Hi Devin, 2014-02-07 22:46 GMT+09:00 Devin Heitmueller <dheitmueller@xxxxxxxxxxxxxx>: > > > I can't load firmware like error of below link. > > > > https://bugs.launchpad.net/ubuntu/+source/linux-firmware-nonfree/+bug/1263837 > > > > This error is related with this patch. This fix is right but above error is > > created after this fix > > because my device makes WatchDogTimer to 0 when load firmware. > > Maybe it will be related with XREG_BUSY register but i can't check it. > > > > I removed this fix, but i have faced at other error with "xc5000: PLL not > > running after fwload" > > So i have commented like below. > > > > static const struct xc5000_fw_cfg xc5000a_1_6_114 = { > > .name = XC5000A_FIRMWARE, > > .size = 12401, > > //.pll_reg = 0x806c, > > }; > > > > Then, xc5000 device works well. > > > > I don't have xc5000 datasheet so i can't debug xc5000 driver anymore. > > Hi Joonyoung, > > Assuming this is the DViCO FusionHDTV7 device that uses the > au0828/au8522, I suspect that what's happening here is your I2C > controller is not stable. The I2C clock stretching done by the xc5000 > often exposed bugs in various bridge drivers and the au0828 was no > exception. I had to work around these hardware bugs in the au0828 > driver but I made them specific to the HVR-950q since that was the > only device I could test with. > > In other words, the xc5000 is most likely doing exactly what it is > supposed to, and the increased robustness of the tuner driver with > those two patches exposed intermittent I2C failures in au0828 that > were previously being silently discarded (resulting in indeterminate > behavior). > > I would recommending looking at the changes in au0828-cards.c for the > HVR-950q and add the code necessary to make them also apply for the > DVICO device, and that should resolve your problems (in particular the > i2c_clk_divider field should be set). > As you said, i modified like below patch and it is working well. Thanks for your advice. diff --git a/drivers/media/usb/au0828/au0828-cards.c b/drivers/media/usb/au0828/au0828-cards.c index 0cb7c28..9936875 100644 --- a/drivers/media/usb/au0828/au0828-cards.c +++ b/drivers/media/usb/au0828/au0828-cards.c @@ -108,7 +108,7 @@ struct au0828_board au0828_boards[] = { .name = "DViCO FusionHDTV USB", .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, - .i2c_clk_divider = AU0828_I2C_CLK_250KHZ, + .i2c_clk_divider = AU0828_I2C_CLK_20KHZ, }, [AU0828_BOARD_HAUPPAUGE_WOODBURY] = { .name = "Hauppauge Woodbury", - Joonyoung Shim -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
