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authorCharles Keepax <ckeepax@opensource.wolfsonmicro.com>2017-04-06 13:52:14 +0100
committerMark Brown <broonie@kernel.org>2017-04-06 19:27:59 +0100
commit0c67fb5544061cb990e07a73e1b7ba1f8ca22479 (patch)
treee773deea11bffc3e10abbd047c415e568f344fb9 /Documentation/devicetree/bindings/sound
parent77b329d1943d38a5acdbaf9d57754975bce701d4 (diff)
ASoC: cs35l35: Add DT binding to specify usage of an external boost supply
Add a device tree binding to let the driver know that the amplifier is configured to use an external boost supply. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Brian Austin <brian.austin@cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/sound')
-rw-r--r--Documentation/devicetree/bindings/sound/cs35l35.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/cs35l35.txt b/Documentation/devicetree/bindings/sound/cs35l35.txt
index 958f0eabfdfc..457d176dcee0 100644
--- a/Documentation/devicetree/bindings/sound/cs35l35.txt
+++ b/Documentation/devicetree/bindings/sound/cs35l35.txt
@@ -33,6 +33,10 @@ Optional properties:
- cirrus,shared-boost : Boolean to enable ClassH tracking of Advisory Signal
if 2 Devices share Boost BST_CTL
+ - cirrus,external-boost : Boolean to specify the device is using an external
+ boost supply, note that sharing a boost from another cs35l35 would constitute
+ using an external supply for the slave device
+
- cirrus,sp-drv-strength : Value for setting the Serial Port drive strength
Table 3-10 of the datasheet lists drive-strength specifications
0 = 1x (Default)