V4L/DVB (3371): Turn frame locked sound on, basic support for FM radio with TDA8275(a)

- Enabled audio PLL. This is mandatory for NICAM sound
- modify FM IF frequency to 5.5MHz for SAA7133/35 if tuner is tda8290
Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/saa7134/saa7134-cards.c

@@ -2515,6 +2515,7 @@ struct saa7134_board saa7134_boards[] = {
 		.tuner_addr	= ADDR_UNSET,
 		.radio_addr	= ADDR_UNSET,
 		.mpeg           = SAA7134_MPEG_DVB,
+		.gpiomask       = 1 << 21,
 		.inputs = {{
 			.name   = name_tv,
 			.vmux   = 1,
@@ -2529,6 +2530,11 @@ struct saa7134_board saa7134_boards[] = {
 			.vmux   = 8,
 			.amux   = LINE1,
 		}},
+		.radio = {
+			.name   = name_radio,
+			.amux   = TV,
+			.gpio   = 0x0200000,
+		},
 	},
 	[SAA7134_BOARD_MSI_TVATANYWHERE_PLUS] = {
 		.name           = "MSI TV@Anywhere plus",

drivers/media/video/saa7134/saa7134-tvaudio.c

@@ -180,8 +180,8 @@ static void tvaudio_init(struct saa7134_dev *dev)
 	saa_writeb(SAA7134_AUDIO_CLOCK0,      clock        & 0xff);
 	saa_writeb(SAA7134_AUDIO_CLOCK1,     (clock >>  8) & 0xff);
 	saa_writeb(SAA7134_AUDIO_CLOCK2,     (clock >> 16) & 0xff);
-	// frame locked audio was reported not to be reliable
-	saa_writeb(SAA7134_AUDIO_PLL_CTRL,   0x02);
+	/* frame locked audio is mandatory for NICAM */
+	saa_writeb(SAA7134_AUDIO_PLL_CTRL,   0x01);
 
 	saa_writeb(SAA7134_NICAM_ERROR_LOW,  0x14);
 	saa_writeb(SAA7134_NICAM_ERROR_HIGH, 0x50);
@@ -809,7 +809,12 @@ static int tvaudio_thread_ddep(void *data)
 			dprintk("ddep override: %s\n",stdres[audio_ddep]);
 		} else if (&card(dev).radio == dev->input) {
 			dprintk("FM Radio\n");
-			norms = (0x0f << 2) | 0x01;
+			if (dev->tuner_type == TUNER_PHILIPS_TDA8290) {
+				norms = (0x11 << 2) | 0x01;
+				saa_dsp_writel(dev, 0x42c >> 2, 0x729555);
+			} else {
+				norms = (0x0f << 2) | 0x01;
+			}
 		} else {
 			/* (let chip) scan for sound carrier */
 			norms = 0;