The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/reset/st,stih407-powerdown.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/reset/st,stih407-powerdown.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: STMicroelectronics STi family Sysconfig Peripheral Powerdown Reset Controller
    8 
    9 maintainers:
   10   - Srinivas Kandagatla <srinivas.kandagatla@st.com>
   11 
   12 description: |
   13   This binding describes a reset controller device that is used to enable and
   14   disable on-chip peripheral controllers such as USB and SATA, using
   15   "powerdown" control bits found in the STi family SoC system configuration
   16   registers. These have been grouped together into a single reset controller
   17   device for convenience.
   18 
   19   The actual action taken when powerdown is asserted is hardware dependent.
   20   However, when asserted it may not be possible to access the hardware's
   21   registers and after an assert/deassert sequence the hardware's previous state
   22   may no longer be valid.
   23 
   24 properties:
   25   compatible:
   26     const: st,stih407-powerdown
   27 
   28   '#reset-cells':
   29     const: 1
   30 
   31 required:
   32   - compatible
   33   - '#reset-cells'
   34 
   35 additionalProperties: false
   36 
   37 examples:
   38   - |
   39     #include <dt-bindings/reset/stih407-resets.h>
   40 
   41     powerdown: powerdown-controller {
   42         compatible = "st,stih407-powerdown";
   43         #reset-cells = <1>;
   44     };
   45 
   46     // Specifying powerdown control of devices:
   47     st_dwc3: dwc3 {
   48         resets = <&powerdown STIH407_USB3_POWERDOWN>;
   49     };

Cache object: d13104a426da6e305c3e29e8090f8087

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