Messages in this thread Patch in this message | | | From | Codrin Ciubotariu <> | Subject | [PATCH] clk: at91: clk-generated: Limit the requested rate to our range | Date | Wed, 7 Jul 2021 16:12:13 +0300 |
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On clk_generated_determine_rate(), the requested rate could be outside of clk's range. Limit the rate to the clock's range to not return an error.
Fixes: df70aeef6083 ("clk: at91: add generated clock driver") Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> --- drivers/clk/at91/clk-generated.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/clk/at91/clk-generated.c b/drivers/clk/at91/clk-generated.c index b4fc8d71daf2..b656d25a9767 100644 --- a/drivers/clk/at91/clk-generated.c +++ b/drivers/clk/at91/clk-generated.c @@ -128,6 +128,12 @@ static int clk_generated_determine_rate(struct clk_hw *hw, int i; u32 div; + /* do not look for a rate that is outside of our range */ + if (gck->range.max && req->rate > gck->range.max) + req->rate = gck->range.max; + if (gck->range.min && req->rate < gck->range.min) + req->rate = gck->range.min; + for (i = 0; i < clk_hw_get_num_parents(hw); i++) { if (gck->chg_pid == i) continue; -- 2.30.2
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