From: Serge Semin <fancer.lancer@gmail.com>
To: Rob Herring <robh@kernel.org>
Cc: richard.leitner@skidata.com, gregkh@linuxfoundation.org,
mark.rutland@arm.com, Sergey.Semin@t-platforms.ru,
linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 9/9 v2] usb: usb251xb: Use GPIO descriptor consumer interface
Date: Thu, 21 Sep 2017 00:29:28 +0300 [thread overview]
Message-ID: <20170920212928.GC3547@mobilestation> (raw)
In-Reply-To: <20170920133735.k3yzh2m6zb5qzhn2@rob-hp-laptop>
On Wed, Sep 20, 2017 at 03:52:57PM -0500, Rob Herring <robh@kernel.org> wrote:
> 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.
>
Ok.
> >
> > Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
> > ---
> > Documentation/devicetree/bindings/usb/usb251xb.txt | 2 +-
> > drivers/usb/misc/usb251xb.c | 34 +++++++++-------------
> > 2 files changed, 15 insertions(+), 21 deletions(-)
next prev parent reply other threads:[~2017-09-20 21:29 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-15 23:31 [PATCH 0/5] usb: usb251xb: Add USB2517i hub support and fix some bugs Serge Semin
2017-09-15 23:31 ` [PATCH 1/5] usb: usb251xb: Add USB2517/i hub support Serge Semin
2017-09-15 23:45 ` Greg KH
2017-09-15 23:55 ` Serge Semin
2017-09-20 20:52 ` Rob Herring
2017-09-20 21:15 ` Serge Semin
2017-09-21 16:53 ` Rob Herring
2017-09-21 17:40 ` Serge Semin
2017-09-15 23:31 ` [PATCH 2/5] usb: usb251xb: Fix property_u32 NULL pointer dereference Serge Semin
2017-09-15 23:31 ` [PATCH 3/5] usb: usb251xb: Add max power/current dts nodes Serge Semin
2017-09-15 23:31 ` [PATCH 4/5] usb: usb251xb: Use GPIO descriptor consumer interface Serge Semin
2017-09-15 23:31 ` [PATCH 5/5] usb: usb251xb: Add copyrights Serge Semin
2017-09-15 23:40 ` Greg KH
2017-09-15 23:42 ` Greg KH
2017-09-15 23:45 ` Serge Semin
2017-09-15 23:53 ` Greg KH
2017-09-16 0:11 ` Serge Semin
2017-09-16 10:42 ` [PATCH 0/9 v2] usb: usb251xb: Add USB2517i hub support and fix some bugs Serge Semin
2017-09-16 10:42 ` [PATCH 1/9 v2] usb: usb251xb: Add USB2517i specific struct and IDs Serge Semin
2017-10-04 7:39 ` Richard Leitner
2017-09-16 10:42 ` [PATCH 2/9 v2] usb: usb251xb: Add USB251x specific port count setting Serge Semin
2017-10-04 7:27 ` Richard Leitner
2017-09-16 10:42 ` [PATCH 3/9 v2] usb: usb251xb: Add 5,6,7 ports mapping def setting Serge Semin
2017-10-04 7:51 ` Richard Leitner
2017-09-16 10:42 ` [PATCH 4/9 v2] usb: usb251xb: Add 5,6,7 ports boost settings Serge Semin
2017-10-04 7:57 ` Richard Leitner
2017-09-16 10:42 ` [PATCH 5/9 v2] usb: usb251xb: Add battery enable setting flag Serge Semin
2017-09-16 10:42 ` [PATCH 6/9 v2] usb: usb251xb: Add USB2517 LED settings Serge Semin
2017-09-16 10:42 ` [PATCH 7/9 v2] usb: usb251xb: Fix property_u32 NULL pointer dereference Serge Semin
2017-09-16 10:42 ` [PATCH 8/9 v2] usb: usb251xb: Add max power/current dts property support Serge Semin
2017-09-20 20:52 ` Rob Herring
2017-09-20 21:27 ` Serge Semin
2017-09-21 16:26 ` Rob Herring
2017-09-21 17:10 ` Serge Semin
2017-10-04 8:12 ` Richard Leitner
2017-10-04 13:44 ` Rob Herring
2017-09-16 10:42 ` [PATCH 9/9 v2] usb: usb251xb: Use GPIO descriptor consumer interface Serge Semin
2017-09-20 20:52 ` Rob Herring
2017-09-20 21:29 ` Serge Semin [this message]
2017-09-21 8:23 ` Greg KH
2017-09-21 14:51 ` Serge Semin
2017-09-21 15:07 ` Greg KH
2017-09-22 15:26 ` Serge Semin
2017-09-22 16:05 ` Greg KH
2017-10-22 20:38 ` [PATCH 00/10 v3] usb: usb251xb: Add USB2517i hub support and fix some bugs Serge Semin
2017-10-22 20:38 ` [PATCH 01/10 v3] usb: usb251xb: Update usb251xb bindings Serge Semin
2017-10-27 3:21 ` Rob Herring
2017-10-22 20:38 ` [PATCH 02/10 v3] usb: usb251xb: Add USB2517i specific struct and IDs Serge Semin
2017-10-23 21:47 ` Richard Leitner
2017-10-22 20:38 ` [PATCH 03/10 v3] usb: usb251xb: Add USB251x specific port count setting Serge Semin
2017-10-23 21:36 ` Richard Leitner
2017-10-22 20:38 ` [PATCH 04/10 v3] usb: usb251xb: Add 5,6,7 ports mapping def setting Serge Semin
2017-10-22 20:38 ` [PATCH 05/10 v3] usb: usb251xb: Add 5,6,7 ports boost settings Serge Semin
2017-10-22 20:38 ` [PATCH 06/10 v3] usb: usb251xb: Add battery enable setting flag Serge Semin
2017-10-22 20:38 ` [PATCH 07/10 v3] usb: usb251xb: Add USB2517 LED settings Serge Semin
2017-10-22 20:38 ` [PATCH 08/10 v3] usb: usb251xb: Fix property_u32 NULL pointer dereference Serge Semin
2017-10-22 20:38 ` [PATCH 09/10 v3] usb: usb251xb: Add max power/current dts property support Serge Semin
2017-10-23 21:55 ` Richard Leitner
2017-10-22 20:38 ` [PATCH 10/10 v3] usb: usb251xb: Use GPIO descriptor consumer interface Serge Semin
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