Thread (34 messages) 34 messages, 3 authors, 2021-10-27

Re: [PATCH v5 10/15] clk: at91: clk-master: fix prescaler logic

From: Nicolas Ferre <nicolas.ferre@microchip.com>
Date: 2021-10-15 07:58:40
Also in: linux-clk, lkml

On 11/10/2021 at 13:27, Claudiu Beznea wrote:
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 <redacted>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
quoted hunk ↗ jump to hunk
---
  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 6da9ae34313a..e67bcd03a827 100644
--- a/drivers/clk/at91/clk-master.c
+++ b/drivers/clk/at91/clk-master.c
@@ -386,7 +386,7 @@ static unsigned long clk_master_pres_recalc_rate(struct clk_hw *hw,
  
  	val &= master->layout->mask;
  	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);

-- 
Nicolas Ferre

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