RE: [PATCH 0/4] phy: samsung-usb2: Add support for Vbus regulator

[David Laight]

From: Vivek Gautam
> This has been on my to-do list for sometime.
> Until now the host controller (specifically ehci-exynos) is responsible
> for enabling VBUS supply. This opens up one more issue which is, when
> only ohci-exynos is enabled and ehci-exynosis disabled then VBUS was
> never enabled (since ohci did not have the code to enabled the VBUS supply).
> 
> Rather it should be wise to move the VBUS related stuff to phy driver and
> let phy take care of enabling it.
> 
> This patch series adds that VBUS regulator to phy-samsung-usb2 driver,
> adds necessary binding information as well as vbus-supply properties
> to phy nodes on exynos5250 systems.
...

Does this go anyway to allowing devices to be powered from a micro-usb
connector while acting as a USB host (USB OTG).
ie when you want VBUS disabled even though it would normally
need to be enabled.

	David



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