[PATCH 2/2] Documentation: cs35l41: Shared boost properties

Lucas Tanure
2023-02-07T10:41:15Z

Describe the properties used for shared boost
configuration.

Signed-off-by: Lucas Tanure <lucas.tanure@collabora.com>
---
.../devicetree/bindings/sound/cirrus,cs35l41.yaml | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml
index 18fb471aa891..6f5f01bec6f1 100644
--- a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml
+++ b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml
@@ -85,11 +85,20 @@ properties:
boost-cap-microfarad.
External Boost must have GPIO1 as GPIO output. GPIO1 will be set high to
enable boost voltage.
+ Shared boost allows two amplifiers to share a single boost circuit by
+ communicating on the MDSYNC bus. The passive amplifier does not control
+ the boost and receives data from the active amplifier. GPIO1 should be
+ configured for Sync when shared boost is used. Shared boost is not
+ compatible with External boost. Active amplifier requires
+ boost-peak-milliamp, boost-ind-nanohenry and boost-cap-microfarad.
0 = Internal Boost
1 = External Boost
+ 2 = Reserved
+ 3 = Shared Boost Active
+ 4 = Shared Boost Passive
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
- maximum: 1
+ maximum: 4

cirrus,gpio1-polarity-invert:
description:
--
2.39.1