From: Lukasz Majewski <l.majewski@majess.pl>
To: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Cc: devicetree@vger.kernel.org, stefan@agner.ch,
thierry.reding@gmail.com, kernel@pengutronix.de,
fabio.estevam@nxp.com, shawnguo@kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 5/6] arm: dts: imx7-colibri: Use pwm polarity control
Date: Fri, 7 Oct 2016 08:41:20 +0200 [thread overview]
Message-ID: <20161007084120.32a92ca8@jawa> (raw)
In-Reply-To: <5fd194a3-5bfb-2fab-af82-95c87a0e7af1@toradex.com>
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On Fri, 7 Oct 2016 11:38:52 +0530
Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> wrote:
> On 10/06/16 12:10, Lukasz Majewski wrote:
>
> > On Sat, 1 Oct 2016 15:42:34 +0530
> > Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> wrote:
> >
> >> Configure PWM polarity control.
> >>
> >> Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
> >> ---
> >> arch/arm/boot/dts/imx7-colibri.dtsi | 2 +-
> >> 1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> diff --git a/arch/arm/boot/dts/imx7-colibri.dtsi
> >> b/arch/arm/boot/dts/imx7-colibri.dtsi index a9cc657..2af5e3e 100644
> >> --- a/arch/arm/boot/dts/imx7-colibri.dtsi
> >> +++ b/arch/arm/boot/dts/imx7-colibri.dtsi
> >> @@ -43,7 +43,7 @@
> >> / {
> >> bl: backlight {
> >> compatible = "pwm-backlight";
> >> - pwms = <&pwm1 0 5000000>;
> >> + pwms = <&pwm1 0 5000000 0>;
> > My recommendation would be to add:
> > #include <dt-bindings/pwm/pwm.h>
> >
> > and then define pwms as:
> >
> > pwms = <&pwm1 0 5000000 PWM_POLARITY_NORMAL>;
>
> Addendum:
> There is no "PWM_POLARITY_NORMAL" defined in "#include
> <dt-bindings/pwm/pwm.h>" I guess it is helpful when polarity
> inversion is enabled.
Yes, you are right :-), the normal polarity is assumed to be the
default.
There is only defined flag for inversion.
Sorry for the noise.
Best regards,
Łukasz Majewski
>
> --
> Bhuvan
>
> >
> > It would be more readable
> >
> > Best regards,
> > Łukasz Majewski
> >
> >> };
> >>
> >> reg_module_3v3: regulator-module-3v3 {
>
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next prev parent reply other threads:[~2016-10-07 6:41 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-01 10:12 [PATCH v2 0/6] Support PWM polarity control Bhuvanchandra DV
2016-10-01 10:12 ` [PATCH v2 1/6] pwm: print error messages with pr_err() instead of pr_debug() Bhuvanchandra DV
2016-10-01 10:12 ` [PATCH v2 2/6] pwm: core: make the PWM_POLARITY flag in DTB optional Bhuvanchandra DV
2016-10-01 10:12 ` [PATCH v2 3/6] pwm: imx: support output polarity inversion Bhuvanchandra DV
2016-10-01 10:12 ` [PATCH v2 4/6] arm: dts: imx7: Update #pwm-cells for PWM polarity control Bhuvanchandra DV
2016-10-01 10:12 ` [PATCH v2 5/6] arm: dts: imx7-colibri: Use pwm " Bhuvanchandra DV
2016-10-06 6:40 ` Lukasz Majewski
2016-10-07 4:49 ` Bhuvanchandra DV
2016-10-07 6:08 ` Bhuvanchandra DV
2016-10-07 6:41 ` Lukasz Majewski [this message]
2016-10-01 10:12 ` [PATCH v2 6/6] arm: dts: imx7-colibri: Use enable-gpios for BL_ON Bhuvanchandra DV
2016-10-04 7:48 ` [PATCH v2 0/6] Support PWM polarity control Lukasz Majewski
2016-10-05 16:50 ` Stefan Agner
2016-10-06 6:26 ` Lukasz Majewski
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