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authorHans de Goede2019-07-21 15:19:18 +0200
committerBartlomiej Zolnierkiewicz2019-08-19 15:52:23 +0200
commit51677dfcc17f88ed754143df670ff064eae67f84 (patch)
tree41d94359f8d19d51cb2eb1d162d6241a8d267fd8 /drivers/gpu
parentd777478599f781fc5162d1ae95dbee6e5ae05a41 (diff)
efifb: BGRT: Improve efifb_bgrt_sanity_check
For various reasons, at least with x86 EFI firmwares, the xoffset and yoffset in the BGRT info are not always reliable. Extensive testing has shown that when the info is correct, the BGRT image is always exactly centered horizontally (the yoffset variable is more variable and not always predictable). This commit simplifies / improves the bgrt_sanity_check to simply check that the BGRT image is exactly centered horizontally and skips (re)drawing it when it is not. This fixes the BGRT image sometimes being drawn in the wrong place. Cc: stable@vger.kernel.org Fixes: 88fe4ceb2447 ("efifb: BGRT: Do not copy the boot graphics for non native resolutions") Signed-off-by: Hans de Goede <hdegoede@redhat.com> Cc: Peter Jones <pjones@redhat.com>, Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190721131918.10115-1-hdegoede@redhat.com
Diffstat (limited to 'drivers/gpu')
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