From b2527dcd65b3e141e9363af5b256aa484bd4c06f Mon Sep 17 00:00:00 2001 From: Sugar Zhang Date: Fri, 3 Sep 2021 21:23:57 +0800 Subject: [PATCH] ASoC: dt-bindings: rockchip: pdm: Document property 'rockchip,path-map' This is an optional property to describe data path mapping. Signed-off-by: Sugar Zhang Acked-by: Rob Herring Link: https://lore.kernel.org/r/1630675438-3418-1-git-send-email-sugar.zhang@rock-chips.com Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/rockchip,pdm.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/rockchip,pdm.txt b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt index 54d94438ba6c..b2d7e47a3e46 100644 --- a/Documentation/devicetree/bindings/sound/rockchip,pdm.txt +++ b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt @@ -24,6 +24,22 @@ Required properties: pinctrl-names. See ../pinctrl/pinctrl-bindings.txt for details of the property values. +Optional properties: +- rockchip,path-map: This is a variable length array, that shows the mapping + of SDIx to PATHx. By default, they are one-to-one mapping as follows: + + path0 <-- sdi0 + path1 <-- sdi1 + path2 <-- sdi2 + path3 <-- sdi3 + + e.g. "rockchip,path-map = <3 2 1 0>" means the mapping as follows: + + path0 <-- sdi3 + path1 <-- sdi2 + path2 <-- sdi1 + path3 <-- sdi0 + Example for rk3328 PDM controller: pdm: pdm@ff040000 { -- 2.11.0