linux-kernel - [PATCH v2 4/7] ASoC: dt-bindings: Document dl-mask property

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Date:   Sun, 28 Jul 2019 22:24:26 +0300
From:   Daniel Baluta <daniel.baluta@....com>
To:     broonie@...nel.org
Cc:     l.stach@...gutronix.de, mihai.serban@...il.com,
        alsa-devel@...a-project.org, viorel.suman@....com,
        timur@...nel.org, shengjiu.wang@....com, angus@...ea.ca,
        tiwai@...e.com, nicoleotsuka@...il.com, linux-imx@....com,
        kernel@...gutronix.de, festevam@...il.com,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        robh@...nel.org, Daniel Baluta <daniel.baluta@....com>
Subject: [PATCH v2 4/7] ASoC: dt-bindings: Document dl-mask property

SAI supports up to 8 data lines. This property let the user
configure how many data lines should be used per transfer
direction (Tx/Rx).

Signed-off-by: Daniel Baluta <daniel.baluta@....com>
---
 Documentation/devicetree/bindings/sound/fsl-sai.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/fsl-sai.txt b/Documentation/devicetree/bindings/sound/fsl-sai.txt
index 2e726b983845..2b38036a4883 100644
--- a/Documentation/devicetree/bindings/sound/fsl-sai.txt
+++ b/Documentation/devicetree/bindings/sound/fsl-sai.txt
@@ -49,6 +49,13 @@ Optional properties:
 
   - big-endian		: Boolean property, required if all the SAI
 			  registers are big-endian rather than little-endian.
+  - fsl,dl-mask		: list of two integers (bitmask, first for RX, second
+			  for TX) representing enabled datalines. Bit 0
+			  represents first data line, bit 1 represents second
+			  data line and so on. Data line is enabled if
+			  corresponding bit is set to 1. By default, if property
+			  not present, only dataline 0 is enabled for both
+			  directions.
 
 Optional properties (for mx6ul):
 
-- 
2.17.1