diff options
| author | Siddharth Gupta <sidgup@codeaurora.org> | 2020-07-29 10:40:01 -0700 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2020-08-04 20:17:08 -0700 |
| commit | 62b8f9e99329c92286534d05dac9dc0a6e0ba0cf (patch) | |
| tree | 0c8c49f46887f4176c532488f00b5b64037d658c /drivers/remoteproc | |
| parent | 4476770881d7ac647e3bcae0943f37e00b9c3f3c (diff) | |
remoteproc: core: Register the character device interface
Add the character device during rproc_add. This would create
a character device node at /dev/remoteproc<index>. Userspace
applications can interact with the remote processor using this
interface.
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Signed-off-by: Siddharth Gupta <sidgup@codeaurora.org>
Link: https://lore.kernel.org/r/1596044401-22083-3-git-send-email-sidgup@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/remoteproc_core.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 277d3bf7a250..7f90eeea67e2 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -1986,6 +1986,11 @@ int rproc_add(struct rproc *rproc) /* create debugfs entries */ rproc_create_debug_dir(rproc); + /* add char device for this remoteproc */ + ret = rproc_char_device_add(rproc); + if (ret < 0) + return ret; + /* * Remind ourselves the remote processor has been attached to rather * than booted by the remoteproc core. This is important because the @@ -2262,6 +2267,7 @@ int rproc_del(struct rproc *rproc) mutex_unlock(&rproc->lock); rproc_delete_debug_dir(rproc); + rproc_char_device_remove(rproc); /* the rproc is downref'ed as soon as it's removed from the klist */ mutex_lock(&rproc_list_mutex); @@ -2430,6 +2436,7 @@ static int __init remoteproc_init(void) { rproc_init_sysfs(); rproc_init_debugfs(); + rproc_init_cdev(); rproc_init_panic(); return 0; |