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
148
149
150
151
152
153
154
155
156
157
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2014 MediaTek Inc.
* Copyright (c) 2022 Collabora Ltd.
* Author: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
*/
#include <dt-bindings/clock/mt8173-clk.h>
#include <linux/of_address.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include "clk-mtk.h"
#include "clk-pll.h"
#define REGOFF_REF2USB 0x8
#define REGOFF_HDMI_REF 0x40
#define MT8173_PLL_FMAX (3000UL * MHZ)
#define CON0_MT8173_RST_BAR BIT(24)
#define PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \
_pd_reg, _pd_shift, _tuner_reg, _pcw_reg, \
_pcw_shift, _div_table) { \
.id = _id, \
.name = _name, \
.reg = _reg, \
.pwr_reg = _pwr_reg, \
.en_mask = _en_mask, \
.flags = _flags, \
.rst_bar_mask = CON0_MT8173_RST_BAR, \
.fmax = MT8173_PLL_FMAX, \
.pcwbits = _pcwbits, \
.pd_reg = _pd_reg, \
.pd_shift = _pd_shift, \
.tuner_reg = _tuner_reg, \
.pcw_reg = _pcw_reg, \
.pcw_shift = _pcw_shift, \
.div_table = _div_table, \
}
#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \
_pd_reg, _pd_shift, _tuner_reg, _pcw_reg, \
_pcw_shift) \
PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \
_pd_reg, _pd_shift, _tuner_reg, _pcw_reg, _pcw_shift, \
NULL)
static const struct mtk_pll_div_table mmpll_div_table[] = {
{ .div = 0, .freq = MT8173_PLL_FMAX },
{ .div = 1, .freq = 1000000000 },
{ .div = 2, .freq = 702000000 },
{ .div = 3, .freq = 253500000 },
{ .div = 4, .freq = 126750000 },
{ } /* sentinel */
};
static const struct mtk_pll_data plls[] = {
PLL(CLK_APMIXED_ARMCA15PLL, "armca15pll", 0x200, 0x20c, 0, PLL_AO,
21, 0x204, 24, 0x0, 0x204, 0),
PLL(CLK_APMIXED_ARMCA7PLL, "armca7pll", 0x210, 0x21c, 0, PLL_AO,
21, 0x214, 24, 0x0, 0x214, 0),
PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x220, 0x22c, 0xf0000100, HAVE_RST_BAR, 21,
0x220, 4, 0x0, 0x224, 0),
PLL(CLK_APMIXED_UNIVPLL, "univpll", 0x230, 0x23c, 0xfe000000, HAVE_RST_BAR, 7,
0x230, 4, 0x0, 0x234, 14),
PLL_B(CLK_APMIXED_MMPLL, "mmpll", 0x240, 0x24c, 0, 0, 21, 0x244, 24, 0x0,
0x244, 0, mmpll_div_table),
PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x250, 0x25c, 0, 0, 21, 0x250, 4, 0x0, 0x254, 0),
PLL(CLK_APMIXED_VENCPLL, "vencpll", 0x260, 0x26c, 0, 0, 21, 0x260, 4, 0x0, 0x264, 0),
PLL(CLK_APMIXED_TVDPLL, "tvdpll", 0x270, 0x27c, 0, 0, 21, 0x270, 4, 0x0, 0x274, 0),
PLL(CLK_APMIXED_MPLL, "mpll", 0x280, 0x28c, 0, 0, 21, 0x280, 4, 0x0, 0x284, 0),
PLL(CLK_APMIXED_VCODECPLL, "vcodecpll", 0x290, 0x29c, 0, 0, 21, 0x290, 4, 0x0, 0x294, 0),
PLL(CLK_APMIXED_APLL1, "apll1", 0x2a0, 0x2b0, 0, 0, 31, 0x2a0, 4, 0x2a4, 0x2a4, 0),
PLL(CLK_APMIXED_APLL2, "apll2", 0x2b4, 0x2c4, 0, 0, 31, 0x2b4, 4, 0x2b8, 0x2b8, 0),
PLL(CLK_APMIXED_LVDSPLL, "lvdspll", 0x2d0, 0x2dc, 0, 0, 21, 0x2d0, 4, 0x0, 0x2d4, 0),
PLL(CLK_APMIXED_MSDCPLL2, "msdcpll2", 0x2f0, 0x2fc, 0, 0, 21, 0x2f0, 4, 0x0, 0x2f4, 0),
};
static const struct of_device_id of_match_clk_mt8173_apmixed[] = {
{ .compatible = "mediatek,mt8173-apmixedsys" },
{ /* sentinel */ }
};
static int clk_mt8173_apmixed_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
struct clk_hw_onecell_data *clk_data;
void __iomem *base;
struct clk_hw *hw;
int r;
base = of_iomap(node, 0);
if (!base)
return PTR_ERR(base);
clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK);
if (IS_ERR_OR_NULL(clk_data))
return -ENOMEM;
r = mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data);
if (r)
goto free_clk_data;
hw = mtk_clk_register_ref2usb_tx("ref2usb_tx", "clk26m", base + REGOFF_REF2USB);
if (IS_ERR(hw)) {
r = PTR_ERR(hw);
dev_err(&pdev->dev, "Failed to register ref2usb_tx: %d\n", r);
goto unregister_plls;
}
clk_data->hws[CLK_APMIXED_REF2USB_TX] = hw;
hw = devm_clk_hw_register_divider(&pdev->dev, "hdmi_ref", "tvdpll_594m", 0,
base + REGOFF_HDMI_REF, 16, 3,
CLK_DIVIDER_POWER_OF_TWO, NULL);
clk_data->hws[CLK_APMIXED_HDMI_REF] = hw;
r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
if (r)
goto unregister_ref2usb;
return 0;
unregister_ref2usb:
mtk_clk_unregister_ref2usb_tx(clk_data->hws[CLK_APMIXED_REF2USB_TX]);
unregister_plls:
mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data);
free_clk_data:
mtk_free_clk_data(clk_data);
return r;
}
static int clk_mt8173_apmixed_remove(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
struct clk_hw_onecell_data *clk_data = platform_get_drvdata(pdev);
of_clk_del_provider(node);
mtk_clk_unregister_ref2usb_tx(clk_data->hws[CLK_APMIXED_REF2USB_TX]);
mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data);
mtk_free_clk_data(clk_data);
return 0;
}
static struct platform_driver clk_mt8173_apmixed_drv = {
.probe = clk_mt8173_apmixed_probe,
.remove = clk_mt8173_apmixed_remove,
.driver = {
.name = "clk-mt8173-apmixed",
.of_match_table = of_match_clk_mt8173_apmixed,
},
};
module_platform_driver(clk_mt8173_apmixed_drv);
MODULE_DESCRIPTION("MediaTek MT8173 apmixed clocks driver");
MODULE_LICENSE("GPL");
|
