arm64: dts: rk3368-android: enable iep default

[firefly-linux-kernel-4.4.55.git] / drivers / video / rockchip / display-sys.c

diff --git a/drivers/video/rockchip/display-sys.c b/drivers/video/rockchip/display-sys.c
index 4d9e6670f2f2c6d04583c5257204c39209907699..6db202ae63be451bc698337910865ad80e6d7ce5 100644 (file)
--- a/drivers/video/rockchip/display-sys.c
+++ b/drivers/video/rockchip/display-sys.c
@@ -448,6 +448,22 @@ static ssize_t debug_store(struct device *dev,
 
 static DEVICE_ATTR_RW(debug);
 
+static ssize_t prop_show(struct device *dev,
+                        struct device_attribute *attr, char *buf)
+{
+       struct rk_display_device *dsp = dev_get_drvdata(dev);
+       int ret = -EINVAL;
+
+       mutex_lock(&dsp->lock);
+       if (dsp->ops && dsp->ops->getvrinfo)
+               ret = dsp->ops->getvrinfo(dsp, buf);
+       mutex_unlock(&dsp->lock);
+
+       return ret;
+}
+
+static DEVICE_ATTR_RO(prop);
+
 static struct attribute *display_device_attrs[] = {
        &dev_attr_name.attr,
        &dev_attr_type.attr,
@@ -462,6 +478,7 @@ static struct attribute *display_device_attrs[] = {
        &dev_attr_audioinfo.attr,
        &dev_attr_monspecs.attr,
        &dev_attr_debug.attr,
+       &dev_attr_prop.attr,
        NULL,
 };