V4L/DVB (8469): cx23885: FusionHDTV7 Dual Express toggle reset.

Ensure the tuners and demods are brought in and out of reset during
driver startup.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c
index f325c123295c..691b35279c20 100644
--- a/drivers/media/video/cx23885/cx23885-cards.c
+++ b/drivers/media/video/cx23885/cx23885-cards.c
@@ -436,6 +436,19 @@ void cx23885_gpio_setup(struct cx23885_dev *dev)
                 mdelay(20);
                 cx_set(GP0_IO, 0x00050005);
                 break;
+        case CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP:
+                /* GPIO-0 xc5000 tuner reset i2c bus 0 */
+                /* GPIO-1 s5h1409 demod reset i2c bus 0 */
+                /* GPIO-2 xc5000 tuner reset i2c bus 1 */
+                /* GPIO-3 s5h1409 demod reset i2c bus 0 */
+
+                /* Put the parts into reset and back */
+                cx_set(GP0_IO, 0x000f0000);
+                mdelay(20);
+                cx_clear(GP0_IO, 0x0000000f);
+                mdelay(20);
+                cx_set(GP0_IO, 0x000f000f);
+                break;
         }
 }