* [PATCH] dt-bindings: pwm: pca9685: add staggered-outputs property
@ 2020-11-12 16:39 Clemens Gruber
2020-12-07 18:50 ` Rob Herring
0 siblings, 1 reply; 6+ messages in thread
From: Clemens Gruber @ 2020-11-12 16:39 UTC (permalink / raw)
To: linux-pwm, devicetree
Cc: Rob Herring, Thierry Reding, u.kleine-koenig, Lee Jones,
linux-kernel, Clemens Gruber
The pca9685 driver supports a new staggered-outputs property for reduced
current surges and EMI. This adds documentation for the new DT property.
Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
---
Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
index f21b55c95738..911bbb65984e 100644
--- a/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
+++ b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
@@ -12,6 +12,8 @@ Optional properties:
- invert (bool): boolean to enable inverted logic
- open-drain (bool): boolean to configure outputs with open-drain structure;
if omitted use totem-pole structure
+ - staggered-outputs (bool): boolean to enable staggered output ON times to
+ minimize current surges and EMI
Example:
--
2.29.2
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] dt-bindings: pwm: pca9685: add staggered-outputs property
2020-11-12 16:39 [PATCH] dt-bindings: pwm: pca9685: add staggered-outputs property Clemens Gruber
@ 2020-12-07 18:50 ` Rob Herring
0 siblings, 0 replies; 6+ messages in thread
From: Rob Herring @ 2020-12-07 18:50 UTC (permalink / raw)
To: Clemens Gruber
Cc: linux-pwm, devicetree, Thierry Reding, u.kleine-koenig,
Lee Jones, linux-kernel
On Thu, Nov 12, 2020 at 05:39:31PM +0100, Clemens Gruber wrote:
> The pca9685 driver supports a new staggered-outputs property for reduced
> current surges and EMI. This adds documentation for the new DT property.
>
> Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
> ---
> Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
> index f21b55c95738..911bbb65984e 100644
> --- a/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
> +++ b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
> @@ -12,6 +12,8 @@ Optional properties:
> - invert (bool): boolean to enable inverted logic
> - open-drain (bool): boolean to configure outputs with open-drain structure;
> if omitted use totem-pole structure
> + - staggered-outputs (bool): boolean to enable staggered output ON times to
> + minimize current surges and EMI
Needs a vendor prefix.
>
> Example:
>
> --
> 2.29.2
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] dt-bindings: pwm: pca9685: Add staggered-outputs property
@ 2020-11-18 17:45 Clemens Gruber
2020-11-20 8:21 ` Uwe Kleine-König
0 siblings, 1 reply; 6+ messages in thread
From: Clemens Gruber @ 2020-11-18 17:45 UTC (permalink / raw)
To: linux-pwm, devicetree
Cc: Rob Herring, Thierry Reding, u.kleine-koenig, Lee Jones,
linux-kernel, Clemens Gruber
The pca9685 driver supports a new staggered-outputs property for reduced
current surges and EMI. This adds documentation for the new DT property.
Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
---
Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
index f21b55c95738..911bbb65984e 100644
--- a/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
+++ b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
@@ -12,6 +12,8 @@ Optional properties:
- invert (bool): boolean to enable inverted logic
- open-drain (bool): boolean to configure outputs with open-drain structure;
if omitted use totem-pole structure
+ - staggered-outputs (bool): boolean to enable staggered output ON times to
+ minimize current surges and EMI
Example:
--
2.29.2
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] dt-bindings: pwm: pca9685: Add staggered-outputs property
2020-11-18 17:45 [PATCH] dt-bindings: pwm: pca9685: Add " Clemens Gruber
@ 2020-11-20 8:21 ` Uwe Kleine-König
2020-11-20 12:36 ` Clemens Gruber
0 siblings, 1 reply; 6+ messages in thread
From: Uwe Kleine-König @ 2020-11-20 8:21 UTC (permalink / raw)
To: Clemens Gruber
Cc: linux-pwm, devicetree, Rob Herring, Thierry Reding, Lee Jones,
linux-kernel
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On Wed, Nov 18, 2020 at 06:45:15PM +0100, Clemens Gruber wrote:
> The pca9685 driver supports a new staggered-outputs property for reduced
> current surges and EMI. This adds documentation for the new DT property.
Maybe point out the commit that added this support here?
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | https://www.pengutronix.de/ |
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] dt-bindings: pwm: pca9685: Add staggered-outputs property
2020-11-20 8:21 ` Uwe Kleine-König
@ 2020-11-20 12:36 ` Clemens Gruber
2020-11-20 12:48 ` Uwe Kleine-König
0 siblings, 1 reply; 6+ messages in thread
From: Clemens Gruber @ 2020-11-20 12:36 UTC (permalink / raw)
To: Uwe Kleine-König
Cc: linux-pwm, devicetree, Rob Herring, Thierry Reding, Lee Jones,
linux-kernel
Hi,
On Fri, Nov 20, 2020 at 09:21:50AM +0100, Uwe Kleine-König wrote:
> On Wed, Nov 18, 2020 at 06:45:15PM +0100, Clemens Gruber wrote:
> > The pca9685 driver supports a new staggered-outputs property for reduced
> > current surges and EMI. This adds documentation for the new DT property.
>
> Maybe point out the commit that added this support here?
The pca9685 driver patch was not yet accepted and there will be a v2.
Should I wait until the support is in Linus' tree and only then send a
dt-bindings documentation patch, mentioning the commit?
Best regards,
Clemens
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] dt-bindings: pwm: pca9685: Add staggered-outputs property
2020-11-20 12:36 ` Clemens Gruber
@ 2020-11-20 12:48 ` Uwe Kleine-König
0 siblings, 0 replies; 6+ messages in thread
From: Uwe Kleine-König @ 2020-11-20 12:48 UTC (permalink / raw)
To: Clemens Gruber
Cc: linux-pwm, devicetree, Rob Herring, Thierry Reding, Lee Jones,
linux-kernel
[-- Attachment #1: Type: text/plain, Size: 914 bytes --]
On Fri, Nov 20, 2020 at 01:36:54PM +0100, Clemens Gruber wrote:
> Hi,
>
> On Fri, Nov 20, 2020 at 09:21:50AM +0100, Uwe Kleine-König wrote:
> > On Wed, Nov 18, 2020 at 06:45:15PM +0100, Clemens Gruber wrote:
> > > The pca9685 driver supports a new staggered-outputs property for reduced
> > > current surges and EMI. This adds documentation for the new DT property.
> >
> > Maybe point out the commit that added this support here?
>
> The pca9685 driver patch was not yet accepted and there will be a v2.
>
> Should I wait until the support is in Linus' tree and only then send a
> dt-bindings documentation patch, mentioning the commit?
Then I'd say add the dt-bindings patch to the series adding this
support.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | https://www.pengutronix.de/ |
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-12-07 18:51 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-11-12 16:39 [PATCH] dt-bindings: pwm: pca9685: add staggered-outputs property Clemens Gruber
2020-12-07 18:50 ` Rob Herring
2020-11-18 17:45 [PATCH] dt-bindings: pwm: pca9685: Add " Clemens Gruber
2020-11-20 8:21 ` Uwe Kleine-König
2020-11-20 12:36 ` Clemens Gruber
2020-11-20 12:48 ` Uwe Kleine-König
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