clk: ti: add API for creating aliases automatically for simple clock types

This API generates clock aliases automatically for simple clock types
(fixed-clock, fixed-factor-clock), so that we don't need to add the data
for these statically into tables. Shall be called from the SoC specific
clock init.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index 91bad55cfd5a396a947d502b1faedd05b907c4d5..193862ed27c7799e5a46495d951a05800b7de7e6 100644 (file)
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -355,6 +355,12 @@ struct clk __init *ti_clk_register_clk(struct ti_clk *setup)
        return clk;
 }
 
+static const struct of_device_id simple_clk_match_table[] __initconst = {
+       { .compatible = "fixed-clock" },
+       { .compatible = "fixed-factor-clock" },
+       { }
+};
+
 int __init ti_clk_register_legacy_clks(struct ti_clk_alias *clks)
 {
        struct clk *clk;
@@ -408,6 +414,26 @@ int __init ti_clk_register_legacy_clks(struct ti_clk_alias *clks)
 }
 #endif
 
+/**
+ * ti_clk_add_aliases - setup clock aliases
+ *
+ * Sets up any missing clock aliases. No return value.
+ */
+void __init ti_clk_add_aliases(void)
+{
+       struct device_node *np;
+       struct clk *clk;
+
+       for_each_matching_node(np, simple_clk_match_table) {
+               struct of_phandle_args clkspec;
+
+               clkspec.np = np;
+               clk = of_clk_get_from_provider(&clkspec);
+
+               ti_clk_add_alias(NULL, clk, np->name);
+       }
+}
+
 /**
  * ti_clk_setup_features - setup clock features flags
  * @features: features definition to use

diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index c38de6d77e293c7c27087b4bd2079b4916ce5139..ee6d22507a3d7013a45f3882e3dde3e94f01a9b5 100644 (file)
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -192,6 +192,7 @@ struct clk *ti_clk_register_dpll(struct ti_clk *setup);
 struct clk *ti_clk_register(struct device *dev, struct clk_hw *hw,
                            const char *con);
 int ti_clk_add_alias(struct device *dev, struct clk *clk, const char *con);
+void ti_clk_add_aliases(void);
 
 struct clk_hw *ti_clk_build_component_div(struct ti_clk_divider *setup);
 struct clk_hw *ti_clk_build_component_gate(struct ti_clk_gate *setup);