On Thu, 18 Feb 2016 08:35:30 -0600 Rob Herring <robh@xxxxxxxxxx> wrote: > On Wed, Feb 17, 2016 at 04:49:05PM +0200, Jyri Sarha wrote: > > From: Jean-Francois Moine <moinejf@xxxxxxx> > > > > Two kinds of ports may be declared in a DT graph of ports: video and audio. > > This patch accepts the port value from a video port as an alternative > > to the video-ports property. > > It also accepts audio ports in the case the transmitter is not used as > > a slave encoder. > > The new file include/sound/tda998x.h prepares to the definition of > > a tda998x CODEC. > > > > Signed-off-by: Jean-Francois Moine <moinejf@xxxxxxx> > > Signed-off-by: Jyri Sarha <jsarha@xxxxxx> > > --- > > .../devicetree/bindings/display/bridge/tda998x.txt | 51 ++++++++++++ > > drivers/gpu/drm/i2c/tda998x_drv.c | 90 +++++++++++++++++++--- > > include/sound/tda998x.h | 8 ++ > > 3 files changed, 140 insertions(+), 9 deletions(-) > > create mode 100644 include/sound/tda998x.h > > > > diff --git a/Documentation/devicetree/bindings/display/bridge/tda998x.txt b/Documentation/devicetree/bindings/display/bridge/tda998x.txt > > index e9e4bce..35f6a80 100644 > > --- a/Documentation/devicetree/bindings/display/bridge/tda998x.txt > > +++ b/Documentation/devicetree/bindings/display/bridge/tda998x.txt > > @@ -16,6 +16,35 @@ Optional properties: > > > > - video-ports: 24 bits value which defines how the video controller > > output is wired to the TDA998x input - default: <0x230145> > > + This property is not used when ports are defined. > > + > > +Optional nodes: > > + > > + - port: up to three ports. > > + The ports are defined according to [1]. > > + > > + Video port. > > + There may be only one video port. > > + This one must contain the following property: > > + > > + - port-type: must be "rgb" > > This should be implied from the port unit address. In other words, > port@0 is defined to be the rgb port. Now, if this is one of several > modes for the video port, then that is a different story. > > > + and may contain the optional property: > > + > > + - reg: 24 bits value which defines how the video controller > > + output is wired to the TDA998x input (video pins) > > + When absent, the default value is <0x230145>. > > This is not really how reg is intended to be used. Can you explain how > this value is determined? > > > + Audio ports. > > + There may be one or two audio ports. > > + These ones must contain the following properties: > > + > > + - port-type: must be "i2s" or "spdif" > > + > > + - reg: 8 bits value which defines how the audio controller > > + output is wired to the TDA998x input (audio pins) > > Same here. Hi Rob, These audio/video port definitions were discussed in the thread http://mailman.alsa-project.org/pipermail/alsa-devel/2015-August/095836.html but, you are right, and as you already said in the thread https://lists.freedesktop.org/archives/dri-devel/2015-September/090544.html 'reg' should not be used here. I would have changed to 'port-value', but as I will not update the kernel of my Dove Cubox anymore, I will not propose a new version of this patch (and, sorry Jyri, I will not test your patch series). -- Ken ar c'hentañ | ** Breizh ha Linux atav! ** Jef | http://moinejf.free.fr/ -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
