sysinfo: Add sysinfo API for accessing data area
Add interface for sysinfo to access a data area from the platform.
This is useful to save/read a memory region of platform-specific
data.
Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
diff --git a/drivers/sysinfo/sysinfo-uclass.c b/drivers/sysinfo/sysinfo-uclass.c
index d77d1e3..3c0cd51 100644
--- a/drivers/sysinfo/sysinfo-uclass.c
+++ b/drivers/sysinfo/sysinfo-uclass.c
@@ -99,6 +99,26 @@
return ops->get_str(dev, id, size, val);
}
+int sysinfo_get_data(struct udevice *dev, int id, void **data, size_t *size)
+{
+ struct sysinfo_priv *priv;
+ struct sysinfo_ops *ops;
+
+ if (!dev)
+ return -ENOSYS;
+
+ priv = dev_get_uclass_priv(dev);
+ ops = sysinfo_get_ops(dev);
+
+ if (!priv->detected)
+ return -EPERM;
+
+ if (!ops->get_data)
+ return -ENOSYS;
+
+ return ops->get_data(dev, id, data, size);
+}
+
UCLASS_DRIVER(sysinfo) = {
.id = UCLASS_SYSINFO,
.name = "sysinfo",