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/*
* Copyright 2015 Freescale Semiconductor, Inc.
*
* Freescale DCU drm device driver
*
* 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/drmP.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_flip_work.h>
#include <drm/drm_fb_cma_helper.h>
#include "fsl_dcu_drm_crtc.h"
#include "fsl_dcu_drm_drv.h"
void fsl_dcu_cleanup_atomic_state(struct drm_device *dev,
struct drm_atomic_state *state)
{
drm_atomic_helper_cleanup_planes(dev, state);
drm_atomic_state_free(state);
}
static int fsl_dcu_drm_atomic_commit(struct drm_device *dev,
struct drm_atomic_state *state,
bool async)
{
struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
int ret;
ret = drm_atomic_helper_prepare_planes(dev, state);
if (ret < 0)
return ret;
/*
* This is the point of no return - everything below never fails except
* when the hw goes bonghits. Which means we can commit the new state on
* the software side now.
*/
drm_atomic_helper_swap_state(dev, state);
drm_atomic_helper_commit_modeset_disables(dev, state);
drm_atomic_helper_commit_planes(dev, state, false);
drm_atomic_helper_commit_modeset_enables(dev, state);
if (async) {
fsl_dev->cleanup_state = state;
} else {
drm_atomic_helper_wait_for_vblanks(dev, state);
fsl_dcu_cleanup_atomic_state(dev, state);
}
return 0;
}
static const struct drm_mode_config_funcs fsl_dcu_drm_mode_config_funcs = {
.atomic_check = drm_atomic_helper_check,
.atomic_commit = fsl_dcu_drm_atomic_commit,
.fb_create = drm_fb_cma_create,
};
int fsl_dcu_drm_modeset_init(struct fsl_dcu_drm_device *fsl_dev)
{
int ret;
drm_mode_config_init(fsl_dev->drm);
fsl_dev->drm->mode_config.min_width = 0;
fsl_dev->drm->mode_config.min_height = 0;
fsl_dev->drm->mode_config.max_width = 2031;
fsl_dev->drm->mode_config.max_height = 2047;
fsl_dev->drm->mode_config.funcs = &fsl_dcu_drm_mode_config_funcs;
ret = fsl_dcu_drm_crtc_create(fsl_dev);
if (ret)
return ret;
ret = fsl_dcu_drm_encoder_create(fsl_dev, &fsl_dev->crtc.base);
if (ret)
goto fail_encoder;
ret = fsl_dcu_drm_connector_create(fsl_dev, &fsl_dev->encoder);
if (ret)
goto fail_connector;
drm_mode_config_reset(fsl_dev->drm);
drm_kms_helper_poll_init(fsl_dev->drm);
return 0;
fail_encoder:
fsl_dev->crtc.base.funcs->destroy(&fsl_dev->crtc.base);
fail_connector:
fsl_dev->encoder.funcs->destroy(&fsl_dev->encoder);
return ret;
}
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