| Message ID | 1463141873-10604-2-git-send-email-rogerq@ti.com |
|---|---|
| State | New |
| Headers | show |
On 13/05/16 15:23, Marek Vasut wrote: > On 05/13/2016 02:17 PM, Roger Quadros wrote: >> DWC3 can be used in host only or gadget only mode. >> >> Signed-off-by: Roger Quadros <rogerq@ti.com> >> --- >> drivers/usb/dwc3/Kconfig | 9 +++++---- >> 1 file changed, 5 insertions(+), 4 deletions(-) >> >> diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig >> index e93398f..caf695b 100644 >> --- a/drivers/usb/dwc3/Kconfig >> +++ b/drivers/usb/dwc3/Kconfig >> @@ -1,15 +1,16 @@ >> config USB_DWC3 >> bool "DesignWare USB3 DRD Core Support" >> - depends on (USB && USB_GADGET) >> - select USB_GADGET_DUALSPEED >> + depends on (USB || USB_GADGET) >> + select USB_GADGET_DUALSPEED if USB_GADGET >> help >> - Say Y here if your system has a Dual Role SuperSpeed >> - USB controller based on the DesignWare USB3 IP Core. >> + Say Y here if your system has DesignWare USB3 IP Core. >> >> if USB_DWC3 >> >> choice >> bool "DWC3 Mode Selection" >> + default USB_DWC3_HOST if (USB && !USB_GADGET) >> + default USB_DWC3_GADGET if (!USB && USB_GADGET) > > What happens if I select both USB and USB_GADGET ? Ideally we want to have dual role operation but that code seems to have been stripped off from the dwc3/core.c. So till dual-role is added back it will work in HOST mode by default but user can still choose GADGET mode. > >> config USB_DWC3_HOST >> bool "Host only mode" >> > > cheers, -roger _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Hi. 2016-05-13 21:17 GMT+09:00 Roger Quadros <rogerq@ti.com>: > DWC3 can be used in host only or gadget only mode. > > Signed-off-by: Roger Quadros <rogerq@ti.com> > --- > drivers/usb/dwc3/Kconfig | 9 +++++---- > 1 file changed, 5 insertions(+), 4 deletions(-) > > diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig > index e93398f..caf695b 100644 > --- a/drivers/usb/dwc3/Kconfig > +++ b/drivers/usb/dwc3/Kconfig > @@ -1,15 +1,16 @@ > config USB_DWC3 > bool "DesignWare USB3 DRD Core Support" > - depends on (USB && USB_GADGET) > - select USB_GADGET_DUALSPEED > + depends on (USB || USB_GADGET) > + select USB_GADGET_DUALSPEED if USB_GADGET > help > - Say Y here if your system has a Dual Role SuperSpeed > - USB controller based on the DesignWare USB3 IP Core. > + Say Y here if your system has DesignWare USB3 IP Core. > > if USB_DWC3 > > choice > bool "DWC3 Mode Selection" > + default USB_DWC3_HOST if (USB && !USB_GADGET) > + default USB_DWC3_GADGET if (!USB && USB_GADGET) > > config USB_DWC3_HOST > bool "Host only mode" > -- > 2.7.4 > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot Please note the following commit changed the meaning of CONFIG_USB. commit 68f7c5db2d1e714c15b49b0759ddef8f8344f184 Author: Paul Kocialkowski <contact@paulk.fr> AuthorDate: Tue Aug 4 17:04:05 2015 +0200 Commit: Marek Vasut <marex@denx.de> CommitDate: Wed Aug 5 17:20:34 2015 +0200 usb: Generic USB Kconfig option, that fits both host and gadget and comments There is no particular reason why the USB Kconfig option should be specific host mode. In prevision of adding MUSB host and gadget to Kconfig, this move the title and help message of the USB Kconfig option to a more generic forma Adding comments to the usb Kconfig allows for a better separation and more readability in generated configs and in menuconfig. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> In Linux, CONFIG_USB enables the host mode of USB. So, "depends on (USB || USB_GADGET)" makes sense. In U-Boot, since the commit above, CONFIG_USB enables the whole of USB frame-work, including host, gadget. USB_DWC3 already resides inside of if USB ... endif so, depends on (USB || USB_GADGET) does not make sense. -- Best Regards Masahiro Yamada _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
