On Wed, Oct 11, 2017 at 09:45:04PM -0700, Tim Harvey wrote: > Cc: Rob Herring <robh@xxxxxxxxxx> > Signed-off-by: Tim Harvey <tharvey@xxxxxxxxxxxxx> > --- > v2: > - add vendor prefix and remove _ from vidout-portcfg > - remove _ from labels > - remove max-pixel-rate property > - describe and provide example for single output port > - use new audio port bindings > > --- > .../devicetree/bindings/media/i2c/tda1997x.txt | 179 +++++++++++++++++++++ > 1 file changed, 179 insertions(+) > create mode 100644 Documentation/devicetree/bindings/media/i2c/tda1997x.txt > > diff --git a/Documentation/devicetree/bindings/media/i2c/tda1997x.txt b/Documentation/devicetree/bindings/media/i2c/tda1997x.txt > new file mode 100644 > index 0000000..269d7f0 > --- /dev/null > +++ b/Documentation/devicetree/bindings/media/i2c/tda1997x.txt > @@ -0,0 +1,179 @@ > +Device-Tree bindings for the NXP TDA1997x HDMI receiver > + > +The TDA19971/73 are HDMI video receivers. > + > +The TDA19971 Video port output pins can be used as follows: > + - RGB 8bit per color (24 bits total): R[11:4] B[11:4] G[11:4] > + - YUV444 8bit per color (24 bits total): Y[11:4] Cr[11:4] Cb[11:4] > + - YUV422 semi-planar 8bit per component (16 bits total): Y[11:4] CbCr[11:4] > + - YUV422 semi-planar 10bit per component (20 bits total): Y[11:2] CbCr[11:2] > + - YUV422 semi-planar 12bit per component (24 bits total): - Y[11:0] CbCr[11:0] > + - YUV422 BT656 8bit per component (8 bits total): YCbCr[11:4] (2-cycles) > + - YUV422 BT656 10bit per component (10 bits total): YCbCr[11:2] (2-cycles) > + - YUV422 BT656 12bit per component (12 bits total): YCbCr[11:0] (2-cycles) > + > +The TDA19973 Video port output pins can be used as follows: > + - RGB 12bit per color (36 bits total): R[11:0] B[11:0] G[11:0] > + - YUV444 12bit per color (36 bits total): Y[11:0] Cb[11:0] Cr[11:0] > + - YUV422 semi-planar 12bit per component (24 bits total): Y[11:0] CbCr[11:0] > + - YUV422 BT656 12bit per component (12 bits total): YCbCr[11:0] (2-cycles) > + > +The Video port output pins are mapped via 4-bit 'pin groups' allowing > +for a variety fo connection possibilities including swapping pin order within s/fo /of / > +pin groups. The video_portcfg device-tree property consists of register mapping > +pairs which map a chip-specific VP output register to a 4-bit pin group. If > +the pin group needs to be bit-swapped you can use the *_S pin-group defines. The rest of the binding looks fine, but I have some reservations about this. I think this should be common probably. There's been a few bindings for display recently that deal with the interface format. Maybe some vendor property is needed here to map a standard interface format back to pin configuration. Rob
