linux-kernel - Re: [PATCH 1/8] regulator: bd71837: Disable voltage monitoring for LDO3/4

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: <20180911124029.GO4185@dell>
Date:   Tue, 11 Sep 2018 13:40:29 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
Cc:     robh+dt@...nel.org, mark.rutland@....com, lgirdwood@...il.com,
        broonie@...nel.org, mazziesaccount@...il.com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        heikki.haikola@...rohmeurope.com, mikko.mutanen@...rohmeurope.com
Subject: Re: [PATCH 1/8] regulator: bd71837: Disable voltage monitoring for
 LDO3/4

On Wed, 29 Aug 2018, Matti Vaittinen wrote:

> There is a HW quirk in BD71837. The shutdown sequence timings for
> bucks/LDOs which are enabled via register interface are changed.
> At PMIC poweroff the voltage for BUCK6/7 is cut immediately at the
> beginning of shut-down sequence. This causes LDO5/6 voltage
> monitoring to detect under voltage and force PMIC to emergency
> state instead of poweroff. Disable voltage monitoring for LDO5 and
> LDO6 at probe to avoid this.
> 
> Signed-off-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
> ---
>  drivers/regulator/bd71837-regulator.c | 19 +++++++++++++++++++

>  include/linux/mfd/rohm-bd718x7.h      | 33 ++++++++++++++++++++++++++++++---

For my own reference:
  Acked-for-MFD-by: Lee Jones <lee.jones@...aro.org>

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog