V4L/DVB (8471): 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@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 9 insertions, 6 deletions

diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c
index 83067a49a7b7..3ae04d6e1362 100644
--- 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_channels[] = {
         [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_channels[] = {
         [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_channels[] = {
         [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,
@@ -1044,6 +1044,9 @@ static int cx23885_start_dma(struct cx23885_tsport *port,
         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 ],