340 	struct clk_mapping *mapping = clk->mapping;  in clk_establish_mapping()  local
345 	if (!mapping) {  in clk_establish_mapping()
352 			clk->mapping = &dummy_mapping;  in clk_establish_mapping()
361 		mapping = clkp->mapping;  in clk_establish_mapping()
362 		BUG_ON(!mapping);  in clk_establish_mapping()
368 	if (!mapping->base && mapping->phys) {  in clk_establish_mapping()
369 		kref_init(&mapping->ref);  in clk_establish_mapping()
371 		mapping->base = ioremap(mapping->phys, mapping->len);  in clk_establish_mapping()
372 		if (unlikely(!mapping->base))  in clk_establish_mapping()
374 	} else if (mapping->base) {  in clk_establish_mapping()
378 		kref_get(&mapping->ref);  in clk_establish_mapping()
381 	clk->mapping = mapping;  in clk_establish_mapping()
383 	clk->mapped_reg = clk->mapping->base;  in clk_establish_mapping()
384 	clk->mapped_reg += (phys_addr_t)clk->enable_reg - clk->mapping->phys;  in clk_establish_mapping()
390 	struct clk_mapping *mapping;  in clk_destroy_mapping()  local
392 	mapping = container_of(kref, struct clk_mapping, ref);  in clk_destroy_mapping()
394 	iounmap(mapping->base);  in clk_destroy_mapping()
399 	struct clk_mapping *mapping = clk->mapping;  in clk_teardown_mapping()  local
402 	if (mapping == &dummy_mapping)  in clk_teardown_mapping()
405 	kref_put(&mapping->ref, clk_destroy_mapping);  in clk_teardown_mapping()
406 	clk->mapping = NULL;  in clk_teardown_mapping()