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From: Rob Herring <robh@kernel.org>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Jacopo Mondi <jacopo+renesas@jmondi.org>,
	devicetree@vger.kernel.org, slongerbeam@gmail.com,
	linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org
Subject: Re: [PATCH 09/13] dt-bindings: media: ov5640: Add default for synch signals
Date: Mon, 20 Jul 2020 13:50:32 -0600	[thread overview]
Message-ID: <20200720195032.GA2889388@bogus> (raw)
In-Reply-To: <20200717205931.GK5961@pendragon.ideasonboard.com>

On Fri, Jul 17, 2020 at 11:59:31PM +0300, Laurent Pinchart wrote:
> Hi Jacopo,
> 
> Thank you for the patch.
> 
> On Fri, Jul 17, 2020 at 03:28:55PM +0200, Jacopo Mondi wrote:
> > Add defalt value for the DVP interface synchronism signals.
> 
> s/synchronism/synchronization/
> 
> > The default values have been derived from register 0x4740
> > documentation (datasheet version 2.03)
> > 
> > 0x4740 POLARITY CTRL00 default = 0x20
> > bit 5: pclk polarity = 1 active high
> > bit 1: HREF polarity = 0 active low
> > bit 0: VSYNC polarity = 0 active low
> 
> Do we need default values ? That's only for the case where the
> properties are not specified, and I think they are mandatory when the
> bus-type is set to parallel, aren't they ? I think stating this
> explicitly will be less error-prone.

In this case, I think default should be fixed or not configurable.

> > Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> > ---
> >  Documentation/devicetree/bindings/media/i2c/ov5640.yaml | 3 +++
> >  1 file changed, 3 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/media/i2c/ov5640.yaml b/Documentation/devicetree/bindings/media/i2c/ov5640.yaml
> > index ab700a1830aa..3c20cdd02f76 100644
> > --- a/Documentation/devicetree/bindings/media/i2c/ov5640.yaml
> > +++ b/Documentation/devicetree/bindings/media/i2c/ov5640.yaml
> > @@ -94,12 +94,15 @@ properties:
> >  
> >            hsync-active:
> >              enum: [0, 1]
> > +            default: 0
> >  
> >            vsync-active:
> >              enum: [0, 1]
> > +            default: 0
> >  
> >            pclk-sample:
> >              enum: [0, 1]
> > +            default: 1
> >  
> >          allOf:
> >            - if:
> 
> -- 
> Regards,
> 
> Laurent Pinchart

  reply	other threads:[~2020-07-20 19:50 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-17 13:28 [PATCH 00/13] dt-bindings: media: ov5640: Convert to json-schema Jacopo Mondi
2020-07-17 13:28 ` [PATCH 01/13] " Jacopo Mondi
2020-07-17 19:28   ` Laurent Pinchart
2020-07-20 16:32   ` Rob Herring
2020-07-17 13:28 ` [PATCH 02/13] arm64: dts: qcom: apq8016-sbc: Fix CSI-2 lanes routing Jacopo Mondi
2020-07-17 19:35   ` Laurent Pinchart
2020-07-22  8:14     ` Loic Poulain
2020-07-22  8:34       ` Jacopo Mondi
2020-07-17 13:28 ` [PATCH 03/13] dt-bindings: media: ov5640: Do not limit rotation Jacopo Mondi
2020-07-17 19:38   ` Laurent Pinchart
2020-07-20 19:36     ` Rob Herring
2020-07-17 13:28 ` [PATCH 04/13] dt-bindings: media: ti,cal: Remove sensor from example Jacopo Mondi
2020-07-17 19:39   ` Laurent Pinchart
2020-07-23 20:57   ` Rob Herring
2020-07-17 13:28 ` [PATCH 05/13] dt-bindings: media: ov5640: Make bus-type mandatory Jacopo Mondi
2020-07-17 15:48   ` Fabio Estevam
2020-07-17 19:48   ` Laurent Pinchart
2020-07-20 19:45   ` Rob Herring
2020-07-17 13:28 ` [PATCH 06/13] dt-bindings: media: ov5640: Require ep properties Jacopo Mondi
2020-07-17 19:50   ` Laurent Pinchart
2020-07-17 13:28 ` [PATCH 07/13] dt-bindings: media: ov5640: Remove clock-lanes Jacopo Mondi
2020-07-17 20:48   ` Laurent Pinchart
2020-07-20 19:47   ` Rob Herring
2020-07-17 13:28 ` [PATCH 08/13] dt-bindings: media: ov5640: Remove data-shift Jacopo Mondi
2020-07-17 20:57   ` Laurent Pinchart
2020-07-23 22:22     ` Sakari Ailus
2020-07-23 23:15       ` Laurent Pinchart
2020-07-25 21:18         ` Sakari Ailus
2020-07-25 21:31           ` Laurent Pinchart
2020-07-29 14:29             ` Sakari Ailus
2020-07-29 14:46               ` Laurent Pinchart
2020-07-30 16:22                 ` Sakari Ailus
2020-07-30 16:32                   ` Laurent Pinchart
2020-07-30 16:43                     ` Sakari Ailus
2020-07-17 13:28 ` [PATCH 09/13] dt-bindings: media: ov5640: Add default for synch signals Jacopo Mondi
2020-07-17 20:59   ` Laurent Pinchart
2020-07-20 19:50     ` Rob Herring [this message]
2020-07-17 13:28 ` [PATCH 10/13] dt-bindings: media: ov5640: Demote DVP required properties Jacopo Mondi
2020-07-17 21:00   ` Laurent Pinchart
2020-07-17 13:28 ` [PATCH 11/13] media: i2c: ov5640: Initialize DVP polarities as default Jacopo Mondi
2020-07-17 21:02   ` Laurent Pinchart
2020-07-17 13:28 ` [PATCH 12/13] MAINTAINERS: ov5640: Add bindings file Jacopo Mondi
2020-07-17 21:03   ` Laurent Pinchart
2020-07-17 13:28 ` [PATCH 13/13] dt-bindings: media: ov5640: Add myself as co-maintainer Jacopo Mondi
2020-07-17 21:03   ` Laurent Pinchart
2020-07-17 19:31 ` [PATCH 00/13] dt-bindings: media: ov5640: Convert to json-schema Laurent Pinchart

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