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Subject: Re: [PATCH] drm/panfrost: Ensure GPU quirks are always initialised
To:     Daniel Vetter <daniel@ffwll.ch>, David Airlie <airlied@linux.ie>,
        Rob Herring <robh@kernel.org>,
        Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc:     Neil Armstrong <narmstrong@baylibre.com>,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
        "Marty E. Plummer" <hanetzer@startmail.com>
References: <20200909122957.51667-1-steven.price@arm.com>
From:   Steven Price <steven.price@arm.com>
Message-ID: <dd65be77-7410-3365-24b0-91d88c24568e@arm.com>
Date:   Thu, 10 Sep 2020 14:42:34 +0100
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On 09/09/2020 13:29, Steven Price wrote:
> The GPU 'CONFIG' registers used to work around hardware issues are
> cleared on reset so need to be programmed every time the GPU is reset.
> However panfrost_device_reset() failed to do this.
> 
> To avoid this in future instead move the call to
> panfrost_gpu_init_quirks() to panfrost_gpu_power_on() so that the
> regsiters are always programmed just before the cores are powered.
> 
> Fixes: f3ba91228e8e ("drm/panfrost: Add initial panfrost driver")
> Signed-off-by: Steven Price <steven.price@arm.com>

Applied to drm-misc-next

Steve