drivers/clk/mediatek/clk-mt2701-vdec.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2014 MediaTek Inc.
   4  * Author: Shunli Wang <shunli.wang@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/mt2701-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_CKGEN, "vdec_cken", "vdec_sel", 0),
  35         GATE_VDEC1(CLK_VDEC_LARB, "vdec_larb_cken", "mm_sel", 0),
  36 };
  37
  38 static const struct mtk_clk_desc vdec_desc = {
  39         .clks = vdec_clks,
  40         .num_clks = ARRAY_SIZE(vdec_clks),
  41 };
  42
  43 static const struct of_device_id of_match_clk_mt2701_vdec[] = {
  44         {
  45                 .compatible = "mediatek,mt2701-vdecsys",
  46                 .data = &vdec_desc,
  47         }, {
  48                 /* sentinel */
  49         }
  50 };
  51 MODULE_DEVICE_TABLE(of, of_match_clk_mt2701_vdec);
  52
  53 static struct platform_driver clk_mt2701_vdec_drv = {
  54         .probe = mtk_clk_simple_probe,
  55         .remove = mtk_clk_simple_remove,
  56         .driver = {
  57                 .name = "clk-mt2701-vdec",
  58                 .of_match_table = of_match_clk_mt2701_vdec,
  59         },
  60 };
  61 module_platform_driver(clk_mt2701_vdec_drv);
  62
  63 MODULE_DESCRIPTION("MediaTek MT2701 Video Decoders clocks driver");
  64 MODULE_LICENSE("GPL");