1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2019 MediaTek Inc.
4 * Author: Wendell Lin <wendell.lin@mediatek.com>
5 */
6
7 #include <linux/module.h>
8 #include <linux/clk-provider.h>
9 #include <linux/platform_device.h>
10 #include <dt-bindings/clock/mt6779-clk.h>
11
12 #include "clk-mtk.h"
13 #include "clk-gate.h"
14
15 static const struct mtk_gate_regs mm0_cg_regs = {
16 .set_ofs = 0x0104,
17 .clr_ofs = 0x0108,
18 .sta_ofs = 0x0100,
19 };
20
21 static const struct mtk_gate_regs mm1_cg_regs = {
22 .set_ofs = 0x0114,
23 .clr_ofs = 0x0118,
24 .sta_ofs = 0x0110,
25 };
26
27 #define GATE_MM0(_id, _name, _parent, _shift) \
28 GATE_MTK(_id, _name, _parent, &mm0_cg_regs, _shift, \
29 &mtk_clk_gate_ops_setclr)
30 #define GATE_MM1(_id, _name, _parent, _shift) \
31 GATE_MTK(_id, _name, _parent, &mm1_cg_regs, _shift, \
32 &mtk_clk_gate_ops_setclr)
33
34 static const struct mtk_gate mm_clks[] = {
35 /* MM0 */
36 GATE_MM0(CLK_MM_SMI_COMMON, "mm_smi_common", "mm_sel", 0),
37 GATE_MM0(CLK_MM_SMI_LARB0, "mm_smi_larb0", "mm_sel", 1),
38 GATE_MM0(CLK_MM_SMI_LARB1, "mm_smi_larb1", "mm_sel", 2),
39 GATE_MM0(CLK_MM_GALS_COMM0, "mm_gals_comm0", "mm_sel", 3),
40 GATE_MM0(CLK_MM_GALS_COMM1, "mm_gals_comm1", "mm_sel", 4),
41 GATE_MM0(CLK_MM_GALS_CCU2MM, "mm_gals_ccu2mm", "mm_sel", 5),
42 GATE_MM0(CLK_MM_GALS_IPU12MM, "mm_gals_ipu12mm", "mm_sel", 6),
43 GATE_MM0(CLK_MM_GALS_IMG2MM, "mm_gals_img2mm", "mm_sel", 7),
44 GATE_MM0(CLK_MM_GALS_CAM2MM, "mm_gals_cam2mm", "mm_sel", 8),
45 GATE_MM0(CLK_MM_GALS_IPU2MM, "mm_gals_ipu2mm", "mm_sel", 9),
46 GATE_MM0(CLK_MM_MDP_DL_TXCK, "mm_mdp_dl_txck", "mm_sel", 10),
47 GATE_MM0(CLK_MM_IPU_DL_TXCK, "mm_ipu_dl_txck", "mm_sel", 11),
48 GATE_MM0(CLK_MM_MDP_RDMA0, "mm_mdp_rdma0", "mm_sel", 12),
49 GATE_MM0(CLK_MM_MDP_RDMA1, "mm_mdp_rdma1", "mm_sel", 13),
50 GATE_MM0(CLK_MM_MDP_RSZ0, "mm_mdp_rsz0", "mm_sel", 14),
51 GATE_MM0(CLK_MM_MDP_RSZ1, "mm_mdp_rsz1", "mm_sel", 15),
52 GATE_MM0(CLK_MM_MDP_TDSHP, "mm_mdp_tdshp", "mm_sel", 16),
53 GATE_MM0(CLK_MM_MDP_WROT0, "mm_mdp_wrot0", "mm_sel", 17),
54 GATE_MM0(CLK_MM_MDP_WROT1, "mm_mdp_wrot1", "mm_sel", 18),
55 GATE_MM0(CLK_MM_FAKE_ENG, "mm_fake_eng", "mm_sel", 19),
56 GATE_MM0(CLK_MM_DISP_OVL0, "mm_disp_ovl0", "mm_sel", 20),
57 GATE_MM0(CLK_MM_DISP_OVL0_2L, "mm_disp_ovl0_2l", "mm_sel", 21),
58 GATE_MM0(CLK_MM_DISP_OVL1_2L, "mm_disp_ovl1_2l", "mm_sel", 22),
