Re: [PATCH RFC 1/4] phy: Add new Exynos5 USB 3.0 PHY driver

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On Monday 04 November 2013 05:56 PM, Tomasz Figa wrote:
Hi Kishon,

On Monday 04 of November 2013 12:24:42 Kishon Vijay Abraham I wrote:
Hi Vivek,

On Thursday 31 October 2013 01:15 PM, Vivek Gautam wrote:
Add a new driver for the USB 3.0 PHY on Exynos5 series of SoCs.
The new driver uses the generic PHY framework and will interact
with DWC3 controller present on Exynos5 series of SoCs.

In Exynos, you have a single IP that supports both USB3 and USB2 PHY
right? I think that needs to be mentioned here.

Nope. There are two separate, different IPs.

Alright. Thanks for the clarification.

Cheers
Kishon


Do you have separate registers that should be used for
initializing/powerin_on/powering_off etc.. for usb2 phy and usb3 phy? If
so, then you should model this driver as a single driver that supports
two PHYs similar to what Sylwester has done before?

Sylwester's MIPI PHY uses such model because it has a single register
that controls both PHYs.

Best regards,
Tomasz


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