From: Hans Verkuil <hverkuil@xs4all.nl> To: Marco Felsch <m.felsch@pengutronix.de>, mchehab@kernel.org, sakari.ailus@linux.intel.com, hans.verkuil@cisco.com, jacopo+renesas@jmondi.org, robh+dt@kernel.org Cc: laurent.pinchart@ideasonboard.com, linux-media@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de, Rob Herring <robh@kernel.org> Subject: Re: [PATCH v6 01/13] dt-bindings: connector: analog: add tv norms property Date: Mon, 6 May 2019 12:01:06 +0200 Message-ID: <9989034f-4794-adba-d89c-8330bbf7b27f@xs4all.nl> (raw) In-Reply-To: <20190415124413.18456-2-m.felsch@pengutronix.de> On 4/15/19 2:44 PM, Marco Felsch wrote: > Some connectors no matter if in- or output supports only a limited > range of tv norms. It doesn't matter if the hardware behind that > connector supports more than the listed formats since the users are > restriced by a label e.g. to plug only a camera into this connector > which uses the PAL format. For S-Video and Composite connectors there are really just two formats to consider: 50 and 60 Hz. I.e. there is no difference between PAL and SECAM. Only for tuners/modulators does this matter. So it is a good idea to add TVNORM_525_60, TVNORM_625_50 to tvnorms.h. In the various bindings examples I would recommend that you use TVNORM_525_60 or TVNORM_625_50 rather than e.g. PAL_M since that's what you would use in practice for Composite/S-Video. Regards, Hans > > This patch adds the capability to describe such limitation within the > firmware. There are no format restrictions if the property isn't > present, so it's completely backward compatible. > > Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> > Reviewed-by: Rob Herring <robh@kernel.org> > --- > [1] https://patchwork.kernel.org/cover/10794703/ > > v6: > - tvnorms.h: use tabs instead of spaces > - tvnorms.h: add TVNORM_PAL and TVNORM_SECAM > - tvnorms.h: drop rarely used TVNORM_ATSC_* norms > > v2-v4: > - nothing since the patch was squashed from series [1] into this > series. > > .../display/connector/analog-tv-connector.txt | 4 ++ > include/dt-bindings/media/tvnorms.h | 56 +++++++++++++++++++ > 2 files changed, 60 insertions(+) > create mode 100644 include/dt-bindings/media/tvnorms.h > > diff --git a/Documentation/devicetree/bindings/display/connector/analog-tv-connector.txt b/Documentation/devicetree/bindings/display/connector/analog-tv-connector.txt > index 0c0970c210ab..346f8937a0b7 100644 > --- a/Documentation/devicetree/bindings/display/connector/analog-tv-connector.txt > +++ b/Documentation/devicetree/bindings/display/connector/analog-tv-connector.txt > @@ -6,6 +6,9 @@ Required properties: > > Optional properties: > - label: a symbolic name for the connector > +- tvnorms: limit the supported tv norms on a connector to the given ones else > + all tv norms are allowed. Possible video standards are defined in > + include/dt-bindings/media/tvnorms.h. > > Required nodes: > - Video port for TV input > @@ -16,6 +19,7 @@ Example > tv: connector { > compatible = "composite-video-connector"; > label = "tv"; > + tvnorms = <(TVNORM_PAL_M | TVNORM_NTSC_M)>; > > port { > tv_connector_in: endpoint { > diff --git a/include/dt-bindings/media/tvnorms.h b/include/dt-bindings/media/tvnorms.h > new file mode 100644 > index 000000000000..058ab8414145 > --- /dev/null > +++ b/include/dt-bindings/media/tvnorms.h > @@ -0,0 +1,56 @@ > +/* SPDX-License-Identifier: GPL-2.0-only or X11 */ > +/* > + * Copyright 2019 Pengutronix, Marco Felsch <kernel@pengutronix.de> > + */ > + > +#ifndef _DT_BINDINGS_MEDIA_TVNORMS_H > +#define _DT_BINDINGS_MEDIA_TVNORMS_H > + > +/* one bit for each */ > +#define TVNORM_PAL_B 0x00000001 > +#define TVNORM_PAL_B1 0x00000002 > +#define TVNORM_PAL_G 0x00000004 > +#define TVNORM_PAL_H 0x00000008 > +#define TVNORM_PAL_I 0x00000010 > +#define TVNORM_PAL_D 0x00000020 > +#define TVNORM_PAL_D1 0x00000040 > +#define TVNORM_PAL_K 0x00000080 > + > +#define TVNORM_PAL (TVNORM_PAL_B | \ > + TVNORM_PAL_B1 | \ > + TVNORM_PAL_G | \ > + TVNORM_PAL_H | \ > + TVNORM_PAL_I | \ > + TVNORM_PAL_D | \ > + TVNORM_PAL_D1 | \ > + TVNORM_PAL_K) > + > +#define TVNORM_PAL_M 0x00000100 > +#define TVNORM_PAL_N 0x00000200 > +#define TVNORM_PAL_Nc 0x00000400 > +#define TVNORM_PAL_60 0x00000800 > + > +#define TVNORM_NTSC_M 0x00001000 /* BTSC */ > +#define TVNORM_NTSC_M_JP 0x00002000 /* EIA-J */ > +#define TVNORM_NTSC_443 0x00004000 > +#define TVNORM_NTSC_M_KR 0x00008000 /* FM A2 */ > + > +#define TVNORM_SECAM_B 0x00010000 > +#define TVNORM_SECAM_D 0x00020000 > +#define TVNORM_SECAM_G 0x00040000 > +#define TVNORM_SECAM_H 0x00080000 > +#define TVNORM_SECAM_K 0x00100000 > +#define TVNORM_SECAM_K1 0x00200000 > +#define TVNORM_SECAM_L 0x00400000 > +#define TVNORM_SECAM_LC 0x00800000 > + > +#define TVNORM_SECAM (TVNORM_SECAM_B | \ > + TVNORM_SECAM_D | \ > + TVNORM_SECAM_G | \ > + TVNORM_SECAM_H | \ > + TVNORM_SECAM_K | \ > + TVNORM_SECAM_K1 | \ > + TVNORM_SECAM_L | \ > + TVNORM_SECAM_LC) > + > +#endif /* _DT_BINDINGS_MEDIA_TVNORMS_H */ >
next prev parent reply index Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-04-15 12:44 [PATCH v6 00/13] TVP5150 new features Marco Felsch 2019-04-15 12:44 ` [PATCH v6 01/13] dt-bindings: connector: analog: add tv norms property Marco Felsch 2019-05-06 10:01 ` Hans Verkuil [this message] 2019-05-06 10:06 ` Hans Verkuil 2019-05-14 18:11 ` Mauro Carvalho Chehab 2019-08-09 6:00 ` Marco Felsch 2019-05-16 16:27 ` Laurent Pinchart 2019-08-09 5:58 ` Marco Felsch 2019-08-15 12:33 ` Laurent Pinchart 2019-08-15 12:50 ` Marco Felsch 2019-08-15 13:02 ` Laurent Pinchart 2019-08-15 13:35 ` Marco Felsch 2019-04-15 12:44 ` [PATCH v6 02/13] media: v4l2-fwnode: add v4l2_fwnode_connector Marco Felsch 2019-05-06 9:50 ` Hans Verkuil 2019-05-14 18:17 ` Mauro Carvalho Chehab 2019-08-09 7:20 ` Marco Felsch 2019-05-16 16:36 ` Laurent Pinchart 2019-08-09 7:55 ` Marco Felsch 2019-08-15 12:38 ` Laurent Pinchart 2019-08-15 13:04 ` Marco Felsch 2019-08-15 13:10 ` Laurent Pinchart 2019-08-15 13:37 ` Marco Felsch 2019-04-15 12:44 ` [PATCH v6 03/13] media: v4l2-fwnode: add initial connector parsing support Marco Felsch 2019-05-06 10:10 ` Hans Verkuil 2019-05-14 18:20 ` Mauro Carvalho Chehab 2019-05-16 16:51 ` Laurent Pinchart 2019-08-09 12:16 ` Marco Felsch 2019-08-15 12:48 ` Laurent Pinchart 2019-08-15 13:14 ` Marco Felsch 2019-08-09 8:59 ` Marco Felsch 2019-04-15 12:44 ` [PATCH v6 04/13] partial revert of "[media] tvp5150: add HW input connectors support" Marco Felsch 2019-04-15 12:44 ` [PATCH v6 05/13] media: tvp5150: add input source selection of_graph support Marco Felsch 2019-05-06 10:09 ` Jacopo Mondi 2019-05-14 18:25 ` Mauro Carvalho Chehab 2019-05-16 18:03 ` Laurent Pinchart 2019-08-13 8:54 ` Marco Felsch 2019-08-15 12:51 ` Laurent Pinchart 2019-08-15 13:22 ` Marco Felsch 2019-08-15 13:26 ` Laurent Pinchart 2019-04-15 12:44 ` [PATCH v6 06/13] media: dt-bindings: tvp5150: Add input port connectors DT bindings Marco Felsch 2019-05-14 18:27 ` Mauro Carvalho Chehab 2019-05-16 18:05 ` Laurent Pinchart 2019-08-13 8:56 ` Marco Felsch 2019-04-15 12:44 ` [PATCH v6 07/13] media: tvp5150: add FORMAT_TRY support for get/set selection handlers Marco Felsch 2019-05-06 13:36 ` Jacopo Mondi 2019-08-09 5:33 ` Marco Felsch 2019-05-14 18:48 ` Mauro Carvalho Chehab 2019-08-09 5:34 ` Marco Felsch 2019-04-15 12:44 ` [PATCH v6 08/13] media: tvp5150: initialize subdev before parsing device tree Marco Felsch 2019-05-14 20:20 ` Mauro Carvalho Chehab 2019-08-09 5:42 ` Marco Felsch 2019-04-15 12:44 ` [PATCH v6 09/13] media: tvp5150: add s_power callback Marco Felsch 2019-05-14 20:13 ` Mauro Carvalho Chehab 2019-08-09 5:39 ` Marco Felsch 2019-04-15 12:44 ` [PATCH v6 10/13] media: dt-bindings: tvp5150: cleanup bindings stlye Marco Felsch 2019-04-15 12:44 ` [PATCH v6 11/13] media: dt-bindings: tvp5150: add optional tvnorms documentation Marco Felsch 2019-04-15 12:44 ` [PATCH v6 12/13] media: tvp5150: add support to limit tv norms on connector Marco Felsch 2019-05-16 18:07 ` Laurent Pinchart 2019-08-13 9:10 ` Marco Felsch 2019-08-15 12:53 ` Laurent Pinchart 2019-08-15 13:26 ` Marco Felsch 2019-04-15 12:44 ` [PATCH v6 13/13] media: tvp5150: make debug output more readable Marco Felsch 2019-05-06 13:39 ` Jacopo Mondi 2019-05-14 20:18 ` Mauro Carvalho Chehab 2019-08-09 5:42 ` Marco Felsch 2019-05-06 5:47 ` [PATCH v6 00/13] TVP5150 new features Marco Felsch 2019-05-14 17:18 ` Mauro Carvalho Chehab 2019-05-14 20:20 ` Mauro Carvalho Chehab 2019-05-14 20:58 ` Marco Felsch 2019-05-14 23:41 ` Mauro Carvalho Chehab
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