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Commit cf7389b8 authored by Hans de Goede's avatar Hans de Goede Committed by Bartlomiej Zolnierkiewicz
Browse files

efifb: BGRT: Add nobgrt option 



In some setups restoring the BGRT logo is undesirable, allow passing
video=efifb:nobgrt on the kernel commandline to disable it.

Reported-by: default avatarDavid Herrmann <dh.herrmann@gmail.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Reviewed-by: default avatarDavid Herrmann <dh.herrmann@gmail.com>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
parent 1bafcbf5

drivers/video/fbdev/efifb.c

+6 −0
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ struct bmp_dib_header { 
	u32 colors_important;

} __packed;



static bool use_bgrt = true;

static bool request_mem_succeeded = false;

static u64 mem_flags = EFI_MEMORY_WC | EFI_MEMORY_UC;
@@ -160,6 +161,9 @@ static void efifb_show_boot_graphics(struct fb_info *info) 
	void *bgrt_image = NULL;

	u8 *dst = info->screen_base;



	if (!use_bgrt)

		return;



	if (!bgrt_tab.image_address) {

		pr_info("efifb: No BGRT, not showing boot graphics\n");

		return;
@@ -290,6 +294,8 @@ static int efifb_setup(char *options) 
				screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0);

			else if (!strcmp(this_opt, "nowc"))

				mem_flags &= ~EFI_MEMORY_WC;

			else if (!strcmp(this_opt, "nobgrt"))

				use_bgrt = false;

		}

	}