59 GATE_MM0(CLK_MM_DISP_RDMA0, "mm_disp_rdma0", "mm_sel", 23),
60 GATE_MM0(CLK_MM_DISP_RDMA1, "mm_disp_rdma1", "mm_sel", 24),
61 GATE_MM0(CLK_MM_DISP_WDMA0, "mm_disp_wdma0", "mm_sel", 25),
62 GATE_MM0(CLK_MM_DISP_COLOR0, "mm_disp_color0", "mm_sel", 26),
63 GATE_MM0(CLK_MM_DISP_CCORR0, "mm_disp_ccorr0", "mm_sel", 27),
64 GATE_MM0(CLK_MM_DISP_AAL0, "mm_disp_aal0", "mm_sel", 28),
65 GATE_MM0(CLK_MM_DISP_GAMMA0, "mm_disp_gamma0", "mm_sel", 29),
66 GATE_MM0(CLK_MM_DISP_DITHER0, "mm_disp_dither0", "mm_sel", 30),
67 GATE_MM0(CLK_MM_DISP_SPLIT, "mm_disp_split", "mm_sel", 31),
68 /* MM1 */
69 GATE_MM1(CLK_MM_DSI0_MM_CK, "mm_dsi0_mmck", "mm_sel", 0),
70 GATE_MM1(CLK_MM_DSI0_IF_CK, "mm_dsi0_ifck", "mm_sel", 1),
71 GATE_MM1(CLK_MM_DPI_MM_CK, "mm_dpi_mmck", "mm_sel", 2),
72 GATE_MM1(CLK_MM_DPI_IF_CK, "mm_dpi_ifck", "dpi0_sel", 3),
73 GATE_MM1(CLK_MM_FAKE_ENG2, "mm_fake_eng2", "mm_sel", 4),
74 GATE_MM1(CLK_MM_MDP_DL_RX_CK, "mm_mdp_dl_rxck", "mm_sel", 5),
75 GATE_MM1(CLK_MM_IPU_DL_RX_CK, "mm_ipu_dl_rxck", "mm_sel", 6),
76 GATE_MM1(CLK_MM_26M, "mm_26m", "f_f26m_ck", 7),
77 GATE_MM1(CLK_MM_MM_R2Y, "mm_mmsys_r2y", "mm_sel", 8),
78 GATE_MM1(CLK_MM_DISP_RSZ, "mm_disp_rsz", "mm_sel", 9),
79 GATE_MM1(CLK_MM_MDP_AAL, "mm_mdp_aal", "mm_sel", 10),
80 GATE_MM1(CLK_MM_MDP_HDR, "mm_mdp_hdr", "mm_sel", 11),
81 GATE_MM1(CLK_MM_DBI_MM_CK, "mm_dbi_mmck", "mm_sel", 12),
82 GATE_MM1(CLK_MM_DBI_IF_CK, "mm_dbi_ifck", "dpi0_sel", 13),
83 GATE_MM1(CLK_MM_DISP_POSTMASK0, "mm_disp_pm0", "mm_sel", 14),
84 GATE_MM1(CLK_MM_DISP_HRT_BW, "mm_disp_hrt_bw", "mm_sel", 15),
85 GATE_MM1(CLK_MM_DISP_OVL_FBDC, "mm_disp_ovl_fbdc", "mm_sel", 16),
86 };
87
clk_mt6779_mm_probe(struct platform_device * pdev)88 static int clk_mt6779_mm_probe(struct platform_device *pdev)
89 {
90 struct device *dev = &pdev->dev;
91 struct device_node *node = dev->parent->of_node;
92 struct clk_hw_onecell_data *clk_data;
93
94 clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK);
95
96 mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks),
97 clk_data);
98
99 return of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
100 }
101
102 static struct platform_driver clk_mt6779_mm_drv = {
103 .probe = clk_mt6779_mm_probe,
104 .driver = {
105 .name = "clk-mt6779-mm",
106 },
107 };
108
109 module_platform_driver(clk_mt6779_mm_drv);
110 MODULE_LICENSE("GPL");
111