drivers/clk/mediatek/clk-mt8173-vdecsys.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2014 MediaTek Inc.
   4  * Copyright (c) 2022 Collabora Ltd.
   5  * Author: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
   6  */
   7
   8 #include <dt-bindings/clock/mt8173-clk.h>
   9 #include <linux/module.h>
  10 #include <linux/platform_device.h>
  11 #include "clk-gate.h"
  12 #include "clk-mtk.h"
  13
  14 #define GATE_VDEC(_id, _name, _parent, _regs)                   \
  15                 GATE_MTK(_id, _name, _parent, _regs, 0,         \
  16                          &mtk_clk_gate_ops_setclr_inv)
  17
  18 static const struct mtk_gate_regs vdec0_cg_regs = {
  19         .set_ofs = 0x0000,
  20         .clr_ofs = 0x0004,
  21         .sta_ofs = 0x0000,
  22 };
  23
  24 static const struct mtk_gate_regs vdec1_cg_regs = {
  25         .set_ofs = 0x0008,
  26         .clr_ofs = 0x000c,
  27         .sta_ofs = 0x0008,
  28 };
  29
  30 static const struct mtk_gate vdec_clks[] = {
  31         GATE_DUMMY(CLK_DUMMY, "vdec_dummy"),
  32         GATE_VDEC(CLK_VDEC_CKEN, "vdec_cken", "vdec_sel", &vdec0_cg_regs),
  33         GATE_VDEC(CLK_VDEC_LARB_CKEN, "vdec_larb_cken", "mm_sel", &vdec1_cg_regs),
  34 };
  35
  36 static const struct mtk_clk_desc vdec_desc = {
  37         .clks = vdec_clks,
  38         .num_clks = ARRAY_SIZE(vdec_clks),
  39 };
  40
  41 static const struct of_device_id of_match_clk_mt8173_vdecsys[] = {
  42         { .compatible = "mediatek,mt8173-vdecsys", .data = &vdec_desc },
  43         { /* sentinel */ }
  44 };
  45 MODULE_DEVICE_TABLE(of, of_match_clk_mt8173_vdecsys);
  46
  47 static struct platform_driver clk_mt8173_vdecsys_drv = {
  48         .probe = mtk_clk_simple_probe,
  49         .remove = mtk_clk_simple_remove,
  50         .driver = {
  51                 .name = "clk-mt8173-vdecsys",
  52                 .of_match_table = of_match_clk_mt8173_vdecsys,
  53         },
  54 };
  55 module_platform_driver(clk_mt8173_vdecsys_drv);
  56
  57 MODULE_DESCRIPTION("MediaTek MT8173 vdecsys clocks driver");
  58 MODULE_LICENSE("GPL");