Fix use of conditional LMB

[oweals/u-boot.git] / include / fdtdec.h

diff --git a/include/fdtdec.h b/include/fdtdec.h
index a37cf54a9358be33f1eb304490e22d723a39f62e..5164ce24e61e2686ae6fb664862dfc8363a4238f 100644 (file)
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -89,6 +89,22 @@ struct fdt_gpio_state {
 /* This tells us whether a fdt_gpio_state record is valid or not */
 #define fdt_gpio_isvalid(x) ((x)->gpio != FDT_GPIO_NONE)
 
+/**
+ * Read the GPIO taking into account the polarity of the pin.
+ *
+ * @param gpio         pointer to the decoded gpio
+ * @return value of the gpio if successful, < 0 if unsuccessful
+ */
+int fdtdec_get_gpio(struct fdt_gpio_state *gpio);
+
+/**
+ * Write the GPIO taking into account the polarity of the pin.
+ *
+ * @param gpio         pointer to the decoded gpio
+ * @return 0 if successful
+ */
+int fdtdec_set_gpio(struct fdt_gpio_state *gpio, int val);
+
 /**
  * Find the next numbered alias for a peripheral. This is used to enumerate
  * all the peripherals of a certain type.
@@ -181,6 +197,21 @@ fdt_addr_t fdtdec_get_addr(const void *blob, int node,
 s32 fdtdec_get_int(const void *blob, int node, const char *prop_name,
                s32 default_val);
 
+/**
+ * Look up a 64-bit integer property in a node and return it. The property
+ * must have at least 8 bytes of data (2 cells). The first two cells are
+ * concatenated to form a 8 bytes value, where the first cell is top half and
+ * the second cell is bottom half.
+ *
+ * @param blob FDT blob
+ * @param node node to examine
+ * @param prop_name    name of property to find
+ * @param default_val  default value to return if the property is not found
+ * @return integer value, if found, or default_val if not
+ */
+uint64_t fdtdec_get_uint64(const void *blob, int node, const char *prop_name,
+               uint64_t default_val);
+
 /**
  * Checks whether a node is enabled.
  * This looks for a 'status' property. If this exists, then returns 1 if