LXR linux/drivers/clk/mediatek/clk-mt6765-vcodec.c

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * Copyright (c) 2018 MediaTek Inc.
   4 * Author: Owen Chen <owen.chen@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/mt6765-clk.h>
  14
  15static const struct mtk_gate_regs venc_cg_regs = {
  16        .set_ofs = 0x4,
  17        .clr_ofs = 0x8,
  18        .sta_ofs = 0x0,
  19};
  20
  21#define GATE_VENC(_id, _name, _parent, _shift) {        \
  22                .id = _id,                              \
  23                .name = _name,                          \
  24                .parent_name = _parent,                 \
  25                .regs = &venc_cg_regs,                  \
  26                .shift = _shift,                        \
  27                .ops = &mtk_clk_gate_ops_setclr_inv,    \
  28        }
  29
  30static const struct mtk_gate venc_clks[] = {
  31        GATE_VENC(CLK_VENC_SET0_LARB, "venc_set0_larb", "mm_ck", 0),
  32        GATE_VENC(CLK_VENC_SET1_VENC, "venc_set1_venc", "mm_ck", 4),
  33        GATE_VENC(CLK_VENC_SET2_JPGENC, "jpgenc", "mm_ck", 8),
  34        GATE_VENC(CLK_VENC_SET3_VDEC, "venc_set3_vdec", "mm_ck", 12),
  35};
  36
  37static int clk_mt6765_vcodec_probe(struct platform_device *pdev)
  38{
  39        struct clk_onecell_data *clk_data;
  40        int r;
  41        struct device_node *node = pdev->dev.of_node;
  42
  43        clk_data = mtk_alloc_clk_data(CLK_VENC_NR_CLK);
  44
  45        mtk_clk_register_gates(node, venc_clks,
  46                               ARRAY_SIZE(venc_clks), clk_data);
  47
  48        r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  49
  50        if (r)
  51                pr_err("%s(): could not register clock provider: %d\n",
  52                       __func__, r);
  53
  54        return r;
  55}
  56
  57static const struct of_device_id of_match_clk_mt6765_vcodec[] = {
  58        { .compatible = "mediatek,mt6765-vcodecsys", },
  59        {}
  60};
  61
  62static struct platform_driver clk_mt6765_vcodec_drv = {
  63        .probe = clk_mt6765_vcodec_probe,
  64        .driver = {
  65                .name = "clk-mt6765-vcodec",
  66                .of_match_table = of_match_clk_mt6765_vcodec,
  67        },
  68};
  69
  70builtin_platform_driver(clk_mt6765_vcodec_drv);
  71