linux-kernel - [PATCH v2 0/1] Regression in analogix

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Message-Id: <20200308152238.1294229-1-t.schramm@manjaro.org>
Date:   Sun,  8 Mar 2020 16:22:37 +0100
From:   Tobias Schramm <t.schramm@...jaro.org>
To:     Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Brian Masney <masneyb@...tation.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Maxime Ripard <maxime@...no.tech>,
        Icenowy Zheng <icenowy@...c.io>,
        Thomas Gleixner <tglx@...utronix.de>,
        Sam Ravnborg <sam@...nborg.org>,
        Thierry Reding <treding@...dia.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Tobias Schramm <t.schramm@...jaro.org>
Subject: [PATCH v2 0/1] Regression in analogix_anx78xx

commit ff1e8fb68ea0 ("drm/bridge: analogix-anx78xx: Avoid drm_dp_link helpers")
stores the max link rate in a u8, overflowing it.
This will probably prevent the link training from working.

I've not tested this patch beyond a simple compile test since I do not own
any devices containing an anx78xx. So please test!


Best regards,

Tobias

Changelog:
 v2: Skip forward and back conversion to/from link rate

Tobias Schramm (1):
  drm/bridge: anx78xx: fix calculation of dp link rate

 drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

-- 
2.24.1