psb_intel_modes.c

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * Copyright (c) 2007 Intel Corporation
 4 *
 5 * Authers: Jesse Barnes <jesse.barnes@intel.com>
 6 */
 7
 8#include <linux/i2c.h>
 9
10#include <drm/drm_edid.h>
11
12#include "psb_intel_drv.h"
13
14/**
15 * psb_intel_ddc_get_modes - get modelist from monitor
16 * @connector: DRM connector device to use
17 * @adapter:   Associated I2C adaptor
18 *
19 * Fetch the EDID information from @connector using the DDC bus.
20 */
21int psb_intel_ddc_get_modes(struct drm_connector *connector,
22			    struct i2c_adapter *adapter)
23{
24	struct edid *edid;
25	int ret = 0;
26
27	edid = drm_get_edid(connector, adapter);
28	if (edid) {
29		drm_connector_update_edid_property(connector, edid);
30		ret = drm_add_edid_modes(connector, edid);
31		kfree(edid);
32	}
33	return ret;
34}