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Commit fdffc473 authored by Mike Tipton's avatar Mike Tipton
Browse files

clk: qcom: Add functions to suspend or resume a clk_regmap's device 



Add helper functions to suspend or resume the device associated with a
clk_regmap.

Change-Id: Ie4e47fce64e2052ffacdc3a8cd56fc69758d70fb
Signed-off-by: default avatarMike Tipton <mdtipton@codeaurora.org>
parent 70335921

drivers/clk/qcom/clk-regmap.c

+24 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ 
#include <linux/clk-provider.h>

#include <linux/regmap.h>

#include <linux/export.h>

#include <linux/pm_runtime.h>



#include "clk-regmap.h"
@@ -270,6 +271,8 @@ int devm_clk_register_regmap(struct device *dev, struct clk_regmap *rclk) 
{

	int ret;



	rclk->dev = dev;



	if (dev && dev_get_regmap(dev, NULL))

		rclk->regmap = dev_get_regmap(dev, NULL);

	else if (dev && dev->parent)
@@ -282,3 +285,24 @@ int devm_clk_register_regmap(struct device *dev, struct clk_regmap *rclk) 
	return ret;

}

EXPORT_SYMBOL_GPL(devm_clk_register_regmap);



int clk_runtime_get_regmap(struct clk_regmap *rclk)

{

	int ret;



	if (pm_runtime_enabled(rclk->dev)) {

		ret = pm_runtime_get_sync(rclk->dev);

		if (ret < 0)

			return ret;

	}



	return 0;

}

EXPORT_SYMBOL(clk_runtime_get_regmap);



void clk_runtime_put_regmap(struct clk_regmap *rclk)

{

	if (pm_runtime_enabled(rclk->dev))

		pm_runtime_put_sync(rclk->dev);

}

EXPORT_SYMBOL(clk_runtime_put_regmap);

drivers/clk/qcom/clk-regmap.h

+4 −0
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ struct clk_regmap { 
	struct clk_vdd_class_data vdd_data;

	struct clk_regmap_ops *ops;

	struct list_head list_node;

	struct device *dev;

};

#define to_clk_regmap(_hw) container_of(_hw, struct clk_regmap, hw)
@@ -71,4 +72,7 @@ struct clk_register_data { 
	u32 offset;

};



int clk_runtime_get_regmap(struct clk_regmap *rclk);

void clk_runtime_put_regmap(struct clk_regmap *rclk);



#endif