diff options
Diffstat (limited to 'drivers/remoteproc/remoteproc_sysfs.c')
| -rw-r--r-- | drivers/remoteproc/remoteproc_sysfs.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/remoteproc/remoteproc_sysfs.c b/drivers/remoteproc/remoteproc_sysfs.c index 1dbef895e65e..ea8b89f97d7b 100644 --- a/drivers/remoteproc/remoteproc_sysfs.c +++ b/drivers/remoteproc/remoteproc_sysfs.c @@ -15,7 +15,7 @@ static ssize_t recovery_show(struct device *dev, { struct rproc *rproc = to_rproc(dev); - return sprintf(buf, "%s", rproc->recovery_disabled ? "disabled\n" : "enabled\n"); + return sysfs_emit(buf, "%s", rproc->recovery_disabled ? "disabled\n" : "enabled\n"); } /* @@ -82,7 +82,7 @@ static ssize_t coredump_show(struct device *dev, { struct rproc *rproc = to_rproc(dev); - return sprintf(buf, "%s\n", rproc_coredump_str[rproc->dump_conf]); + return sysfs_emit(buf, "%s\n", rproc_coredump_str[rproc->dump_conf]); } /* @@ -138,11 +138,8 @@ static ssize_t firmware_show(struct device *dev, struct device_attribute *attr, * If the remote processor has been started by an external * entity we have no idea of what image it is running. As such * simply display a generic string rather then rproc->firmware. - * - * Here we rely on the autonomous flag because a remote processor - * may have been attached to and currently in a running state. */ - if (rproc->autonomous) + if (rproc->state == RPROC_ATTACHED) firmware = "unknown"; return sprintf(buf, "%s\n", firmware); @@ -172,6 +169,7 @@ static const char * const rproc_state_string[] = { [RPROC_RUNNING] = "running", [RPROC_CRASHED] = "crashed", [RPROC_DELETED] = "deleted", + [RPROC_ATTACHED] = "attached", [RPROC_DETACHED] = "detached", [RPROC_LAST] = "invalid", }; @@ -196,17 +194,24 @@ static ssize_t state_store(struct device *dev, int ret = 0; if (sysfs_streq(buf, "start")) { - if (rproc->state == RPROC_RUNNING) + if (rproc->state == RPROC_RUNNING || + rproc->state == RPROC_ATTACHED) return -EBUSY; ret = rproc_boot(rproc); if (ret) dev_err(&rproc->dev, "Boot failed: %d\n", ret); } else if (sysfs_streq(buf, "stop")) { - if (rproc->state != RPROC_RUNNING) + if (rproc->state != RPROC_RUNNING && + rproc->state != RPROC_ATTACHED) return -EINVAL; rproc_shutdown(rproc); + } else if (sysfs_streq(buf, "detach")) { + if (rproc->state != RPROC_ATTACHED) + return -EINVAL; + + ret = rproc_detach(rproc); } else { dev_err(&rproc->dev, "Unrecognised option: %s\n", buf); ret = -EINVAL; |