Commit 9a2347ab authored by Brad Love's avatar Brad Love Committed by Greg Kroah-Hartman

media: cx23885: Override 888 ImpactVCBe crystal frequency

[ Upstream commit 779c79d4 ]

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. Without the proper
crystal setup the cx25840 cannot load the firmware or
decode video.
Signed-off-by: default avatarBrad Love <brad@nextdimension.cc>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: default avatarSasha Levin <alexander.levin@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 40a8962a
...@@ -872,6 +872,16 @@ static int cx23885_dev_setup(struct cx23885_dev *dev) ...@@ -872,6 +872,16 @@ static int cx23885_dev_setup(struct cx23885_dev *dev)
if (cx23885_boards[dev->board].clk_freq > 0) if (cx23885_boards[dev->board].clk_freq > 0)
dev->clk_freq = cx23885_boards[dev->board].clk_freq; 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_bus = dev->pci->bus->number;
dev->pci_slot = PCI_SLOT(dev->pci->devfn); dev->pci_slot = PCI_SLOT(dev->pci->devfn);
cx23885_irq_add(dev, 0x001f00); cx23885_irq_add(dev, 0x001f00);
......
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