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Diffstat (limited to 'drivers/gpu/drm/sun4i/sun4i_framebuffer.c')
-rw-r--r--drivers/gpu/drm/sun4i/sun4i_framebuffer.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_framebuffer.c b/drivers/gpu/drm/sun4i/sun4i_framebuffer.c
new file mode 100644
index 000000000000..a0b30c216a5b
--- /dev/null
+++ b/drivers/gpu/drm/sun4i/sun4i_framebuffer.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2015 Free Electrons
+ * Copyright (C) 2015 NextThing Co
+ *
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_fb_cma_helper.h>
+#include <drm/drmP.h>
+
+#include "sun4i_drv.h"
+
+static void sun4i_de_output_poll_changed(struct drm_device *drm)
+{
+ struct sun4i_drv *drv = drm->dev_private;
+
+ if (drv->fbdev)
+ drm_fbdev_cma_hotplug_event(drv->fbdev);
+}
+
+static const struct drm_mode_config_funcs sun4i_de_mode_config_funcs = {
+ .output_poll_changed = sun4i_de_output_poll_changed,
+ .atomic_check = drm_atomic_helper_check,
+ .atomic_commit = drm_atomic_helper_commit,
+ .fb_create = drm_fb_cma_create,
+};
+
+struct drm_fbdev_cma *sun4i_framebuffer_init(struct drm_device *drm)
+{
+ drm_mode_config_reset(drm);
+
+ drm->mode_config.max_width = 8192;
+ drm->mode_config.max_height = 8192;
+
+ drm->mode_config.funcs = &sun4i_de_mode_config_funcs;
+
+ return drm_fbdev_cma_init(drm, 32,
+ drm->mode_config.num_crtc,
+ drm->mode_config.num_connector);
+}
+
+void sun4i_framebuffer_free(struct drm_device *drm)
+{
+ struct sun4i_drv *drv = drm->dev_private;
+
+ drm_fbdev_cma_fini(drv->fbdev);
+ drm_mode_config_cleanup(drm);
+}
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