blob: f95ab3c5c72c08549f8f874736e1124ba52d851c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
*/
#include <linux/of_gpio.h>
#include <linux/phy/phy.h>
#include <drm/drm_of.h>
#include <drm/drm_print.h>
#include <drm/drm_bridge.h>
#include "dp_parser.h"
#include "dp_reg.h"
static int dp_parser_ctrl_res(struct dp_parser *parser)
{
struct platform_device *pdev = parser->pdev;
parser->phy = devm_phy_get(&pdev->dev, "dp");
if (IS_ERR(parser->phy))
return PTR_ERR(parser->phy);
return 0;
}
static int dp_parser_parse(struct dp_parser *parser)
{
int rc = 0;
if (!parser) {
DRM_ERROR("invalid input\n");
return -EINVAL;
}
rc = dp_parser_ctrl_res(parser);
if (rc)
return rc;
return 0;
}
struct dp_parser *dp_parser_get(struct platform_device *pdev)
{
struct dp_parser *parser;
int ret;
parser = devm_kzalloc(&pdev->dev, sizeof(*parser), GFP_KERNEL);
if (!parser)
return ERR_PTR(-ENOMEM);
parser->pdev = pdev;
ret = dp_parser_parse(parser);
if (ret) {
dev_err(&pdev->dev, "device tree parsing failed\n");
return ERR_PTR(ret);
}
return parser;
}
|
