> -----Original Message-----
> From: Felipe Balbi <balbif@xxxxxxxxx> On Behalf Of Felipe Balbi
> Sent: Thursday, July 23, 2020 5:22 PM
> To: Jun Li <jun.li@xxxxxxx>; shawnguo@xxxxxxxxxx; robh+dt@xxxxxxxxxx
> Cc: gregkh@xxxxxxxxxxxxxxxxxxx; s.hauer@xxxxxxxxxxxxxx; kernel@xxxxxxxxxxxxxx;
> festevam@xxxxxxxxx; dl-linux-imx <linux-imx@xxxxxxx>; linux-usb@xxxxxxxxxxxxxxx;
> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; Peter Chen
> <peter.chen@xxxxxxx>; Anson Huang <anson.huang@xxxxxxx>; Peng Fan
> <peng.fan@xxxxxxx>; Horia Geanta <horia.geanta@xxxxxxx>
> Subject: Re: [PATCH v2 1/5] usb: dwc3: add platform data to dwc3 core device to
> pass data
>
>
> Hi,
>
> Li Jun <jun.li@xxxxxxx> writes:
> > In case dwc3 has SoC specific customizations, dwc3 glue driver can
> > base on compatible string and pass it via platform data to dwc3 core
> > driver; and pass xhci private data further to xhci-plat like quirks.
> >
> > Signed-off-by: Li Jun <jun.li@xxxxxxx>
> > ---
> > drivers/usb/dwc3/core.h | 5 +++++
> > drivers/usb/dwc3/host.c | 9 +++++++++
> > 2 files changed, 14 insertions(+)
> >
> > diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index
> > 0b8ea8c..3146697 100644
> > --- a/drivers/usb/dwc3/core.h
> > +++ b/drivers/usb/dwc3/core.h
> > @@ -29,6 +29,7 @@
> > #include <linux/ulpi/interface.h>
> >
> > #include <linux/phy/phy.h>
> > +#include "../host/xhci-plat.h"
> >
> > #define DWC3_MSG_MAX 500
> >
> > @@ -924,6 +925,10 @@ struct dwc3_scratchpad_array {
> > __le64 dma_adr[DWC3_MAX_HIBER_SCRATCHBUFS];
> > };
> >
> > +struct dwc3_platform_data {
> > + struct xhci_plat_priv *xhci_priv;
> > +};
>
> why? We should rely on properties, no?
My v1 patch was adding new property directly, considering Rob has objection
on that way if I understand correctly, also there is suggestion on use
compatible string to set quirks, I changed to add platform data to pass
SoC level quirks, I think this also can be used to extend other special
handling for glue layer driver, so should I go back to use properties?
Hope an agreement can be made on adding new properties/quirks.
Thanks
Li Jun
>
> --
> balbi
