V4L/DVB (13313): saa7134: add support for FORCE_TS_VALID mode for mpeg ts input

When FORCE_TS_VALID mode is enabled, the saa713x will accept MPEG TS input
without requiring TS_VALID set high.  This is required for some new boards
to function properly, due to the hardware design implementation.

The configuration is toggled within the board setup configuration.  Boards
that do not have this bit set will function as before with no change.

Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 5 insertions, 2 deletions

diff --git a/drivers/media/video/saa7134/saa7134-ts.c b/drivers/media/video/saa7134/saa7134-ts.c
index 3fa652279ac..03488ba4c99 100644
--- a/drivers/media/video/saa7134/saa7134-ts.c
+++ b/drivers/media/video/saa7134/saa7134-ts.c
@@ -262,11 +262,13 @@ int saa7134_ts_start(struct saa7134_dev *dev)
         switch (saa7134_boards[dev->board].ts_type) {
         case SAA7134_MPEG_TS_PARALLEL:
                 saa_writeb(SAA7134_TS_SERIAL0, 0x40);
-                saa_writeb(SAA7134_TS_PARALLEL, 0xec);
+                saa_writeb(SAA7134_TS_PARALLEL, 0xec |
+                        (saa7134_boards[dev->board].ts_force_val << 4));
                 break;
         case SAA7134_MPEG_TS_SERIAL:
                 saa_writeb(SAA7134_TS_SERIAL0, 0xd8);
-                saa_writeb(SAA7134_TS_PARALLEL, 0x6c);
+                saa_writeb(SAA7134_TS_PARALLEL, 0x6c |
+                        (saa7134_boards[dev->board].ts_force_val << 4));
                 saa_writeb(SAA7134_TS_PARALLEL_SERIAL, 0xbc);
                 saa_writeb(SAA7134_TS_SERIAL1, 0x02);
                 break;
diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h
index 6ee3e9b7769..f8697d46ff5 100644
--- a/drivers/media/video/saa7134/saa7134.h
+++ b/drivers/media/video/saa7134/saa7134.h
@@ -360,6 +360,7 @@ struct saa7134_board {
         enum saa7134_mpeg_type  mpeg;
         enum saa7134_mpeg_ts_type ts_type;
         unsigned int            vid_port_opts;
+        unsigned int            ts_force_val:1;
 };
 
 #define card_has_radio(dev)   (NULL != saa7134_boards[dev->board].radio.name)