Hauppauge produced a revision of ImpactVCBe using an 888,
with a 25MHz crystal, instead of using the default third
overtone 50Mhz crystal. This overrides that frequency so
that the cx25840 is properly configured.

Signed-off-by: Brad Love <b...@nextdimension.cc>
---
 drivers/media/pci/cx23885/cx23885-core.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/media/pci/cx23885/cx23885-core.c 
b/drivers/media/pci/cx23885/cx23885-core.c
index 2c76a02..101904b 100644
--- a/drivers/media/pci/cx23885/cx23885-core.c
+++ b/drivers/media/pci/cx23885/cx23885-core.c
@@ -881,6 +881,16 @@ static int cx23885_dev_setup(struct cx23885_dev *dev)
        if (cx23885_boards[dev->board].clk_freq > 0)
                dev->clk_freq = cx23885_boards[dev->board].clk_freq;
 
+       if (dev->board == CX23885_BOARD_HAUPPAUGE_IMPACTVCBE &&
+               dev->pci->subsystem_device == 0x7137) {
+               /* Hauppauge ImpactVCBe device ID 0x7137 is populated
+                * with an 888, and a 25Mhz crystal, instead of the
+                * usual third overtone 50Mhz. The default clock rate must
+                * be overridden so the cx25840 is properly configured
+                */
+               dev->clk_freq = 25000000;
+       }
+
        dev->pci_bus  = dev->pci->bus->number;
        dev->pci_slot = PCI_SLOT(dev->pci->devfn);
        cx23885_irq_add(dev, 0x001f00);
-- 
2.7.4

Reply via email to