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

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

Change-Id: Ie4e47fce64e2052ffacdc3a8cd56fc69758d70fb
Signed-off-by: Mike Tipton <mdtipton@codeaurora.org>
This commit is contained in:
Mike Tipton 2020-07-28 19:17:38 -07:00
commit fdffc47313
2 changed files with 28 additions and 0 deletions
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24
drivers/clk/qcom/clk-regmap.c
View file

@ -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);

4
drivers/clk/qcom/clk-regmap.h
View file

@ -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