Re: [linux-sunxi] sunxi: Endless musb_bus_suspend warnings when booting A23 tablet with OTG
On Wed, Sep 7, 2016 at 6:44 PM, Hans de Goedewrote: > Hi, > > On 06-09-16 17:31, wens Tsai wrote: >> >> On Tue, Sep 6, 2016 at 7:28 PM, Hans de Goede wrote: >>> >>> Hi, >>> >>> On 06-09-16 13:02, wens Tsai wrote: Hi Hans, I've built the latest sunxi-next branches of Linux and U-boot and tried it on my Q8 A23 tablet. My tablet has an OTG adapter with a USB ethernet adapter connected all the time. Upon booting into Linux I get an endless stream of: musb_bus_suspend 2586: trying to suspend as a_wait_bcon while active messages. To get out of this I have to physically remove the OTG adapter. Booting without the OTG adapter to begin with also gets rid of the problem. Have you run into this problem? I wonder if we should disable VBUS just before leaving U-boot? Now that we support DRIVEVBUS this shouldn't be a problem. >>> >>> >>> >>> I've not seen such a problem. I'm fine with disabling Vbus when >>> leaving u-boot, that certainly is the safe thing to do anyways. >> >> >> Seems there's no distinction between "USB reset" and leaving >> U-boot, as you mentioned in your patch removing the "power off" >> code from the USB drivers. Are you OK with power cycling during >> USB reset as well? > > > I would prefer not too, but if it is hard to get around that > I can live with it. Unfortunately musb USB reset does not work. I tested without my patch (the one I sent out today). So I think this point is irrelevant, at least until someone fixes musb. ChenYu >> >>> I guess I'll get a u-boot patch from you if that indeed fixes >>> things ? >> >> >> Yup. In progress. Though my ethernet adapter is acting up, so I'll >> need to swap in something else to test it properly. > > > Cool. > > Thanks & Regards, > > Hans -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [linux-sunxi] sunxi: Endless musb_bus_suspend warnings when booting A23 tablet with OTG
Hi, On 06-09-16 17:31, wens Tsai wrote: On Tue, Sep 6, 2016 at 7:28 PM, Hans de Goedewrote: Hi, On 06-09-16 13:02, wens Tsai wrote: Hi Hans, I've built the latest sunxi-next branches of Linux and U-boot and tried it on my Q8 A23 tablet. My tablet has an OTG adapter with a USB ethernet adapter connected all the time. Upon booting into Linux I get an endless stream of: musb_bus_suspend 2586: trying to suspend as a_wait_bcon while active messages. To get out of this I have to physically remove the OTG adapter. Booting without the OTG adapter to begin with also gets rid of the problem. Have you run into this problem? I wonder if we should disable VBUS just before leaving U-boot? Now that we support DRIVEVBUS this shouldn't be a problem. I've not seen such a problem. I'm fine with disabling Vbus when leaving u-boot, that certainly is the safe thing to do anyways. Seems there's no distinction between "USB reset" and leaving U-boot, as you mentioned in your patch removing the "power off" code from the USB drivers. Are you OK with power cycling during USB reset as well? I would prefer not too, but if it is hard to get around that I can live with it. I guess I'll get a u-boot patch from you if that indeed fixes things ? Yup. In progress. Though my ethernet adapter is acting up, so I'll need to swap in something else to test it properly. Cool. Thanks & Regards, Hans -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [linux-sunxi] sunxi: Endless musb_bus_suspend warnings when booting A23 tablet with OTG
On Tue, Sep 6, 2016 at 7:28 PM, Hans de Goedewrote: > Hi, > > On 06-09-16 13:02, wens Tsai wrote: >> >> Hi Hans, >> >> I've built the latest sunxi-next branches of Linux and U-boot and >> tried it on my Q8 A23 tablet. My tablet has an OTG adapter with a >> USB ethernet adapter connected all the time. Upon booting into >> Linux I get an endless stream of: >> >> musb_bus_suspend 2586: trying to suspend as a_wait_bcon while active >> >> messages. To get out of this I have to physically remove the OTG >> adapter. Booting without the OTG adapter to begin with also gets >> rid of the problem. >> >> Have you run into this problem? I wonder if we should disable VBUS >> just before leaving U-boot? Now that we support DRIVEVBUS this >> shouldn't be a problem. > > > I've not seen such a problem. I'm fine with disabling Vbus when > leaving u-boot, that certainly is the safe thing to do anyways. Seems there's no distinction between "USB reset" and leaving U-boot, as you mentioned in your patch removing the "power off" code from the USB drivers. Are you OK with power cycling during USB reset as well? > I guess I'll get a u-boot patch from you if that indeed fixes > things ? Yup. In progress. Though my ethernet adapter is acting up, so I'll need to swap in something else to test it properly. ChenYu -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [linux-sunxi] sunxi: Endless musb_bus_suspend warnings when booting A23 tablet with OTG
Hi, On 06-09-16 13:02, wens Tsai wrote: Hi Hans, I've built the latest sunxi-next branches of Linux and U-boot and tried it on my Q8 A23 tablet. My tablet has an OTG adapter with a USB ethernet adapter connected all the time. Upon booting into Linux I get an endless stream of: musb_bus_suspend 2586: trying to suspend as a_wait_bcon while active messages. To get out of this I have to physically remove the OTG adapter. Booting without the OTG adapter to begin with also gets rid of the problem. Have you run into this problem? I wonder if we should disable VBUS just before leaving U-boot? Now that we support DRIVEVBUS this shouldn't be a problem. I've not seen such a problem. I'm fine with disabling Vbus when leaving u-boot, that certainly is the safe thing to do anyways. I guess I'll get a u-boot patch from you if that indeed fixes things ? Regards, Hans -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[linux-sunxi] sunxi: Endless musb_bus_suspend warnings when booting A23 tablet with OTG
Hi Hans, I've built the latest sunxi-next branches of Linux and U-boot and tried it on my Q8 A23 tablet. My tablet has an OTG adapter with a USB ethernet adapter connected all the time. Upon booting into Linux I get an endless stream of: musb_bus_suspend 2586: trying to suspend as a_wait_bcon while active messages. To get out of this I have to physically remove the OTG adapter. Booting without the OTG adapter to begin with also gets rid of the problem. Have you run into this problem? I wonder if we should disable VBUS just before leaving U-boot? Now that we support DRIVEVBUS this shouldn't be a problem. Regards ChenYu -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.