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From: Matthias Kaehlcke <mka@chromium.org>
To: skakit@codeaurora.org
Cc: Pavel Machek <pavel@ucw.cz>, Rob Herring <robh+dt@kernel.org>,
	Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	swboyd@chromium.org, kgunda@codeaurora.org,
	linux-leds@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH 3/3] arm64: dts: qcom: pm8350c: Add pwm support
Date: Wed, 8 Sep 2021 08:29:56 -0700	[thread overview]
Message-ID: <YTjW9LAGhTuszoa4@google.com> (raw)
In-Reply-To: <b10e5f36fb0216a4c951d752f5103099@codeaurora.org>

On Wed, Sep 08, 2021 at 02:37:39PM +0530, skakit@codeaurora.org wrote:
> On 2021-09-07 23:46, Matthias Kaehlcke wrote:
> > On Mon, Sep 06, 2021 at 04:11:07PM +0530, satya priya wrote:
> > > Add pwm support for PM8350C pmic.
> > > 
> > > Signed-off-by: satya priya <skakit@codeaurora.org>
> > > ---
> > >  arch/arm64/boot/dts/qcom/pm8350c.dtsi | 6 ++++++
> > >  1 file changed, 6 insertions(+)
> > > 
> > > diff --git a/arch/arm64/boot/dts/qcom/pm8350c.dtsi
> > > b/arch/arm64/boot/dts/qcom/pm8350c.dtsi
> > > index e1b75ae..ecdae55 100644
> > > --- a/arch/arm64/boot/dts/qcom/pm8350c.dtsi
> > > +++ b/arch/arm64/boot/dts/qcom/pm8350c.dtsi
> > > @@ -29,6 +29,12 @@
> > >  			interrupt-controller;
> > >  			#interrupt-cells = <2>;
> > >  		};
> > > +
> > > +		pm8350c_pwm4: pwm {
> > 
> > What does the '4' represent, an internal channel number? It should
> > probably be omitted if the PM8350 only has a single output PWM
> > port.
> > 
> 
> pm8350c has four PWMs, but I think we can drop the '4' here.

Why is only one PWM exposed if the PMIC has for of them? Why number 4
and not one of the others?

  reply	other threads:[~2021-09-08 15:30 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-06 10:41 [PATCH 0/3] Add PM8350C PMIC PWM support for backlight satya priya
2021-09-06 10:41 ` [PATCH 1/3] dt-bindings: leds: Add pm8350c pmic support satya priya
2021-09-07 17:48   ` Matthias Kaehlcke
2021-09-07 20:03   ` Stephen Boyd
2021-09-08 13:52   ` Rob Herring
2021-09-06 10:41 ` [PATCH 2/3] leds: Add pm8350c support to Qualcomm LPG driver satya priya
2021-09-07 17:54   ` Matthias Kaehlcke
2021-09-07 17:58     ` Matthias Kaehlcke
2021-09-07 18:02   ` Matthias Kaehlcke
2021-09-07 20:20   ` Stephen Boyd
2021-09-08  9:17     ` skakit
2021-09-08 17:11       ` Bjorn Andersson
2021-09-06 10:41 ` [PATCH 3/3] arm64: dts: qcom: pm8350c: Add pwm support satya priya
2021-09-07 18:16   ` Matthias Kaehlcke
2021-09-08  9:07     ` skakit
2021-09-08 15:29       ` Matthias Kaehlcke [this message]
2021-09-08 17:08         ` Bjorn Andersson
2021-09-09  6:11           ` skakit
2021-09-08  3:34   ` Stephen Boyd
2021-09-08  9:14     ` skakit

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