As we move towards a cleaner split to have clock providers use clk_hw for all clock operations, while consumers operate on the (per-user) struct clk handles, we still have cases where in a clock provider might want to call into high level clk apis which only operate on a struct clk handle. To facilitate such needs, have a clk_hw_get_clk() api which can be used from within clock providers to get access to struct clk handles. Signed-off-by: Rajendra Nayak <rnayak@xxxxxxxxxxxxxx> --- drivers/clk/clk.c | 39 +++++++++++++++++++++++++++++++++++++++ include/linux/clk-provider.h | 5 +++++ 2 files changed, 44 insertions(+) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index fc58c52..c9bbfb3 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -186,6 +186,45 @@ const char *clk_hw_get_name(const struct clk_hw *hw) } EXPORT_SYMBOL_GPL(clk_hw_get_name); +struct clk *clk_hw_get_clk(struct clk_hw *hw, const char *dev_id, + const char *con_id) +{ + return __clk_create_clk(hw, dev_id, con_id); +} +EXPORT_SYMBOL_GPL(clk_hw_get_clk); + +void clk_hw_put_clk(struct clk *clk) +{ + __clk_free_clk(clk); +} +EXPORT_SYMBOL_GPL(clk_hw_put_clk); + +static void devm_clk_hw_put(struct device *dev, void *res) +{ + clk_hw_put_clk(*(struct clk **)res); +} + +struct clk *devm_clk_hw_get_clk(struct device *dev, struct clk_hw *hw, + const char *con_id) +{ + struct clk **ptr, *clk; + + ptr = devres_alloc(devm_clk_hw_put, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return ERR_PTR(-ENOMEM); + + clk = clk_hw_get_clk(hw, dev_name(dev), con_id); + if (!IS_ERR(clk)) { + *ptr = clk; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return clk; +} +EXPORT_SYMBOL_GPL(devm_clk_hw_get_clk); + 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 c59c625..c85bfed 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -730,6 +730,11 @@ struct clk_hw *clk_hw_register_gpio_mux(struct device *dev, const char *name, /* helper functions */ const char *__clk_get_name(const struct clk *clk); const char *clk_hw_get_name(const struct clk_hw *hw); +struct clk *clk_hw_get_clk(struct clk_hw *hw, const char *dev_id, + const char *con_id); +void clk_hw_put_clk(struct clk *clk); +struct clk *devm_clk_hw_get_clk(struct device *dev, struct clk_hw *hw, + const char *con_id); struct clk_hw *__clk_get_hw(struct clk *clk); unsigned int clk_hw_get_num_parents(const struct clk_hw *hw); struct clk_hw *clk_hw_get_parent(const struct clk_hw *hw); -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html