mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-19 00:47:22 +07:00
3e8da87d0c
Hook up the default .reset(), .atomic_duplicate_state() and .atomic_free_state() helpers to ensure that state objects are properly created and destroyed, and call drm_mode_config_reset() at init time to create the initial state objects. Framebuffer reference count also gets maintained automatically by the transitional helpers except for the legacy page flip operation. Maintain it explicitly there. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
136 lines
3.8 KiB
C
136 lines
3.8 KiB
C
/*
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* rcar_du_lvdscon.c -- R-Car Display Unit LVDS Connector
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*
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* Copyright (C) 2013-2014 Renesas Electronics Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <drm/drmP.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_crtc_helper.h>
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#include <video/display_timing.h>
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#include <video/of_display_timing.h>
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#include <video/videomode.h>
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#include "rcar_du_drv.h"
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#include "rcar_du_encoder.h"
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#include "rcar_du_kms.h"
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#include "rcar_du_lvdscon.h"
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struct rcar_du_lvds_connector {
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struct rcar_du_connector connector;
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struct {
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unsigned int width_mm; /* Panel width in mm */
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unsigned int height_mm; /* Panel height in mm */
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struct videomode mode;
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} panel;
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};
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#define to_rcar_lvds_connector(c) \
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container_of(c, struct rcar_du_lvds_connector, connector.connector)
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static int rcar_du_lvds_connector_get_modes(struct drm_connector *connector)
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{
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struct rcar_du_lvds_connector *lvdscon =
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to_rcar_lvds_connector(connector);
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struct drm_display_mode *mode;
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mode = drm_mode_create(connector->dev);
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if (mode == NULL)
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return 0;
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mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
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drm_display_mode_from_videomode(&lvdscon->panel.mode, mode);
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drm_mode_probed_add(connector, mode);
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return 1;
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}
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static const struct drm_connector_helper_funcs connector_helper_funcs = {
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.get_modes = rcar_du_lvds_connector_get_modes,
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.best_encoder = rcar_du_connector_best_encoder,
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};
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static void rcar_du_lvds_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 enum drm_connector_status
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rcar_du_lvds_connector_detect(struct drm_connector *connector, bool force)
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{
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return connector_status_connected;
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}
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static const struct drm_connector_funcs 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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.detect = rcar_du_lvds_connector_detect,
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.fill_modes = drm_helper_probe_single_connector_modes,
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.destroy = rcar_du_lvds_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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int rcar_du_lvds_connector_init(struct rcar_du_device *rcdu,
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struct rcar_du_encoder *renc,
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/* TODO const */ struct device_node *np)
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{
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struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(renc);
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struct rcar_du_lvds_connector *lvdscon;
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struct drm_connector *connector;
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struct display_timing timing;
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int ret;
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lvdscon = devm_kzalloc(rcdu->dev, sizeof(*lvdscon), GFP_KERNEL);
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if (lvdscon == NULL)
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return -ENOMEM;
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ret = of_get_display_timing(np, "panel-timing", &timing);
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if (ret < 0)
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return ret;
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videomode_from_timing(&timing, &lvdscon->panel.mode);
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of_property_read_u32(np, "width-mm", &lvdscon->panel.width_mm);
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of_property_read_u32(np, "height-mm", &lvdscon->panel.height_mm);
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connector = &lvdscon->connector.connector;
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connector->display_info.width_mm = lvdscon->panel.width_mm;
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connector->display_info.height_mm = lvdscon->panel.height_mm;
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ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
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DRM_MODE_CONNECTOR_LVDS);
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if (ret < 0)
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return ret;
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drm_connector_helper_add(connector, &connector_helper_funcs);
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ret = drm_connector_register(connector);
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if (ret < 0)
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return ret;
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drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
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drm_object_property_set_value(&connector->base,
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rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
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ret = drm_mode_connector_attach_encoder(connector, encoder);
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if (ret < 0)
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return ret;
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lvdscon->connector.encoder = renc;
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return 0;
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}
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