1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2020 MediaTek Inc. 4 * Copyright (c) 2020 BayLibre, SAS 5 * Author: James Liao <jamesjj.liao@mediatek.com> 6 * Fabien Parent <fparent@baylibre.com> 7 */ 8 9 #include <linux/clk-provider.h> 10 #include <linux/of.h> 11 #include <linux/of_address.h> 12 #include <linux/of_device.h> 13 #include <linux/platform_device.h> 14 15 #include "clk-mtk.h" 16 #include "clk-gate.h" 17 18 #include <dt-bindings/clock/mt8167-clk.h> 19 20 static const struct mtk_gate_regs mm0_cg_regs = { 21 .set_ofs = 0x104, 22 .clr_ofs = 0x108, 23 .sta_ofs = 0x100, 24 }; 25 26 static const struct mtk_gate_regs mm1_cg_regs = { 27 .set_ofs = 0x114, 28 .clr_ofs = 0x118, 29 .sta_ofs = 0x110, 30 }; 31 32 #define GATE_MM0(_id, _name, _parent, _shift) { \ 33 .id = _id, \ 34 .name = _name, \ 35 .parent_name = _parent, \ 36 .regs = &mm0_cg_regs, \ 37 .shift = _shift, \ 38 .ops = &mtk_clk_gate_ops_setclr, \ 39 } 40 41 #define GATE_MM1(_id, _name, _parent, _shift) { \ 42 .id = _id, \ 43 .name = _name, \ 44 .parent_name = _parent, \ 45 .regs = &mm1_cg_regs, \ 46 .shift = _shift, \ 47 .ops = &mtk_clk_gate_ops_setclr, \ 48 } 49 50 static const struct mtk_gate mm_clks[] = { 51 /* MM0 */ 52 GATE_MM0(CLK_MM_SMI_COMMON, "mm_smi_common", "smi_mm", 0), 53 GATE_MM0(CLK_MM_SMI_LARB0, "mm_smi_larb0", "smi_mm", 1), 54 GATE_MM0(CLK_MM_CAM_MDP, "mm_cam_mdp", "smi_mm", 2), 55 GATE_MM0(CLK_MM_MDP_RDMA, "mm_mdp_rdma", "smi_mm", 3), 56 GATE_MM0(CLK_MM_MDP_RSZ0, "mm_mdp_rsz0", "smi_mm", 4), 57 GATE_MM0(CLK_MM_MDP_RSZ1, "mm_mdp_rsz1", "smi_mm", 5), 58 GATE_MM0(CLK_MM_MDP_TDSHP, "mm_mdp_tdshp", "smi_mm", 6), 59 GATE_MM0(CLK_MM_MDP_WDMA, "mm_mdp_wdma", "smi_mm", 7), 60 GATE_MM0(CLK_MM_MDP_WROT, "mm_mdp_wrot", "smi_mm", 8), 61 GATE_MM0(CLK_MM_FAKE_ENG, "mm_fake_eng", "smi_mm", 9), 62 GATE_MM0(CLK_MM_DISP_OVL0, "mm_disp_ovl0", "smi_mm", 10), 63 GATE_MM0(CLK_MM_DISP_RDMA0, "mm_disp_rdma0", "smi_mm", 11), 64 GATE_MM0(CLK_MM_DISP_RDMA1, "mm_disp_rdma1", "smi_mm", 12), 65 GATE_MM0(CLK_MM_DISP_WDMA, "mm_disp_wdma", "smi_mm", 13), 66 GATE_MM0(CLK_MM_DISP_COLOR, "mm_disp_color", "smi_mm", 14), 67 GATE_MM0(CLK_MM_DISP_CCORR, "mm_disp_ccorr", "smi_mm", 15), 68 GATE_MM0(CLK_MM_DISP_AAL, "mm_disp_aal", "smi_mm", 16), 69 GATE_MM0(CLK_MM_DISP_GAMMA, "mm_disp_gamma", "smi_mm", 17), 70 GATE_MM0(CLK_MM_DISP_DITHER, "mm_disp_dither", "smi_mm", 18), 71 GATE_MM0(CLK_MM_DISP_UFOE, "mm_disp_ufoe", "smi_mm", 19), 72 /* MM1 */ 73 GATE_MM1(CLK_MM_DISP_PWM_MM, "mm_disp_pwm_mm", "smi_mm", 0), 74 GATE_MM1(CLK_MM_DISP_PWM_26M, "mm_disp_pwm_26m", "smi_mm", 1), 75 GATE_MM1(CLK_MM_DSI_ENGINE, "mm_dsi_engine", "smi_mm", 2), 76 GATE_MM1(CLK_MM_DSI_DIGITAL, "mm_dsi_digital", "dsi0_lntc_dsick", 3), 77 GATE_MM1(CLK_MM_DPI0_ENGINE, "mm_dpi0_engine", "smi_mm", 4), 78 GATE_MM1(CLK_MM_DPI0_PXL, "mm_dpi0_pxl", "rg_fdpi0", 5), 79 GATE_MM1(CLK_MM_LVDS_PXL, "mm_lvds_pxl", "vpll_dpix", 14), 80 GATE_MM1(CLK_MM_LVDS_CTS, "mm_lvds_cts", "lvdstx_dig_cts", 15), 81 GATE_MM1(CLK_MM_DPI1_ENGINE, "mm_dpi1_engine", "smi_mm", 16), 82 GATE_MM1(CLK_MM_DPI1_PXL, "mm_dpi1_pxl", "rg_fdpi1", 17), 83 GATE_MM1(CLK_MM_HDMI_PXL, "mm_hdmi_pxl", "rg_fdpi1", 18), 84 GATE_MM1(CLK_MM_HDMI_SPDIF, "mm_hdmi_spdif", "apll12_div6", 19), 85 GATE_MM1(CLK_MM_HDMI_ADSP_BCK, "mm_hdmi_adsp_b", "apll12_div4b", 20), 86 GATE_MM1(CLK_MM_HDMI_PLL, "mm_hdmi_pll", "hdmtx_dig_cts", 21), 87 }; 88 89 struct clk_mt8167_mm_driver_data { 90 const struct mtk_gate *gates_clk; 91 int gates_num; 92 }; 93 94 static const struct clk_mt8167_mm_driver_data mt8167_mmsys_driver_data = { 95 .gates_clk = mm_clks, 96 .gates_num = ARRAY_SIZE(mm_clks), 97 }; 98 99 static int clk_mt8167_mm_probe(struct platform_device *pdev) 100 { 101 struct device *dev = &pdev->dev; 102 struct device_node *node = dev->parent->of_node; 103 const struct clk_mt8167_mm_driver_data *data; 104 struct clk_hw_onecell_data *clk_data; 105 int ret; 106 107 clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK); 108 if (!clk_data) 109 return -ENOMEM; 110 111 data = &mt8167_mmsys_driver_data; 112 113 ret = mtk_clk_register_gates(node, data->gates_clk, data->gates_num, 114 clk_data); 115 if (ret) 116 return ret; 117 118 ret = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); 119 if (ret) 120 return ret; 121 122 return 0; 123 } 124 125 static struct platform_driver clk_mt8173_mm_drv = { 126 .driver = { 127 .name = "clk-mt8167-mm", 128 }, 129 .probe = clk_mt8167_mm_probe, 130 }; 131 132 builtin_platform_driver(clk_mt8173_mm_drv); 133