[PATCH v2 4/5] ASoC: cs35l41: Document CS35l41 external boost without VSPK

[Lucas Tanure <lucas.tanure@xxxxxxxxxxxxx>]

External Boost without GPIO1 as VSPK switch
is no longer supported, but there is laptop
models using this feature.

Signed-off-by: Lucas Tanure <lucas.tanure@xxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml
index 18fb471aa891..8465623bbd96 100644
--- a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml
+++ b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml
@@ -85,11 +85,13 @@ properties:
       boost-cap-microfarad.
       External Boost must have GPIO1 as GPIO output. GPIO1 will be set high to
       enable boost voltage.
+      External Boost without GPIO1 as VSPK switch is no longer supported.
       0 = Internal Boost
       1 = External Boost
+      2 = External Boost without VPSK switch (Do not use in new systems)
     $ref: /schemas/types.yaml#/definitions/uint32
     minimum: 0
-    maximum: 1
+    maximum: 2
 
   cirrus,gpio1-polarity-invert:
     description:
-- 
2.39.1