LXR linux/drivers/clk/mediatek/clk-mt6779-venc.c

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * Copyright (c) 2019 MediaTek Inc.
   4 * Author: Wendell Lin <wendell.lin@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/mt6779-clk.h>
  14
  15static const struct mtk_gate_regs venc_cg_regs = {
  16        .set_ofs = 0x0004,
  17        .clr_ofs = 0x0008,
  18        .sta_ofs = 0x0000,
  19};
  20
  21#define GATE_VENC_I(_id, _name, _parent, _shift)                \
  22        GATE_MTK(_id, _name, _parent, &venc_cg_regs, _shift,    \
  23                &mtk_clk_gate_ops_setclr_inv)
  24
  25static const struct mtk_gate venc_clks[] = {
  26        GATE_VENC_I(CLK_VENC_GCON_LARB, "venc_larb", "venc_sel", 0),
  27        GATE_VENC_I(CLK_VENC_GCON_VENC, "venc_venc", "venc_sel", 4),
  28        GATE_VENC_I(CLK_VENC_GCON_JPGENC, "venc_jpgenc", "venc_sel", 8),
  29        GATE_VENC_I(CLK_VENC_GCON_GALS, "venc_gals", "venc_sel", 28),
  30};
  31
  32static const struct of_device_id of_match_clk_mt6779_venc[] = {
  33        { .compatible = "mediatek,mt6779-vencsys", },
  34        {}
  35};
  36
  37static int clk_mt6779_venc_probe(struct platform_device *pdev)
  38{
  39        struct clk_onecell_data *clk_data;
  40        struct device_node *node = pdev->dev.of_node;
  41
  42        clk_data = mtk_alloc_clk_data(CLK_VENC_GCON_NR_CLK);
  43
  44        mtk_clk_register_gates(node, venc_clks, ARRAY_SIZE(venc_clks),
  45                               clk_data);
  46
  47        return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  48}
  49
  50static struct platform_driver clk_mt6779_venc_drv = {
  51        .probe = clk_mt6779_venc_probe,
  52        .driver = {
  53                .name = "clk-mt6779-venc",
  54                .of_match_table = of_match_clk_mt6779_venc,
  55        },
  56};
  57
  58builtin_platform_driver(clk_mt6779_venc_drv);
  59