* [PATCH] arm64: dts: qcom: msm8998-mtp: Increase load on l21 for sdcard
@ 2018-12-18 18:04 Jeffrey Hugo
0 siblings, 0 replies; only message in thread
From: Jeffrey Hugo @ 2018-12-18 18:04 UTC (permalink / raw)
To: andy.gross, david.brown
Cc: robh+dt, mark.rutland, bjorn.andersson, linux-arm-msm,
devicetree, linux-kernel, Jeffrey Hugo
l21 is used as sdcard vmmc, and needs the load increased to prevent
voltage drop issues with some sdcards. This addresses -84 errors seen
during sdcard init with SDR104 cards.
Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org>
---
arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi b/arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi
index 50e9033..288adbf 100644
--- a/arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi
@@ -192,6 +192,8 @@
vreg_l21a_2p95: l21 {
regulator-min-microvolt = <2960000>;
regulator-max-microvolt = <2960000>;
+ regulator-allow-set-load;
+ regulator-system-load = <800000>;
};
vreg_l22a_2p85: l22 {
regulator-min-microvolt = <2864000>;
--
Qualcomm Datacenter Technologies as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.
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