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30 lines
1.1 KiB
Diff
30 lines
1.1 KiB
Diff
From 4375cd63b55860f5e82618dc5f50846b3129842a Mon Sep 17 00:00:00 2001
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From: Claudiu Beznea <claudiu.beznea@microchip.com>
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Date: Mon, 11 Oct 2021 14:27:14 +0300
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Subject: [PATCH 242/247] clk: at91: clk-master: fix prescaler logic
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When prescaler value read from register is MASTER_PRES_MAX it means
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that the input clock will be divided by 3. Fix the code to reflect
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this.
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Fixes: 7a110b9107ed8 ("clk: at91: clk-master: re-factor master clock")
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Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
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Link: https://lore.kernel.org/r/20211011112719.3951784-11-claudiu.beznea@microchip.com
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Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
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Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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---
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drivers/clk/at91/clk-master.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/clk/at91/clk-master.c
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+++ b/drivers/clk/at91/clk-master.c
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@@ -386,7 +386,7 @@ static unsigned long clk_master_pres_rec
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val &= master->layout->mask;
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pres = (val >> master->layout->pres_shift) & MASTER_PRES_MASK;
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- if (pres == 3 && characteristics->have_div3_pres)
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+ if (pres == MASTER_PRES_MAX && characteristics->have_div3_pres)
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pres = 3;
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else
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pres = (1 << pres);
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