x86/kernel/sysfb.c

1 // SPDX-License-Identifier: GPL-2.0-or-later
4  * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com>
8  * Simple-Framebuffer support for x86 systems
9  * Create a platform-device for any available boot framebuffer. The
10  * simple-framebuffer platform device is already available on DT systems, so
12  * platform device compatible with the "simple-framebuffer" DT object. If
13  * the framebuffer is incompatible, we instead create a legacy
14  * "vesa-framebuffer", "efi-framebuffer" or "platform-framebuffer" device and
16  * to pick these devices up without messing with simple-framebuffer drivers.
19  * If CONFIG_X86_SYSFB is not selected, we never register "simple-framebuffer"
20  * platform devices, but only use legacy framebuffer devices for
23  * TODO: We set the dev_id field of all platform-devices to 0. This allows
48 	/* try to create a simple-framebuffer device */  in sysfb_init()
56 	/* if the FB is incompatible, create a legacy framebuffer device */  in sysfb_init()
57 	if (si->orig_video_isVGA == VIDEO_TYPE_EFI)  in sysfb_init()
58 		name = "efi-framebuffer";  in sysfb_init()
59 	else if (si->orig_video_isVGA == VIDEO_TYPE_VLFB)  in sysfb_init()
60 		name = "vesa-framebuffer";  in sysfb_init()
62 		name = "platform-framebuffer";  in sysfb_init()