drivers/clk/mediatek/clk-mt6797-mm.c

   1 /*
   2  * Copyright (c) 2017 MediaTek Inc.
   3  * Author: Kevin Chen <kevin-cw.chen@mediatek.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include <linux/clk-provider.h>
  16 #include <linux/platform_device.h>
  17 #include <dt-bindings/clock/mt6797-clk.h>
  18
  19 #include "clk-mtk.h"
  20 #include "clk-gate.h"
  21
  22 static const struct mtk_gate_regs mm0_cg_regs = {
  23         .set_ofs = 0x0104,
  24         .clr_ofs = 0x0108,
  25         .sta_ofs = 0x0100,
  26 };
  27
  28 static const struct mtk_gate_regs mm1_cg_regs = {
  29         .set_ofs = 0x0114,
  30         .clr_ofs = 0x0118,
  31         .sta_ofs = 0x0110,
  32 };
  33
  34 #define GATE_MM0(_id, _name, _parent, _shift) {                 \
  35         .id = _id,                                      \
  36         .name = _name,                                  \
  37         .parent_name = _parent,                         \
  38         .regs = &mm0_cg_regs,                           \
  39         .shift = _shift,                                \
  40         .ops = &mtk_clk_gate_ops_setclr,                \
  41 }
  42
  43 #define GATE_MM1(_id, _name, _parent, _shift) {                 \
  44         .id = _id,                                      \
  45         .name = _name,                                  \
  46         .parent_name = _parent,                         \
  47         .regs = &mm1_cg_regs,                           \
  48         .shift = _shift,                                \
  49         .ops = &mtk_clk_gate_ops_setclr,                \
  50 }
  51
  52 static const struct mtk_gate mm_clks[] = {
  53         GATE_MM0(CLK_MM_SMI_COMMON, "mm_smi_common", "mm_sel", 0),
  54         GATE_MM0(CLK_MM_SMI_LARB0, "mm_smi_larb0", "mm_sel", 1),
  55         GATE_MM0(CLK_MM_SMI_LARB5, "mm_smi_larb5", "mm_sel", 2),
  56         GATE_MM0(CLK_MM_CAM_MDP, "mm_cam_mdp", "mm_sel", 3),
  57         GATE_MM0(CLK_MM_MDP_RDMA0, "mm_mdp_rdma0", "mm_sel", 4),
  58         GATE_MM0(CLK_MM_MDP_RDMA1, "mm_mdp_rdma1", "mm_sel", 5),
  59         GATE_MM0(CLK_MM_MDP_RSZ0, "mm_mdp_rsz0", "mm_sel", 6),
  60         GATE_MM0(CLK_MM_MDP_RSZ1, "mm_mdp_rsz1", "mm_sel", 7),
  61         GATE_MM0(CLK_MM_MDP_RSZ2, "mm_mdp_rsz2", "mm_sel", 8),
  62         GATE_MM0(CLK_MM_MDP_TDSHP, "mm_mdp_tdshp", "mm_sel", 9),
  63         GATE_MM0(CLK_MM_MDP_COLOR, "mm_mdp_color", "mm_sel", 10),
  64         GATE_MM0(CLK_MM_MDP_WDMA, "mm_mdp_wdma", "mm_sel", 11),
  65         GATE_MM0(CLK_MM_MDP_WROT0, "mm_mdp_wrot0", "mm_sel", 12),
  66         GATE_MM0(CLK_MM_MDP_WROT1, "mm_mdp_wrot1", "mm_sel", 13),
  67         GATE_MM0(CLK_MM_FAKE_ENG, "mm_fake_eng", "mm_sel", 14),
  68         GATE_MM0(CLK_MM_DISP_OVL0, "mm_disp_ovl0", "mm_sel", 15),
  69         GATE_MM0(CLK_MM_DISP_OVL1, "mm_disp_ovl1", "mm_sel", 16),
  70         GATE_MM0(CLK_MM_DISP_OVL0_2L, "mm_disp_ovl0_2l", "mm_sel", 17),
  71         GATE_MM0(CLK_MM_DISP_OVL1_2L, "mm_disp_ovl1_2l", "mm_sel", 18),
  72         GATE_MM0(CLK_MM_DISP_RDMA0, "mm_disp_rdma0", "mm_sel", 19),
