1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2014 MediaTek Inc.
4 * Author: Shunli Wang <shunli.wang@mediatek.com>
5 */
6
7 #include <linux/clk-provider.h>
8 #include <linux/platform_device.h>
9
10 #include "clk-mtk.h"
11 #include "clk-gate.h"
12
13 #include <dt-bindings/clock/mt2701-clk.h>
14
15 static const struct mtk_gate_regs disp0_cg_regs = {
16 .set_ofs = 0x0104,
17 .clr_ofs = 0x0108,
18 .sta_ofs = 0x0100,
19 };
20
21 static const struct mtk_gate_regs disp1_cg_regs = {
22 .set_ofs = 0x0114,
23 .clr_ofs = 0x0118,
24 .sta_ofs = 0x0110,
25 };
26
27 #define GATE_DISP0(_id, _name, _parent, _shift) { \
28 .id = _id, \
29 .name = _name, \
30 .parent_name = _parent, \
31 .regs = &disp0_cg_regs, \
32 .shift = _shift, \
33 .ops = &mtk_clk_gate_ops_setclr, \
34 }
35
36 #define GATE_DISP1(_id, _name, _parent, _shift) { \
37 .id = _id, \
38 .name = _name, \
39 .parent_name = _parent, \
40 .regs = &disp1_cg_regs, \
41 .shift = _shift, \
42 .ops = &mtk_clk_gate_ops_setclr, \
43 }
44
45 static const struct mtk_gate mm_clks[] = {
46 GATE_DISP0(CLK_MM_SMI_COMMON, "mm_smi_comm", "mm_sel", 0),
47 GATE_DISP0(CLK_MM_SMI_LARB0, "mm_smi_larb0", "mm_sel", 1),
48 GATE_DISP0(CLK_MM_CMDQ, "mm_cmdq", "mm_sel", 2),
49 GATE_DISP0(CLK_MM_MUTEX, "mm_mutex", "mm_sel", 3),
50 GATE_DISP0(CLK_MM_DISP_COLOR, "mm_disp_color", "mm_sel", 4),
51 GATE_DISP0(CLK_MM_DISP_BLS, "mm_disp_bls", "mm_sel", 5),
52 GATE_DISP0(CLK_MM_DISP_WDMA, "mm_disp_wdma", "mm_sel", 6),
53 GATE_DISP0(CLK_MM_DISP_RDMA, "mm_disp_rdma", "mm_sel", 7),
54 GATE_DISP0(CLK_MM_DISP_OVL, "mm_disp_ovl", "mm_sel", 8),
55 GATE_DISP0(CLK_MM_MDP_TDSHP, "mm_mdp_tdshp", "mm_sel", 9),
56 GATE_DISP0(CLK_MM_MDP_WROT, "mm_mdp_wrot", "mm_sel", 10),
57 GATE_DISP0(CLK_MM_MDP_WDMA, "mm_mdp_wdma", "mm_sel", 11),
58 GATE_DISP0(CLK_MM_MDP_RSZ1, "mm_mdp_rsz1", "mm_sel", 12),
59 GATE_DISP0(CLK_MM_MDP_RSZ0, "mm_mdp_rsz0", "mm_sel", 13),
60 GATE_DISP0(CLK_MM_MDP_RDMA, "mm_mdp_rdma", "mm_sel", 14),
61 GATE_DISP0(CLK_MM_MDP_BLS_26M, "mm_mdp_bls_26m", "pwm_sel", 15),
62 GATE_DISP0(CLK_MM_CAM_MDP, "mm_cam_mdp", "mm_sel", 16),
63 GATE_DISP0(CLK_MM_FAKE_ENG, "mm_fake_eng", "mm_sel", 17),
64 GATE_DISP0(CLK_MM_MUTEX_32K, "mm_mutex_32k", "rtc_sel", 18),
65 GATE_DISP0(CLK_MM_DISP_RDMA1, "mm_disp_rdma1", "mm_sel", 19),
66 GATE_DISP0(CLK_MM_DISP_UFOE, "mm_disp_ufoe", "mm_sel", 20),
67 GATE_DISP1(CLK_MM_DSI_ENGINE, "mm_dsi_eng", "mm_sel", 0),
68 GATE_DISP1(CLK_MM_DSI_DIG, "mm_dsi_dig", "dsi0_lntc_dsi", 1),
69 GATE_DISP1(CLK_MM_DPI_DIGL, "mm_dpi_digl", "dpi0_sel", 2),
70 GATE_DISP1(CLK_MM_DPI_ENGINE, "mm_dpi_eng", "mm_sel", 3),
71 GATE_DISP1(CLK_MM_DPI1_DIGL, "mm_dpi1_digl", "dpi1_sel", 4),
72 GATE_DISP1(CLK_MM_DPI1_ENGINE, "mm_dpi1_eng", "mm_sel", 5),
73 GATE_DISP1(CLK_MM_TVE_OUTPUT, "mm_tve_output", "tve_sel", 6),
74 GATE_DISP1(CLK_MM_TVE_INPUT, "mm_tve_input", "dpi0_sel", 7),
75 GATE_DISP1(CLK_MM_HDMI_PIXEL, "mm_hdmi_pixel", "dpi1_sel", 8),
76 GATE_DISP1(CLK_MM_HDMI_PLL, "mm_hdmi_pll", "hdmi_sel", 9),
77 GATE_DISP1(CLK_MM_HDMI_AUDIO, "mm_hdmi_audio", "apll_sel", 10),
78 GATE_DISP1(CLK_MM_HDMI_SPDIF, "mm_hdmi_spdif", "apll_sel", 11),
79 GATE_DISP1(CLK_MM_TVE_FMM, "mm_tve_fmm", "mm_sel", 14),
80 };
81
clk_mt2701_mm_probe(struct platform_device * pdev)82 static int clk_mt2701_mm_probe(struct platform_device *pdev)
83 {
84 struct device *dev = &pdev->dev;
85 struct device_node *node = dev->parent->of_node;
86 struct clk_onecell_data *clk_data;
87 int r;
88
89 clk_data = mtk_alloc_clk_data(CLK_MM_NR);
90
91 mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks),
92 clk_data);
93
94 r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
95 if (r)
96 dev_err(&pdev->dev,
97 "could not register clock provider: %s: %d\n",
98 pdev->name, r);
99
100 return r;
101 }
102
103 static struct platform_driver clk_mt2701_mm_drv = {
104 .probe = clk_mt2701_mm_probe,
105 .driver = {
106 .name = "clk-mt2701-mm",
107 },
108 };
109
110 builtin_platform_driver(clk_mt2701_mm_drv);
111