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authorHans de Goede <j.w.r.degoede@gmail.com>2017-11-25 22:35:47 +0300
committerHans de Goede <hdegoede@redhat.com>2017-12-05 01:03:21 +0300
commitc9e6a36492504e35f09c6a53e18ac3f76233365e (patch)
tree5d8417e24ec33b9b1807442a6713d2bbf981745c /include/linux/fb.h
parent7b47c66cfa203288c43851260edeeb0fae56f692 (diff)
downloadlinux-c9e6a36492504e35f09c6a53e18ac3f76233365e.tar.xz
fbcon: Add fbcon_rotate_hint to struct fb_info
On some hardware the LCD panel is not mounted upright in the casing, but upside-down or rotated 90 degrees. In this case we want the console to automatically be rotated to compensate. The fbdev-driver may know about the need to rotate. Add a new fbcon_rotate_hint field to struct fb_info, which gets initialized to -1. If the fbdev-driver knows that some sort of rotation is necessary then it can set this field to a FB_ROTATE_* value to tell the fbcon console driver to rotate the console. Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171125193553.23986-2-hdegoede@redhat.com
Diffstat (limited to 'include/linux/fb.h')
-rw-r--r--include/linux/fb.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/fb.h b/include/linux/fb.h
index bc24e48e396d..d1e5bed39140 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -465,6 +465,11 @@ struct fb_info {
atomic_t count;
int node;
int flags;
+ /*
+ * -1 by default, set to a FB_ROTATE_* value by the driver, if it knows
+ * a lcd is not mounted upright and fbcon should rotate to compensate.
+ */
+ int fbcon_rotate_hint;
struct mutex lock; /* Lock for open/release/ioctl funcs */
struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */
struct fb_var_screeninfo var; /* Current var */