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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 committed by Mike Tipton
parent 5d36546f55
commit 2ffa8360f4
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"
@ -271,6 +272,8 @@ 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)
@ -283,3 +286,24 @@ 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

@ -47,6 +47,7 @@ struct clk_regmap {
struct clk_vdd_class_data vdd_data;
struct clk_regmap_ops *ops;
struct list_head list_node;
struct device *dev;
};
static inline struct clk_regmap *to_clk_regmap(struct clk_hw *hw)
@ -66,4 +67,7 @@ int clk_post_change_regmap(struct clk_hw *hw, unsigned long old_rate,
int devm_clk_register_regmap(struct device *dev, struct clk_regmap *rclk);
bool clk_is_regmap_clk(struct clk_hw *hw);
int clk_runtime_get_regmap(struct clk_regmap *rclk);
void clk_runtime_put_regmap(struct clk_regmap *rclk);
#endif