Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Wed, 8 May 2019 16:34:34 +0900
From:   William Breathitt Gray <vilhelm.gray@gmail.com>
To:     Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc:     Benjamin Gaignard <benjamin.gaignard@st.com>,
        Lars-Peter Clausen <lars@metafoo.de>,
        Alexandre Torgue <alexandre.torgue@st.com>,
        linux-iio@vger.kernel.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
        Hartmut Knaack <knaack.h@gmx.de>,
        Fabrice Gasnier <fabrice.gasnier@st.com>,
        linux-stm32@st-md-mailman.stormreply.com,
        Jonathan Cameron <jic23@kernel.org>
Subject: Re: [PATCH] IIO: stm32: Remove quadrature related functions from
 trigger driver
Message-ID: <20190508073434.GA3277@icarus>
References: <20190507091224.17781-1-benjamin.gaignard@st.com>
 <20190507101729.GA3420@icarus>
 <CA+M3ks4LhOFTeArnh3d=C02qLJWj_u6tWDDOhD8kZnJPRkXC8w@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <CA+M3ks4LhOFTeArnh3d=C02qLJWj_u6tWDDOhD8kZnJPRkXC8w@mail.gmail.com>
User-Agent: Mutt/1.11.4 (2019-03-13)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Tue, May 07, 2019 at 02:37:07PM +0200, Benjamin Gaignard wrote:
> Le mar. 7 mai 2019 à 12:19, William Breathitt Gray
> <vilhelm.gray@gmail.com> a écrit :
> >
> > On Tue, May 07, 2019 at 11:12:24AM +0200, Benjamin Gaignard wrote:
> > > Quadrature feature is now hosted on it own framework.
> > > Remove quadrature related code from stm32-trigger driver to avoid
> > > code duplication and simplify the ABI.
> > >
> > > Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
> >
> > Although this functionality is now provided by the Counter subsystem, we
> > should keep the IIO Counter interface for this driver intact since
> > existing user applications may depend on it; this is the same reason why
> > the IIO Counter code in the 104-QUAD-8 device driver was not removed
> > despite moving to the Counter subsystem.
> >
> > Once user applications have had enough time to migrate to the Generic
> > Counter interface, we can consider removing the deprecated IIO Counter
> > interface.
> 
> Hi William,
> 
> This SoC is not yet in production so their is no legacy on the old interface
> and I would like to avoid to create one.
> 
> Benjamin

Ah, I see what you mean, this driver is for future devices. Do the
earlier STM32 H7 series devices have a quadrature feature as well, or is
this functionality only available with the new devices?

William Breathitt Gray

> 
> >
> > William Breathitt Gray
> >
> > _______________________________________________
> > linux-arm-kernel mailing list
> > linux-arm-kernel@lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel