This is a note to let you know that I've just added the patch titled clk: at91: sam9x60-pll: use DIV_ROUND_CLOSEST_ULL to the 5.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: clk-at91-sam9x60-pll-use-div_round_closest_ull.patch and it can be found in the queue-5.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 8b9cf5990b7651dcedeba188df5dc4c6fa010451 Author: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx> Date: Mon Oct 11 14:27:11 2021 +0300 clk: at91: sam9x60-pll: use DIV_ROUND_CLOSEST_ULL [ Upstream commit f12d028b743bb6136da60b17228a1b6162886444 ] Use DIV_ROUND_CLOSEST_ULL() to avoid any inconsistency b/w the rate computed in sam9x60_frac_pll_recalc_rate() and the one computed in sam9x60_frac_pll_compute_mul_frac(). Fixes: 43b1bb4a9b3e1 ("clk: at91: clk-sam9x60-pll: re-factor to support plls with multiple outputs") Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20211011112719.3951784-8-claudiu.beznea@xxxxxxxxxxxxx Acked-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx> Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/clk/at91/clk-sam9x60-pll.c b/drivers/clk/at91/clk-sam9x60-pll.c index 34e3ab13741ac..1f52409475e9c 100644 --- a/drivers/clk/at91/clk-sam9x60-pll.c +++ b/drivers/clk/at91/clk-sam9x60-pll.c @@ -71,8 +71,8 @@ static unsigned long sam9x60_frac_pll_recalc_rate(struct clk_hw *hw, struct sam9x60_pll_core *core = to_sam9x60_pll_core(hw); struct sam9x60_frac *frac = to_sam9x60_frac(core); - return (parent_rate * (frac->mul + 1) + - ((u64)parent_rate * frac->frac >> 22)); + return parent_rate * (frac->mul + 1) + + DIV_ROUND_CLOSEST_ULL((u64)parent_rate * frac->frac, (1 << 22)); } static int sam9x60_frac_pll_prepare(struct clk_hw *hw)