drivers/clk/mediatek/clk-mt6779-vdec.c

   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/module.h>
   8 #include <linux/clk-provider.h>
   9 #include <linux/platform_device.h>
  10
  11 #include "clk-mtk.h"
  12 #include "clk-gate.h"
  13
  14 #include <dt-bindings/clock/mt6779-clk.h>
  15
  16 static const struct mtk_gate_regs vdec0_cg_regs = {
  17         .set_ofs = 0x0000,
  18         .clr_ofs = 0x0004,
  19         .sta_ofs = 0x0000,
  20 };
  21
  22 static const struct mtk_gate_regs vdec1_cg_regs = {
  23         .set_ofs = 0x0008,
  24         .clr_ofs = 0x000c,
  25         .sta_ofs = 0x0008,
  26 };
  27
  28 #define GATE_VDEC0_I(_id, _name, _parent, _shift)               \
  29         GATE_MTK(_id, _name, _parent, &vdec0_cg_regs, _shift,   \
  30                 &mtk_clk_gate_ops_setclr_inv)
  31 #define GATE_VDEC1_I(_id, _name, _parent, _shift)               \
  32         GATE_MTK(_id, _name, _parent, &vdec1_cg_regs, _shift,   \
  33                 &mtk_clk_gate_ops_setclr_inv)
  34
  35 static const struct mtk_gate vdec_clks[] = {
  36         /* VDEC0 */
  37         GATE_VDEC0_I(CLK_VDEC_VDEC, "vdec_cken", "vdec_sel", 0),
  38         /* VDEC1 */
  39         GATE_VDEC1_I(CLK_VDEC_LARB1, "vdec_larb1_cken", "vdec_sel", 0),
  40 };
  41
  42 static const struct mtk_clk_desc vdec_desc = {
  43         .clks = vdec_clks,
  44         .num_clks = ARRAY_SIZE(vdec_clks),
  45 };
  46
  47 static const struct of_device_id of_match_clk_mt6779_vdec[] = {
  48         {
  49                 .compatible = "mediatek,mt6779-vdecsys",
  50                 .data = &vdec_desc,
  51         }, {
  52                 /* sentinel */
  53         }
  54 };
  55 MODULE_DEVICE_TABLE(of, of_match_clk_mt6779_vdec);
  56
  57 static struct platform_driver clk_mt6779_vdec_drv = {
  58         .probe = mtk_clk_simple_probe,
  59         .remove = mtk_clk_simple_remove,
  60         .driver = {
  61                 .name = "clk-mt6779-vdec",
  62                 .of_match_table = of_match_clk_mt6779_vdec,
  63         },
  64 };
  65
  66 module_platform_driver(clk_mt6779_vdec_drv);
  67
  68 MODULE_DESCRIPTION("MediaTek MT6779 Video Decoders clocks driver");
  69 MODULE_LICENSE("GPL");