Commit 0c125f87 authored by Marek Vasut's avatar Marek Vasut Committed by Stephen Boyd
Browse files

clk: fixed-factor: Introduce devm_clk_hw_register_fixed_factor_index() 



Add an API for a fixed factor clk that uses an index for the parent
instead of a string name. This allows us to move drivers away from the
string based method of describing parents and use the DT/firmware based
method instead.

Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: devicetree@vger.kernel.org
Link: https://lore.kernel.org/r/20220226040723.143705-2-marex@denx.de


[sboyd@kernel.org: Expose a new API instead of internal function]
Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent 26c1bc67

drivers/clk/clk-fixed-factor.c

+22 −0
Original line number Diff line number Diff line
@@ -131,6 +131,28 @@ __clk_hw_register_fixed_factor(struct device *dev, struct device_node *np, 
	return hw;

}



/**

 * devm_clk_hw_register_fixed_factor_index - Register a fixed factor clock with

 * parent from DT index

 * @dev: device that is registering this clock

 * @name: name of this clock

 * @index: index of phandle in @dev 'clocks' property

 * @flags: fixed factor flags

 * @mult: multiplier

 * @div: divider

 *

 * Return: Pointer to fixed factor clk_hw structure that was registered or

 * an error pointer.

 */

struct clk_hw *devm_clk_hw_register_fixed_factor_index(struct device *dev,

		const char *name, unsigned int index, unsigned long flags,

		unsigned int mult, unsigned int div)

{

	return __clk_hw_register_fixed_factor(dev, NULL, name, NULL, index,

					      flags, mult, div, true);

}

EXPORT_SYMBOL_GPL(devm_clk_hw_register_fixed_factor_index);



struct clk_hw *clk_hw_register_fixed_factor(struct device *dev,

		const char *name, const char *parent_name, unsigned long flags,

		unsigned int mult, unsigned int div)

include/linux/clk-provider.h

+3 −0
Original line number Diff line number Diff line
@@ -1003,6 +1003,9 @@ void clk_hw_unregister_fixed_factor(struct clk_hw *hw); 
struct clk_hw *devm_clk_hw_register_fixed_factor(struct device *dev,

		const char *name, const char *parent_name, unsigned long flags,

		unsigned int mult, unsigned int div);

struct clk_hw *devm_clk_hw_register_fixed_factor_index(struct device *dev,

		const char *name, unsigned int index, unsigned long flags,

		unsigned int mult, unsigned int div);

/**

 * struct clk_fractional_divider - adjustable fractional divider clock

 *