drm/fb-helper: Fix single-probe color-format selection

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Fix the color-format selection of the single-probe helper. Go
through all user-specified values and test each for compatibility
with the driver. If none is supported, use the driver-provided
default. This guarantees that the console is always available in
any color format at least.

Until now, the format selection of the single-probe helper tried
to either use a user-specified format or a 32-bit default format.
If the user-specified format was not supported by the driver, the
selection failed and the display remained blank.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-12-tzimmermann@suse.de

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Thomas Zimmermann 2023-01-02 12:29:25 +01:00

parent cff84bac99

commit 37c90d589d

1 changed files with 94 additions and 78 deletions

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174

drivers/gpu/drm/drm_fb_helper.c

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