linux/drivers/clk/mediatek/clk-mt6797-mm.c
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   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
  22static const struct mtk_gate_regs mm0_cg_regs = {
  23        .set_ofs = 0x0104,
  24        .clr_ofs = 0x0108,
  25        .sta_ofs = 0x0100,
  26};
  27
  28static 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
  52static 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
 103static const struct of_device_id of_match_clk_mt6797_mm[] = {
 104        { .compatible = "mediatek,mt6797-mmsys", },
 105        {}
 106};
 107
 108static 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
 128static 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
 136builtin_platform_driver(clk_mt6797_mm_drv);
 137