V4L/DVB (6192): Ensure start_dma() is capable of starting dma on port VIDB

start_dma() would fail to start dma if a device used VIDB (portb).
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/cx23885/cx23885-core.c

@@ -1015,9 +1015,12 @@ static int cx23885_start_dma(struct cx23885_tsport *port,
 	/* write TS length to chip */
 	cx_write(port->reg_lngth, buf->vb.width);
 
-	if (!(cx23885_boards[dev->board].portc & CX23885_MPEG_DVB)) {
-		printk( "%s() Failed. Unsupported value in .portc (0x%08x)\n",
-			__FUNCTION__, cx23885_boards[dev->board].portc );
+	if ( (!(cx23885_boards[dev->board].portb & CX23885_MPEG_DVB)) &&
+		(!(cx23885_boards[dev->board].portc & CX23885_MPEG_DVB)) ) {
+		printk( "%s() Failed. Unsupported value in .portb/c (0x%08x)/(0x%08x)\n",
+			__FUNCTION__,
+			cx23885_boards[dev->board].portb,
+			cx23885_boards[dev->board].portc );
 		return -EINVAL;
 	}
 

drivers/media/video/cx23885/cx23885.h

@@ -86,12 +86,14 @@ struct cx23885_input {
 	u32             gpio0, gpio1, gpio2, gpio3;
 };
 
+typedef enum {
+	CX23885_MPEG_UNDEFINED = 0,
+	CX23885_MPEG_DVB
+} port_t;
+
 struct cx23885_board {
 	char                    *name;
-	enum {
-		CX23885_MPEG_UNDEFINED = 0,
-		CX23885_MPEG_DVB
-	} portc;
+	port_t			portb, portc;
 	struct cx23885_input    input[MAX_CX23885_INPUT];
 };