[patch 49/62] DVB: cx23885: Reallocated the sram to avoidconcurrent VIDB/C issues

[Greg KH]

2.6.26 -stable review patch.  If anyone has any objections, please let
us know.

------------------
From: Steven Toth <stoth@xxxxxxxxxxxxx>

(cherry picked from commit d8d12b4367e2e759f65c5f9dcb94d21ec237bbc5)

DVB: cx23885: Reallocated the sram to avoid concurrent VIDB/C issues

This may be cx23885 chip specific and may not work on the cx23887.
Analog and mpeg encoder streaming are still to be tested.

Signed-off-by: Steven Toth <stoth@xxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>
Signed-off-by: Michael Krufky <mkrufky@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 drivers/media/video/cx23885/cx23885-core.c |   15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

--- a/drivers/media/video/cx23885/cx23885-core.c
+++ b/drivers/media/video/cx23885/cx23885-core.c
@@ -80,8 +80,8 @@ static struct sram_channel cx23887_sram_
 	[SRAM_CH01] = {
 		.name		= "VID A",
 		.cmds_start	= 0x10000,
-		.ctrl_start	= 0x105b0,
-		.cdt		= 0x107b0,
+		.ctrl_start	= 0x10380,
+		.cdt		= 0x104c0,
 		.fifo_start	= 0x40,
 		.fifo_size	= 0x2800,
 		.ptr1_reg	= DMA1_PTR1,
@@ -104,8 +104,8 @@ static struct sram_channel cx23887_sram_
 	[SRAM_CH03] = {
 		.name		= "TS1 B",
 		.cmds_start	= 0x100A0,
-		.ctrl_start	= 0x10670,
-		.cdt		= 0x10810,
+		.ctrl_start	= 0x10400,
+		.cdt		= 0x10580,
 		.fifo_start	= 0x5000,
 		.fifo_size	= 0x1000,
 		.ptr1_reg	= DMA3_PTR1,
@@ -140,8 +140,8 @@ static struct sram_channel cx23887_sram_
 	[SRAM_CH06] = {
 		.name		= "TS2 C",
 		.cmds_start	= 0x10140,
-		.ctrl_start	= 0x10680,
-		.cdt		= 0x108d0,
+		.ctrl_start	= 0x10440,
+		.cdt		= 0x105e0,
 		.fifo_start	= 0x6000,
 		.fifo_size	= 0x1000,
 		.ptr1_reg	= DMA5_PTR1,
@@ -1043,6 +1043,9 @@ static int cx23885_start_dma(struct cx23
 	dprintk(1, "%s() w: %d, h: %d, f: %d\n", __func__,
 		buf->vb.width, buf->vb.height, buf->vb.field);
 
+	/* Stop the fifo and risc engine for this port */
+	cx_clear(port->reg_dma_ctl, port->dma_ctl_val);
+
 	/* setup fifo + format */
 	cx23885_sram_channel_setup(dev,
 				   &dev->sram_channels[ port->sram_chno ],

-- 
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