gpu/drm: ingenic: Set max FB height to 4095

While the LCD controller can effectively only support a maximum
resolution of 800x600, the framebuffer's height can be much higher,
since we can change the Y start offset.

v2: No change
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20191210144142.33143-4-paul@crapouillou.net
# *** extracted tags ***
Acked-by: Sam Ravnborg <sam@ravnborg.org>

drivers/gpu/drm/ingenic/ingenic-drm.c

@@ -637,7 +637,7 @@ static int ingenic_drm_probe(struct platform_device *pdev)
 	drm->mode_config.min_width = 0;
 	drm->mode_config.min_height = 0;
 	drm->mode_config.max_width = 800;
-	drm->mode_config.max_height = 600;
+	drm->mode_config.max_height = 4095;
 	drm->mode_config.funcs = &ingenic_drm_mode_config_funcs;
 
 	base = devm_platform_ioremap_resource(pdev, 0);