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Commit 596afb6f authored by Maxime Ripard's avatar Maxime Ripard
Browse files

drm/sun4i: Grab reserved memory region 



Allow to provide an optional memory region to allocate from for our DRM
driver.

Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
parent 3c64fb37

drivers/gpu/drm/sun4i/sun4i_drv.c

+11 −1
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 


#include <linux/component.h>

#include <linux/of_graph.h>

#include <linux/of_reserved_mem.h>



#include <drm/drmP.h>

#include <drm/drm_crtc_helper.h>
@@ -101,10 +102,16 @@ static int sun4i_drv_bind(struct device *dev) 
	}

	drm->dev_private = drv;



	ret = of_reserved_mem_device_init(dev);

	if (ret && ret != -ENODEV) {

		dev_err(drm->dev, "Couldn't claim our memory region\n");

		goto free_drm;

	}



	/* drm_vblank_init calls kcalloc, which can fail */

	ret = drm_vblank_init(drm, 1);

	if (ret)

		goto free_drm;

		goto free_mem_region;



	drm_mode_config_init(drm);
@@ -142,6 +149,8 @@ static int sun4i_drv_bind(struct device *dev) 
cleanup_mode_config:

	drm_mode_config_cleanup(drm);

	drm_vblank_cleanup(drm);

free_mem_region:

	of_reserved_mem_device_release(dev);

free_drm:

	drm_dev_unref(drm);

	return ret;
@@ -156,6 +165,7 @@ static void sun4i_drv_unbind(struct device *dev) 
	sun4i_framebuffer_free(drm);

	drm_mode_config_cleanup(drm);

	drm_vblank_cleanup(drm);

	of_reserved_mem_device_release(dev);

	drm_dev_unref(drm);

}