On Mon, Mar 12, 2018 at 04:57:51PM +0100, codekipper@xxxxxxxxx wrote: > From: Marcus Cooper <codekipper@xxxxxxxxx> > > The i2s block supports multi-lane i2s output however this functionality > is only possible in earlier SoCs where the pins are exposed and for > the i2s block used for HDMI audio on the later SoCs. > > To enable this functionality, an optional property has been added to > the bindings. > > Signed-off-by: Marcus Cooper <codekipper@xxxxxxxxx> > --- > .../devicetree/bindings/sound/sun4i-i2s.txt | 3 ++ > sound/soc/sunxi/sun4i-i2s.c | 48 +++++++++++++++++----- > 2 files changed, 41 insertions(+), 10 deletions(-) > > diff --git a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt > index 48addef65b8f..3f966ac61b9e 100644 > --- a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt > +++ b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt > @@ -33,6 +33,9 @@ Optional properties: > configured to extend the slot width to the > value specified. Min 8, Max 32. > > +- allwinner,playback-channels: if this property is present then the number > + of available channels is extended and the > + outputs enabled. Isn't it something that is fixed for each generation of SoCs? Can't we attach it to the compatible? Maxime -- Maxime Ripard, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com
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