V4L/DVB (13966): DVB-T regression fix for saa7134 cards
Some customers has problem with quality of DVB-T
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/446575
After this patch http://patchwork.kernel.org/patch/23345/
This is patch for fix regression with DVB-T. Tested with many people.
Signed-off-by: Alexey Osipov <lion-simba@pridelands.ru>
Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c
index 9f85e91..a7ad781 100644
--- a/drivers/media/video/saa7134/saa7134-core.c
+++ b/drivers/media/video/saa7134/saa7134-core.c
@@ -420,19 +420,6 @@
ctrl |= SAA7134_MAIN_CTRL_TE5;
irq |= SAA7134_IRQ1_INTE_RA2_1 |
SAA7134_IRQ1_INTE_RA2_0;
-
- /* dma: setup channel 5 (= TS) */
-
- saa_writeb(SAA7134_TS_DMA0, (dev->ts.nr_packets - 1) & 0xff);
- saa_writeb(SAA7134_TS_DMA1,
- ((dev->ts.nr_packets - 1) >> 8) & 0xff);
- /* TSNOPIT=0, TSCOLAP=0 */
- saa_writeb(SAA7134_TS_DMA2,
- (((dev->ts.nr_packets - 1) >> 16) & 0x3f) | 0x00);
- saa_writel(SAA7134_RS_PITCH(5), TS_PACKET_SIZE);
- saa_writel(SAA7134_RS_CONTROL(5), SAA7134_RS_CONTROL_BURST_16 |
- SAA7134_RS_CONTROL_ME |
- (dev->ts.pt_ts.dma >> 12));
}
/* set task conditions + field handling */
diff --git a/drivers/media/video/saa7134/saa7134-ts.c b/drivers/media/video/saa7134/saa7134-ts.c
index 03488ba..b9817d7 100644
--- a/drivers/media/video/saa7134/saa7134-ts.c
+++ b/drivers/media/video/saa7134/saa7134-ts.c
@@ -250,6 +250,19 @@
BUG_ON(dev->ts_started);
+ /* dma: setup channel 5 (= TS) */
+ saa_writeb(SAA7134_TS_DMA0, (dev->ts.nr_packets - 1) & 0xff);
+ saa_writeb(SAA7134_TS_DMA1,
+ ((dev->ts.nr_packets - 1) >> 8) & 0xff);
+ /* TSNOPIT=0, TSCOLAP=0 */
+ saa_writeb(SAA7134_TS_DMA2,
+ (((dev->ts.nr_packets - 1) >> 16) & 0x3f) | 0x00);
+ saa_writel(SAA7134_RS_PITCH(5), TS_PACKET_SIZE);
+ saa_writel(SAA7134_RS_CONTROL(5), SAA7134_RS_CONTROL_BURST_16 |
+ SAA7134_RS_CONTROL_ME |
+ (dev->ts.pt_ts.dma >> 12));
+
+ /* reset hardware TS buffers */
saa_writeb(SAA7134_TS_SERIAL1, 0x00);
saa_writeb(SAA7134_TS_SERIAL1, 0x03);
saa_writeb(SAA7134_TS_SERIAL1, 0x00);