linux-kernel - Re: [PATCH] drm/bridge: it6505: Check power state with it6505->powered in IRQ handler

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]

Date:   Thu, 03 Aug 2023 10:32:03 +0200
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Andrzej Hajda <andrzej.hajda@...el.com>,
        Robert Foss <rfoss@...nel.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Pin-yen Lin <treapking@...omium.org>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/bridge: it6505: Check power state with
 it6505->powered in IRQ handler

Hi,

On Thu, 27 Jul 2023 18:01:10 +0800, Pin-yen Lin wrote:
> On system resume, the driver might call it6505_poweron directly if the
> runtime PM hasn't been enabled. In such case, pm_runtime_get_if_in_use
> will always return 0 because dev->power.runtime_status stays at
> RPM_SUSPENDED, and the IRQ will never be handled.
> 
> Use it6505->powered from the driver struct fixes this because it always
> gets updated when it6505_poweron is called.
> 
> [...]

Thanks, Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-fixes)

[1/1] drm/bridge: it6505: Check power state with it6505->powered in IRQ handler
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=e9d699af3f65d62cf195f0e7a039400093ab2af2

-- 
Neil