diff options
Diffstat (limited to 'include/dm')
| -rw-r--r-- | include/dm/read.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/dm/read.h b/include/dm/read.h index 65d5d1f357..cea1c16a00 100644 --- a/include/dm/read.h +++ b/include/dm/read.h @@ -315,6 +315,19 @@ ofnode dev_read_next_subnode(ofnode node); const uint8_t *dev_read_u8_array_ptr(struct udevice *dev, const char *propname, size_t sz); +/** + * dev_read_enabled() - check whether a node is enabled + * + * This looks for a 'status' property. If this exists, then returns 1 if + * the status is 'ok' and 0 otherwise. If there is no status property, + * it returns 1 on the assumption that anything mentioned should be enabled + * by default. + * + * @dev: device to examine + * @return integer value 0 (not enabled) or 1 (enabled) + */ +int dev_read_enabled(struct udevice *dev); + #else /* CONFIG_DM_DEV_READ_INLINE is enabled */ static inline int dev_read_u32_default(struct udevice *dev, @@ -432,6 +445,11 @@ static inline const uint8_t *dev_read_u8_array_ptr(struct udevice *dev, return ofnode_read_u8_array_ptr(dev_ofnode(dev), propname, sz); } +static inline int dev_read_enabled(struct udevice *dev) +{ + return fdtdec_get_is_enabled(gd->fdt_blob, dev_of_offset(dev)); +} + #endif /* CONFIG_DM_DEV_READ_INLINE */ /** |