linux-kernel - Re: [RFC PATCH 0/4] bus: ti-sysc: Add generic enable/disable & PRUSS

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: <c720c3c3-c793-f2b1-57d3-2105bcbb73a0@ti.com>
Date:   Tue, 2 Apr 2019 16:39:28 +0300
From:   Roger Quadros <rogerq@...com>
To:     <tony@...mide.com>
CC:     <nsekhar@...com>, <s-anna@...com>, <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 0/4] bus: ti-sysc: Add generic enable/disable & PRUSS

On 02/04/2019 16:37, Roger Quadros wrote:
> Hi Tony,
> 
> Non legacy modules will rely on generic enable/disable functions.
> 
> I had to disable usb_otg_ss3 and 4 on am57xx idk to be able to boot.
> It is explicitly stated in TRM to not use USB3 and 4 on AM57xx, and
> I haven't seen any dra7 based board using them so let's keep it disabled.
> 
> Handle the PRU-ICSS type as it needs some special handling especially
> during suspend/resume.

I forgot to mention that this must be applied on top of
https://lkml.org/lkml/2019/3/25/1180

> 
> cheers,
> -roger
> 
> Roger Quadros (4):
>   ARM: dts: dra7: Keep usb_otg_ss3 and usb_otg_ss4 disabled
>   bus: ti-sysc: Add generic enable/disable functions
>   bus: ti-sysc: Add support for PRU-ICSS type
>   bus: ti-sysc: Ensure PRU-ICSS doesn't break suspend/resume
> 
>  .../devicetree/bindings/bus/ti-sysc.txt       |   1 +
>  arch/arm/boot/dts/dra7-l4.dtsi                |   2 +
>  drivers/bus/ti-sysc.c                         | 171 ++++++++++++++++++
>  include/linux/platform_data/ti-sysc.h         |   7 +-
>  4 files changed, 180 insertions(+), 1 deletion(-)
> 

-- 
cheers,
-roger

Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki