devicetree: add DT_INST_CHILD

 */

#define DT_DRV_INST(inst) DT_INST(inst, DT_DRV_COMPAT)

/**

 * @brief Get a node identifier for a child node of DT_DRV_INST(inst)

 *

 * @param inst instance number

 * @param child lowercase-and-underscores child node name

 * @return node identifier for the node with the name referred to by 'child'

 *

 * @see DT_CHILD

 */

#define DT_INST_CHILD(inst, child) \

	DT_CHILD(DT_DRV_INST(inst), child)

/**

 * @brief Call "fn" on all child nodes of DT_DRV_INST(inst).

 *