mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-09-04 20:19:47 +08:00
c8fa1e733c
Split out the hardware overlay specifics from omap_plane. To start, the hw overlays are statically assigned to planes. The goal is to eventually assign hw overlays dynamically to planes during plane->atomic_check() based on requested caps (scaling, YUV, etc). And then perform hw overlay re-assignment if required. Signed-off-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211117141928.771082-5-narmstrong@baylibre.com
85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
// 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;
|
|
}
|