drm/exynos: Use drm_fb_helper_fill_info

This will give the exynos fbdev a name!

v2: Rebase

Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20190326132008.11781-8-daniel.vetter@ffwll.ch

drivers/gpu/drm/exynos/exynos_drm_fbdev.c

@@ -87,11 +87,9 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
 		return PTR_ERR(fbi);
 	}
 
-	fbi->par = helper;
 	fbi->fbops = &exynos_drm_fb_ops;
 
-	drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->format->depth);
-	drm_fb_helper_fill_var(fbi, helper, sizes->fb_width, sizes->fb_height);
+	drm_fb_helper_fill_info(fbi, helper, sizes);
 
 	nr_pages = exynos_gem->size >> PAGE_SHIFT;