From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Alim Akhtar <alim.akhtar@samsung.com>,
Krzysztof Kozlowski <krzk@kernel.org>,
Sasha Levin <sashal@kernel.org>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 11/21] arm64: dts: exynos: Fix silent hang after boot on Espresso
Date: Sat, 8 Aug 2020 19:39:31 -0400 [thread overview]
Message-ID: <20200808233941.3619277-11-sashal@kernel.org> (raw)
In-Reply-To: <20200808233941.3619277-1-sashal@kernel.org>
From: Alim Akhtar <alim.akhtar@samsung.com>
[ Upstream commit b072714bfc0e42c984b8fd6e069f3ca17de8137a ]
Once regulators are disabled after kernel boot, on Espresso board silent
hang observed because of LDO7 being disabled. LDO7 actually provide
power to CPU cores and non-cpu blocks circuitries. Keep this regulator
always-on to fix this hang.
Fixes: 9589f7721e16 ("arm64: dts: Add S2MPS15 PMIC node on exynos7-espresso")
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/boot/dts/exynos/exynos7-espresso.dts | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
index 00dd89b92b427..d991eae5202f2 100644
--- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
@@ -152,6 +152,7 @@ ldo7_reg: LDO7 {
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <1150000>;
regulator-enable-ramp-delay = <125>;
+ regulator-always-on;
};
ldo8_reg: LDO8 {
--
2.25.1
next prev parent reply other threads:[~2020-08-08 23:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-08 23:39 [PATCH AUTOSEL 4.19 01/21] x86/mce/inject: Fix a wrong assignment of i_mce.status Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 02/21] sched/fair: Fix NOHZ next idle balance Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 03/21] sched: correct SD_flags returned by tl->sd_flags() Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 04/21] arm64: dts: rockchip: fix rk3368-lion gmac reset gpio Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 05/21] arm64: dts: rockchip: fix rk3399-puma vcc5v0-host gpio Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 06/21] arm64: dts: rockchip: fix rk3399-puma gmac reset gpio Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 07/21] EDAC: Fix reference count leaks Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 08/21] arm64: dts: qcom: msm8916: Replace invalid bias-pull-none property Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 09/21] crypto: ccree - fix resource leak on error path Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 10/21] firmware: arm_scmi: Fix SCMI genpd domain probing Sasha Levin
2020-08-08 23:39 ` Sasha Levin [this message]
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 12/21] clk: scmi: Fix min and max rate when registering clocks with discrete rates Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 13/21] m68k: mac: Don't send IOP message until channel is idle Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 14/21] m68k: mac: Fix IOP status/control register writes Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 15/21] platform/x86: intel-hid: Fix return value check in check_acpi_dev() Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 16/21] platform/x86: intel-vbtn: " Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 17/21] ARM: dts: gose: Fix ports node name for adv7180 Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 18/21] ARM: dts: gose: Fix ports node name for adv7612 Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 19/21] ARM: at91: pm: add missing put_device() call in at91_pm_sram_init() Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 20/21] spi: lantiq: fix: Rx overflow error in full duplex mode Sasha Levin
2020-08-08 23:39 ` [PATCH AUTOSEL 4.19 21/21] ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh() Sasha Levin
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