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Commit f08c2e28 authored by Dong Aisheng's avatar Dong Aisheng Committed by Stephen Boyd
Browse files

clk: add managed version of clk_bulk_get_all 



This patch introduces the managed version of clk_bulk_get_all.

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: default avatarThor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: default avatarDong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent 616e45df

drivers/clk/clk-devres.c

+24 −0
Original line number Diff line number Diff line
@@ -70,6 +70,30 @@ int __must_check devm_clk_bulk_get(struct device *dev, int num_clks, 
}

EXPORT_SYMBOL_GPL(devm_clk_bulk_get);



int __must_check devm_clk_bulk_get_all(struct device *dev,

				       struct clk_bulk_data **clks)

{

	struct clk_bulk_devres *devres;

	int ret;



	devres = devres_alloc(devm_clk_bulk_release,

			      sizeof(*devres), GFP_KERNEL);

	if (!devres)

		return -ENOMEM;



	ret = clk_bulk_get_all(dev, &devres->clks);

	if (ret > 0) {

		*clks = devres->clks;

		devres->num_clks = ret;

		devres_add(dev, devres);

	} else {

		devres_free(devres);

	}



	return ret;

}

EXPORT_SYMBOL_GPL(devm_clk_bulk_get_all);



static int devm_clk_match(struct device *dev, void *res, void *data)

{

	struct clk **c = res;

include/linux/clk.h

+23 −0
Original line number Diff line number Diff line
@@ -346,6 +346,22 @@ int __must_check clk_bulk_get_all(struct device *dev, 
 */

int __must_check devm_clk_bulk_get(struct device *dev, int num_clks,

				   struct clk_bulk_data *clks);

/**

 * devm_clk_bulk_get_all - managed get multiple clk consumers

 * @dev: device for clock "consumer"

 * @clks: pointer to the clk_bulk_data table of consumer

 *

 * Returns a positive value for the number of clocks obtained while the

 * clock references are stored in the clk_bulk_data table in @clks field.

 * Returns 0 if there're none and a negative value if something failed.

 *

 * This helper function allows drivers to get several clk

 * consumers in one operation with management, the clks will

 * automatically be freed when the device is unbound.

 */



int __must_check devm_clk_bulk_get_all(struct device *dev,

				       struct clk_bulk_data **clks);



/**

 * devm_clk_get - lookup and obtain a managed reference to a clock producer.
@@ -691,6 +707,13 @@ static inline int __must_check devm_clk_bulk_get(struct device *dev, int num_clk 
	return 0;

}



static inline int __must_check devm_clk_bulk_get_all(struct device *dev,

						     struct clk_bulk_data **clks)

{



	return 0;

}



static inline struct clk *devm_get_clk_from_child(struct device *dev,

				struct device_node *np, const char *con_id)

{