dm: core: implement ofnode_options helpers

Implement ofnode_options helpers to read options in /options/u-boot to
adapt to the new way to declare options as described in [1].

[1] dtschema/schemas/options/u-boot.yaml

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c
index 7e3b3719d18fe8f961129e0c408c419ad5103030..677d51ef9386c88f3d0a228281c691a9d74d4920 100644 (file)
--- a/drivers/core/ofnode.c
+++ b/drivers/core/ofnode.c
@@ -1735,6 +1735,39 @@ const char *ofnode_conf_read_str(const char *prop_name)
        return ofnode_read_string(node, prop_name);
 }
 
+bool ofnode_options_read_bool(const char *prop_name)
+{
+       ofnode uboot;
+
+       uboot = ofnode_path("/options/u-boot");
+       if (!ofnode_valid(uboot))
+               return false;
+
+       return ofnode_read_bool(uboot, prop_name);
+}
+
+int ofnode_options_read_int(const char *prop_name, int default_val)
+{
+       ofnode uboot;
+
+       uboot = ofnode_path("/options/u-boot");
+       if (!ofnode_valid(uboot))
+               return default_val;
+
+       return ofnode_read_u32_default(uboot, prop_name, default_val);
+}
+
+const char *ofnode_options_read_str(const char *prop_name)
+{
+       ofnode uboot;
+
+       uboot = ofnode_path("/options/u-boot");
+       if (!ofnode_valid(uboot))
+               return NULL;
+
+       return ofnode_read_string(uboot, prop_name);
+}
+
 int ofnode_read_bootscript_address(u64 *bootscr_address, u64 *bootscr_offset)
 {
        int ret;

diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h
index 5795115c490bb5d37fd6449f3b40b14e79832206..0787758926f6726aa3dda5db30f70925cc602ffb 100644 (file)
--- a/include/dm/ofnode.h
+++ b/include/dm/ofnode.h
@@ -1587,6 +1587,47 @@ int ofnode_conf_read_int(const char *prop_name, int default_val);
  */
 const char *ofnode_conf_read_str(const char *prop_name);
 
+/**
+ * ofnode_options_read_bool() - Read a boolean value from the U-Boot options
+ *
+ * This reads a property from the /options/u-boot/ node of the devicetree.
+ *
+ * This only works with the control FDT.
+ *
+ * See dtschema/schemas/options/u-boot.yaml in dt-schema project for bindings
+ *
+ * @prop_name: property name to look up
+ * Return: true, if it exists, false if not
+ */
+bool ofnode_options_read_bool(const char *prop_name);
+
+/**
+ * ofnode_options_read_int() - Read an integer value from the U-Boot options
+ *
+ * This reads a property from the /options/u-boot/ node of the devicetree.
+ *
+ * See dtschema/schemas/options/u-boot.yaml in dt-schema project for bindings
+ *
+ * @prop_name: property name to look up
+ * @default_val: default value to return if the property is not found
+ * Return: integer value, if found, or @default_val if not
+ */
+int ofnode_options_read_int(const char *prop_name, int default_val);
+
+/**
+ * ofnode_options_read_str() - Read a string value from the U-Boot options
+ *
+ * This reads a property from the /options/u-boot/ node of the devicetree.
+ *
+ * This only works with the control FDT.
+ *
+ * See dtschema/schemas/options/u-boot.yaml in dt-schema project for bindings
+ *
+ * @prop_name: property name to look up
+ * Return: string value, if found, or NULL if not
+ */
+const char *ofnode_options_read_str(const char *prop_name);
+
 /**
  * ofnode_read_bootscript_address() - Read bootscr-address or bootscr-ram-offset
  *