# Re: \[PATCH v5\] phy: Renesas R-Car Gen2 PHY driver

- From: Sergei Shtylyov \<hidden\>
- Date: 2014-08-18 22:24:35 
- List: linux-devicetree
- Page: https://ratatoskr.run/linux-devicetree/2014/08/8095556
- Thread: https://ratatoskr.run/linux-devicetree/2014/07/8094497/t.md

```text
Hello.

On 07/22/2014 11:27 PM, Sergei Shtylyov wrote:

> This PHY, though formally being a part of Renesas USBHS controller, contains the
> UGCTRL2 register that controls multiplexing of the USB ports (Renesas calls them
> channels) to the different USB controllers: channel 0 can be connected to either
> PCI EHCI/OHCI or USBHS controllers, channel 2 can be connected to PCI EHCI/OHCI
> or xHCI controllers.

> This is a new driver for this USB PHY currently already supported under drivers/
> usb/phy/. The reason for writing the new driver was the requirement that the
> multiplexing  of USB channels to the controller be dynamic, depending on what
> USB drivers  are loaded,  rather than static as provided by the old driver. The
> infrastructure provided by drivers/phy/phy-core.c  seems to fit that purpose
> ideally. The new driver only  supports device tree probing  for now.

> Signed-off-by: Sergei Shtylyov <redacted>

> ---
> The patch is against the 'next' branch of Kishon's 'linux-phy.git' repo.

   Kishon, may I ask what was the problem with this patch? I don't see it in 3.17-rc1 and you've never replied though nearly a month has passed...

WBR, Sergei

```