Oliver Endriss wrote:
> Hi,
>
> Thanks to Hartmut, I2C transfers of the saa7146 may now use interrupt
> mode. It will be enabled for av7110, budget, budget-ci and budget-av
> drivers. This might reduce cpu load and speed-up tuning.
>
The Cinergy 1200 DVB-C card needs a second patch. The frontend is
accessed to fast after power-on/enable. The non interrupt mode starts a
retry after an address error. This gives the frontend the time for
power-on. The interrupt mode trusts the error logic of the SAA7146 and
doesn't use retries.
- Hartmut
Signed-off-by: Hartmut Birr <e9hack@xxxxxxxxxxxxxx>
- Added a delay to give the frontend a little bit time for power-on.
diff -r 55496629964b linux/drivers/media/dvb/ttpci/budget-av.c
--- a/linux/drivers/media/dvb/ttpci/budget-av.c Wed Nov 01 17:09:51 2006 +0100
+++ b/linux/drivers/media/dvb/ttpci/budget-av.c Fri Nov 03 17:55:16 2006 +0100
@@ -946,6 +946,9 @@ static void frontend_init(struct budget_
/* Enable / PowerON Frontend */
saa7146_setgpio(saa, 0, SAA7146_GPIO_OUTLO);
+
+ /* Wait for PowerON */
+ msleep(10);
/* additional setup necessary for the PLUS cards */
switch (saa->pci->subsystem_device) {
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