mirror of
https://github.com/torvalds/linux.git
synced 2025-10-31 08:38:45 +02:00
7221941c4f
Open-code drm_plane_init() and remove the function from DRM. The implementation of drm_plane_init() is a simple wrapper around a call to drm_universal_plane_init(), so drivers can just use that instead. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Lyude Paul <lyude@redhat.com> # nouveau Acked-by: Jyri Sarha <jyri.sarha@iki.fi> Link: https://patchwork.freedesktop.org/patch/msgid/20220909105947.6487-2-tzimmermann@suse.de
120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (C) 2015 Texas Instruments
|
|
* Author: Jyri Sarha <jsarha@ti.com>
|
|
*/
|
|
|
|
#include <drm/drm_atomic.h>
|
|
#include <drm/drm_atomic_helper.h>
|
|
#include <drm/drm_fourcc.h>
|
|
#include <drm/drm_framebuffer.h>
|
|
|
|
#include "tilcdc_drv.h"
|
|
|
|
static const struct drm_plane_funcs tilcdc_plane_funcs = {
|
|
.update_plane = drm_atomic_helper_update_plane,
|
|
.disable_plane = drm_atomic_helper_disable_plane,
|
|
.destroy = drm_plane_cleanup,
|
|
.reset = drm_atomic_helper_plane_reset,
|
|
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
|
|
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
|
|
};
|
|
|
|
static int tilcdc_plane_atomic_check(struct drm_plane *plane,
|
|
struct drm_atomic_state *state)
|
|
{
|
|
struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
|
|
plane);
|
|
struct drm_crtc_state *crtc_state;
|
|
struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
|
|
plane);
|
|
unsigned int pitch;
|
|
|
|
if (!new_state->crtc)
|
|
return 0;
|
|
|
|
if (WARN_ON(!new_state->fb))
|
|
return -EINVAL;
|
|
|
|
if (new_state->crtc_x || new_state->crtc_y) {
|
|
dev_err(plane->dev->dev, "%s: crtc position must be zero.",
|
|
__func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
crtc_state = drm_atomic_get_existing_crtc_state(state,
|
|
new_state->crtc);
|
|
/* we should have a crtc state if the plane is attached to a crtc */
|
|
if (WARN_ON(!crtc_state))
|
|
return 0;
|
|
|
|
if (crtc_state->mode.hdisplay != new_state->crtc_w ||
|
|
crtc_state->mode.vdisplay != new_state->crtc_h) {
|
|
dev_err(plane->dev->dev,
|
|
"%s: Size must match mode (%dx%d == %dx%d)", __func__,
|
|
crtc_state->mode.hdisplay, crtc_state->mode.vdisplay,
|
|
new_state->crtc_w, new_state->crtc_h);
|
|
return -EINVAL;
|
|
}
|
|
|
|
pitch = crtc_state->mode.hdisplay *
|
|
new_state->fb->format->cpp[0];
|
|
if (new_state->fb->pitches[0] != pitch) {
|
|
dev_err(plane->dev->dev,
|
|
"Invalid pitch: fb and crtc widths must be the same");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (old_state->fb && new_state->fb->format != old_state->fb->format) {
|
|
dev_dbg(plane->dev->dev,
|
|
"%s(): pixel format change requires mode_change\n",
|
|
__func__);
|
|
crtc_state->mode_changed = true;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void tilcdc_plane_atomic_update(struct drm_plane *plane,
|
|
struct drm_atomic_state *state)
|
|
{
|
|
struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
|
|
plane);
|
|
|
|
if (!new_state->crtc)
|
|
return;
|
|
|
|
if (WARN_ON(!new_state->fb || !new_state->crtc->state))
|
|
return;
|
|
|
|
if (tilcdc_crtc_update_fb(new_state->crtc,
|
|
new_state->fb,
|
|
new_state->crtc->state->event) == 0) {
|
|
new_state->crtc->state->event = NULL;
|
|
}
|
|
}
|
|
|
|
static const struct drm_plane_helper_funcs plane_helper_funcs = {
|
|
.atomic_check = tilcdc_plane_atomic_check,
|
|
.atomic_update = tilcdc_plane_atomic_update,
|
|
};
|
|
|
|
int tilcdc_plane_init(struct drm_device *dev,
|
|
struct drm_plane *plane)
|
|
{
|
|
struct tilcdc_drm_private *priv = dev->dev_private;
|
|
int ret;
|
|
|
|
ret = drm_universal_plane_init(dev, plane, 1, &tilcdc_plane_funcs,
|
|
priv->pixelformats,
|
|
priv->num_pixelformats,
|
|
NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
|
|
if (ret) {
|
|
dev_err(dev->dev, "Failed to initialize plane: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
drm_plane_helper_add(plane, &plane_helper_funcs);
|
|
|
|
return 0;
|
|
}
|