drivers/clk/mediatek/clk-mt8167-vdec.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2020 MediaTek Inc.
   4  * Copyright (c) 2020 BayLibre, SAS
   5  * Author: James Liao <jamesjj.liao@mediatek.com>
   6  *         Fabien Parent <fparent@baylibre.com>
   7  */
   8
   9 #include <linux/clk-provider.h>
  10 #include <linux/mod_devicetable.h>
  11 #include <linux/platform_device.h>
  12
  13 #include "clk-mtk.h"
  14 #include "clk-gate.h"
  15
  16 #include <dt-bindings/clock/mt8167-clk.h>
  17
  18 static const struct mtk_gate_regs vdec0_cg_regs = {
  19         .set_ofs = 0x0,
  20         .clr_ofs = 0x4,
  21         .sta_ofs = 0x0,
  22 };
  23
  24 static const struct mtk_gate_regs vdec1_cg_regs = {
  25         .set_ofs = 0x8,
  26         .clr_ofs = 0xc,
  27         .sta_ofs = 0x8,
  28 };
  29
  30 #define GATE_VDEC0_I(_id, _name, _parent, _shift)                       \
  31         GATE_MTK(_id, _name, _parent, &vdec0_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
  32
  33 #define GATE_VDEC1_I(_id, _name, _parent, _shift)                       \
  34         GATE_MTK(_id, _name, _parent, &vdec1_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
  35
  36 static const struct mtk_gate vdec_clks[] = {
  37         /* VDEC0 */
  38         GATE_VDEC0_I(CLK_VDEC_CKEN, "vdec_cken", "rg_vdec", 0),
  39         /* VDEC1 */
  40         GATE_VDEC1_I(CLK_VDEC_LARB1_CKEN, "vdec_larb1_cken", "smi_mm", 0),
  41 };
  42
  43 static const struct mtk_clk_desc vdec_desc = {
  44         .clks = vdec_clks,
  45         .num_clks = ARRAY_SIZE(vdec_clks),
  46 };
  47
  48 static const struct of_device_id of_match_clk_mt8167_vdec[] = {
  49         { .compatible = "mediatek,mt8167-vdecsys", .data = &vdec_desc },
  50         { /* sentinel */ }
  51 };
  52 MODULE_DEVICE_TABLE(of, of_match_clk_mt8167_vdec);
  53
  54 static struct platform_driver clk_mt8167_vdec_drv = {
  55         .probe = mtk_clk_simple_probe,
  56         .remove = mtk_clk_simple_remove,
  57         .driver = {
  58                 .name = "clk-mt8167-vdecsys",
  59                 .of_match_table = of_match_clk_mt8167_vdec,
  60         },
  61 };
  62 module_platform_driver(clk_mt8167_vdec_drv);
  63
  64 MODULE_DESCRIPTION("MediaTek MT8167 Video Decoders clocks driver");
  65 MODULE_LICENSE("GPL");