"free" a managed clock source
void devm_clk_put(struct device * dev, struct clk * clk);
dev
device used to acuqire the clock
clk
clock source acquired with devm_clk_get
drivers must ensure that all clk_enable calls made on this clock source are balanced by clk_disable calls prior to calling this function.
clk_put should not be called from within interrupt context.