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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
* Author: Benoit Parrot <bparrot@ti.com>
*/
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_plane_helper.h>
#include "omap_dmm_tiler.h"
#include "omap_drv.h"
/*
* overlay funcs
*/
static const char * const overlay_id_to_name[] = {
[OMAP_DSS_GFX] = "gfx",
[OMAP_DSS_VIDEO1] = "vid1",
[OMAP_DSS_VIDEO2] = "vid2",
[OMAP_DSS_VIDEO3] = "vid3",
};
static void omap_overlay_destroy(struct omap_hw_overlay *overlay)
{
kfree(overlay);
}
static struct omap_hw_overlay *omap_overlay_init(enum omap_plane_id overlay_id,
enum omap_overlay_caps caps)
{
struct omap_hw_overlay *overlay;
overlay = kzalloc(sizeof(*overlay), GFP_KERNEL);
if (!overlay)
return ERR_PTR(-ENOMEM);
overlay->name = overlay_id_to_name[overlay_id];
overlay->id = overlay_id;
overlay->caps = caps;
return overlay;
}
int omap_hwoverlays_init(struct omap_drm_private *priv)
{
static const enum omap_plane_id hw_plane_ids[] = {
OMAP_DSS_GFX, OMAP_DSS_VIDEO1,
OMAP_DSS_VIDEO2, OMAP_DSS_VIDEO3,
};
u32 num_overlays = dispc_get_num_ovls(priv->dispc);
enum omap_overlay_caps caps;
int i, ret;
for (i = 0; i < num_overlays; i++) {
struct omap_hw_overlay *overlay;
caps = dispc_ovl_get_caps(priv->dispc, hw_plane_ids[i]);
overlay = omap_overlay_init(hw_plane_ids[i], caps);
if (IS_ERR(overlay)) {
ret = PTR_ERR(overlay);
dev_err(priv->dev, "failed to construct overlay for %s (%d)\n",
overlay_id_to_name[i], ret);
omap_hwoverlays_destroy(priv);
return ret;
}
overlay->idx = priv->num_ovls;
priv->overlays[priv->num_ovls++] = overlay;
}
return 0;
}
void omap_hwoverlays_destroy(struct omap_drm_private *priv)
{
int i;
for (i = 0; i < priv->num_ovls; i++) {
omap_overlay_destroy(priv->overlays[i]);
priv->overlays[i] = NULL;
}
priv->num_ovls = 0;
}
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