[PATCH v2] clk: zynq: pll: Fix kernel-doc after determine_rate() conversion

Commit 1547747b55d5 ("clk: zynq: pll: convert from round_rate() to
determine_rate()") replaced zynq_pll_round_rate() with
zynq_pll_determine_rate() but left its kernel-doc block behind, so the
block still names the old function and documents the removed @rate and
@prate parameters instead of @req.

Retitle the block and describe @req. The Return: line described a
frequency and referenced the removed @rate; the function returns 0
unconditionally and the rounded rate comes back in @req.

No functional changes.

Assisted-by: Claude:claude-opus-5 [kernel-doc]
Signed-off-by: Babanpreet Singh <[email protected]>
---
Changes in v2:
- Say "Return: 0 always" instead of "Return: 0 on success". The function
  has no failure path, so there is no success case to distinguish
  (Michal Simek).
- Rebased on v7.2-rc6; the file is unchanged, so the diff is the same
  apart from that line.

v1: https://lore.kernel.org/all/[email protected]/

 drivers/clk/zynq/pll.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/zynq/pll.c b/drivers/clk/zynq/pll.c
index 44c6093783641..fe90b50e1545d 100644
--- a/drivers/clk/zynq/pll.c
+++ b/drivers/clk/zynq/pll.c
@@ -42,11 +42,11 @@ struct zynq_pll {
 #define PLL_FBDIV_MAX	66
 
 /**
- * zynq_pll_round_rate() - Round a clock frequency
+ * zynq_pll_determine_rate() - Round a clock frequency
  * @hw:		Handle between common and hardware-specific interfaces
- * @rate:	Desired clock frequency
- * @prate:	Clock frequency of parent clock
- * Return:	frequency closest to @rate the hardware can generate.
+ * @req:	Clock rate request, updated with the frequency closest to the
+ *		requested one that the hardware can generate
+ * Return:	0 always
  */
 static int zynq_pll_determine_rate(struct clk_hw *hw,
 				   struct clk_rate_request *req)
-- 
2.43.0