47 lines
1.6 KiB
Diff
47 lines
1.6 KiB
Diff
From 27c11c09346b7b9f67eeb39db1b943f4a9742ff3 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 14:27:13 +0300
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Subject: [PATCH 241/247] clk: at91: clk-master: mask mckr against layout->mask
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Mask values read/written from/to MCKR against layout->mask as this
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mask may be different b/w PMC versions.
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Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
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Link: https://lore.kernel.org/r/20211011112719.3951784-10-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 | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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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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@@ -186,8 +186,8 @@ static int clk_master_div_set_rate(struc
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if (ret)
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goto unlock;
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- tmp = mckr & master->layout->mask;
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- tmp = (tmp >> MASTER_DIV_SHIFT) & MASTER_DIV_MASK;
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+ mckr &= master->layout->mask;
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+ tmp = (mckr >> MASTER_DIV_SHIFT) & MASTER_DIV_MASK;
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if (tmp == div)
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goto unlock;
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@@ -384,6 +384,7 @@ static unsigned long clk_master_pres_rec
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regmap_read(master->regmap, master->layout->offset, &val);
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spin_unlock_irqrestore(master->lock, flags);
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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 == MASTER_PRES_MAX && characteristics->have_div3_pres)
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pres = 3;
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@@ -403,6 +404,8 @@ static u8 clk_master_pres_get_parent(str
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regmap_read(master->regmap, master->layout->offset, &mckr);
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spin_unlock_irqrestore(master->lock, flags);
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+ mckr &= master->layout->mask;
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+
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return mckr & AT91_PMC_CSS;
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}
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