There is now an helper function to round the rate when the
divider is read-only. Let's use it
Signed-off-by: Jerome Brunet <jbru...@baylibre.com>
---
drivers/clk/nxp/clk-lpc32xx.c | 23 +++++++----------------
1 file changed, 7 insertions(+), 16 deletions(-)
diff --git a/drivers/clk/nxp/clk-lpc32xx.c b/drivers/clk/nxp/clk-lpc32xx.c
index 729333766f97..c20285e74b8e 100644
--- a/drivers/clk/nxp/clk-lpc32xx.c
+++ b/drivers/clk/nxp/clk-lpc32xx.c
@@ -963,26 +963,17 @@ static long clk_divider_round_rate(struct clk_hw *hw,
unsigned long rate,
unsigned long *prate)
{
struct lpc32xx_clk_div *divider = to_lpc32xx_div(hw);
- struct clk_hw *hw_parent = clk_hw_get_parent(hw);
- unsigned int bestdiv;
+ unsigned int val;
/* if read only, just return current value */
if (divider->flags & CLK_DIVIDER_READ_ONLY) {
- regmap_read(clk_regmap, divider->reg, &bestdiv);
- bestdiv >>= divider->shift;
- bestdiv &= div_mask(divider->width);
- bestdiv = _get_div(divider->table, bestdiv, divider->flags,
- divider->width);
-
- /* Even a read-only clock can propagate a rate change */
- if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) {
- if (!hw_parent)
- return -EINVAL;
-
- *prate = clk_hw_round_rate(hw_parent, rate * bestdiv);
- }
+ regmap_read(clk_regmap, divider->reg, &val);
+ val >>= divider->shift;
+ val &= div_mask(divider->width);
- return DIV_ROUND_UP(*prate, bestdiv);
+ return divider_ro_round_rate(hw, rate, prate, divider->table,
+ divider->width, divider->flags,
+ bestdiv);
}
return divider_round_rate(hw, rate, prate, divider->table,
--
2.14.3
