linux-kernel - [PATCH v3 3/3] arm64: dts: qcom: qrb4210-rb2: Increase load on l22 and l24 for uSD and eMMC

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230411072840.2751813-4-bhupesh.sharma@linaro.org>
Date:   Tue, 11 Apr 2023 12:58:40 +0530
From:   Bhupesh Sharma <bhupesh.sharma@...aro.org>
To:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org
Cc:     agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        linux-kernel@...r.kernel.org, bhupesh.linux@...il.com,
        bhupesh.sharma@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski@...aro.org
Subject: [PATCH v3 3/3] arm64: dts: qcom: qrb4210-rb2: Increase load on l22 and l24 for uSD and eMMC

Increase the l22 and l24 load used for uSD and eMMC VMMC.
These need to be increased in order to prevent any voltage drop
issues due to limited current happening during specific operations
(e.g. write).

Signed-off-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>
---
 arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
index c9c6e3787462..dc80f0bca767 100644
--- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
+++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
@@ -171,6 +171,8 @@ vreg_l21a_2p704: l21 {
 		vreg_l22a_2p96: l22 {
 			regulator-min-microvolt = <2952000>;
 			regulator-max-microvolt = <3304000>;
+			regulator-system-load = <100000>;
+			regulator-allow-set-load;
 		};
 
 		vreg_l23a_3p3: l23 {
@@ -181,6 +183,8 @@ vreg_l23a_3p3: l23 {
 		vreg_l24a_2p96: l24 {
 			regulator-min-microvolt = <2704000>;
 			regulator-max-microvolt = <3600000>;
+			regulator-system-load = <100000>;
+			regulator-allow-set-load;
 		};
 	};
 };
-- 
2.38.1