drivers/clk/mediatek/clk-mt6797-vdec.c

   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");