata->num_chipselect = 1;