1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2017 MediaTek Inc. 4 * Author: Kevin-CW Chen <kevin-cw.chen@mediatek.com> 5 */ 6 7 #include <linux/clk-provider.h> 8 #include <linux/platform_device.h> 9 10 #include "clk-mtk.h" 11 #include "clk-gate.h" 12 13 #include <dt-bindings/clock/mt6797-clk.h> 14 15 static const struct mtk_gate_regs vdec0_cg_regs = { 16 .set_ofs = 0x0000, 17 .clr_ofs = 0x0004, 18 .sta_ofs = 0x0000, 19 }; 20 21 static const struct mtk_gate_regs vdec1_cg_regs = { 22 .set_ofs = 0x0008, 23 .clr_ofs = 0x000c, 24 .sta_ofs = 0x0008, 25 }; 26 27 #define GATE_VDEC0(_id, _name, _parent, _shift) \ 28 GATE_MTK(_id, _name, _parent, &vdec0_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv) 29 30 #define GATE_VDEC1(_id, _name, _parent, _shift) \ 31 GATE_MTK(_id, _name, _parent, &vdec1_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv) 32 33 static const struct mtk_gate vdec_clks[] = { 34 GATE_VDEC0(CLK_VDEC_CKEN_ENG, "vdec_cken_eng", "vdec_sel", 8), 35 GATE_VDEC0(CLK_VDEC_ACTIVE, "vdec_active", "vdec_sel", 4), 36 GATE_VDEC0(CLK_VDEC_CKEN, "vdec_cken", "vdec_sel", 0), 37 GATE_VDEC1(CLK_VDEC_LARB1_CKEN, "vdec_larb1_cken", "mm_sel", 0), 38 }; 39 40 static const struct mtk_clk_desc vdec_desc = { 41 .clks = vdec_clks, 42 .num_clks = ARRAY_SIZE(vdec_clks), 43 }; 44 45 static const struct of_device_id of_match_clk_mt6797_vdec[] = { 46 { 47 .compatible = "mediatek,mt6797-vdecsys", 48 .data = &vdec_desc, 49 }, { 50 /* sentinel */ 51 } 52 }; 53 MODULE_DEVICE_TABLE(of, of_match_clk_mt6797_vdec); 54 55 static struct platform_driver clk_mt6797_vdec_drv = { 56 .probe = mtk_clk_simple_probe, 57 .remove = mtk_clk_simple_remove, 58 .driver = { 59 .name = "clk-mt6797-vdec", 60 .of_match_table = of_match_clk_mt6797_vdec, 61 }, 62 }; 63 module_platform_driver(clk_mt6797_vdec_drv); 64 65 MODULE_DESCRIPTION("MediaTek MT6797 Video Decoders clocks driver"); 66 MODULE_LICENSE("GPL"); 67