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

- From: Kishon Vijay Abraham I \<hidden\>
- Date: 2014-08-19 06:47:18 
- List: linux-devicetree
- Page: https://ratatoskr.run/linux-devicetree/2014/08/8095583
- Thread: https://ratatoskr.run/linux-devicetree/2014/07/8094497/t.md

```text


On Tuesday 19 August 2014 03:54 AM, Sergei Shtylyov wrote:
> 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...

It was too late to make it to 3.17.
Overall this patch looks much better. will take a closer look in a day.

Thanks
Kishon
> 
> WBR, Sergei
> 
```