From: Claudiu Beznea claudiu.beznea@microchip.com
[ Upstream commit 0ef99f8202c5078a72c05af76bfaed2ea4daab19 ]
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: 7a110b9107ed8 ("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... Acked-by: Nicolas Ferre nicolas.ferre@microchip.com Signed-off-by: Stephen Boyd sboyd@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clk/at91/clk-master.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/at91/clk-master.c b/drivers/clk/at91/clk-master.c index 2e410815a3405..04d0dd8385945 100644 --- a/drivers/clk/at91/clk-master.c +++ b/drivers/clk/at91/clk-master.c @@ -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);