Re: [PATCH] ARM: shmobile: r8a7790: link PCI USb devices to USB PHY

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Hello.

On 10-04-2014 11:07, Magnus Damm wrote:

Thanks for this patch, good to see that the relationship between the
USB Host and the PHY is described via DT.

This patch seems to cover USB0 and USB2 that both require special
control in the PHY. How about USB1? Can you explain about the reason
why you omit that?

   Because the driver does nothing for USB1 anyway.

I somehow expected USB1 to be tied to the PHY via DT as well, this so
the PHY driver can be able to disable the hardware if no ports are
registered. In detail, I'm thinking that the register.bit
UGCTL.CONNECT wants to be set to 0 by default but be set to 1 once one
or more USB controllers are hooked up to the PHY.

I don't think this bit has any sense for non-USBHS controllers. EHCI/OHCI drivers happily work without setting it.

WBR, Sergei

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