drivers/clk/mediatek/clk-mt6779-img.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 #include <dt-bindings/clock/mt6779-clk.h>
  11
  12 #include "clk-mtk.h"
  13 #include "clk-gate.h"
  14
  15 static const struct mtk_gate_regs img_cg_regs = {
  16         .set_ofs = 0x0004,
  17         .clr_ofs = 0x0008,
  18         .sta_ofs = 0x0000,
  19 };
  20
  21 #define GATE_IMG(_id, _name, _parent, _shift)                   \
  22         GATE_MTK(_id, _name, _parent, &img_cg_regs, _shift,     \
  23                 &mtk_clk_gate_ops_setclr)
  24
  25 static const struct mtk_gate img_clks[] = {
  26         GATE_IMG(CLK_IMG_LARB5, "imgsys_larb5", "img_sel", 0),
  27         GATE_IMG(CLK_IMG_LARB6, "imgsys_larb6", "img_sel", 1),
  28         GATE_IMG(CLK_IMG_DIP, "imgsys_dip", "img_sel", 2),
  29         GATE_IMG(CLK_IMG_MFB, "imgsys_mfb", "img_sel", 6),
  30         GATE_IMG(CLK_IMG_WPE_A, "imgsys_wpe_a", "img_sel", 7),
  31 };
  32
  33 static const struct mtk_clk_desc img_desc = {
  34         .clks = img_clks,
  35         .num_clks = ARRAY_SIZE(img_clks),
  36 };
  37
  38 static const struct of_device_id of_match_clk_mt6779_img[] = {
  39         {
  40                 .compatible = "mediatek,mt6779-imgsys",
  41                 .data = &img_desc,
  42         }, {
  43                 /* sentinel */
  44         }
  45 };
  46 MODULE_DEVICE_TABLE(of, of_match_clk_mt6779_img);
  47
  48 static struct platform_driver clk_mt6779_img_drv = {
  49         .probe = mtk_clk_simple_probe,
  50         .remove = mtk_clk_simple_remove,
  51         .driver = {
  52                 .name = "clk-mt6779-img",
  53                 .of_match_table = of_match_clk_mt6779_img,
  54         },
  55 };
  56
  57 module_platform_driver(clk_mt6779_img_drv);
  58
  59 MODULE_DESCRIPTION("MediaTek MT6779 imgsys clocks driver");
  60 MODULE_LICENSE("GPL");