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From: Loic Poulain <loic.poulain@linaro.org>
To: andy.gross@linaro.org, david.brown@linaro.org, robh+dt@kernel.org
Cc: linux-arm-msm@vger.kernel.org, bjorn.andersson@linaro.org,
	devicetree@vger.kernel.org,
	Loic Poulain <loic.poulain@linaro.org>
Subject: [PATCH] arm64: dts: apq8096-db820c: Increase load on l21 for SDCARD
Date: Wed, 12 Dec 2018 18:13:26 +0100	[thread overview]
Message-ID: <1544634806-1037-1-git-send-email-loic.poulain@linaro.org> (raw)

In the same way as for msm8974-hammerhead, l21 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).

Fixes: 660a9763c6a9 (arm64: dts: qcom: db820c: Add pm8994 regulator node)
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
---
 arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
index 104cad9..c15e2c0 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
@@ -634,6 +634,8 @@
 				l21 {
 					regulator-min-microvolt = <2950000>;
 					regulator-max-microvolt = <2950000>;
+					regulator-allow-set-load;
+					regulator-system-load = <200000>;
 				};
 				l22 {
 					regulator-min-microvolt = <3300000>;
-- 
2.7.4

             reply	other threads:[~2018-12-12 17:13 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-12 17:13 Loic Poulain [this message]
2018-12-12 17:23 ` [PATCH] arm64: dts: apq8096-db820c: Increase load on l21 for SDCARD Jeffrey Hugo
2018-12-13  7:55   ` Loic Poulain
2018-12-13 14:46     ` Jeffrey Hugo
2018-12-13 19:14       ` Doug Anderson
2019-10-11 12:55         ` Loic Poulain
2019-10-11 16:38           ` Bjorn Andersson
2018-12-12 19:46 ` Bjorn Andersson

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