[PATCH v2 1/2] dt-bindings: iio: sx9324: Add CS idle/sleep mode

From: Stephen Boyd
Date: Tue May 03 2022 - 15:39:50 EST


We need to configure the sleep and idle mode of the CS pins for this
device. Add a DT property to do this so pins are in a proper state
during sleep (either hi-z, grounded, or pulled up to vdd).

Reviewed-by: Gwendal Grignou <gwendal@xxxxxxxxxxxx>
Signed-off-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
---
.../bindings/iio/proximity/semtech,sx9324.yaml | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
index d265eb5258c8..b3aa2ebf9661 100644
--- a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
+++ b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
@@ -126,6 +126,14 @@ properties:
UINT_MAX (4294967295) represents infinite. Other values
represent 1-1/N.

+ semtech,cs-idle-sleep:
+ description:
+ State of CS pins during sleep mode and idle time.
+ enum:
+ - hi-z
+ - gnd
+ - vdd
+
semtech,int-comp-resistor:
description:
Internal resistor setting for compensation.
@@ -187,5 +195,6 @@ examples:
semtech,avg-pos-strength = <64>;
semtech,int-comp-resistor = "lowest";
semtech,input-precharge-resistor-ohms = <2000>;
+ semtech,cs-idle-sleep = "gnd";
};
};
--
https://chromeos.dev