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efifb: Set info->fbcon_rotate_hint based on drm_get_panel_orientation_quirk 

On some hardware the LCD panel is not mounted upright in the casing,
but rotated by 90 degrees. In this case we want the console to
automatically be rotated to compensate.

The drm subsys has a quirk table for this, use the
drm_get_panel_orientation_quirk function to get the panel orientation
and set info->fbcon_rotate_hint based on this, so that the fbcon console
on top of efifb gets automatically rotated to compensate for the panel
orientation.

Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171125193553.23986-7-hdegoede@redhat.com
hifive-unleashed-5.1
Hans de Goede 2017-11-25 20:35:52 +01:00 committed by Hans de Goede
parent 82daca2975
commit 028b186f44
2 changed files with 21 additions and 1 deletions
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1
drivers/video/fbdev/Kconfig
View File

@ -772,6 +772,7 @@ config FB_VESA
config FB_EFI
bool "EFI-based Framebuffer Support"
depends on (FB = y) && !IA64 && EFI
select DRM_PANEL_ORIENTATION_QUIRKS
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT

21
drivers/video/fbdev/efifb.c
View File

@ -16,6 +16,8 @@
#include <linux/screen_info.h>
#include <video/vga.h>
#include <asm/efi.h>
#include <drm/drm_utils.h> /* For drm_get_panel_orientation_quirk */
#include <drm/drm_connector.h> /* For DRM_MODE_PANEL_ORIENTATION_* */
static bool request_mem_succeeded = false;
static bool nowc = false;
@ -157,7 +159,7 @@ static u64 bar_offset;
static int efifb_probe(struct platform_device *dev)
{
struct fb_info *info;
int err;
int err, orientation;
unsigned int size_vmode;
unsigned int size_remap;
unsigned int size_total;
@ -329,6 +331,23 @@ static int efifb_probe(struct platform_device *dev)
info->fix = efifb_fix;
info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE;
orientation = drm_get_panel_orientation_quirk(efifb_defined.xres,
efifb_defined.yres);
switch (orientation) {
default:
info->fbcon_rotate_hint = FB_ROTATE_UR;
break;
case DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP:
info->fbcon_rotate_hint = FB_ROTATE_UD;
break;
case DRM_MODE_PANEL_ORIENTATION_LEFT_UP:
info->fbcon_rotate_hint = FB_ROTATE_CCW;
break;
case DRM_MODE_PANEL_ORIENTATION_RIGHT_UP:
info->fbcon_rotate_hint = FB_ROTATE_CW;
break;
}
err = sysfs_create_groups(&dev->dev.kobj, efifb_groups);
if (err) {
pr_err("efifb: cannot add sysfs attrs\n");