LXR linux/drivers/clk/mediatek/clk-mt2701-img.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Copyright (c) 2014 MediaTek Inc.
   4 * Author: Shunli Wang <shunli.wang@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/mt2701-clk.h>
  14
  15static 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                .id = _id,                              \
  23                .name = _name,                          \
  24                .parent_name = _parent,                 \
  25                .regs = &img_cg_regs,                   \
  26                .shift = _shift,                        \
  27                .ops = &mtk_clk_gate_ops_setclr,        \
  28        }
  29
  30static const struct mtk_gate img_clks[] = {
  31        GATE_IMG(CLK_IMG_SMI_COMM, "img_smi_comm", "mm_sel", 0),
  32        GATE_IMG(CLK_IMG_RESZ, "img_resz", "mm_sel", 1),
  33        GATE_IMG(CLK_IMG_JPGDEC_SMI, "img_jpgdec_smi", "mm_sel", 5),
  34        GATE_IMG(CLK_IMG_JPGDEC, "img_jpgdec", "mm_sel", 6),
  35        GATE_IMG(CLK_IMG_VENC_LT, "img_venc_lt", "mm_sel", 8),
  36        GATE_IMG(CLK_IMG_VENC, "img_venc", "mm_sel", 9),
  37};
  38
  39static const struct of_device_id of_match_clk_mt2701_img[] = {
  40        { .compatible = "mediatek,mt2701-imgsys", },
  41        {}
  42};
  43
  44static int clk_mt2701_img_probe(struct platform_device *pdev)
  45{
  46        struct clk_onecell_data *clk_data;
  47        int r;
  48        struct device_node *node = pdev->dev.of_node;
  49
  50        clk_data = mtk_alloc_clk_data(CLK_IMG_NR);
  51
  52        mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks),
  53                                                clk_data);
  54
  55        r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  56        if (r)
  57                dev_err(&pdev->dev,
  58                        "could not register clock provider: %s: %d\n",
  59                        pdev->name, r);
  60
  61        return r;
  62}
  63
  64static struct platform_driver clk_mt2701_img_drv = {
  65        .probe = clk_mt2701_img_probe,
  66        .driver = {
  67                .name = "clk-mt2701-img",
  68                .of_match_table = of_match_clk_mt2701_img,
  69        },
  70};
  71
  72builtin_platform_driver(clk_mt2701_img_drv);
  73