LXR linux/drivers/clk/mediatek/clk-mt8183-vdec.c

   1// SPDX-License-Identifier: GPL-2.0
   2//
   3// Copyright (c) 2018 MediaTek Inc.
   4// Author: Weiyi Lu <weiyi.lu@mediatek.com>
   5
   6#include <linux/clk-provider.h>
   7#include <linux/platform_device.h>
   8
   9#include "clk-mtk.h"
  10#include "clk-gate.h"
  11
  12#include <dt-bindings/clock/mt8183-clk.h>
  13
  14static const struct mtk_gate_regs vdec0_cg_regs = {
  15        .set_ofs = 0x0,
  16        .clr_ofs = 0x4,
  17        .sta_ofs = 0x0,
  18};
  19
  20static const struct mtk_gate_regs vdec1_cg_regs = {
  21        .set_ofs = 0x8,
  22        .clr_ofs = 0xc,
  23        .sta_ofs = 0x8,
  24};
  25
  26#define GATE_VDEC0_I(_id, _name, _parent, _shift)               \
  27        GATE_MTK(_id, _name, _parent, &vdec0_cg_regs, _shift,   \
  28                &mtk_clk_gate_ops_setclr_inv)
  29
  30#define GATE_VDEC1_I(_id, _name, _parent, _shift)               \
  31        GATE_MTK(_id, _name, _parent, &vdec1_cg_regs, _shift,   \
  32                &mtk_clk_gate_ops_setclr_inv)
  33
  34static const struct mtk_gate vdec_clks[] = {
  35        /* VDEC0 */
  36        GATE_VDEC0_I(CLK_VDEC_VDEC, "vdec_vdec", "mm_sel", 0),
  37        /* VDEC1 */
  38        GATE_VDEC1_I(CLK_VDEC_LARB1, "vdec_larb1", "mm_sel", 0),
  39};
  40
  41static int clk_mt8183_vdec_probe(struct platform_device *pdev)
  42{
  43        struct clk_onecell_data *clk_data;
  44        struct device_node *node = pdev->dev.of_node;
  45
  46        clk_data = mtk_alloc_clk_data(CLK_VDEC_NR_CLK);
  47
  48        mtk_clk_register_gates(node, vdec_clks, ARRAY_SIZE(vdec_clks),
  49                        clk_data);
  50
  51        return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  52}
  53
  54static const struct of_device_id of_match_clk_mt8183_vdec[] = {
  55        { .compatible = "mediatek,mt8183-vdecsys", },
  56        {}
  57};
  58
  59static struct platform_driver clk_mt8183_vdec_drv = {
  60        .probe = clk_mt8183_vdec_probe,
  61        .driver = {
  62                .name = "clk-mt8183-vdec",
  63                .of_match_table = of_match_clk_mt8183_vdec,
  64        },
  65};
  66
  67builtin_platform_driver(clk_mt8183_vdec_drv);
  68