clk: samsung: add infrastructure to add separate aliases

[~andy/linux] / drivers / clk / samsung / clk.c

diff --git a/drivers/clk/samsung/clk.c b/drivers/clk/samsung/clk.c
index 1ed571606395cef04987232612861453ad9d5a91..82f27f644dae584eeb51cddbebb2c224ff4bc288 100644 (file)
--- a/drivers/clk/samsung/clk.c
+++ b/drivers/clk/samsung/clk.c
@@ -97,6 +97,39 @@ void samsung_clk_add_lookup(struct clk *clk, unsigned int id)
                clk_table[id] = clk;
 }
 
+/* register a list of aliases */
+void __init samsung_clk_register_alias(struct samsung_clock_alias *list,
+                                       unsigned int nr_clk)
+{
+       struct clk *clk;
+       unsigned int idx, ret;
+
+       if (!clk_table) {
+               pr_err("%s: clock table missing\n", __func__);
+               return;
+       }
+
+       for (idx = 0; idx < nr_clk; idx++, list++) {
+               if (!list->id) {
+                       pr_err("%s: clock id missing for index %d\n", __func__,
+                               idx);
+                       continue;
+               }
+
+               clk = clk_table[list->id];
+               if (!clk) {
+                       pr_err("%s: failed to find clock %d\n", __func__,
+                               list->id);
+                       continue;
+               }
+
+               ret = clk_register_clkdev(clk, list->alias, list->dev_name);
+               if (ret)
+                       pr_err("%s: failed to register lookup %s\n",
+                                       __func__, list->alias);
+       }
+}
+
 /* register a list of fixed clocks */
 void __init samsung_clk_register_fixed_rate(
                struct samsung_fixed_rate_clock *list, unsigned int nr_clk)