From 0c67fb5544061cb990e07a73e1b7ba1f8ca22479 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Thu, 6 Apr 2017 13:52:14 +0100 Subject: [PATCH] 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 Acked-by: Brian Austin Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/cs35l35.txt | 4 ++++ 1 file changed, 4 insertions(+) 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) -- 2.20.1