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
  14 static const struct mtk_gate_regs vdec0_cg_regs = {
  15         .set_ofs = 0x0,
  16         .clr_ofs = 0x4,
  17         .sta_ofs = 0x0,
  18 };
  19
  20 static 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
  34 static 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
  41 static 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
  54 static const struct of_device_id of_match_clk_mt8183_vdec[] = {
  55         { .compatible = "mediatek,mt8183-vdecsys", },
  56         {}
  57 };
  58
  59 static 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
  67 builtin_platform_driver(clk_mt8183_vdec_drv);