imx-drm: remove imx-fb.c

imx-fb.c doesn't need to be separate from imx-drm-core.c - all it is
doing is setting up the minimum and maximum sizes of the scanout
buffers, and setting up the mode_config function pointers.  Move the
contents into imx-drm-core.c and kill this file.

Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

drivers/staging/imx-drm/Makefile

@@ -1,5 +1,5 @@
 
-imxdrm-objs := imx-drm-core.o imx-fb.o
+imxdrm-objs := imx-drm-core.o
 
 obj-$(CONFIG_DRM_IMX) += imxdrm.o
 

drivers/staging/imx-drm/imx-drm-core.c

@@ -381,6 +381,10 @@ static void imx_drm_connector_unregister(
 	drm_mode_group_reinit(imxdrm->drm);
 }
 
+static struct drm_mode_config_funcs imx_drm_mode_config_funcs = {
+	.fb_create = drm_fb_cma_create,
+};
+
 /*
  * Main DRM initialisation. This binds, initialises and registers
  * with DRM the subcomponents of the driver.
@@ -406,8 +410,18 @@ static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags)
 	 */
 	drm->irq_enabled = true;
 
+	/*
+	 * set max width and height as default value(4096x4096).
+	 * this value would be used to check framebuffer size limitation
+	 * at drm_mode_addfb().
+	 */
+	drm->mode_config.min_width = 64;
+	drm->mode_config.min_height = 64;
+	drm->mode_config.max_width = 4096;
+	drm->mode_config.max_height = 4096;
+	drm->mode_config.funcs = &imx_drm_mode_config_funcs;
+
 	drm_mode_config_init(drm);
-	imx_drm_mode_config_init(drm);
 
 	mutex_lock(&imxdrm->mutex);