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/platform_device.h> 8 9 #include "clk-mtk.h" 10 #include "clk-gate.h" 11 12 #include <dt-bindings/clock/mt8192-clk.h> 13 14 static const struct mtk_gate_regs mm0_cg_regs = { 15 .set_ofs = 0x104, 16 .clr_ofs = 0x108, 17 .sta_ofs = 0x100, 18 }; 19 20 static const struct mtk_gate_regs mm1_cg_regs = { 21 .set_ofs = 0x114, 22 .clr_ofs = 0x118, 23 .sta_ofs = 0x110, 24 }; 25 26 static const struct mtk_gate_regs mm2_cg_regs = { 27 .set_ofs = 0x1a4, 28 .clr_ofs = 0x1a8, 29 .sta_ofs = 0x1a0, 30 }; 31 32 #define GATE_MM0(_id, _name, _parent, _shift) \ 33 GATE_MTK(_id, _name, _parent, &mm0_cg_regs, _shift, &mtk_clk_gate_ops_setclr) 34 35 #define GATE_MM1(_id, _name, _parent, _shift) \ 36 GATE_MTK(_id, _name, _parent, &mm1_cg_regs, _shift, &mtk_clk_gate_ops_setclr) 37 38 #define GATE_MM2(_id, _name, _parent, _shift) \ 39 GATE_MTK(_id, _name, _parent, &mm2_cg_regs, _shift, &mtk_clk_gate_ops_setclr) 40 41 static const struct mtk_gate mm_clks[] = { 42 /* MM0 */ 43 GATE_MM0(CLK_MM_DISP_MUTEX0, "mm_disp_mutex0", "disp_sel", 0), 44 GATE_MM0(CLK_MM_DISP_CONFIG, "mm_disp_config", "disp_sel", 1), 45 GATE_MM0(CLK_MM_DISP_OVL0, "mm_disp_ovl0", "disp_sel", 2), 46 GATE_MM0(CLK_MM_DISP_RDMA0, "mm_disp_rdma0", "disp_sel", 3), 47 GATE_MM0(CLK_MM_DISP_OVL0_2L, "mm_disp_ovl0_2l", "disp_sel", 4), 48 GATE_MM0(CLK_MM_DISP_WDMA0, "mm_disp_wdma0", "disp_sel", 5), 49 GATE_MM0(CLK_MM_DISP_UFBC_WDMA0, "mm_disp_ufbc_wdma0", "disp_sel", 6), 50 GATE_MM0(CLK_MM_DISP_RSZ0, "mm_disp_rsz0", "disp_sel", 7), 51 GATE_MM0(CLK_MM_DISP_AAL0, "mm_disp_aal0", "disp_sel", 8), 52 GATE_MM0(CLK_MM_DISP_CCORR0, "mm_disp_ccorr0", "disp_sel", 9), 53 GATE_MM0(CLK_MM_DISP_DITHER0, "mm_disp_dither0", "disp_sel", 10), 54 GATE_MM0(CLK_MM_SMI_INFRA, "mm_smi_infra", "disp_sel", 11), 55 GATE_MM0(CLK_MM_DISP_GAMMA0, "mm_disp_gamma0", "disp_sel", 12), 56 GATE_MM0(CLK_MM_DISP_POSTMASK0, "mm_disp_postmask0", "disp_sel", 13), 57 GATE_MM0(CLK_MM_DISP_DSC_WRAP0, "mm_disp_dsc_wrap0", "disp_sel", 14), 58 GATE_MM0(CLK_MM_DSI0, "mm_dsi0", "disp_sel", 15), 59 GATE_MM0(CLK_MM_DISP_COLOR0, "mm_disp_color0", "disp_sel", 16), 60 GATE_MM0(CLK_MM_SMI_COMMON, "mm_smi_common", "disp_sel", 17), 61 GATE_MM0(CLK_MM_DISP_FAKE_ENG0, "mm_disp_fake_eng0", "disp_sel", 18), 62 GATE_MM0(CLK_MM_DISP_FAKE_ENG1, "mm_disp_fake_eng1", "disp_sel", 19), 63 GATE_MM0(CLK_MM_MDP_TDSHP4, "mm_mdp_tdshp4", "disp_sel", 20), 64 GATE_MM0(CLK_MM_MDP_RSZ4, "mm_mdp_rsz4", "disp_sel", 21), 65 GATE_MM0(CLK_MM_MDP_AAL4, "mm_mdp_aal4", "disp_sel", 22), 66 GATE_MM0(CLK_MM_MDP_HDR4, "mm_mdp_hdr4", "disp_sel", 23), 67 GATE_MM0(CLK_MM_MDP_RDMA4, "mm_mdp_rdma4", "disp_sel", 24), 68 GATE_MM0(CLK_MM_MDP_COLOR4, "mm_mdp_color4", "disp_sel", 25), 69 GATE_MM0(CLK_MM_DISP_Y2R0, "mm_disp_y2r0", "disp_sel", 26), 70 GATE_MM0(CLK_MM_SMI_GALS, "mm_smi_gals", "disp_sel", 27), 71 GATE_MM0(CLK_MM_DISP_OVL2_2L, "mm_disp_ovl2_2l", "disp_sel", 28), 72 GATE_MM0(CLK_MM_DISP_RDMA4, "mm_disp_rdma4", "disp_sel", 29), 73 GATE_MM0(CLK_MM_DISP_DPI0, "mm_disp_dpi0", "disp_sel", 30), 74 /* MM1 */ 75 GATE_MM1(CLK_MM_SMI_IOMMU, "mm_smi_iommu", "disp_sel", 0), 76 /* MM2 */ 77 GATE_MM2(CLK_MM_DSI_DSI0, "mm_dsi_dsi0", "disp_sel", 0), 78 GATE_MM2(CLK_MM_DPI_DPI0, "mm_dpi_dpi0", "dpi_sel", 8), 79 GATE_MM2(CLK_MM_26MHZ, "mm_26mhz", "clk26m", 24), 80 GATE_MM2(CLK_MM_32KHZ, "mm_32khz", "clk32k", 25), 81 }; 82 83 static int clk_mt8192_mm_probe(struct platform_device *pdev) 84 { 85 struct device *dev = &pdev->dev; 86 struct device_node *node = dev->parent->of_node; 87 struct clk_hw_onecell_data *clk_data; 88 int r; 89 90 clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK); 91 if (!clk_data) 92 return -ENOMEM; 93 94 r = mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks), clk_data); 95 if (r) 96 return r; 97 98 return of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); 99 } 100 101 static struct platform_driver clk_mt8192_mm_drv = { 102 .probe = clk_mt8192_mm_probe, 103 .driver = { 104 .name = "clk-mt8192-mm", 105 }, 106 }; 107 108 builtin_platform_driver(clk_mt8192_mm_drv); 109