linux-kernel - [PATCH 4/5] mfd: arizona: Add DT binding documentation for DMIC references

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Message-Id: <1425135268-32340-4-git-send-email-ckeepax@opensource.wolfsonmicro.com>
Date:	Sat, 28 Feb 2015 14:54:27 +0000
From:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
To:	lee@...nel.org
Cc:	sameo@...ux.intel.com, robh+dt@...nel.org, mark.rutland@....com,
	galak@...eaurora.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, patches@...nsource.wolfsonmicro.com
Subject: [PATCH 4/5] mfd: arizona: Add DT binding documentation for DMIC references

Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
---
 Documentation/devicetree/bindings/mfd/arizona.txt |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/arizona.txt b/Documentation/devicetree/bindings/mfd/arizona.txt
index 7ca7c1f..8709f07 100644
--- a/Documentation/devicetree/bindings/mfd/arizona.txt
+++ b/Documentation/devicetree/bindings/mfd/arizona.txt
@@ -54,6 +54,12 @@ Optional properties:
     input singals. If values less than the number of input signals, elements
     that has not been specifed are set to 0 by default.
 
+  - wlf,dmic-ref : DMIC reference for each input, can be selected from either
+    MICVDD or one of the MICBIAS's, defines (ARIZONA_DMIC_xxxx) are provided
+    in <dt-bindings/mfd/arizona.txt>. If present, the number of values should
+    be less than or equal to the number of inputs, unspecified inputs will
+    use the chip default.
+
   - DCVDD-supply, MICVDD-supply : Power supplies, only need to be specified if
     they are being externally supplied. As covered in
     Documentation/devicetree/bindings/regulator/regulator.txt
-- 
1.7.2.5

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