mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-21 10:01:00 +00:00
Code Issues Releases Wiki Activity

clk: at91: clk-master: fix prescaler logic

Browse source 
[ Upstream commit 0ef99f8202 ]

When prescaler value read from register is MASTER_PRES_MAX it means
that the input clock will be divided by 3. Fix the code to reflect
this.

Fixes: 7a110b9107 ("clk: at91: clk-master: re-factor master clock")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20211011112719.3951784-11-claudiu.beznea@microchip.com
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Claudiu Beznea 2021-10-11 14:27:14 +03:00 committed by Greg Kroah-Hartman
parent ffe896d043
commit 33dcebb916
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/clk/at91/clk-master.c
View file

@ -309,7 +309,7 @@ static unsigned long clk_master_pres_recalc_rate(struct clk_hw *hw,
spin_unlock_irqrestore(master->lock, flags);
pres = (val >> master->layout->pres_shift) & MASTER_PRES_MASK;
if (pres == 3 && characteristics->have_div3_pres)
if (pres == MASTER_PRES_MAX && characteristics->have_div3_pres)
pres = 3;
else
pres = (1 << pres);