From 5f4081d6fafec6c9dca9e7990e783b70db854a5c Mon Sep 17 00:00:00 2001 From: Jerome Brunet Date: Thu, 17 Apr 2025 15:44:22 +0200 Subject: [PATCH] clk: add a clk_hw helpers to get the clock device or device_node Add helpers to get the device or device_node associated with clk_hw. This can be used by clock drivers to access various device related functionality such as devres, dev_ prints, etc ... Signed-off-by: Jerome Brunet Link: https://lore.kernel.org/r/20250417-clk-hw-get-helpers-v1-1-7743e509612a@baylibre.com Reviewed-by: Brian Masney Signed-off-by: Stephen Boyd --- drivers/clk/clk.c | 12 ++++++++++++ include/linux/clk-provider.h | 26 ++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 0565c87656cf5..b821b2cdb1553 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -365,6 +365,18 @@ const char *clk_hw_get_name(const struct clk_hw *hw) } EXPORT_SYMBOL_GPL(clk_hw_get_name); +struct device *clk_hw_get_dev(const struct clk_hw *hw) +{ + return hw->core->dev; +} +EXPORT_SYMBOL_GPL(clk_hw_get_dev); + +struct device_node *clk_hw_get_of_node(const struct clk_hw *hw) +{ + return hw->core->of_node; +} +EXPORT_SYMBOL_GPL(clk_hw_get_of_node); + struct clk_hw *__clk_get_hw(struct clk *clk) { return !clk ? NULL : clk->core->hw; diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 2e6e603b74934..630705a471294 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -1360,6 +1360,32 @@ void clk_hw_unregister(struct clk_hw *hw); /* helper functions */ const char *__clk_get_name(const struct clk *clk); const char *clk_hw_get_name(const struct clk_hw *hw); + +/** + * clk_hw_get_dev() - get device from an hardware clock. + * @hw: the clk_hw pointer to get the struct device from + * + * This is a helper to get the struct device associated with a hardware + * clock. Some clock controllers, such as the one registered with + * CLK_OF_DECLARE(), may have not provided a device pointer while + * registering the clock. + * + * Return: the struct device associated with the clock, or NULL if there + * is none. + */ +struct device *clk_hw_get_dev(const struct clk_hw *hw); + +/** + * clk_hw_get_of_node() - get device_node from a hardware clock. + * @hw: the clk_hw pointer to get the struct device_node from + * + * This is a helper to get the struct device_node associated with a + * hardware clock. + * + * Return: the struct device_node associated with the clock, or NULL + * if there is none. + */ +struct device_node *clk_hw_get_of_node(const struct clk_hw *hw); #ifdef CONFIG_COMMON_CLK struct clk_hw *__clk_get_hw(struct clk *clk); #else -- 2.47.2