lkml.org 
[lkml]   [2020]   [Aug]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 05/13] remoteproc: Add new detach() remoteproc operation
    Date
    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>
    ---
    include/linux/remoteproc.h | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
    index fe383392a821..1a57e165da2c 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: tell the remote processor that the core is going away
    * @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)
    @@ -382,6 +383,7 @@ 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
    \
     
     \ /
      Last update: 2020-08-26 18:47    [W:3.101 / U:0.348 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site