[PATCH v7 08/17] remoteproc: Add new detach() remoteproc operation
From: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: 2021-03-10 21:11:34
Also in:
linux-remoteproc, lkml
Subsystem:
remote processor (remoteproc) subsystem, the rest · Maintainers:
Bjorn Andersson, Mathieu Poirier, Linus Torvalds
Add an new detach() operation in order to support scenarios where the remoteproc core is going away but the remote processor is kept operating. This could be the case when the system is rebooted or when the platform driver is removed. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Arnaud Pouliquen <redacted> --- include/linux/remoteproc.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index 51538a7d120d..eff55ec72e80 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h@@ -361,6 +361,7 @@ enum rsc_handling_status { * @start: power on the device and boot it * @stop: power off the device * @attach: attach to a device that his already powered up + * @detach: detach from a device, leaving it powered up * @kick: kick a virtqueue (virtqueue id given as a parameter) * @da_to_va: optional platform hook to perform address translations * @parse_fw: parse firmware to extract information (e.g. resource table)
@@ -385,6 +386,7 @@ struct rproc_ops { int (*start)(struct rproc *rproc); int (*stop)(struct rproc *rproc); int (*attach)(struct rproc *rproc); + int (*detach)(struct rproc *rproc); void (*kick)(struct rproc *rproc, int vqid); void * (*da_to_va)(struct rproc *rproc, u64 da, size_t len); int (*parse_fw)(struct rproc *rproc, const struct firmware *fw);
--
2.25.1
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