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From 8b88f1e9918c173b24b43015cdb713cdde9e4d17 Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <claudiu.beznea@microchip.com>
Date: Thu, 19 Nov 2020 17:43:14 +0200
Subject: [PATCH 108/247] clk: at91: sama7g5: decrease lower limit for MCK0
rate
On SAMA7G5 CPU clock is changed at run-time by DVFS. Since MCK0 and
CPU clock shares the same parent clock (CPUPLL clock) the MCK0 is
also changed by DVFS to avoid over/under clocking of MCK0 consumers.
The lower limit is changed to be able to set MCK0 accordingly by
DVFS.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/1605800597-16720-9-git-send-email-claudiu.beznea@microchip.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
---
drivers/clk/at91/sama7g5.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/at91/sama7g5.c b/drivers/clk/at91/sama7g5.c
index 335e9c943c65..29d9781e6712 100644
--- a/drivers/clk/at91/sama7g5.c
+++ b/drivers/clk/at91/sama7g5.c
@@ -807,7 +807,7 @@ static const struct clk_pll_characteristics pll_characteristics = {
/* MCK0 characteristics. */
static const struct clk_master_characteristics mck0_characteristics = {
- .output = { .min = 140000000, .max = 200000000 },
+ .output = { .min = 50000000, .max = 200000000 },
.divisors = { 1, 2, 4, 3, 5 },
.have_div3_pres = 1,
};
--
2.32.0
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