From: Brian Masney <masneyb@onstation.org>
To: Rob Herring <robh+dt@kernel.org>, Stephen Boyd <sboyd@kernel.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Mark Rutland <mark.rutland@arm.com>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Michael Turquette <mturquette@baylibre.com>,
Linux Input <linux-input@vger.kernel.org>,
devicetree@vger.kernel.org,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
linux-clk <linux-clk@vger.kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
thierry.reding@gmail.com
Subject: Re: [PATCH 4/7] dt-bindings: Input: introduce new clock vibrator bindings
Date: Mon, 9 Dec 2019 11:55:58 -0500 [thread overview]
Message-ID: <20191209165558.GA3212@onstation.org> (raw)
In-Reply-To: <CAL_JsqJ2v1fL7gkAg7C3GjokV7WD87S3P5HCwi-ZJ7EOjds8Pw@mail.gmail.com>
On Mon, Dec 09, 2019 at 10:16:26AM -0600, Rob Herring wrote:
> On Sun, Dec 8, 2019 at 6:54 PM Brian Masney <masneyb@onstation.org> wrote:
> >
> > On Thu, Dec 05, 2019 at 07:56:10AM -0600, Rob Herring wrote:
> > > On Wed, Dec 4, 2019 at 6:25 PM Brian Masney <masneyb@onstation.org> wrote:
> > > >
> > > > Add support for clock-based vibrator devices where the speed can be
> > > > controlled by changing the duty cycle.
> > > >
> > > > Signed-off-by: Brian Masney <masneyb@onstation.org>
> > > > ---
> > > > .../bindings/input/clk-vibrator.yaml | 60 +++++++++++++++++++
> > > > 1 file changed, 60 insertions(+)
> > > > create mode 100644 Documentation/devicetree/bindings/input/clk-vibrator.yaml
> > > >
> > > > diff --git a/Documentation/devicetree/bindings/input/clk-vibrator.yaml b/Documentation/devicetree/bindings/input/clk-vibrator.yaml
> > > > new file mode 100644
> > > > index 000000000000..2103a5694fad
> > > > --- /dev/null
> > > > +++ b/Documentation/devicetree/bindings/input/clk-vibrator.yaml
> > > > @@ -0,0 +1,60 @@
> > > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > > > +%YAML 1.2
> > > > +---
> > > > +$id: http://devicetree.org/schemas/bindings/input/clk-vibrator.yaml#
> > > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > > +
> > > > +title: Clock vibrator
> > > > +
> > > > +maintainers:
> > > > + - Brian Masney <masneyb@onstation.org>
> > > > +
> > > > +description: |
> > > > + Support for clock-based vibrator devices where the speed can be controlled
> > > > + by changing the duty cycle.
> > > > +
> > > > +properties:
> > > > + compatible:
> > > > + const: clk-vibrator
> > > > +
> > > > + clocks:
> > > > + maxItems: 1
> > > > +
> > > > + clock-names:
> > > > + description: output clock that controls the speed
> > > > + items:
> > > > + - const: core
> > >
> > > No point in making up a name when there's only one clock, so drop.
> >
> > OK, will do.
> >
> > >
> > > > +
> > > > + clock-frequency: true
> > >
> > > Given the frequency is variable, what does this mean in this case?
> >
> > The clock frequency is fixed. The duty cycle is what's variable.
>
> That sounds like a PWM then...
Yes... See this message from Stephen with some more background
information about why this is in the clk subsystem:
https://lore.kernel.org/lkml/20190627234929.B78E520815@mail.kernel.org/
Brian
next prev parent reply other threads:[~2019-12-09 16:56 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-05 0:24 [PATCH 0/7] qcom: add clk-vibrator driver Brian Masney
2019-12-05 0:24 ` [PATCH 1/7] clk: qcom: add support for setting the duty cycle Brian Masney
2019-12-10 4:47 ` Taniya Das
2020-02-12 23:23 ` Stephen Boyd
[not found] ` <0101016eee224b50-8a5545e2-837f-41c2-9574-b385e111a6b3-000000@us-west-2.amazonses.com>
2019-12-10 11:51 ` Brian Masney
2019-12-13 13:56 ` Linus Walleij
2019-12-05 0:24 ` [PATCH 2/7] dt-bindings: Input: drop msm-vibrator in favor of clk-vibrator Brian Masney
2019-12-17 14:11 ` Rob Herring
2019-12-05 0:24 ` [PATCH 3/7] Input: drop msm-vibrator in favor of clk-vibrator driver Brian Masney
2020-02-11 12:18 ` Brian Masney
2019-12-05 0:25 ` [PATCH 4/7] dt-bindings: Input: introduce new clock vibrator bindings Brian Masney
2019-12-05 13:56 ` Rob Herring
2019-12-09 0:54 ` Brian Masney
2019-12-09 16:16 ` Rob Herring
2019-12-09 16:55 ` Brian Masney [this message]
2020-01-05 8:35 ` Stephen Boyd
2020-01-07 12:03 ` Brian Masney
2020-01-07 17:52 ` Stephen Boyd
2020-01-07 23:18 ` Brian Masney
2019-12-05 0:25 ` [PATCH 5/7] Input: introduce new clock vibrator driver Brian Masney
2019-12-05 0:25 ` [PATCH 6/7] ARM: qcom_defconfig: drop msm-vibrator in favor of clk-vibrator driver Brian Masney
2019-12-05 0:25 ` [PATCH 7/7] ARM: dts: qcom: msm8974-hammerhead: add support for vibrator Brian Masney
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