1 // SPDX-License-Identifier: GPL-2.0
8 #include <linux/clk-provider.h>
9 #include <linux/clk/clk-conf.h>
21 	num_parents = of_count_phandle_with_args(node, "assigned-clock-parents",  in __set_clk_parents()
22 						 "#clock-cells");  in __set_clk_parents()
23 	if (num_parents == -EINVAL)  in __set_clk_parents()
24 		pr_err("clk: invalid value of clock-parents property at %pOF\n",  in __set_clk_parents()
28 		rc = of_parse_phandle_with_args(node, "assigned-clock-parents",  in __set_clk_parents()
29 					"#clock-cells",	index, &clkspec);  in __set_clk_parents()
31 			/* skip empty (null) phandles */  in __set_clk_parents()
32 			if (rc == -ENOENT)  in __set_clk_parents()
44 			if (PTR_ERR(pclk) != -EPROBE_DEFER)  in __set_clk_parents()
45 				pr_warn("clk: couldn't get parent clock %d for %pOF\n",  in __set_clk_parents()
50 		rc = of_parse_phandle_with_args(node, "assigned-clocks",  in __set_clk_parents()
51 					"#clock-cells", index, &clkspec);  in __set_clk_parents()
62 			if (PTR_ERR(clk) != -EPROBE_DEFER)  in __set_clk_parents()
63 				pr_warn("clk: couldn't get assigned clock %d for %pOF\n",  in __set_clk_parents()
90 	count = of_property_count_u32_elems(node, "assigned-clock-rates");  in __set_clk_rates()
91 	count_64 = of_property_count_u64_elems(node, "assigned-clock-rates-u64");  in __set_clk_rates()
96 			return -ENOMEM;  in __set_clk_rates()
99 						"assigned-clock-rates-u64",  in __set_clk_rates()
104 			return -ENOMEM;  in __set_clk_rates()
106 		rc = of_property_read_u32_array(node, "assigned-clock-rates",  in __set_clk_rates()
124 			rc = of_parse_phandle_with_args(node, "assigned-clocks",  in __set_clk_rates()
125 					"#clock-cells",	index, &clkspec);  in __set_clk_rates()
127 				/* skip empty (null) phandles */  in __set_clk_rates()
128 				if (rc == -ENOENT)  in __set_clk_rates()
141 				if (PTR_ERR(clk) != -EPROBE_DEFER)  in __set_clk_rates()
142 					pr_warn("clk: couldn't get clock %d for %pOF\n",  in __set_clk_rates()
159  * of_clk_set_defaults() - parse and set assigned clocks configuration
160  * @node: device node to apply clock settings for
163  * This function parses 'assigned-{clocks/clock-parents/clock-rates}' properties
164  * and sets any specified clock parents and rates. The @clk_supplier argument
165  * should be set to true if @node may be also a clock supplier of any clock
166  * listed in its 'assigned-clocks' or 'assigned-clock-parents' properties.