remoteproc: wkup_m3: Set sysfs_read_only flag

The Wakeup M3 remote processor is controlled by the wkup_m3_ipc
client driver, so set the newly introduced 'sysfs_read_only' flag
to not allow any overriding of the remoteproc firmware, state,
recovery, or coredump from userspace.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Puranjay Mohan <p-mohan@ti.com>
Link: https://lore.kernel.org/r/20220216081224.9956-3-p-mohan@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

diff --git a/drivers/remoteproc/wkup_m3_rproc.c b/drivers/remoteproc/wkup_m3_rproc.c
index 484f7605823ed93e42d2eeb31bac731b9382c856..a0c204cb09798f822a6e9001d7ba1881ba92b7ea 100644 (file)
--- a/drivers/remoteproc/wkup_m3_rproc.c
+++ b/drivers/remoteproc/wkup_m3_rproc.c
@@ -163,6 +163,7 @@ static int wkup_m3_rproc_probe(struct platform_device *pdev)
        }
 
        rproc->auto_boot = false;
+       rproc->sysfs_read_only = true;
 
        wkupm3 = rproc->priv;
        wkupm3->rproc = rproc;