1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2019 MediaTek Inc. 4 * Author: Wendell Lin <wendell.lin@mediatek.com> 5 */ 6 7 #include <linux/clk-provider.h> 8 #include <linux/platform_device.h> 9 #include <dt-bindings/clock/mt6779-clk.h> 10 11 #include "clk-mtk.h" 12 #include "clk-gate.h" 13 14 static const struct mtk_gate_regs ipe_cg_regs = { 15 .set_ofs = 0x0004, 16 .clr_ofs = 0x0008, 17 .sta_ofs = 0x0000, 18 }; 19 20 #define GATE_IPE(_id, _name, _parent, _shift) \ 21 GATE_MTK(_id, _name, _parent, &ipe_cg_regs, _shift, \ 22 &mtk_clk_gate_ops_setclr) 23 24 static const struct mtk_gate ipe_clks[] = { 25 GATE_IPE(CLK_IPE_LARB7, "ipe_larb7", "ipe_sel", 0), 26 GATE_IPE(CLK_IPE_LARB8, "ipe_larb8", "ipe_sel", 1), 27 GATE_IPE(CLK_IPE_SMI_SUBCOM, "ipe_smi_subcom", "ipe_sel", 2), 28 GATE_IPE(CLK_IPE_FD, "ipe_fd", "ipe_sel", 3), 29 GATE_IPE(CLK_IPE_FE, "ipe_fe", "ipe_sel", 4), 30 GATE_IPE(CLK_IPE_RSC, "ipe_rsc", "ipe_sel", 5), 31 GATE_IPE(CLK_IPE_DPE, "ipe_dpe", "ipe_sel", 6), 32 }; 33 34 static const struct of_device_id of_match_clk_mt6779_ipe[] = { 35 { .compatible = "mediatek,mt6779-ipesys", }, 36 {} 37 }; 38 39 static int clk_mt6779_ipe_probe(struct platform_device *pdev) 40 { 41 struct clk_onecell_data *clk_data; 42 struct device_node *node = pdev->dev.of_node; 43 44 clk_data = mtk_alloc_clk_data(CLK_IPE_NR_CLK); 45 46 mtk_clk_register_gates(node, ipe_clks, ARRAY_SIZE(ipe_clks), 47 clk_data); 48 49 return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); 50 } 51 52 static struct platform_driver clk_mt6779_ipe_drv = { 53 .probe = clk_mt6779_ipe_probe, 54 .driver = { 55 .name = "clk-mt6779-ipe", 56 .of_match_table = of_match_clk_mt6779_ipe, 57 }, 58 }; 59 60 builtin_platform_driver(clk_mt6779_ipe_drv); 61