Re: [PATCH 9/9 v2] usb: usb251xb: Use GPIO descriptor consumer interface

From: Rob Herring
Date: Wed Sep 20 2017 - 16:54:27 EST

On Sat, Sep 16, 2017 at 01:42:20PM +0300, Serge Semin wrote:
> The driver used to be developed with legacy GPIO API support. It's
> better to use descriptor-based interface for several reasons. First
> of all the legacy API doesn't support the ACTIVE_LOW/HIGH flag of dts
> nodes, which is essential since different hardware may have different
> GPIOs connectivity including the logical value inversion. Secondly,
> by requesting the reset GPIO descriptor the driver prevent the other
> applications from changing its value. And last but not least the
> legacy GPIO interface should be avoided in the new code due to it
> obsolescence.

All this has nothing to do with the binding. Please make the binding
change separate and state why it should be optional.

> Signed-off-by: Serge Semin <fancer.lancer@xxxxxxxxx>
> ---
> Documentation/devicetree/bindings/usb/usb251xb.txt | 2 +-
> drivers/usb/misc/usb251xb.c | 34 +++++++++-------------
> 2 files changed, 15 insertions(+), 21 deletions(-)