drivers/clk/mediatek/clk-mt8188-ccu.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2022 MediaTek Inc.
   4  * Author: Garmin Chang <garmin.chang@mediatek.com>
   5  */
   6
   7 #include <dt-bindings/clock/mediatek,mt8188-clk.h>
   8 #include <linux/clk-provider.h>
   9 #include <linux/platform_device.h>
  10
  11 #include "clk-gate.h"
  12 #include "clk-mtk.h"
  13
  14 static const struct mtk_gate_regs ccu_cg_regs = {
  15         .set_ofs = 0x4,
  16         .clr_ofs = 0x8,
  17         .sta_ofs = 0x0,
  18 };
  19
  20 #define GATE_CCU(_id, _name, _parent, _shift)                   \
  21         GATE_MTK(_id, _name, _parent, &ccu_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
  22
  23 static const struct mtk_gate ccu_clks[] = {
  24         GATE_CCU(CLK_CCU_LARB27, "ccu_larb27", "top_ccu", 0),
  25         GATE_CCU(CLK_CCU_AHB, "ccu_ahb", "top_ccu", 1),
  26         GATE_CCU(CLK_CCU_CCU0, "ccu_ccu0", "top_ccu", 2),
  27 };
  28
  29 static const struct mtk_clk_desc ccu_desc = {
  30         .clks = ccu_clks,
  31         .num_clks = ARRAY_SIZE(ccu_clks),
  32 };
  33
  34 static const struct of_device_id of_match_clk_mt8188_ccu[] = {
  35         { .compatible = "mediatek,mt8188-ccusys", .data = &ccu_desc },
  36         { /* sentinel */ }
  37 };
  38 MODULE_DEVICE_TABLE(of, of_match_clk_mt8188_ccu);
  39
  40 static struct platform_driver clk_mt8188_ccu_drv = {
  41         .probe = mtk_clk_simple_probe,
  42         .remove = mtk_clk_simple_remove,
  43         .driver = {
  44                 .name = "clk-mt8188-ccu",
  45                 .of_match_table = of_match_clk_mt8188_ccu,
  46         },
  47 };
  48 module_platform_driver(clk_mt8188_ccu_drv);
  49
  50 MODULE_DESCRIPTION("MediaTek MT8188 Camera Control Unit clocks driver");
  51 MODULE_LICENSE("GPL");