LXR linux/drivers/clk/mediatek/clk-mt2712-mfg.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Copyright (c) 2017 MediaTek Inc.
   4 * Author: Weiyi Lu <weiyi.lu@mediatek.com>
   5 */
   6
   7#include <linux/clk-provider.h>
   8#include <linux/platform_device.h>
   9
  10#include "clk-mtk.h"
  11#include "clk-gate.h"
  12
  13#include <dt-bindings/clock/mt2712-clk.h>
  14
  15static const struct mtk_gate_regs mfg_cg_regs = {
  16        .set_ofs = 0x4,
  17        .clr_ofs = 0x8,
  18        .sta_ofs = 0x0,
  19};
  20
  21#define GATE_MFG(_id, _name, _parent, _shift) { \
  22                .id = _id,                              \
  23                .name = _name,                          \
  24                .parent_name = _parent,                 \
  25                .regs = &mfg_cg_regs,                   \
  26                .shift = _shift,                        \
  27                .ops = &mtk_clk_gate_ops_setclr,        \
  28        }
  29
  30static const struct mtk_gate mfg_clks[] = {
  31        GATE_MFG(CLK_MFG_BG3D, "mfg_bg3d", "mfg_sel", 0),
  32};
  33
  34static int clk_mt2712_mfg_probe(struct platform_device *pdev)
  35{
  36        struct clk_onecell_data *clk_data;
  37        int r;
  38        struct device_node *node = pdev->dev.of_node;
  39
  40        clk_data = mtk_alloc_clk_data(CLK_MFG_NR_CLK);
  41
  42        mtk_clk_register_gates(node, mfg_clks, ARRAY_SIZE(mfg_clks),
  43                        clk_data);
  44
  45        r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  46
  47        if (r != 0)
  48                pr_err("%s(): could not register clock provider: %d\n",
  49                        __func__, r);
  50
  51        return r;
  52}
  53
  54static const struct of_device_id of_match_clk_mt2712_mfg[] = {
  55        { .compatible = "mediatek,mt2712-mfgcfg", },
  56        {}
  57};
  58
  59static struct platform_driver clk_mt2712_mfg_drv = {
  60        .probe = clk_mt2712_mfg_probe,
  61        .driver = {
  62                .name = "clk-mt2712-mfg",
  63                .of_match_table = of_match_clk_mt2712_mfg,
  64        },
  65};
  66
  67builtin_platform_driver(clk_mt2712_mfg_drv);
  68