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If the framebuffer node already exists, we don't need to create one

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jmcneill 2020-10-22 09:14:40 +00:00
parent 39934b0e96
commit 5b8503e220
1 changed files with 8 additions and 2 deletions
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10
sys/stand/efiboot/efifdt.c
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@ -1,4 +1,4 @@
/* $NetBSD: efifdt.c,v 1.25 2020/10/10 19:17:39 jmcneill Exp $ */ /* $NetBSD: efifdt.c,v 1.26 2020/10/22 09:14:40 jmcneill Exp $ */
/*- /*-
* Copyright (c) 2019 Jason R. Thorpe * Copyright (c) 2019 Jason R. Thorpe
@ -338,12 +338,18 @@ efi_fdt_gop(void)
continue; continue;
} }
snprintf(buf, sizeof(buf), "framebuffer@%" PRIx64, mode->FrameBufferBase);
fb = fdt_path_offset(fdt_data, buf);
if (fb >= 0) {
/* Framebuffer node already exists, no need to create one */
return;
}
chosen = efi_fdt_chosen(); chosen = efi_fdt_chosen();
fdt_setprop_u32(fdt_data, chosen, "#address-cells", 2); fdt_setprop_u32(fdt_data, chosen, "#address-cells", 2);
fdt_setprop_u32(fdt_data, chosen, "#size-cells", 2); fdt_setprop_u32(fdt_data, chosen, "#size-cells", 2);
fdt_setprop_empty(fdt_data, chosen, "ranges"); fdt_setprop_empty(fdt_data, chosen, "ranges");
snprintf(buf, sizeof(buf), "framebuffer@%" PRIx64, mode->FrameBufferBase);
fb = fdt_add_subnode(fdt_data, chosen, buf); fb = fdt_add_subnode(fdt_data, chosen, buf);
if (fb < 0) if (fb < 0)
panic("FDT: Failed to create framebuffer node"); panic("FDT: Failed to create framebuffer node");