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authorMathieu Poirier <mathieu.poirier@linaro.org>2021-03-12 17:24:51 +0100
committerBjorn Andersson <bjorn.andersson@linaro.org>2021-03-18 14:02:09 +0100
commitd2008a96833082713094ba8a545141be1b01b266 (patch)
treebfc8ddac634d4047488e12bc0410c43c34299c1e /drivers/remoteproc/remoteproc_sysfs.c
parentremoteproc: Properly deal with a start request when attached (diff)
downloadlinux-d2008a96833082713094ba8a545141be1b01b266.tar.xz
linux-d2008a96833082713094ba8a545141be1b01b266.zip
remoteproc: Properly deal with a stop request when attached
Allow a remote processor that was started by another entity to be switched off by the remoteproc core. For that to happen a rproc::ops::stop() operation needs to be available. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Link: https://lore.kernel.org/r/20210312162453.1234145-16-mathieu.poirier@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc/remoteproc_sysfs.c')
-rw-r--r--drivers/remoteproc/remoteproc_sysfs.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/remoteproc/remoteproc_sysfs.c b/drivers/remoteproc/remoteproc_sysfs.c
index bbfa238e4707..23c0dc1ddc34 100644
--- a/drivers/remoteproc/remoteproc_sysfs.c
+++ b/drivers/remoteproc/remoteproc_sysfs.c
@@ -202,7 +202,8 @@ static ssize_t state_store(struct device *dev,
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);