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authorSascha Hauer <s.hauer@pengutronix.de>2022-06-08 09:15:32 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2022-06-08 10:41:39 +0200
commite54923b76e345080b73f3ae7f508657e5c63a9eb (patch)
tree8ea04209dd330c4a1257efade74fdda32bc7bb62 /dts/Bindings/reset/st,stih407-powerdown.yaml
parentd4fd877cc4c6439a806f9c5f1b8c561605ee1167 (diff)
downloadbarebox-e54923b76e345080b73f3ae7f508657e5c63a9eb.tar.gz
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dts: update to v5.19-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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+# 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 <srinivas.kandagatla@st.com>
+
+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 <dt-bindings/reset/stih407-resets.h>
+
+ powerdown: powerdown-controller {
+ compatible = "st,stih407-powerdown";
+ #reset-cells = <1>;
+ };
+
+ // Specifying powerdown control of devices:
+ st_dwc3: dwc3 {
+ resets = <&powerdown STIH407_USB3_POWERDOWN>;
+ };