[PATCH 26/34] video: Fix video on coreboot with the copy buffer

[Simon Glass]

The copy buffer, if enabled, prevents booting from coreboot correctly,
since no memory is allocated for it. Allow it to fall back to disabled
in this situation. This ensures that a console is displayed, even if
it is slow.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 drivers/pci/pci_rom.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c
index a14a4db3c2f..7bad4c82c0c 100644
--- a/drivers/pci/pci_rom.c
+++ b/drivers/pci/pci_rom.c
@@ -349,13 +349,10 @@ int vbe_setup_video_priv(struct vesa_mode_info *vesa,
 	}
 
 	/* Use double buffering if enabled */
-	if (IS_ENABLED(CONFIG_VIDEO_COPY)) {
-		if (!plat->base)
-			return log_msg_ret("copy", -ENFILE);
+	if (IS_ENABLED(CONFIG_VIDEO_COPY) && plat->base)
 		plat->copy_base = vesa->phys_base_ptr;
-	} else {
+	else
 		plat->base = vesa->phys_base_ptr;
-	}
 	log_debug("base = %lx, copy_base = %lx\n", plat->base, plat->copy_base);
 	plat->size = vesa->bytes_per_scanline * vesa->y_resolution;
 
-- 
2.31.0.rc2.261.g7f71774620-goog