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  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:   Tue, 22 Jan 2019 14:57:46 -0700
From:   Jeffrey Hugo <>
To:     Bjorn Andersson <>,
        Liam Girdwood <>,
        Mark Brown <>
Subject: Re: [PATCH] regulator: qcom-smd: Batch up requests for disabled

On 1/22/2019 12:01 PM, Bjorn Andersson wrote:
> In some scenarios the early stages of the boot chain has configured
> regulators to be in a required state, but the later stages has skipped
> to inform the RPM about it's requirements.
> But as the SMD RPM regulators are being initialized voltage change
> requests will be issued to align the voltage with the valid ranges. The
> RPM aggregates all parameters for the specific regulator, the voltage
> will be adjusted and the "enabled" state will be "off" - and the
> regulator is turned off.
> This patch addresses this problem by caching the requested enable state,
> voltage and load and send the parameters in a batch, depending on the
> enable state - effectively delaying the voltage request for disabled
> regulators.
> Signed-off-by: Bjorn Andersson <>

This happens to fix an annoyance I've been avoiding on 8998.

Reviewed-by: Jeffrey Hugo <>
Tested-by: Jeffrey Hugo <>

Jeffrey Hugo
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.

Powered by blists - more mailing lists