linux-kernel - [PATCH v3 2/2] dt-bindings: sound: gtm601: add the broadmobi interface

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Message-Id: <20191219210944.18256-3-angus@akkea.ca>
Date:   Thu, 19 Dec 2019 13:09:44 -0800
From:   "Angus Ainslie (Purism)" <angus@...ea.ca>
To:     broonie@...nel.org
Cc:     kernel@...i.sm, Liam Girdwood <lgirdwood@...il.com>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        "Angus Ainslie (Purism)" <angus@...ea.ca>
Subject: [PATCH v3 2/2] dt-bindings: sound: gtm601: add the broadmobi interface

The Broadmobi BM818 uses a different sample rate and channels from the
option modem.

Signed-off-by: Angus Ainslie (Purism) <angus@...ea.ca>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 Documentation/devicetree/bindings/sound/gtm601.txt | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/gtm601.txt b/Documentation/devicetree/bindings/sound/gtm601.txt
index 5efc8c068de0..efa32a486c4a 100644
--- a/Documentation/devicetree/bindings/sound/gtm601.txt
+++ b/Documentation/devicetree/bindings/sound/gtm601.txt
@@ -1,10 +1,16 @@
 GTM601 UMTS modem audio interface CODEC
 
-This device has no configuration interface. Sample rate is fixed - 8kHz.
+This device has no configuration interface. The sample rate and channels are
+based on the compatible string
+	"option,gtm601" = 8kHz mono
+	"broadmobi,bm818" = 48KHz stereo
 
 Required properties:
 
-  - compatible : "option,gtm601"
+  - compatible : one of
+	"option,gtm601"
+	"broadmobi,bm818"
+
 
 Example:
 
-- 
2.17.1