On Mon, Mar 12, 2018 at 04:57:51PM +0100, codekipper@gmail.com wrote:
From: Marcus Cooper codekipper@gmail.com
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@gmail.com
.../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 theoutputs enabled.
Isn't it something that is fixed for each generation of SoCs? Can't we attach it to the compatible?
Maxime