[PATCH] clk: renesas: div6: Document fields used for parent selection

[PATCH] clk: renesas: div6: Document fields used for parent selection

[Geert Uytterhoeven]

Add the missing documentation for the fields in struct div6_clock
related to parent selection for DIV6 clocks with selectable parents, as
found in R/SH-Mobile SoCs.

Fixes: c6d67fb037f4eaaf ("clk: shmobile: div6: support selectable-input clocks")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
To be queued in clk-renesas-for-v4.14.

 drivers/clk/renesas/clk-div6.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/clk/renesas/clk-div6.c b/drivers/clk/renesas/clk-div6.c
index 0627860233cbf97e..3e0040c0ac87a14b 100644
--- a/drivers/clk/renesas/clk-div6.c
+++ b/drivers/clk/renesas/clk-div6.c
@@ -29,6 +29,9 @@
  * @hw: handle between common and hardware-specific interfaces
  * @reg: IO-remapped register
  * @div: divisor value (1-64)
+ * @src_shift: Shift to access the register bits to select the parent clock
+ * @src_width: Number of register bits to select the parent clock (may be 0)
+ * @parents: Array to map from valid parent clocks indices to hardware indices
  */
 struct div6_clock {
 	struct clk_hw hw;
-- 
2.7.4