--- /dev/null
+Binding for simple fixed factor rate clock sources.
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- compatible : shall be "fixed-factor-clock".
+- #clock-cells : from common clock binding; shall be set to 0.
+- clock-div: fixed divider.
+- clock-mult: fixed multiplier.
+- clocks: parent clock.
+
+Optional properties:
+- clock-output-names : From common clock binding.
+
+Example:
+ clock {
+ compatible = "fixed-factor-clock";
+ clocks = <&parentclk>;
+ #clock-cells = <0>;
+ div = <2>;
+ mult = <1>;
+ };
#include <linux/clk-provider.h>
#include <linux/slab.h>
#include <linux/err.h>
+#include <linux/of.h>
/*
* DOC: basic fixed multiplier and divider clock that cannot gate
return clk;
}
+#ifdef CONFIG_OF
+/**
+ * of_fixed_factor_clk_setup() - Setup function for simple fixed factor clock
+ */
+void __init of_fixed_factor_clk_setup(struct device_node *node)
+{
+ struct clk *clk;
+ const char *clk_name = node->name;
+ const char *parent_name;
+ u32 div, mult;
+
+ if (of_property_read_u32(node, "clock-div", &div)) {
+ pr_err("%s Fixed factor clock <%s> must have a clock-div property\n",
+ __func__, node->name);
+ return;
+ }
+
+ if (of_property_read_u32(node, "clock-mult", &mult)) {
+ pr_err("%s Fixed factor clock <%s> must have a clokc-mult property\n",
+ __func__, node->name);
+ return;
+ }
+
+ of_property_read_string(node, "clock-output-names", &clk_name);
+ parent_name = of_clk_get_parent_name(node, 0);
+
+ clk = clk_register_fixed_factor(NULL, clk_name, parent_name, 0,
+ mult, div);
+ if (!IS_ERR(clk))
+ of_clk_add_provider(node, of_clk_src_simple_get, clk);
+}
+EXPORT_SYMBOL_GPL(of_fixed_factor_clk_setup);
+CLK_OF_DECLARE(fixed_factor_clk, "fixed-factor-clock",
+ of_fixed_factor_clk_setup);
+#endif
void __iomem *reg, u8 shift, u32 mask,
u8 clk_mux_flags, u32 *table, spinlock_t *lock);
+void of_fixed_factor_clk_setup(struct device_node *node);
+
/**
* struct clk_fixed_factor - fixed multiplier and divider clock
*