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
158
159
160
161
162
163
164
165
166
167
168
169
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2021 MediaTek Inc.
*/
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/soc/mediatek/mtk-cmdq.h>
#include "mtk_disp_drv.h"
#include "mtk_drm_crtc.h"
#include "mtk_drm_ddp_comp.h"
#define DISP_AAL_EN 0x0000
#define AAL_EN BIT(0)
#define DISP_AAL_SIZE 0x0030
#define DISP_AAL_OUTPUT_SIZE 0x04d8
struct mtk_disp_aal_data {
bool has_gamma;
};
/**
* struct mtk_disp_aal - DISP_AAL driver structure
* @ddp_comp - structure containing type enum and hardware resources
* @crtc - associated crtc to report irq events to
*/
struct mtk_disp_aal {
struct clk *clk;
void __iomem *regs;
struct cmdq_client_reg cmdq_reg;
const struct mtk_disp_aal_data *data;
};
int mtk_aal_clk_enable(struct device *dev)
{
struct mtk_disp_aal *aal = dev_get_drvdata(dev);
return clk_prepare_enable(aal->clk);
}
void mtk_aal_clk_disable(struct device *dev)
{
struct mtk_disp_aal *aal = dev_get_drvdata(dev);
clk_disable_unprepare(aal->clk);
}
void mtk_aal_config(struct device *dev, unsigned int w,
unsigned int h, unsigned int vrefresh,
unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
{
struct mtk_disp_aal *aal = dev_get_drvdata(dev);
mtk_ddp_write(cmdq_pkt, w << 16 | h, &aal->cmdq_reg, aal->regs, DISP_AAL_SIZE);
mtk_ddp_write(cmdq_pkt, w << 16 | h, &aal->cmdq_reg, aal->regs, DISP_AAL_OUTPUT_SIZE);
}
void mtk_aal_gamma_set(struct device *dev, struct drm_crtc_state *state)
{
struct mtk_disp_aal *aal = dev_get_drvdata(dev);
if (aal->data && aal->data->has_gamma)
mtk_gamma_set_common(aal->regs, state, false);
}
void mtk_aal_start(struct device *dev)
{
struct mtk_disp_aal *aal = dev_get_drvdata(dev);
writel(AAL_EN, aal->regs + DISP_AAL_EN);
}
void mtk_aal_stop(struct device *dev)
{
struct mtk_disp_aal *aal = dev_get_drvdata(dev);
writel_relaxed(0x0, aal->regs + DISP_AAL_EN);
}
static int mtk_disp_aal_bind(struct device *dev, struct device *master,
void *data)
{
return 0;
}
static void mtk_disp_aal_unbind(struct device *dev, struct device *master,
void *data)
{
}
static const struct component_ops mtk_disp_aal_component_ops = {
.bind = mtk_disp_aal_bind,
.unbind = mtk_disp_aal_unbind,
};
static int mtk_disp_aal_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct mtk_disp_aal *priv;
struct resource *res;
int ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->clk = devm_clk_get(dev, NULL);
if (IS_ERR(priv->clk)) {
dev_err(dev, "failed to get aal clk\n");
return PTR_ERR(priv->clk);
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
priv->regs = devm_ioremap_resource(dev, res);
if (IS_ERR(priv->regs)) {
dev_err(dev, "failed to ioremap aal\n");
return PTR_ERR(priv->regs);
}
#if IS_REACHABLE(CONFIG_MTK_CMDQ)
ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
if (ret)
dev_dbg(dev, "get mediatek,gce-client-reg fail!\n");
#endif
priv->data = of_device_get_match_data(dev);
platform_set_drvdata(pdev, priv);
ret = component_add(dev, &mtk_disp_aal_component_ops);
if (ret)
dev_err(dev, "Failed to add component: %d\n", ret);
return ret;
}
static int mtk_disp_aal_remove(struct platform_device *pdev)
{
component_del(&pdev->dev, &mtk_disp_aal_component_ops);
return 0;
}
static const struct mtk_disp_aal_data mt8173_aal_driver_data = {
.has_gamma = true,
};
static const struct of_device_id mtk_disp_aal_driver_dt_match[] = {
{ .compatible = "mediatek,mt8173-disp-aal",
.data = &mt8173_aal_driver_data},
{ .compatible = "mediatek,mt8183-disp-aal"},
{},
};
MODULE_DEVICE_TABLE(of, mtk_disp_aal_driver_dt_match);
struct platform_driver mtk_disp_aal_driver = {
.probe = mtk_disp_aal_probe,
.remove = mtk_disp_aal_remove,
.driver = {
.name = "mediatek-disp-aal",
.owner = THIS_MODULE,
.of_match_table = mtk_disp_aal_driver_dt_match,
},
};
|
