b46310eecd
drm_encoder_slave is the old way to write bridge drivers, for i2c bridges only. It's deprecated, and definitely should not be used in new drivers. This has absolutely nothing to do with the new bridge driver infrastructure implemented by drm_bridge. What's even strange is that arcpgu doesn't even use any of this, it really only wants a plain normal drm_encoder. Nuke all the surplus real estate. v2: Actually git add after compile testing ... v3: Clarify commit message and stop including drm_encoder_slave.h. Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180117141755.16933-1-daniel.vetter@ffwll.ch
118 lines
3.1 KiB
C
118 lines
3.1 KiB
C
/*
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* ARC PGU DRM driver.
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*
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* Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_atomic_helper.h>
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#include "arcpgu.h"
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#define XRES_DEF 640
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#define YRES_DEF 480
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#define XRES_MAX 8192
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#define YRES_MAX 8192
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struct arcpgu_drm_connector {
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struct drm_connector connector;
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};
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static int arcpgu_drm_connector_get_modes(struct drm_connector *connector)
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{
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int count;
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count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX);
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drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF);
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return count;
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}
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static void arcpgu_drm_connector_destroy(struct drm_connector *connector)
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{
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drm_connector_unregister(connector);
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drm_connector_cleanup(connector);
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}
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static const struct drm_connector_helper_funcs
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arcpgu_drm_connector_helper_funcs = {
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.get_modes = arcpgu_drm_connector_get_modes,
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};
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static const struct drm_connector_funcs arcpgu_drm_connector_funcs = {
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.dpms = drm_helper_connector_dpms,
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.reset = drm_atomic_helper_connector_reset,
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.fill_modes = drm_helper_probe_single_connector_modes,
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.destroy = arcpgu_drm_connector_destroy,
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.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
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.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
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};
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static struct drm_encoder_funcs arcpgu_drm_encoder_funcs = {
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.destroy = drm_encoder_cleanup,
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};
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int arcpgu_drm_sim_init(struct drm_device *drm, struct device_node *np)
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{
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struct arcpgu_drm_connector *arcpgu_connector;
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struct drm_encoder *encoder;
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struct drm_connector *connector;
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int ret;
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encoder = devm_kzalloc(drm->dev, sizeof(*encoder), GFP_KERNEL);
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if (encoder == NULL)
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return -ENOMEM;
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encoder->possible_crtcs = 1;
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encoder->possible_clones = 0;
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ret = drm_encoder_init(drm, encoder, &arcpgu_drm_encoder_funcs,
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DRM_MODE_ENCODER_VIRTUAL, NULL);
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if (ret)
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return ret;
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arcpgu_connector = devm_kzalloc(drm->dev, sizeof(*arcpgu_connector),
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GFP_KERNEL);
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if (!arcpgu_connector) {
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ret = -ENOMEM;
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goto error_encoder_cleanup;
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}
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connector = &arcpgu_connector->connector;
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drm_connector_helper_add(connector, &arcpgu_drm_connector_helper_funcs);
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ret = drm_connector_init(drm, connector, &arcpgu_drm_connector_funcs,
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DRM_MODE_CONNECTOR_VIRTUAL);
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if (ret < 0) {
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dev_err(drm->dev, "failed to initialize drm connector\n");
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goto error_encoder_cleanup;
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}
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ret = drm_mode_connector_attach_encoder(connector, encoder);
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if (ret < 0) {
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dev_err(drm->dev, "could not attach connector to encoder\n");
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drm_connector_unregister(connector);
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goto error_connector_cleanup;
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}
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return 0;
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error_connector_cleanup:
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drm_connector_cleanup(connector);
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error_encoder_cleanup:
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drm_encoder_cleanup(encoder);
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return ret;
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}
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