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SubjectRe: [PATCH v2 4/6] ASoC: sun4i-i2s: Add multi-lane functionality
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 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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