drm/kms: move driver specific fb common code to helper functions (v2)

Initially I always meant this code to be shared, but things
ran away from me before I got to it.

This refactors the i915 and radeon kms fbdev interaction layers
out into generic helpers + driver specific pieces.

It moves all the panic/sysrq enhancements to the core file,
and stores a linked list of kernel fbs. This could possibly be
improved to only store the fb which has fbcon on it for panics
etc.

radeon retains some specific codes used for a big endian
workaround.

changes:
fix oops in v1
fix freeing path for crtc_info

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index a8fa1bb84cf..af035605d14 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -158,9 +158,6 @@ static void radeon_crtc_destroy(struct drm_crtc *crtc)
 {
         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 
-        if (radeon_crtc->mode_set.mode) {
-                drm_mode_destroy(crtc->dev, radeon_crtc->mode_set.mode);
-        }
         drm_crtc_cleanup(crtc);
         kfree(radeon_crtc);
 }
@@ -189,9 +186,11 @@ static void radeon_crtc_init(struct drm_device *dev, int index)
         radeon_crtc->crtc_id = index;
         rdev->mode_info.crtcs[index] = radeon_crtc;
 
+#if 0
         radeon_crtc->mode_set.crtc = &radeon_crtc->base;
         radeon_crtc->mode_set.connectors = (struct drm_connector **)(radeon_crtc + 1);
         radeon_crtc->mode_set.num_connectors = 0;
+#endif
 
         for (i = 0; i < 256; i++) {
                 radeon_crtc->lut_r[i] = i << 2;