linux-kernel - Re: [PATCH] PCI: dwc: artpec6: Add reset-gpios for PERST# control

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] [day] [month] [year] [list]

Message-ID: <20180416213503.im3dfmbqnqho32w7@rob-hp-laptop>
Date:   Mon, 16 Apr 2018 16:35:03 -0500
From:   Rob Herring <robh@...nel.org>
To:     Jesper Nilsson <jesper.nilsson@...s.com>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Mark Rutland <mark.rutland@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        linux-arm-kernel@...s.com, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] PCI: dwc: artpec6: Add reset-gpios for PERST# control

On Sun, Apr 15, 2018 at 08:56:21PM +0200, Jesper Nilsson wrote:
> Some devices need an optional external gpio for controlling
> the PERST# signal to bring up for example a PCIe switch
> after a soft reset.
> 
> Without this, some boards (the ARTPEC-6 master devboard)
> would not get the PCIe link back after a soft reset.
> 
> Signed-off-by: Jesper Nilsson <jesper.nilsson@...s.com>
> ---
>  .../devicetree/bindings/pci/axis,artpec6-pcie.txt    |  4 ++++
>  drivers/pci/dwc/pcie-artpec6.c                       | 20 +++++++++++++++++++-
>  2 files changed, 23 insertions(+), 1 deletion(-)

Reviewed-by: Rob Herring <robh@...nel.org>