94ebfc0782
The CMA helper is already using the drm_fb_helper_generic_probe part of the generic fbdev emulation. This patch makes full use of the generic fbdev emulation by using its drm_client callbacks. This means that drm_mode_config_funcs->output_poll_changed and drm_driver->lastclose are now handled by the emulation code. Additionally fbdev unregister happens automatically on drm_dev_unregister(). The drm_fbdev_generic_setup() call is put after drm_dev_register() in the driver. This is done to highlight the fact that fbdev emulation is an internal client that makes use of the driver, it is not part of the driver as such. If fbdev setup fails, an error is printed, but the driver succeeds probing. Cc: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181025201340.34227-8-noralf@tronnes.org
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/*
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* Copyright (C) 2015 Free Electrons
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* Copyright (C) 2015 NextThing Co
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*
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* Maxime Ripard <maxime.ripard@free-electrons.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*/
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#include <drm/drm_atomic.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_gem_framebuffer_helper.h>
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#include <drm/drmP.h>
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#include "sun4i_drv.h"
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#include "sun4i_framebuffer.h"
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static int sun4i_de_atomic_check(struct drm_device *dev,
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struct drm_atomic_state *state)
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{
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int ret;
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ret = drm_atomic_helper_check_modeset(dev, state);
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if (ret)
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return ret;
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ret = drm_atomic_normalize_zpos(dev, state);
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if (ret)
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return ret;
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return drm_atomic_helper_check_planes(dev, state);
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}
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static const struct drm_mode_config_funcs sun4i_de_mode_config_funcs = {
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.atomic_check = sun4i_de_atomic_check,
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.atomic_commit = drm_atomic_helper_commit,
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.fb_create = drm_gem_fb_create,
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};
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static struct drm_mode_config_helper_funcs sun4i_de_mode_config_helpers = {
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.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
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};
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void sun4i_framebuffer_init(struct drm_device *drm)
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{
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drm_mode_config_reset(drm);
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drm->mode_config.max_width = 8192;
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drm->mode_config.max_height = 8192;
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drm->mode_config.funcs = &sun4i_de_mode_config_funcs;
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drm->mode_config.helper_private = &sun4i_de_mode_config_helpers;
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}
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