[5.10.y-cip,04/11] clk: fixed-factor: Introduce devm_clk_hw_register_fixed_factor_index()

Commit Message

Biju Das Nov. 22, 2023, 2:28 p.m. UTC

From: Marek Vasut <[e-mail]>

commit 0c125f87a84097c182c481be7497af9f816e5db5 upstream.

Add an API for a fixed factor clk that uses an index for the parent
instead of a string name. This allows us to move drivers away from the
string based method of describing parents and use the DT/firmware based
method instead.

Signed-off-by: Marek Vasut <[e-mail]>
Cc: Michael Turquette <[e-mail]>
Cc: Rob Herring <[e-mail]>
Cc: Stephen Boyd <[e-mail]>
Cc: [e-mail]
Link: https://lore.kernel.org/r/[e-mail]
[[e-mail]: Expose a new API instead of internal function]
Signed-off-by: Stephen Boyd <[e-mail]>
Signed-off-by: Biju Das <[e-mail]>
---
 drivers/clk/clk-fixed-factor.c | 22 ++++++++++++++++++++++
 include/linux/clk-provider.h   |  3 +++
 2 files changed, 25 insertions(+)

Patch

diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c
index 4f7bf3929d6d..b65f027dd40c 100644
--- a/drivers/clk/clk-fixed-factor.c
+++ b/drivers/clk/clk-fixed-factor.c
@@ -124,6 +124,28 @@  __clk_hw_register_fixed_factor(struct device *dev, struct device_node *np,
 	return hw;
 }
 
+/**
+ * devm_clk_hw_register_fixed_factor_index - Register a fixed factor clock with
+ * parent from DT index
+ * @dev: device that is registering this clock
+ * @name: name of this clock
+ * @index: index of phandle in @dev 'clocks' property
+ * @flags: fixed factor flags
+ * @mult: multiplier
+ * @div: divider
+ *
+ * Return: Pointer to fixed factor clk_hw structure that was registered or
+ * an error pointer.
+ */
+struct clk_hw *devm_clk_hw_register_fixed_factor_index(struct device *dev,
+		const char *name, unsigned int index, unsigned long flags,
+		unsigned int mult, unsigned int div)
+{
+	return __clk_hw_register_fixed_factor(dev, NULL, name, NULL, index,
+					      flags, mult, div, true);
+}
+EXPORT_SYMBOL_GPL(devm_clk_hw_register_fixed_factor_index);
+
 struct clk_hw *clk_hw_register_fixed_factor(struct device *dev,
 		const char *name, const char *parent_name, unsigned long flags,
 		unsigned int mult, unsigned int div)
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 59dc4d73b6a3..0b0055359bbb 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -957,6 +957,9 @@  void clk_hw_unregister_fixed_factor(struct clk_hw *hw);
 struct clk_hw *devm_clk_hw_register_fixed_factor(struct device *dev,
 		const char *name, const char *parent_name, unsigned long flags,
 		unsigned int mult, unsigned int div);
+struct clk_hw *devm_clk_hw_register_fixed_factor_index(struct device *dev,
+		const char *name, unsigned int index, unsigned long flags,
+		unsigned int mult, unsigned int div);
 /**
  * struct clk_fractional_divider - adjustable fractional divider clock
  *