The round_rate callback function will returns alway same parent clk rate
of divider with CLK_DIVIDER_READ_ONLY flag. If be used
CLK_SET_RATE_PARENT flag with CLK_DIVIDER_READ_ONLY flag, then never
change parent clk rate anymore.
>From this case, this patch allows to change parent clk rate.
Signed-off-by: Joonyoung Shim <jy0922.s...@samsung.com>
---
drivers/clk/clk-divider.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c
index ce34d29a..37e285e 100644
--- a/drivers/clk/clk-divider.c
+++ b/drivers/clk/clk-divider.c
@@ -352,6 +352,11 @@ static long clk_divider_round_rate(struct clk_hw *hw,
unsigned long rate,
bestdiv = readl(divider->reg) >> divider->shift;
bestdiv &= div_mask(divider->width);
bestdiv = _get_div(divider->table, bestdiv, divider->flags);
+
+ if ((__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT))
+ *prate = __clk_round_rate(__clk_get_parent(hw->clk),
+ rate);
+
return DIV_ROUND_UP(*prate, bestdiv);
}
--
1.9.1
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