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// SPDX-License-Identifier: GPL-2.0
/*
* (C) COPYRIGHT 2018 ARM Limited. All rights reserved.
* Author: James.Qian.Wang <james.qian.wang@arm.com>
*
*/
#include <linux/clk.h>
#include <linux/spinlock.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_crtc_helper.h>
#include <linux/pm_runtime.h>
#include "komeda_dev.h"
#include "komeda_kms.h"
struct drm_crtc_helper_funcs komeda_crtc_helper_funcs = {
};
static const struct drm_crtc_funcs komeda_crtc_funcs = {
};
int komeda_kms_setup_crtcs(struct komeda_kms_dev *kms,
struct komeda_dev *mdev)
{
struct komeda_crtc *crtc;
struct komeda_pipeline *master;
char str[16];
int i;
kms->n_crtcs = 0;
for (i = 0; i < mdev->n_pipelines; i++) {
crtc = &kms->crtcs[kms->n_crtcs];
master = mdev->pipelines[i];
crtc->master = master;
crtc->slave = NULL;
if (crtc->slave)
sprintf(str, "pipe-%d", crtc->slave->id);
else
sprintf(str, "None");
DRM_INFO("crtc%d: master(pipe-%d) slave(%s) output: %s.\n",
kms->n_crtcs, master->id, str,
master->of_output_dev ?
master->of_output_dev->full_name : "None");
kms->n_crtcs++;
}
return 0;
}
static struct drm_plane *
get_crtc_primary(struct komeda_kms_dev *kms, struct komeda_crtc *crtc)
{
struct komeda_plane *kplane;
struct drm_plane *plane;
drm_for_each_plane(plane, &kms->base) {
if (plane->type != DRM_PLANE_TYPE_PRIMARY)
continue;
kplane = to_kplane(plane);
/* only master can be primary */
if (kplane->layer->base.pipeline == crtc->master)
return plane;
}
return NULL;
}
static int komeda_crtc_add(struct komeda_kms_dev *kms,
struct komeda_crtc *kcrtc)
{
struct drm_crtc *crtc = &kcrtc->base;
int err;
err = drm_crtc_init_with_planes(&kms->base, crtc,
get_crtc_primary(kms, kcrtc), NULL,
&komeda_crtc_funcs, NULL);
if (err)
return err;
drm_crtc_helper_add(crtc, &komeda_crtc_helper_funcs);
drm_crtc_vblank_reset(crtc);
crtc->port = kcrtc->master->of_output_port;
return 0;
}
int komeda_kms_add_crtcs(struct komeda_kms_dev *kms, struct komeda_dev *mdev)
{
int i, err;
for (i = 0; i < kms->n_crtcs; i++) {
err = komeda_crtc_add(kms, &kms->crtcs[i]);
if (err)
return err;
}
return 0;
}
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