* parent - fixed parent. No clk_set_parent support
*/
+#define to_clk_fixed_rate(_hw) container_of(_hw, struct clk_fixed_rate, hw)
+
static unsigned long clk_fixed_rate_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
static unsigned long clk_fixed_rate_recalc_accuracy(struct clk_hw *hw,
unsigned long parent_accuracy)
{
- return to_clk_fixed_rate(hw)->fixed_accuracy;
+ struct clk_fixed_rate *fixed = to_clk_fixed_rate(hw);
+
+ if (fixed->flags & CLK_FIXED_RATE_PARENT_ACCURACY)
+ return parent_accuracy;
+
+ return fixed->fixed_accuracy;
}
const struct clk_ops clk_fixed_rate_ops = {
};
EXPORT_SYMBOL_GPL(clk_fixed_rate_ops);
-/**
- * clk_hw_register_fixed_rate_with_accuracy - register fixed-rate clock with
- * the clock framework
- * @dev: device that is registering this clock
- * @name: name of this clock
- * @parent_name: name of clock's parent
- * @flags: framework-specific flags
- * @fixed_rate: non-adjustable clock rate
- * @fixed_accuracy: non-adjustable clock rate
- */
-struct clk_hw *clk_hw_register_fixed_rate_with_accuracy(struct device *dev,
- const char *name, const char *parent_name, unsigned long flags,
- unsigned long fixed_rate, unsigned long fixed_accuracy)
+struct clk_hw *__clk_hw_register_fixed_rate(struct device *dev,
+ struct device_node *np, const char *name,
+ const char *parent_name, const struct clk_hw *parent_hw,
+ const struct clk_parent_data *parent_data, unsigned long flags,
+ unsigned long fixed_rate, unsigned long fixed_accuracy,
+ unsigned long clk_fixed_flags)
{
struct clk_fixed_rate *fixed;
struct clk_hw *hw;
struct clk_init_data init = {};
- int ret;
+ int ret = -EINVAL;
/* allocate fixed-rate clock */
fixed = kzalloc(sizeof(*fixed), GFP_KERNEL);
init.name = name;
init.ops = &clk_fixed_rate_ops;
init.flags = flags;
- init.parent_names = (parent_name ? &parent_name: NULL);
- init.num_parents = (parent_name ? 1 : 0);
+ init.parent_names = parent_name ? &parent_name : NULL;
+ init.parent_hws = parent_hw ? &parent_hw : NULL;
+ init.parent_data = parent_data;
+ if (parent_name || parent_hw || parent_data)
+ init.num_parents = 1;
+ else
+ init.num_parents = 0;
/* struct clk_fixed_rate assignments */
+ fixed->flags = clk_fixed_flags;
fixed->fixed_rate = fixed_rate;
fixed->fixed_accuracy = fixed_accuracy;
fixed->hw.init = &init;
/* register the clock */
hw = &fixed->hw;
- ret = clk_hw_register(dev, hw);
+ if (dev || !np)
+ ret = clk_hw_register(dev, hw);
+ else if (np)
+ ret = of_clk_hw_register(np, hw);
if (ret) {
kfree(fixed);
hw = ERR_PTR(ret);
return hw;
}
-EXPORT_SYMBOL_GPL(clk_hw_register_fixed_rate_with_accuracy);
+EXPORT_SYMBOL_GPL(__clk_hw_register_fixed_rate);
-struct clk *clk_register_fixed_rate_with_accuracy(struct device *dev,
- const char *name, const char *parent_name, unsigned long flags,
- unsigned long fixed_rate, unsigned long fixed_accuracy)
+struct clk *clk_register_fixed_rate(struct device *dev, const char *name,
+ const char *parent_name, unsigned long flags,
+ unsigned long fixed_rate)
{
struct clk_hw *hw;
hw = clk_hw_register_fixed_rate_with_accuracy(dev, name, parent_name,
- flags, fixed_rate, fixed_accuracy);
+ flags, fixed_rate, 0);
if (IS_ERR(hw))
return ERR_CAST(hw);
return hw->clk;
}
-EXPORT_SYMBOL_GPL(clk_register_fixed_rate_with_accuracy);
-
-/**
- * clk_hw_register_fixed_rate - register fixed-rate clock with the clock
- * framework
- * @dev: device that is registering this clock
- * @name: name of this clock
- * @parent_name: name of clock's parent
- * @flags: framework-specific flags
- * @fixed_rate: non-adjustable clock rate
- */
-struct clk_hw *clk_hw_register_fixed_rate(struct device *dev, const char *name,
- const char *parent_name, unsigned long flags,
- unsigned long fixed_rate)
-{
- return clk_hw_register_fixed_rate_with_accuracy(dev, name, parent_name,
- flags, fixed_rate, 0);
-}
-EXPORT_SYMBOL_GPL(clk_hw_register_fixed_rate);
-
-struct clk *clk_register_fixed_rate(struct device *dev, const char *name,
- const char *parent_name, unsigned long flags,
- unsigned long fixed_rate)
-{
- return clk_register_fixed_rate_with_accuracy(dev, name, parent_name,
- flags, fixed_rate, 0);
-}
EXPORT_SYMBOL_GPL(clk_register_fixed_rate);
void clk_unregister_fixed_rate(struct clk *clk)
EXPORT_SYMBOL_GPL(clk_hw_unregister_fixed_rate);
#ifdef CONFIG_OF
-static struct clk *_of_fixed_clk_setup(struct device_node *node)
+static struct clk_hw *_of_fixed_clk_setup(struct device_node *node)
{
- struct clk *clk;
+ struct clk_hw *hw;
const char *clk_name = node->name;
u32 rate;
u32 accuracy = 0;
of_property_read_string(node, "clock-output-names", &clk_name);
- clk = clk_register_fixed_rate_with_accuracy(NULL, clk_name, NULL,
+ hw = clk_hw_register_fixed_rate_with_accuracy(NULL, clk_name, NULL,
0, rate, accuracy);
- if (IS_ERR(clk))
- return clk;
+ if (IS_ERR(hw))
+ return hw;
- ret = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+ ret = of_clk_add_hw_provider(node, of_clk_hw_simple_get, hw);
if (ret) {
- clk_unregister(clk);
+ clk_hw_unregister_fixed_rate(hw);
return ERR_PTR(ret);
}
- return clk;
+ return hw;
}
/**
static int of_fixed_clk_remove(struct platform_device *pdev)
{
- struct clk *clk = platform_get_drvdata(pdev);
+ struct clk_hw *hw = platform_get_drvdata(pdev);
of_clk_del_provider(pdev->dev.of_node);
- clk_unregister_fixed_rate(clk);
+ clk_hw_unregister_fixed_rate(hw);
return 0;
}
static int of_fixed_clk_probe(struct platform_device *pdev)
{
- struct clk *clk;
+ struct clk_hw *hw;
/*
* This function is not executed when of_fixed_clk_setup
* succeeded.
*/
- clk = _of_fixed_clk_setup(pdev->dev.of_node);
- if (IS_ERR(clk))
- return PTR_ERR(clk);
+ hw = _of_fixed_clk_setup(pdev->dev.of_node);
+ if (IS_ERR(hw))
+ return PTR_ERR(hw);
- platform_set_drvdata(pdev, clk);
+ platform_set_drvdata(pdev, hw);
return 0;
}
{ .compatible = "fixed-clock" },
{ }
};
-MODULE_DEVICE_TABLE(of, of_fixed_clk_ids);
static struct platform_driver of_fixed_clk_driver = {
.driver = {
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