media: fsl-viu: allow building it with COMPILE_TEST

There aren't many things that would be needed to allow it
to build with compile test.

Add the needed bits.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/Kconfig

@@ -42,7 +42,7 @@ config VIDEO_SH_VOU
 
 config VIDEO_VIU
 	tristate "Freescale VIU Video Driver"
-	depends on VIDEO_V4L2 && PPC_MPC512x
+	depends on VIDEO_V4L2 && (PPC_MPC512x || COMPILE_TEST)
 	select VIDEOBUF_DMA_CONTIG
 	default y
 	---help---

drivers/media/platform/fsl-viu.c

@@ -36,6 +36,12 @@
 #define DRV_NAME		"fsl_viu"
 #define VIU_VERSION		"0.5.1"
 
+/* Allow building this driver with COMPILE_TEST */
+#ifndef CONFIG_PPC
+#define out_be32(v, a)	iowrite32be(a, (void __iomem *)v)
+#define in_be32(a)	ioread32be((void __iomem *)a)
+#endif
+
 #define BUFFER_TIMEOUT		msecs_to_jiffies(500)  /* 0.5 seconds */
 
 #define	VIU_VID_MEM_LIMIT	4	/* Video memory limit, in Mb */
@@ -1407,7 +1413,7 @@ static int viu_of_probe(struct platform_device *op)
 	}
 
 	viu_irq = irq_of_parse_and_map(op->dev.of_node, 0);
-	if (viu_irq == NO_IRQ) {
+	if (!viu_irq) {
 		dev_err(&op->dev, "Error while mapping the irq\n");
 		return -EINVAL;
 	}