From: Alim Akhtar <alim.akhtar@samsung.com>
To: krzk@kernel.org
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
robh+dt@kernel.org, Alim Akhtar <alim.akhtar@samsung.com>
Subject: [PATCH v1 2/2] arm64: dts: exynos: keep LDO12 always-on
Date: Sun, 5 Jul 2020 12:39:18 +0530 [thread overview]
Message-ID: <20200705070918.63531-2-alim.akhtar@samsung.com> (raw)
In-Reply-To: <20200705070918.63531-1-alim.akhtar@samsung.com>
LDO12 on exynos7 supply power to VDDQ_UFS20_RESET,
in case this regulator is OFF, UFS host controller
can not send command to UFS device. To keep this supply
ON, set regulator-always-on property for this ldo.
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
---
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 bb86950032d3..92fecc539c6c 100644
--- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
@@ -194,6 +194,7 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1300000>;
regulator-enable-ramp-delay = <125>;
+ regulator-always-on;
};
ldo13_reg: LDO13 {
--
2.17.1
next prev parent reply other threads:[~2020-07-05 7:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20200705072937epcas5p1b6c9a25770451bcb9d8bc5b14b8a8b53@epcas5p1.samsung.com>
2020-07-05 7:09 ` [PATCH v1 1/2] arm64: dts: exynos: Fix silent hang after boot Alim Akhtar
[not found] ` <CGME20200705072938epcas5p479f0d040ca34fd44b2ba893a199efb79@epcas5p4.samsung.com>
2020-07-05 7:09 ` Alim Akhtar [this message]
2020-07-05 18:23 ` [PATCH v1 2/2] arm64: dts: exynos: keep LDO12 always-on Krzysztof Kozlowski
2020-07-06 15:53 ` Alim Akhtar
2020-07-07 6:40 ` 'Krzysztof Kozlowski'
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