  73         GATE_MM0(CLK_MM_DISP_RDMA1, "mm_disp_rdma1", "mm_sel", 20),
  74         GATE_MM0(CLK_MM_DISP_WDMA0, "mm_disp_wdma0", "mm_sel", 21),
  75         GATE_MM0(CLK_MM_DISP_WDMA1, "mm_disp_wdma1", "mm_sel", 22),
  76         GATE_MM0(CLK_MM_DISP_COLOR, "mm_disp_color", "mm_sel", 23),
  77         GATE_MM0(CLK_MM_DISP_CCORR, "mm_disp_ccorr", "mm_sel", 24),
  78         GATE_MM0(CLK_MM_DISP_AAL, "mm_disp_aal", "mm_sel", 25),
  79         GATE_MM0(CLK_MM_DISP_GAMMA, "mm_disp_gamma", "mm_sel", 26),
  80         GATE_MM0(CLK_MM_DISP_OD, "mm_disp_od", "mm_sel", 27),
  81         GATE_MM0(CLK_MM_DISP_DITHER, "mm_disp_dither", "mm_sel", 28),
  82         GATE_MM0(CLK_MM_DISP_UFOE, "mm_disp_ufoe", "mm_sel", 29),
  83         GATE_MM0(CLK_MM_DISP_DSC, "mm_disp_dsc", "mm_sel", 30),
  84         GATE_MM0(CLK_MM_DISP_SPLIT, "mm_disp_split", "mm_sel", 31),
  85         GATE_MM1(CLK_MM_DSI0_MM_CLOCK, "mm_dsi0_mm_clock", "mm_sel", 0),
  86         GATE_MM1(CLK_MM_DSI1_MM_CLOCK, "mm_dsi1_mm_clock", "mm_sel", 2),
  87         GATE_MM1(CLK_MM_DPI_MM_CLOCK, "mm_dpi_mm_clock", "mm_sel", 4),
  88         GATE_MM1(CLK_MM_DPI_INTERFACE_CLOCK, "mm_dpi_interface_clock",
  89                  "dpi0_sel", 5),
  90         GATE_MM1(CLK_MM_LARB4_AXI_ASIF_MM_CLOCK, "mm_larb4_axi_asif_mm_clock",
  91                  "mm_sel", 6),
  92         GATE_MM1(CLK_MM_LARB4_AXI_ASIF_MJC_CLOCK, "mm_larb4_axi_asif_mjc_clock",
  93                  "mjc_sel", 7),
  94         GATE_MM1(CLK_MM_DISP_OVL0_MOUT_CLOCK, "mm_disp_ovl0_mout_clock",
  95                  "mm_sel", 8),
  96         GATE_MM1(CLK_MM_FAKE_ENG2, "mm_fake_eng2", "mm_sel", 9),
  97         GATE_MM1(CLK_MM_DSI0_INTERFACE_CLOCK, "mm_dsi0_interface_clock",
  98                  "clk26m", 1),
  99         GATE_MM1(CLK_MM_DSI1_INTERFACE_CLOCK, "mm_dsi1_interface_clock",
 100                  "clk26m", 3),
 101 };
 102
 103 static const struct of_device_id of_match_clk_mt6797_mm[] = {
 104         { .compatible = "mediatek,mt6797-mmsys", },
 105         {}
 106 };
 107
 108 static int clk_mt6797_mm_probe(struct platform_device *pdev)
 109 {
 110         struct clk_onecell_data *clk_data;
 111         int r;
 112         struct device_node *node = pdev->dev.of_node;
 113
 114         clk_data = mtk_alloc_clk_data(CLK_MM_NR);
 115
 116         mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks),
 117                                clk_data);
 118
 119         r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
 120         if (r)
 121                 dev_err(&pdev->dev,
 122                         "could not register clock provider: %s: %d\n",
 123                         pdev->name, r);
 124
 125         return r;
 126 }
 127
 128 static struct platform_driver clk_mt6797_mm_drv = {
 129         .probe = clk_mt6797_mm_probe,
 130         .driver = {
 131                 .name = "clk-mt6797-mm",
 132                 .of_match_table = of_match_clk_mt6797_mm,
 133         },
 134 };
 135
 136 builtin_platform_driver(clk_mt6797_mm_drv);