drivers/clk/mediatek/clk-mt8192-msdc.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 //
   3 // Copyright (c) 2021 MediaTek Inc.
   4 // Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
   5
   6 #include <linux/clk-provider.h>
   7 #include <linux/of_device.h>
   8 #include <linux/platform_device.h>
   9
  10 #include "clk-mtk.h"
  11 #include "clk-gate.h"
  12
  13 #include <dt-bindings/clock/mt8192-clk.h>
  14
  15 static const struct mtk_gate_regs msdc_cg_regs = {
  16         .set_ofs = 0xb4,
  17         .clr_ofs = 0xb4,
  18         .sta_ofs = 0xb4,
  19 };
  20
  21 static const struct mtk_gate_regs msdc_top_cg_regs = {
  22         .set_ofs = 0x0,
  23         .clr_ofs = 0x0,
  24         .sta_ofs = 0x0,
  25 };
  26
  27 #define GATE_MSDC(_id, _name, _parent, _shift)  \
  28         GATE_MTK(_id, _name, _parent, &msdc_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
  29
  30 #define GATE_MSDC_TOP(_id, _name, _parent, _shift)      \
  31         GATE_MTK(_id, _name, _parent, &msdc_top_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
  32
  33 static const struct mtk_gate msdc_clks[] = {
  34         GATE_MSDC(CLK_MSDC_AXI_WRAP, "msdc_axi_wrap", "axi_sel", 22),
  35 };
  36
  37 static const struct mtk_gate msdc_top_clks[] = {
  38         GATE_MSDC_TOP(CLK_MSDC_TOP_AES_0P, "msdc_top_aes_0p", "aes_msdcfde_sel", 0),
  39         GATE_MSDC_TOP(CLK_MSDC_TOP_SRC_0P, "msdc_top_src_0p", "infra_msdc0_src", 1),
  40         GATE_MSDC_TOP(CLK_MSDC_TOP_SRC_1P, "msdc_top_src_1p", "infra_msdc1_src", 2),
  41         GATE_MSDC_TOP(CLK_MSDC_TOP_SRC_2P, "msdc_top_src_2p", "infra_msdc2_src", 3),
  42         GATE_MSDC_TOP(CLK_MSDC_TOP_P_MSDC0, "msdc_top_p_msdc0", "axi_sel", 4),
  43         GATE_MSDC_TOP(CLK_MSDC_TOP_P_MSDC1, "msdc_top_p_msdc1", "axi_sel", 5),
  44         GATE_MSDC_TOP(CLK_MSDC_TOP_P_MSDC2, "msdc_top_p_msdc2", "axi_sel", 6),
  45         GATE_MSDC_TOP(CLK_MSDC_TOP_P_CFG, "msdc_top_p_cfg", "axi_sel", 7),
  46         GATE_MSDC_TOP(CLK_MSDC_TOP_AXI, "msdc_top_axi", "axi_sel", 8),
  47         GATE_MSDC_TOP(CLK_MSDC_TOP_H_MST_0P, "msdc_top_h_mst_0p", "infra_msdc0", 9),
  48         GATE_MSDC_TOP(CLK_MSDC_TOP_H_MST_1P, "msdc_top_h_mst_1p", "infra_msdc1", 10),
  49         GATE_MSDC_TOP(CLK_MSDC_TOP_H_MST_2P, "msdc_top_h_mst_2p", "infra_msdc2", 11),
  50         GATE_MSDC_TOP(CLK_MSDC_TOP_MEM_OFF_DLY_26M, "msdc_top_mem_off_dly_26m", "clk26m", 12),
  51         GATE_MSDC_TOP(CLK_MSDC_TOP_32K, "msdc_top_32k", "clk32k", 13),
  52         GATE_MSDC_TOP(CLK_MSDC_TOP_AHB2AXI_BRG_AXI, "msdc_top_ahb2axi_brg_axi", "axi_sel", 14),
  53 };
  54
  55 static const struct mtk_clk_desc msdc_desc = {
  56         .clks = msdc_clks,
  57         .num_clks = ARRAY_SIZE(msdc_clks),
  58 };
  59
  60 static const struct mtk_clk_desc msdc_top_desc = {
  61         .clks = msdc_top_clks,
  62         .num_clks = ARRAY_SIZE(msdc_top_clks),
  63 };
  64
  65 static const struct of_device_id of_match_clk_mt8192_msdc[] = {
  66         {
  67                 .compatible = "mediatek,mt8192-msdc",
  68                 .data = &msdc_desc,
  69         }, {
  70                 .compatible = "mediatek,mt8192-msdc_top",
  71                 .data = &msdc_top_desc,
  72         }, {
  73                 /* sentinel */
  74         }
  75 };
  76
  77 static struct platform_driver clk_mt8192_msdc_drv = {
  78         .probe = mtk_clk_simple_probe,
  79         .driver = {
  80                 .name = "clk-mt8192-msdc",
  81                 .of_match_table = of_match_clk_mt8192_msdc,
  82         },
  83 };
  84
  85 builtin_platform_driver(clk_mt8192_msdc_drv);