diff options
| author | Erik Gilling <konkers@android.com> | 2011-02-06 19:32:17 -0800 |
|---|---|---|
| committer | Erik Gilling <konkers@android.com> | 2011-02-07 14:56:20 -0800 |
| commit | cef13d98eb134defcfc125debf38cc6749e153c8 (patch) | |
| tree | 697d243d2c99d80f29d27aa24a6045da50eb4b92 | |
| parent | 4a6469b9eb31fdbf9183417152af4ca151ddf230 (diff) | |
video: fbmon: add HDMI dectetion to fbmod edid parsing
Looks for ieee registration numver 0x000c03 as per HDMI spec.
Change-Id: I6875b24c66e8754510edabcb4f9ba682a50d6ac1
Signed-off-by: Erik Gilling <konkers@android.com>
| -rw-r--r-- | drivers/video/fbmon.c | 7 | ||||
| -rw-r--r-- | include/linux/fb.h | 2 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c index 0841e6b27e5c..18dad1dd9fb7 100644 --- a/drivers/video/fbmon.c +++ b/drivers/video/fbmon.c @@ -1018,6 +1018,13 @@ void fb_edid_add_monspecs(unsigned char *edid, struct fb_monspecs *specs) num++; } } + } else if (tag == 0x3) { + if (len >= 3) { + u32 ieee_reg = block[0] | (block[1] << 8) | + (block[2] << 16); + if (ieee_reg == 0x000c03) + specs->misc |= FB_MISC_HDMI; + } } block += len; diff --git a/include/linux/fb.h b/include/linux/fb.h index 8b1f0a982bdb..6654459e81af 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -437,6 +437,8 @@ struct file; #define FB_MISC_PRIM_COLOR 1 #define FB_MISC_1ST_DETAIL 2 /* First Detailed Timing is preferred */ +#define FB_MISC_HDMI 4 /* display supports HDMI signaling */ + struct fb_chroma { __u32 redx; /* in fraction of 1024 */ __u32 greenx; |