Commit 95da53d63dcf ("drm/omapdrm: Use regular fbdev I/O helpers")
broke console because there is no damage handling in fb_sys_write()
unlike we have in drm_fb_helper_sys_write().

Let's fix the issue by using deferred ops with fb helpers for damage.

Fixes: 95da53d63dcf ("drm/omapdrm: Use regular fbdev I/O helpers")
Signed-off-by: Tony Lindgren <t...@atomide.com>
---
 drivers/gpu/drm/omapdrm/Kconfig      | 1 +
 drivers/gpu/drm/omapdrm/omap_fbdev.c | 8 ++++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/Kconfig b/drivers/gpu/drm/omapdrm/Kconfig
--- a/drivers/gpu/drm/omapdrm/Kconfig
+++ b/drivers/gpu/drm/omapdrm/Kconfig
@@ -5,6 +5,7 @@ config DRM_OMAP
        depends on ARCH_OMAP2PLUS
        select DRM_KMS_HELPER
        select FB_DMAMEM_HELPERS if DRM_FBDEV_EMULATION
+       select FB_IOMEM_HELPERS if DRM_FBDEV_EMULATION
        select VIDEOMODE_HELPERS
        select HDMI
        default n
diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c 
b/drivers/gpu/drm/omapdrm/omap_fbdev.c
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
@@ -51,6 +51,10 @@ static void pan_worker(struct work_struct *work)
        omap_gem_roll(bo, fbi->var.yoffset * npages);
 }
 
+FB_GEN_DEFAULT_DEFERRED_IOMEM_OPS(omap_fbdev,
+                                 drm_fb_helper_damage_range,
+                                 drm_fb_helper_damage_area)
+
 static int omap_fbdev_pan_display(struct fb_var_screeninfo *var,
                struct fb_info *fbi)
 {
@@ -106,13 +110,13 @@ static void omap_fbdev_fb_destroy(struct fb_info *info)
 
 static const struct fb_ops omap_fb_ops = {
        .owner = THIS_MODULE,
-       __FB_DEFAULT_DMAMEM_OPS_RDWR,
+       __FB_DEFAULT_DEFERRED_OPS_RDWR(omap_fbdev),
        .fb_check_var   = drm_fb_helper_check_var,
        .fb_set_par     = drm_fb_helper_set_par,
        .fb_setcmap     = drm_fb_helper_setcmap,
        .fb_blank       = drm_fb_helper_blank,
        .fb_pan_display = omap_fbdev_pan_display,
-       __FB_DEFAULT_DMAMEM_OPS_DRAW,
+       __FB_DEFAULT_DEFERRED_OPS_DRAW(omap_fbdev),
        .fb_ioctl       = drm_fb_helper_ioctl,
        .fb_mmap        = omap_fbdev_fb_mmap,
        .fb_destroy     = omap_fbdev_fb_destroy,
-- 
2.43.1

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