diff options
| author | Suman Anna <s-anna@ti.com> | 2019-08-10 01:20:57 +0300 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2019-08-27 00:50:16 +0300 |
| commit | 6ed756aa0148a5ad0dbdced6f14f22e2f5748d35 (patch) | |
| tree | 066def8c68bac68032be93823a51ae9e39eb5660 /drivers/remoteproc | |
| parent | 1417dba1034d644953238add381e31ada3a3a199 (diff) | |
| download | linux-6ed756aa0148a5ad0dbdced6f14f22e2f5748d35.tar.xz | |
remoteproc: Add a sysfs interface for name
This patch adds a sysfs interface that provides the name of the
remote processor to userspace. This allows the userspace to identify
a remote processor as the remoteproc devices themselves are created
based on probe order and can change from one boot to another or
at runtime.
The name is made available in debugfs originally, and is being
retained for now. This can be cleaned up after couple of releases
once users get familiar with the new interface.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/remoteproc_sysfs.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/remoteproc/remoteproc_sysfs.c b/drivers/remoteproc/remoteproc_sysfs.c index fa4131930106..7f8536b73295 100644 --- a/drivers/remoteproc/remoteproc_sysfs.c +++ b/drivers/remoteproc/remoteproc_sysfs.c @@ -113,9 +113,20 @@ static ssize_t state_store(struct device *dev, } static DEVICE_ATTR_RW(state); +/* Expose the name of the remote processor via sysfs */ +static ssize_t name_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct rproc *rproc = to_rproc(dev); + + return sprintf(buf, "%s\n", rproc->name); +} +static DEVICE_ATTR_RO(name); + static struct attribute *rproc_attrs[] = { &dev_attr_firmware.attr, &dev_attr_state.attr, + &dev_attr_name.attr, NULL }; |