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authorAlexander Usyskin <alexander.usyskin@intel.com>2020-08-18 14:51:37 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-08-18 16:44:43 +0300
commit2dd1e5ae8c96f1262ce81d0e77225281ae55eb3d (patch)
tree8b617c93b302e7ad436133f7638c8d60b76b4518 /drivers/misc/mei/bus.c
parentbeb4e1e50311eeb65009cded71c02f3826fa314f (diff)
downloadlinux-2dd1e5ae8c96f1262ce81d0e77225281ae55eb3d.tar.xz
mei: add vtag support bit in client properties
Vtag support is on a client basis, meaning not every client supports it. The vtag capability is communicated via the client properties structure during client enumeration process. Export the propertiy via sysfs. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20200818115147.2567012-4-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/bus.c')
-rw-r--r--drivers/misc/mei/bus.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index a6dfc3ce1db2..2e7ac53a4152 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -810,6 +810,16 @@ static ssize_t fixed_show(struct device *dev, struct device_attribute *a,
}
static DEVICE_ATTR_RO(fixed);
+static ssize_t vtag_show(struct device *dev, struct device_attribute *a,
+ char *buf)
+{
+ struct mei_cl_device *cldev = to_mei_cl_device(dev);
+ bool vt = mei_me_cl_vt(cldev->me_cl);
+
+ return sprintf(buf, "%d", vt);
+}
+static DEVICE_ATTR_RO(vtag);
+
static ssize_t max_len_show(struct device *dev, struct device_attribute *a,
char *buf)
{
@@ -827,6 +837,7 @@ static struct attribute *mei_cldev_attrs[] = {
&dev_attr_modalias.attr,
&dev_attr_max_conn.attr,
&dev_attr_fixed.attr,
+ &dev_attr_vtag.attr,
&dev_attr_max_len.attr,
NULL,
};