| Message ID | 2298118.7qjLAFjuvd@wasted.cogentembedded.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 10/08/2014 12:26 AM, Sergei Shtylyov wrote: > From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> > Enable HS-USB device for the Lager board, defining the GPIO that the driver > should check when probing. Since this board doesn't have the OTG ID pin, we > assume that GP5_18 (USB0_PWEN) is an ID pin because it is 1 when the SW5 is > in position 2-3 (meaning USB function) and 0 in other positions. > Note that there will be pinctrl-related error messages if both internal PCI > and HS-USB drivers are enabled but they should be just ignored. > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> > [Sergei: added pin function/group and prop, moved device node, fixed summary, > supplemented changelog] > Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> > --- > Changes in version 3: > - added pin function/group and the pinctrl-related prop; > - moved the HS-USB node to precede the USB PHY node; > - uppercased "arm" in the summary; > - supplemented changelog. > arch/arm/boot/dts/r8a7790-lager.dts | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > Index: renesas/arch/arm/boot/dts/r8a7790-lager.dts > =================================================================== > --- renesas.orig/arch/arm/boot/dts/r8a7790-lager.dts > +++ renesas/arch/arm/boot/dts/r8a7790-lager.dts > @@ -226,6 +226,11 @@ > renesas,function = "usb0"; > }; > > + hsusb_pins: usb0 { Oops, forgot to rename the node. :-/ Although dtc didn't protest. WBR, Sergei
Hello. (2014/10/08 5:26), Sergei Shtylyov wrote: > From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> > > Enable HS-USB device for the Lager board, defining the GPIO that the driver > should check when probing. Since this board doesn't have the OTG ID pin, we > assume that GP5_18 (USB0_PWEN) is an ID pin because it is 1 when the SW5 is > in position 2-3 (meaning USB function) and 0 in other positions. > < snip > > Index: renesas/arch/arm/boot/dts/r8a7790-lager.dts > =================================================================== > --- renesas.orig/arch/arm/boot/dts/r8a7790-lager.dts > +++ renesas/arch/arm/boot/dts/r8a7790-lager.dts > @@ -226,6 +226,11 @@ > renesas,function = "usb0"; > }; > > + hsusb_pins: usb0 { > + renesas,groups = "usb0_ovc_vbus"; Thank you for the v3 patch. I tested this, and kernel log said "GP_5_19 already requested". However, the hsusb on lager uses GP_5_18. Is this correct behavior? sh-pfc e6060000.pfc: pin GP_5_19 already requested by ee090000.pci; cannot claim for e6590000.usb sh-pfc e6060000.pfc: pin-179 (e6590000.usb) status -22 sh-pfc e6060000.pfc: could not request pin 179 (GP_5_19) from group usb0_ovc_vbus on device sh-pfc Best regards, Yoshihiro Shimoda
On 10/8/2014 8:51 AM, Yoshihiro Shimoda wrote: >> Enable HS-USB device for the Lager board, defining the GPIO that the driver >> should check when probing. Since this board doesn't have the OTG ID pin, we >> assume that GP5_18 (USB0_PWEN) is an ID pin because it is 1 when the SW5 is >> in position 2-3 (meaning USB function) and 0 in other positions. > < snip > >> Index: renesas/arch/arm/boot/dts/r8a7790-lager.dts >> =================================================================== >> --- renesas.orig/arch/arm/boot/dts/r8a7790-lager.dts >> +++ renesas/arch/arm/boot/dts/r8a7790-lager.dts >> @@ -226,6 +226,11 @@ >> renesas,function = "usb0"; >> }; >> >> + hsusb_pins: usb0 { >> + renesas,groups = "usb0_ovc_vbus"; > > Thank you for the v3 patch. > I tested this, and kernel log said "GP_5_19 already requested". GP5_19 is also USB0_OVC_VBUS. It's used by PCI [EO]HCI. > However, the hsusb on lager uses GP_5_18. Is this correct behavior? Yes, this error needs to be ignored (I wrote about that in the changelog but you cut out that part). If you disable the internal PCI driver, this error will disappear. > sh-pfc e6060000.pfc: pin GP_5_19 already requested by ee090000.pci; cannot claim for e6590000.usb > sh-pfc e6060000.pfc: pin-179 (e6590000.usb) status -22 > sh-pfc e6060000.pfc: could not request pin 179 (GP_5_19) from group usb0_ovc_vbus on device sh-pfc The kernel log already tells you well about the source of error. > Best regards, > Yoshihiro Shimoda WBR, Sergei
Index: renesas/arch/arm/boot/dts/r8a7790-lager.dts =================================================================== --- renesas.orig/arch/arm/boot/dts/r8a7790-lager.dts +++ renesas/arch/arm/boot/dts/r8a7790-lager.dts @@ -226,6 +226,11 @@ renesas,function = "usb0"; }; + hsusb_pins: usb0 { + renesas,groups = "usb0_ovc_vbus"; + renesas,function = "usb0"; + }; + usb1_pins: usb1 { renesas,groups = "usb1"; renesas,function = "usb1"; @@ -425,6 +430,13 @@ pinctrl-names = "default"; }; +&hsusb { + status = "okay"; + pinctrl-0 = <&hsusb_pins>; + pinctrl-names = "default"; + renesas,enable-gpio = <&gpio5 18 GPIO_ACTIVE_HIGH>; +}; + &usbphy { status = "okay"; };