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Message-ID: <27f14969-d71b-63db-7770-5269bf7b9ef1@redhat.com>
Date:   Tue, 6 Dec 2022 15:14:22 +0100
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Subject: Re: [PATCH v3 3/3] drm/tiny: ili9486: remove conflicting framebuffers
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To:     Thomas Zimmermann <tzimmermann@suse.de>, neil.armstrong@linaro.org,
        Carlo Caione <ccaione@baylibre.com>,
        Daniel Vetter <daniel@ffwll.ch>,
        Jerome Brunet <jbrunet@baylibre.com>,
        David Airlie <airlied@gmail.com>,
        Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
        Kevin Hilman <khilman@baylibre.com>
Cc:     linux-amlogic@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org,
        dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
References: <20221116-s905x_spi_ili9486-v3-0-59c6b58cbfe3@baylibre.com>
 <20221116-s905x_spi_ili9486-v3-3-59c6b58cbfe3@baylibre.com>
 <14e5c4e4-30dd-8efd-81e4-d680664ab04a@linaro.org>
 <c460bbda-6e9d-24e8-eb73-2e7207958deb@suse.de>
From:   Javier Martinez Canillas <javierm@redhat.com>
In-Reply-To: <c460bbda-6e9d-24e8-eb73-2e7207958deb@suse.de>
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On 12/6/22 10:52, Thomas Zimmermann wrote:
> Hi
> 
> Am 06.12.22 um 10:41 schrieb Neil Armstrong:
>> Hi Carlo,
>>
>> On 06/12/2022 09:34, Carlo Caione wrote:
>>> For platforms using simplefb / efifb, call
>>> drm_aperture_remove_framebuffers() to remove the conflicting
>>> framebuffer.
>>
>> Conflicting framebuffer on the SPI display ? How is that possible ?
> 
> Calling drm_aperture_remove_framebuffers() is only required if the 
> graphics card may have been pre-initialized by the system, such as a 
> VGA-compatible card on a PC.
> 
> Could the SPI display have been initialized by the firmware? If not, the 
> call should be left out.
>

Agree.

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat