linux-kernel - Re: (subset) [PATCH 2/2] drm/vc4: hdmi: Check the HSM rate at runtime

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Message-Id: <166566305526.1731673.7313352763401370465.b4-ty@cerno.tech>
Date:   Thu, 13 Oct 2022 14:11:01 +0200
From:   Maxime Ripard <maxime@...no.tech>
To:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Maxime Ripard <mripard@...nel.org>,
        Maxime Ripard <maxime@...no.tech>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, Emma Anholt <emma@...olt.net>
Cc:     dri-devel@...ts.freedesktop.org,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        Stefan Wahren <stefan.wahren@...e.com>,
        linux-kernel@...r.kernel.org
Subject: Re: (subset) [PATCH 2/2] drm/vc4: hdmi: Check the HSM rate at runtime_resume

On Thu, 29 Sep 2022 11:21:18 +0200, Maxime Ripard wrote:
> If our HSM clock has not been properly initialized, any register access
> will silently lock up the system.
> 
> Let's check that this can't happen by adding a check for the rate before
> any register access, and error out otherwise.
> 
> 
> [...]

Applied to drm/drm-misc (drm-misc-fixes).

Thanks!
Maxime