drivers/clk/mediatek/clk-mt8173-vencsys.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2014 MediaTek Inc.
   4  * Copyright (c) 2022 Collabora Ltd.
   5  * Author: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
   6  */
   7
   8 #include <dt-bindings/clock/mt8173-clk.h>
   9 #include <linux/module.h>
  10 #include <linux/platform_device.h>
  11 #include "clk-gate.h"
  12 #include "clk-mtk.h"
  13
  14 static const struct mtk_gate_regs venc_cg_regs = {
  15         .set_ofs = 0x4,
  16         .clr_ofs = 0x8,
  17         .sta_ofs = 0x0,
  18 };
  19
  20 #define GATE_VENC(_id, _name, _parent, _shift)                  \
  21         GATE_MTK(_id, _name, _parent, &venc_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
  22
  23 static const struct mtk_gate venc_clks[] = {
  24         GATE_DUMMY(CLK_DUMMY, "venc_dummy"),
  25         GATE_VENC(CLK_VENC_CKE0, "venc_cke0", "mm_sel", 0),
  26         GATE_VENC(CLK_VENC_CKE1, "venc_cke1", "venc_sel", 4),
  27         GATE_VENC(CLK_VENC_CKE2, "venc_cke2", "venc_sel", 8),
  28         GATE_VENC(CLK_VENC_CKE3, "venc_cke3", "venc_sel", 12),
  29 };
  30
  31 static const struct mtk_gate venclt_clks[] = {
  32         GATE_DUMMY(CLK_DUMMY, "venclt_dummy"),
  33         GATE_VENC(CLK_VENCLT_CKE0, "venclt_cke0", "mm_sel", 0),
  34         GATE_VENC(CLK_VENCLT_CKE1, "venclt_cke1", "venclt_sel", 4),
  35 };
  36
  37 static const struct mtk_clk_desc venc_desc = {
  38         .clks = venc_clks,
  39         .num_clks = ARRAY_SIZE(venc_clks),
  40 };
  41
  42 static const struct mtk_clk_desc venc_lt_desc = {
  43         .clks = venclt_clks,
  44         .num_clks = ARRAY_SIZE(venclt_clks),
  45 };
  46
  47 static const struct of_device_id of_match_clk_mt8173_vencsys[] = {
  48         { .compatible = "mediatek,mt8173-vencsys", .data = &venc_desc },
  49         { .compatible = "mediatek,mt8173-vencltsys", .data = &venc_lt_desc },
  50         { /* sentinel */ }
  51 };
  52 MODULE_DEVICE_TABLE(of, of_match_clk_mt8173_vencsys);
  53
  54 static struct platform_driver clk_mt8173_vencsys_drv = {
  55         .driver = {
  56                 .name = "clk-mt8173-vencsys",
  57                 .of_match_table = of_match_clk_mt8173_vencsys,
  58         },
  59         .probe = mtk_clk_simple_probe,
  60         .remove = mtk_clk_simple_remove,
  61 };
  62 module_platform_driver(clk_mt8173_vencsys_drv);
  63
  64 MODULE_DESCRIPTION("MediaTek MT8173 vencsys clocks driver");
  65 MODULE_LICENSE("GPL");