[PATCH v4 2/3] usb: dwc3: dwc3-st: Add st-dwc3 devicetree bindings documentation
From: Felipe Balbi <hidden>
Date: 2014-08-21 13:56:55
Also in:
linux-devicetree, linux-omap, lkml
On Thu, Aug 21, 2014 at 02:33:40PM +0100, Peter Griffin wrote:
Hi Felipe, Thanks for reviewing, see my comments below: - On Wed, 20 Aug 2014, Felipe Balbi wrote:quoted
quoted
+ dwc3: dwc3 at 9900000 { + compatible = "snps,dwc3"; + reg = <0x09900000 0x100000>; + interrupts = <GIC_SPI 155 IRQ_TYPE_NONE>; + dr_mode = "host" + usb-phy = <&usb3_phy>; + phy-names = "usb2-phy"; + phys = <&usb2_picophy2>;why are you using different binding for usb2 and usb3 phys ? Why can't you just: phys-names = "usb2-phy", "usb3-phy"; phys = <&usb2_picophy2>, <&usb3_phy>; ??Currently (in the vendor tree) one of the phys lives in drivers/usb/phy and the other in drivers/phy. I believe that is because one is only a usb phy and the other is a multi function phy which can drive PCI-E or USB3.
right, but for mainline, we can have both PHYs in drivers/phy only.
So to make that work, when dwc3/core.c gets the PHYS in dwc3_core_get_phy() we need to use the different bindings. I think we are the only platform using "one of each", but luckily dwc3_core_get_phy() has been written generically enough that it "just works" :-).
true, but I want to drop support for the legacy drivers/usb/phy layer from dwc3. I'll try to move all PHYs to drivers/phy for v3.18. cheers -- balbi -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: Digital signature URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20140821/300d80b2/attachment.sig>