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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: Tiffany Lin <tiffany.lin@mediatek.com>
*/
#include <linux/clk.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/pm_runtime.h>
#include <soc/mediatek/smi.h>
#include "mtk_vcodec_enc_pm.h"
#include "mtk_vcodec_util.h"
#include "mtk_vpu.h"
int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *mtkdev)
{
struct device_node *node;
struct platform_device *pdev;
struct mtk_vcodec_pm *pm;
struct mtk_vcodec_clk *enc_clk;
struct mtk_vcodec_clk_info *clk_info;
int ret = 0, i = 0;
struct device *dev;
pdev = mtkdev->plat_dev;
pm = &mtkdev->pm;
memset(pm, 0, sizeof(struct mtk_vcodec_pm));
pm->mtkdev = mtkdev;
pm->dev = &pdev->dev;
dev = &pdev->dev;
enc_clk = &pm->venc_clk;
node = of_parse_phandle(dev->of_node, "mediatek,larb", 0);
if (!node) {
mtk_v4l2_err("no mediatek,larb found");
return -ENODEV;
}
pdev = of_find_device_by_node(node);
of_node_put(node);
if (!pdev) {
mtk_v4l2_err("no mediatek,larb device found");
return -ENODEV;
}
pm->larbvenc = &pdev->dev;
node = of_parse_phandle(dev->of_node, "mediatek,larb", 1);
if (!node) {
mtk_v4l2_err("no mediatek,larb found");
return -ENODEV;
}
pdev = of_find_device_by_node(node);
of_node_put(node);
if (!pdev) {
mtk_v4l2_err("no mediatek,larb device found");
return -ENODEV;
}
pm->larbvenclt = &pdev->dev;
pdev = mtkdev->plat_dev;
pm->dev = &pdev->dev;
enc_clk->clk_num = of_property_count_strings(pdev->dev.of_node,
"clock-names");
if (enc_clk->clk_num > 0) {
enc_clk->clk_info = devm_kcalloc(&pdev->dev,
enc_clk->clk_num, sizeof(*clk_info),
GFP_KERNEL);
if (!enc_clk->clk_info)
return -ENOMEM;
} else {
mtk_v4l2_err("Failed to get venc clock count");
return -EINVAL;
}
for (i = 0; i < enc_clk->clk_num; i++) {
clk_info = &enc_clk->clk_info[i];
ret = of_property_read_string_index(pdev->dev.of_node,
"clock-names", i, &clk_info->clk_name);
if (ret) {
mtk_v4l2_err("venc failed to get clk name %d", i);
return ret;
}
clk_info->vcodec_clk = devm_clk_get(&pdev->dev,
clk_info->clk_name);
if (IS_ERR(clk_info->vcodec_clk)) {
mtk_v4l2_err("venc devm_clk_get (%d)%s fail", i,
clk_info->clk_name);
return PTR_ERR(clk_info->vcodec_clk);
}
}
return ret;
}
void mtk_vcodec_release_enc_pm(struct mtk_vcodec_dev *mtkdev)
{
}
void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm)
{
struct mtk_vcodec_clk *enc_clk = &pm->venc_clk;
int ret, i = 0;
for (i = 0; i < enc_clk->clk_num; i++) {
ret = clk_prepare_enable(enc_clk->clk_info[i].vcodec_clk);
if (ret) {
mtk_v4l2_err("venc clk_prepare_enable %d %s fail %d", i,
enc_clk->clk_info[i].clk_name, ret);
goto clkerr;
}
}
ret = mtk_smi_larb_get(pm->larbvenc);
if (ret) {
mtk_v4l2_err("mtk_smi_larb_get larb3 fail %d", ret);
goto larbvencerr;
}
ret = mtk_smi_larb_get(pm->larbvenclt);
if (ret) {
mtk_v4l2_err("mtk_smi_larb_get larb4 fail %d", ret);
goto larbvenclterr;
}
return;
larbvenclterr:
mtk_smi_larb_put(pm->larbvenc);
larbvencerr:
clkerr:
for (i -= 1; i >= 0; i--)
clk_disable_unprepare(enc_clk->clk_info[i].vcodec_clk);
}
void mtk_vcodec_enc_clock_off(struct mtk_vcodec_pm *pm)
{
struct mtk_vcodec_clk *enc_clk = &pm->venc_clk;
int i = 0;
mtk_smi_larb_put(pm->larbvenc);
mtk_smi_larb_put(pm->larbvenclt);
for (i = enc_clk->clk_num - 1; i >= 0; i--)
clk_disable_unprepare(enc_clk->clk_info[i].vcodec_clk);
}
|
