From: Jingbao Qiu <qiujingbao.dlmu@gmail.com>
To: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
Cc: robh@kernel.org, krzysztof.kozlowski+dt@linaro.org,
conor+dt@kernel.org, inochiama@outlook.com,
paul.walmsley@sifive.com, palmer@dabbelt.com,
aou@eecs.berkeley.edu, linux-pwm@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org
Subject: Re: [PATCH v6 2/2] pwm: sophgo: add pwm support for Sophgo CV1800 SoC
Date: Tue, 30 Apr 2024 20:47:44 +0800 [thread overview]
Message-ID: <CAJRtX8TOSXey0Q3ZZ_GRSMYg5CgX1trHXu7+2bAMWBuN5d9aTg@mail.gmail.com> (raw)
In-Reply-To: <vxolfkvbquiy2jllncjy3vbfl2jr26wkdvpxv65uz4dneln5jb@ozg6ejzgmj6f>
On Tue, Apr 30, 2024 at 4:06 PM Uwe Kleine-König
<u.kleine-koenig@pengutronix.de> wrote:
>
> Hello Jingbao,
>
> On Tue, Apr 30, 2024 at 12:36:56PM +0800, Jingbao Qiu wrote:
> > On Mon, Apr 29, 2024 at 10:54 PM Uwe Kleine-König
> > <u.kleine-koenig@pengutronix.de> wrote:
> > > On Sat, Apr 06, 2024 at 02:34:13PM +0800, Jingbao Qiu wrote:
> > > > + * Limitations:
> > > > + * - It output low when PWM channel disabled.
> > >
> > > Just to be sure: the output is low independant of the POLARITY register?
> >
> > When the value of the POLARITY register is 1, the PWM outputs a high level.
> > When the value of the POLARITY register is 0, the PWM output is low.
> > Should I make this point here?
>
> So that's: The hardware emits the inactive level when disabled.
>
I will do that.
Best regards
Jingbao Qiu
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prev parent reply other threads:[~2024-04-30 12:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-06 6:34 [PATCH v6 0/2] riscv: pwm: sophgo: add pwm support for CV1800 Jingbao Qiu
2024-04-06 6:34 ` [PATCH v6 1/2] dt-bindings: pwm: sophgo: add pwm for Sophgo CV1800 series SoC Jingbao Qiu
2024-04-06 6:34 ` [PATCH v6 2/2] pwm: sophgo: add pwm support for Sophgo CV1800 SoC Jingbao Qiu
2024-04-29 14:54 ` Uwe Kleine-König
2024-04-30 4:36 ` Jingbao Qiu
2024-04-30 8:06 ` Uwe Kleine-König
2024-04-30 12:47 ` Jingbao Qiu [this message]
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