U-Boot clears the display when it starts up, so there is no need to ask
the VESA driver to do this. Fix this and add a comment explaining the
flags.

Signed-off-by: Simon Glass <s...@chromium.org>
---

(no changes since v1)

 arch/x86/lib/bios.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/x86/lib/bios.c b/arch/x86/lib/bios.c
index 5dfe5a647eb..de4578666fb 100644
--- a/arch/x86/lib/bios.c
+++ b/arch/x86/lib/bios.c
@@ -231,7 +231,11 @@ static void vbe_set_graphics(int vesa_mode, struct 
vesa_state *mode_info)
 {
        unsigned char *framebuffer;
 
-       mode_info->video_mode = (1 << 14) | vesa_mode;
+       /*
+        * bit 14 is linear-framebuffer mode
+        * bit 15 means don't clear the display
+        */
+       mode_info->video_mode = (1 << 14) | (1 << 15) | vesa_mode;
        vbe_get_mode_info(mode_info);
 
        framebuffer = (unsigned char *)(ulong)mode_info->vesa.phys_base_ptr;
-- 
2.43.0

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