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<title>u-boot.git/drivers/video/mcde_simple.c, branch v2022.07</title>
<subtitle>Unnamed repository; edit this file 'description' to name the repository.</subtitle>
<id>http://cgit.235523.xyz/u-boot.git/atom/drivers/video/mcde_simple.c?h=v2022.07</id>
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<updated>2021-08-01T19:40:51Z</updated>
<entry>
<title>video: Add simple driver for ST-Ericsson MCDE with pre-configured display</title>
<updated>2021-08-01T19:40:51Z</updated>
<author>
<name>Stephan Gerhold</name>
<email>stephan@gerhold.net</email>
</author>
<published>2021-07-02T17:21:56Z</published>
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<id>urn:sha1:21a151a79d51839ab0a08a7e2ca2ee4c9f79ab1c</id>
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The U-Boot port for ST-Ericsson Ux500 is currently only used on the
"stemmy" board, where U-Boot runs after firmware that already sets up
a boot splash screen. This means that the display is already on
and we can just continue using it for U-Boot.

Add a simple driver that simplifies this by reading the display
configuration (e.g. screen size, bpp) from the hardware registers.

It also checks the configured "source synchronization" - for some
displays (usually DSI command mode displays) we need to explicitly
trigger a software sync. This is done through the video_sync()
callback that triggers the sync and wait for completion.

Cc: Linus Walleij &lt;linus.walleij@linaro.org&gt;
Signed-off-by: Stephan Gerhold &lt;stephan@gerhold.net&gt;
Reviewed-by: Linus Walleij &lt;linus.walleij@linaro.org&gt;
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