linux-kernel - [PATCH 0/2] More meson HDMI fixes

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 PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 20 Nov 2020 09:42:03 +0000
From:   Marc Zyngier <maz@...nel.org>
To:     Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>
Cc:     Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Guillaume Tucker <guillaume.tucker@...labora.com>,
        kernel-team@...roid.com, dri-devel@...ts.freedesktop.org,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] More meson HDMI fixes

Guillaume reported that my earlier fixes for the meson HDMI driver
broke another set of machines which are now exploding (clock not
enabled).

I have thus reconsidered the approach and came up with an alternative
fix (enable a missing clock), which Guillaume confirmed to be working.
Jerome pointed out that this driver is leaking clock references like a
sieve, so that needed addressing too.

The first patch start by fixing the clock leakage using a devm
facility.

The second patch addresses the earlier crash by reusing the
infrastructure put together in the first patch.

Tested on VIM3l.

Marc Zyngier (2):
  drm/meson: dw-hdmi: Disable clocks on driver teardown
  drm/meson: dw-hdmi: Enable the iahb clock early enough

 drivers/gpu/drm/meson/meson_dw_hdmi.c | 51 ++++++++++++++++++---------
 1 file changed, 35 insertions(+), 16 deletions(-)

-- 
2.28.0