linux-kernel - [PATCH v6 2/7] ASoC: dt-bindings: fsl_asrc: Add new property fsl,asrc-format

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Date:   Wed,  1 Apr 2020 16:45:35 +0800
From:   Shengjiu Wang <shengjiu.wang@....com>
To:     timur@...nel.org, nicoleotsuka@...il.com, Xiubo.Lee@...il.com,
        festevam@...il.com, broonie@...nel.org,
        alsa-devel@...a-project.org, lgirdwood@...il.com, perex@...ex.cz,
        tiwai@...e.com, robh+dt@...nel.org, mark.rutland@....com,
        devicetree@...r.kernel.org
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH v6 2/7] ASoC: dt-bindings: fsl_asrc: Add new property fsl,asrc-format

In order to support new EASRC and simplify the code structure,
We decide to share the common structure between them. This bring
a problem that EASRC accept format directly from devicetree, but
ASRC accept width from devicetree.

In order to align with new ESARC, we add new property fsl,asrc-format.
The fsl,asrc-format can replace the fsl,asrc-width, then driver
can accept format from devicetree, don't need to convert it to
format through width.

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
 Documentation/devicetree/bindings/sound/fsl,asrc.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/fsl,asrc.txt b/Documentation/devicetree/bindings/sound/fsl,asrc.txt
index cb9a25165503..998b4c8a7f78 100644
--- a/Documentation/devicetree/bindings/sound/fsl,asrc.txt
+++ b/Documentation/devicetree/bindings/sound/fsl,asrc.txt
@@ -51,6 +51,10 @@ Optional properties:
 			  will be in use as default. Otherwise, the big endian
 			  mode will be in use for all the device registers.
 
+   - fsl,asrc-format	: Defines a mutual sample format used by DPCM Back
+			  Ends, which can replace the fsl,asrc-width.
+			  The value is 2 (S16_LE), or 6 (S24_LE).
+
 Example:
 
 asrc: asrc@...4000 {
-- 
2.21.0