From 2ca065dc9468fa1c60ada1e8cb9c1aa866367ec7 Mon Sep 17 00:00:00 2001
From: Philipp Zabel
Date: Thu, 7 Apr 2022 17:43:37 +0200
Subject: dt-bindings: reset: st,sti-powerdown: Convert to yaml
Convert the device tree bindings for the STMicroelectronics STi
Peripheral Powerdown reset controller to YAML schema to allow
participating in DT validation.
Signed-off-by: Philipp Zabel
Cc: Srinivas Kandagatla
Reviewed-by: Rob Herring
Link: https://lore.kernel.org/r/20220407154338.4190674-13-p.zabel@pengutronix.de
---
.../bindings/reset/st,stih407-powerdown.yaml | 49 ++++++++++++++++++++++
1 file changed, 49 insertions(+)
create mode 100644 Documentation/devicetree/bindings/reset/st,stih407-powerdown.yaml
(limited to 'Documentation/devicetree/bindings/reset/st,stih407-powerdown.yaml')
diff --git a/Documentation/devicetree/bindings/reset/st,stih407-powerdown.yaml b/Documentation/devicetree/bindings/reset/st,stih407-powerdown.yaml
new file mode 100644
index 000000000000..d3790e602659
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/st,stih407-powerdown.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/st,stih407-powerdown.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STi family Sysconfig Peripheral Powerdown Reset Controller
+
+maintainers:
+ - Srinivas Kandagatla
+
+description: |
+ This binding describes a reset controller device that is used to enable and
+ disable on-chip peripheral controllers such as USB and SATA, using
+ "powerdown" control bits found in the STi family SoC system configuration
+ registers. These have been grouped together into a single reset controller
+ device for convenience.
+
+ The actual action taken when powerdown is asserted is hardware dependent.
+ However, when asserted it may not be possible to access the hardware's
+ registers and after an assert/deassert sequence the hardware's previous state
+ may no longer be valid.
+
+properties:
+ compatible:
+ const: st,stih407-powerdown
+
+ '#reset-cells':
+ const: 1
+
+required:
+ - compatible
+ - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include
+
+ powerdown: powerdown-controller {
+ compatible = "st,stih407-powerdown";
+ #reset-cells = <1>;
+ };
+
+ // Specifying powerdown control of devices:
+ st_dwc3: dwc3 {
+ resets = <&powerdown STIH407_USB3_POWERDOWN>;
+ };
--
cgit v1.2.3-59-g8ed1b