drivers/clk/mediatek/clk-mt8188-imp_iic_wrap.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 <linux/clk-provider.h>
   8 #include <linux/mod_devicetable.h>
   9 #include <linux/platform_device.h>
  10
  11 #include <dt-bindings/clock/mediatek,mt8188-clk.h>
  12
  13 #include "clk-gate.h"
  14 #include "clk-mtk.h"
  15
  16 static const struct mtk_gate_regs imp_iic_wrap_cg_regs = {
  17         .set_ofs = 0xe08,
  18         .clr_ofs = 0xe04,
  19         .sta_ofs = 0xe00,
  20 };
  21
  22 #define GATE_IMP_IIC_WRAP(_id, _name, _parent, _shift)                  \
  23         GATE_MTK_FLAGS(_id, _name, _parent, &imp_iic_wrap_cg_regs, _shift,                      \
  24                 &mtk_clk_gate_ops_setclr, CLK_OPS_PARENT_ENABLE)
  25
  26 static const struct mtk_gate imp_iic_wrap_c_clks[] = {
  27         GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_C_AP_CLOCK_I2C0,
  28                           "imp_iic_wrap_c_ap_clock_i2c0", "top_i2c", 0),
  29         GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_C_AP_CLOCK_I2C2,
  30                           "imp_iic_wrap_c_ap_clock_i2c2", "top_i2c", 1),
  31         GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_C_AP_CLOCK_I2C3,
  32                           "imp_iic_wrap_c_ap_clock_i2c3", "top_i2c", 2),
  33 };
  34
  35 static const struct mtk_gate imp_iic_wrap_w_clks[] = {
  36         GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_W_AP_CLOCK_I2C1,
  37                           "imp_iic_wrap_w_ap_clock_i2c1", "top_i2c", 0),
  38         GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_W_AP_CLOCK_I2C4,
  39                           "imp_iic_wrap_w_ap_clock_i2c4", "top_i2c", 1),
  40 };
  41
  42 static const struct mtk_gate imp_iic_wrap_en_clks[] = {
  43         GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_EN_AP_CLOCK_I2C5,
  44                           "imp_iic_wrap_en_ap_clock_i2c5", "top_i2c", 0),
  45         GATE_IMP_IIC_WRAP(CLK_IMP_IIC_WRAP_EN_AP_CLOCK_I2C6,
  46                           "imp_iic_wrap_en_ap_clock_i2c6", "top_i2c", 1),
  47 };
  48
  49 static const struct mtk_clk_desc imp_iic_wrap_c_desc = {
  50         .clks = imp_iic_wrap_c_clks,
  51         .num_clks = ARRAY_SIZE(imp_iic_wrap_c_clks),
  52 };
  53
  54 static const struct mtk_clk_desc imp_iic_wrap_w_desc = {
  55         .clks = imp_iic_wrap_w_clks,
  56         .num_clks = ARRAY_SIZE(imp_iic_wrap_w_clks),
  57 };
  58
  59 static const struct mtk_clk_desc imp_iic_wrap_en_desc = {
  60         .clks = imp_iic_wrap_en_clks,
  61         .num_clks = ARRAY_SIZE(imp_iic_wrap_en_clks),
  62 };
  63
  64 static const struct of_device_id of_match_clk_mt8188_imp_iic_wrap[] = {
  65         { .compatible = "mediatek,mt8188-imp-iic-wrap-c", .data = &imp_iic_wrap_c_desc },
  66         { .compatible = "mediatek,mt8188-imp-iic-wrap-w", .data = &imp_iic_wrap_w_desc },
  67         { .compatible = "mediatek,mt8188-imp-iic-wrap-en", .data = &imp_iic_wrap_en_desc },
  68         { /* sentinel */ }
  69 };
  70 MODULE_DEVICE_TABLE(of, of_match_clk_mt8188_imp_iic_wrap);
  71
  72 static struct platform_driver clk_mt8188_imp_iic_wrap_drv = {
  73         .probe = mtk_clk_simple_probe,
  74         .remove = mtk_clk_simple_remove,
  75         .driver = {
  76                 .name = "clk-mt8188-imp_iic_wrap",
  77                 .of_match_table = of_match_clk_mt8188_imp_iic_wrap,
  78         },
  79 };
  80
  81 module_platform_driver(clk_mt8188_imp_iic_wrap_drv);
  82
  83 MODULE_DESCRIPTION("MediaTek MT8188 I2C Wrapper clocks driver");
  84 MODULE_LICENSE("GPL");