2016-05-13 21:23 GMT+09:00 Marek Vasut <marex@denx.de>: > On 05/13/2016 02:17 PM, Roger Quadros wrote: >> DWC3 can be used in host only or gadget only mode. >> >> Signed-off-by: Roger Quadros <rogerq@ti.com> >> --- >> drivers/usb/dwc3/Kconfig | 9 +++++---- >> 1 file changed, 5 insertions(+), 4 deletions(-) >> >> diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig >> index e93398f..caf695b 100644 >> --- a/drivers/usb/dwc3/Kconfig >> +++ b/drivers/usb/dwc3/Kconfig >> @@ -1,15 +1,16 @@ >> config USB_DWC3 >> bool "DesignWare USB3 DRD Core Support" >> - depends on (USB && USB_GADGET) >> - select USB_GADGET_DUALSPEED >> + depends on (USB || USB_GADGET) >> + select USB_GADGET_DUALSPEED if USB_GADGET >> help >> - Say Y here if your system has a Dual Role SuperSpeed >> - USB controller based on the DesignWare USB3 IP Core. >> + Say Y here if your system has DesignWare USB3 IP Core. >> >> if USB_DWC3 >> >> choice >> bool "DWC3 Mode Selection" >> + default USB_DWC3_HOST if (USB && !USB_GADGET) >> + default USB_DWC3_GADGET if (!USB && USB_GADGET) > > What happens if I select both USB and USB_GADGET ? > Unlike Linux, CONFIG_USB_GADGET depends on CONFIG_USB in U-Boot. So, (!USB && USB_GADGET) never happens. -- Best Regards Masahiro Yamada _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
On 17/05/16 13:33, Masahiro Yamada wrote: > Hi. > > > 2016-05-13 21:17 GMT+09:00 Roger Quadros <rogerq@ti.com>: >> DWC3 can be used in host only or gadget only mode. >> >> Signed-off-by: Roger Quadros <rogerq@ti.com> >> --- >> drivers/usb/dwc3/Kconfig | 9 +++++---- >> 1 file changed, 5 insertions(+), 4 deletions(-) >> >> diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig >> index e93398f..caf695b 100644 >> --- a/drivers/usb/dwc3/Kconfig >> +++ b/drivers/usb/dwc3/Kconfig >> @@ -1,15 +1,16 @@ >> config USB_DWC3 >> bool "DesignWare USB3 DRD Core Support" >> - depends on (USB && USB_GADGET) >> - select USB_GADGET_DUALSPEED >> + depends on (USB || USB_GADGET) >> + select USB_GADGET_DUALSPEED if USB_GADGET >> help >> - Say Y here if your system has a Dual Role SuperSpeed >> - USB controller based on the DesignWare USB3 IP Core. >> + Say Y here if your system has DesignWare USB3 IP Core. >> >> if USB_DWC3 >> >> choice >> bool "DWC3 Mode Selection" >> + default USB_DWC3_HOST if (USB && !USB_GADGET) >> + default USB_DWC3_GADGET if (!USB && USB_GADGET) >> >> config USB_DWC3_HOST >> bool "Host only mode" >> -- >> 2.7.4 >> >> _______________________________________________ >> U-Boot mailing list >> U-Boot@lists.denx.de >> http://lists.denx.de/mailman/listinfo/u-boot > > > Please note the following commit changed > the meaning of CONFIG_USB. > > > commit 68f7c5db2d1e714c15b49b0759ddef8f8344f184 > Author: Paul Kocialkowski <contact@paulk.fr> > AuthorDate: Tue Aug 4 17:04:05 2015 +0200 > Commit: Marek Vasut <marex@denx.de> > CommitDate: Wed Aug 5 17:20:34 2015 +0200 > > usb: Generic USB Kconfig option, that fits both host and gadget and comments > > There is no particular reason why the USB Kconfig option should be specific > host mode. In prevision of adding MUSB host and gadget to Kconfig, this move > the title and help message of the USB Kconfig option to a more generic forma > > Adding comments to the usb Kconfig allows for a better separation and more > readability in generated configs and in menuconfig. > > Signed-off-by: Paul Kocialkowski <contact@paulk.fr> > > > > In Linux, CONFIG_USB enables the host mode of USB. > So, "depends on (USB || USB_GADGET)" makes sense. > > > In U-Boot, since the commit above, CONFIG_USB enables > the whole of USB frame-work, including host, gadget. > > USB_DWC3 already resides inside of if USB ... endif > so, depends on (USB || USB_GADGET) does not make sense. > > > OK, thanks for pointing this out. But USB doesn't mean Host is active and USB_GADGET means gadget framework is available. So I think we have incomplete information for deciding about Host role based on just Kconfig. cheers, -roger _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index e93398f..caf695b 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -1,15 +1,16 @@ config USB_DWC3 bool "DesignWare USB3 DRD Core Support" - depends on (USB && USB_GADGET) - select USB_GADGET_DUALSPEED + depends on (USB || USB_GADGET) + select USB_GADGET_DUALSPEED if USB_GADGET help - Say Y here if your system has a Dual Role SuperSpeed - USB controller based on the DesignWare USB3 IP Core. + Say Y here if your system has DesignWare USB3 IP Core. if USB_DWC3 choice bool "DWC3 Mode Selection" + default USB_DWC3_HOST if (USB && !USB_GADGET) + default USB_DWC3_GADGET if (!USB && USB_GADGET) config USB_DWC3_HOST bool "Host only mode"
DWC3 can be used in host only or gadget only mode. Signed-off-by: Roger Quadros <rogerq@ti.com> --- drivers/usb/dwc3/Kconfig | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) -- 2.7.4 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot