Linux-Clk Archive on
 help / color / Atom feed
From: Sasha Levin <>
Cc: Marian Mihailescu <>,
	Sylwester Nawrocki <>,
	Sasha Levin <>,,,
Subject: [PATCH AUTOSEL 4.9 232/251] clk: samsung: exynos5420: Preserve CPU clocks configuration during suspend/resume
Date: Thu, 16 Jan 2020 12:36:21 -0500
Message-ID: <> (raw)
In-Reply-To: <>

From: Marian Mihailescu <>

[ Upstream commit e21be0d1d7bd7f78a77613f6bcb6965e72b22fc1 ]

Save and restore top PLL related configuration registers for big (APLL)
and LITTLE (KPLL) cores during suspend/resume cycle. So far, CPU clocks
were reset to default values after suspend/resume cycle and performance
after system resume was affected when performance governor has been selected.

Fixes: 773424326b51 ("clk: samsung: exynos5420: add more registers to restore list")
Signed-off-by: Marian Mihailescu <>
Signed-off-by: Sylwester Nawrocki <>
Signed-off-by: Sasha Levin <>
 drivers/clk/samsung/clk-exynos5420.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c
index 2bb88d125113..7f8c7cf3c2ab 100644
--- a/drivers/clk/samsung/clk-exynos5420.c
+++ b/drivers/clk/samsung/clk-exynos5420.c
@@ -170,6 +170,8 @@ static const unsigned long exynos5x_clk_regs[] __initconst = {

      parent reply index

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <>
2020-01-16 17:33 ` [PATCH AUTOSEL 4.9 046/251] clk: sunxi-ng: sun8i-a23: Enable PLL-MIPI LDOs when ungating it Sasha Levin
2020-01-16 17:35 ` [PATCH AUTOSEL 4.9 161/251] clk: qcom: Fix -Wunused-const-variable Sasha Levin
2020-01-16 17:36 ` Sasha Levin [this message]

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \ \ \ \ \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-Clk Archive on

Archives are clonable:
	git clone --mirror linux-clk/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-clk linux-clk/ \
	public-inbox-index linux-clk

Example config snippet for mirrors

Newsgroup available over NNTP:

AGPL code for this site: git clone