Re: [PATCH 2/4] usb: host: tegra: Remove direct vbus regulator control using GPIOs

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On 06/26/2013 03:59 AM, Mikko Perttunen wrote:
> The tegra ehci driver has enabled USB vbus regulators directly using
> GPIOs and the device tree attribute nvidia,vbus-gpio. This is ugly
> and causes error messages on boot when both the regulator driver
> and the ehci driver want access to the same GPIO.
> 
> This patch removes this mechanism of vbus control, so that an actual
> regulator interface can be used by the phy layer to control the
> usb vbus regulator.

This should be squashed into patch 1/4. The reason is that if just patch
1/4 is applied, then both ehci-tegra.c's legacy raw GPIO handling and
phy-tegra-usb.c's new regulator-based code will attempt to
gpio_request() the same GPIO, and one will fail, which will likely cause
the driver to fail to probe().
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