linux-kernel - [PATCH 4.14 061/343] arm64: dts: apq8016-sbc: Increase load on l11 for SDCARD

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Message-Id: <20200124092927.874227485@linuxfoundation.org>
Date:   Fri, 24 Jan 2020 10:27:59 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Manabu Igusa <migusa@...owjapan.com>,
        Loic Poulain <loic.poulain@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <andy.gross@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.14 061/343] arm64: dts: apq8016-sbc: Increase load on l11 for SDCARD

From: Loic Poulain <loic.poulain@...aro.org>

[ Upstream commit af61bef513ba179559e56908b8c465e587bc3890 ]

In the same way as for msm8974-hammerhead, l11 load, used for SDCARD
VMMC, needs to be increased in order to prevent any voltage drop issues
(due to limited current) happening with some SDCARDS or during specific
operations (e.g. write).

Tested on Dragonboard-410c and DART-SD410 boards.

Fixes: 4c7d53d16d77 (arm64: dts: apq8016-sbc: add regulators support)
Reported-by: Manabu Igusa <migusa@...owjapan.com>
Signed-off-by: Loic Poulain <loic.poulain@...aro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Signed-off-by: Andy Gross <andy.gross@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
index b6b44fdf7face..c1028b47edde9 100644
--- a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
@@ -458,6 +458,8 @@
 	l11 {
 		regulator-min-microvolt = <1750000>;
 		regulator-max-microvolt = <3337000>;
+		regulator-allow-set-load;
+		regulator-system-load = <200000>;
 	};
 
 	l12 {
-- 
2.20.1