This patch adds a binding to guide the remoteproc core on how to deal with remote processors in two cases: 1) When an application holding a reference to a remote processor character device interface crashes. 2) when the platform driver for a remote processor is removed. In both cases if "autonomous-on-core-reboot" is specified in the remote processor DT node, the remoteproc core will detach the remote processor rather than switching it off. Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> --- .../bindings/remoteproc/remoteproc-core.yaml | 25 +++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml diff --git a/Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml b/Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml new file mode 100644 index 000000000000..3032734f42a3 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/remoteproc-core.yaml @@ -0,0 +1,25 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/remoteproc/remoteproc-core.yaml#"; +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; + +title: Binding for the remoteproc core applicable to all remote processors + +maintainers: + - Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> + - Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> + +description: + This document defines the binding recognised by the remoteproc core that can + be used by any remote processor in the subsystem. + +properties: + autonomous-on-core-reboot: + $ref: /schemas/types.yaml#/definitions/flag + description: + Used in two situations, i.e when a user space application releases the + handle it has on the remote processor's character driver interface and + when a remote processor's platform driver is being removed. If defined, + this flag instructs the remoteproc core to detach the remote processor + rather than turning it off. -- 2.25.1
