From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Marian Mihailescu <mihailescu2m@gmail.com>,
Sylwester Nawrocki <s.nawrocki@samsung.com>,
Sasha Levin <sashal@kernel.org>,
linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 4.4 159/174] clk: samsung: exynos5420: Preserve CPU clocks configuration during suspend/resume
Date: Thu, 16 Jan 2020 12:42:36 -0500 [thread overview]
Message-ID: <20200116174251.24326-159-sashal@kernel.org> (raw)
In-Reply-To: <20200116174251.24326-1-sashal@kernel.org>
From: Marian Mihailescu <mihailescu2m@gmail.com>
[ 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 <mihailescu2m@gmail.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 c94de13ce362..21bfedf40478 100644
--- a/drivers/clk/samsung/clk-exynos5420.c
+++ b/drivers/clk/samsung/clk-exynos5420.c
@@ -166,6 +166,8 @@ static unsigned long exynos5x_clk_regs[] __initdata = {
GATE_BUS_CPU,
GATE_SCLK_CPU,
CLKOUT_CMU_CPU,
+ APLL_CON0,
+ KPLL_CON0,
CPLL_CON0,
DPLL_CON0,
EPLL_CON0,
--
2.20.1
prev parent reply other threads:[~2020-01-16 17:48 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200116174251.24326-1-sashal@kernel.org>
2020-01-16 17:40 ` [PATCH AUTOSEL 4.4 019/174] clk: highbank: fix refcount leak in hb_clk_init() Sasha Levin
2020-01-16 17:40 ` [PATCH AUTOSEL 4.4 020/174] clk: qoriq: fix refcount leak in clockgen_init() Sasha Levin
2020-01-16 17:40 ` [PATCH AUTOSEL 4.4 021/174] clk: socfpga: fix refcount leak Sasha Levin
2020-01-16 17:40 ` [PATCH AUTOSEL 4.4 022/174] clk: samsung: exynos4: fix refcount leak in exynos4_get_xom() Sasha Levin
2020-01-16 17:40 ` [PATCH AUTOSEL 4.4 023/174] clk: imx6q: fix refcount leak in imx6q_clocks_init() Sasha Levin
2020-01-16 17:40 ` [PATCH AUTOSEL 4.4 024/174] clk: imx6sx: fix refcount leak in imx6sx_clocks_init() Sasha Levin
2020-01-16 17:40 ` [PATCH AUTOSEL 4.4 025/174] clk: imx7d: fix refcount leak in imx7d_clocks_init() Sasha Levin
2020-01-16 17:40 ` [PATCH AUTOSEL 4.4 026/174] clk: vf610: fix refcount leak in vf610_clocks_init() Sasha Levin
2020-01-16 17:40 ` [PATCH AUTOSEL 4.4 027/174] clk: armada-370: fix refcount leak in a370_clk_init() Sasha Levin
2020-01-16 17:40 ` [PATCH AUTOSEL 4.4 028/174] clk: kirkwood: fix refcount leak in kirkwood_clk_init() Sasha Levin
2020-01-16 17:40 ` [PATCH AUTOSEL 4.4 029/174] clk: armada-xp: fix refcount leak in axp_clk_init() Sasha Levin
2020-01-16 17:42 ` Sasha Levin [this message]
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