[PATCH] Add VIDEO_TYPE_LINEAR

[Gerd Hoffmann]

Add VIDEO_TYPE_LINEAR for a simple linear framebuffer,
initialized by the firmware (for example coreboot).

Needs CONFIG_X86_SYSFB=y and CONFIG_FB_SIMPLE=y to work.

Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
---
 arch/x86/kernel/sysfb_simplefb.c | 4 +++-
 include/uapi/linux/screen_info.h | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/sysfb_simplefb.c b/arch/x86/kernel/sysfb_simplefb.c
index 86179d4..0742c82 100644
--- a/arch/x86/kernel/sysfb_simplefb.c
+++ b/arch/x86/kernel/sysfb_simplefb.c
@@ -36,7 +36,9 @@ __init bool parse_mode(const struct screen_info *si,
 	unsigned int i;
 
 	type = si->orig_video_isVGA;
-	if (type != VIDEO_TYPE_VLFB && type != VIDEO_TYPE_EFI)
+	if (type != VIDEO_TYPE_VLFB &&
+	    type != VIDEO_TYPE_EFI &&
+	    type != VIDEO_TYPE_LINEAR)
 		return false;
 
 	for (i = 0; i < ARRAY_SIZE(formats); ++i) {
diff --git a/include/uapi/linux/screen_info.h b/include/uapi/linux/screen_info.h
index 7530e74..d27126d 100644
--- a/include/uapi/linux/screen_info.h
+++ b/include/uapi/linux/screen_info.h
@@ -66,6 +66,8 @@ struct screen_info {
 
 #define VIDEO_TYPE_EFI		0x70	/* EFI graphic mode		*/
 
+#define VIDEO_TYPE_LINEAR	0x80	/* simple linear framebuffer	*/
+
 #define VIDEO_FLAGS_NOCURSOR	(1 << 0) /* The video mode has no cursor set */
 
 #define VIDEO_CAPABILITY_SKIP_QUIRKS	(1 << 0)
-- 
1.8.3.1


--=-hMOnEh5SBrPpicfp0eCC--

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