clk/renesas/clk-r8a73a4.c

1 // SPDX-License-Identifier: GPL-2.0
3  * r8a73a4 Core CPG Clocks
8 #include <linux/clk-provider.h>
58 r8a73a4_cpg_register_clock(struct device_node *np, struct r8a73a4_cpg *cpg,  in r8a73a4_cpg_register_clock()  argument
88 		/* PLL0/1 are configurable multiplier clocks. Register them as  in r8a73a4_cpg_register_clock()
89 		 * fixed factor clocks for now as there's no generic multiplier  in r8a73a4_cpg_register_clock()
121 			return ERR_PTR(-EINVAL);  in r8a73a4_cpg_register_clock()
146 			return ERR_PTR(-EINVAL);  in r8a73a4_cpg_register_clock()
159 		mult = 0x20 - ((readl(base + CPG_FRQCRC) >> shift) & 0x1f);  in r8a73a4_cpg_register_clock()
163 		for (c = div4_clks; c->name; c++) {  in r8a73a4_cpg_register_clock()
164 			if (!strcmp(name, c->name))  in r8a73a4_cpg_register_clock()
167 		if (!c->name)  in r8a73a4_cpg_register_clock()
168 			return ERR_PTR(-EINVAL);  in r8a73a4_cpg_register_clock()
172 		reg = c->reg;  in r8a73a4_cpg_register_clock()
173 		shift = c->shift;  in r8a73a4_cpg_register_clock()
182 						  table, &cpg->lock);  in r8a73a4_cpg_register_clock()
188 	struct r8a73a4_cpg *cpg;  in r8a73a4_cpg_clocks_init()  local
194 	num_clks = of_property_count_strings(np, "clock-output-names");  in r8a73a4_cpg_clocks_init()
196 		pr_err("%s: failed to count clocks\n", __func__);  in r8a73a4_cpg_clocks_init()
200 	cpg = kzalloc(sizeof(*cpg), GFP_KERNEL);  in r8a73a4_cpg_clocks_init()
202 	if (cpg == NULL || clks == NULL) {  in r8a73a4_cpg_clocks_init()
209 	spin_lock_init(&cpg->lock);  in r8a73a4_cpg_clocks_init()
211 	cpg->data.clks = clks;  in r8a73a4_cpg_clocks_init()
212 	cpg->data.clk_num = num_clks;  in r8a73a4_cpg_clocks_init()
222 		of_property_read_string_index(np, "clock-output-names", i,  in r8a73a4_cpg_clocks_init()
225 		clk = r8a73a4_cpg_register_clock(np, cpg, base, name);  in r8a73a4_cpg_clocks_init()
230 			cpg->data.clks[i] = clk;  in r8a73a4_cpg_clocks_init()
233 	of_clk_add_provider(np, of_clk_src_onecell_get, &cpg->data);  in r8a73a4_cpg_clocks_init()
235 CLK_OF_DECLARE(r8a73a4_cpg_clks, "renesas,r8a73a4-cpg-clocks",