drivers/clk/mediatek/clk-mt8183-img.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 img_cg_regs = {
  15         .set_ofs = 0x4,
  16         .clr_ofs = 0x8,
  17         .sta_ofs = 0x0,
  18 };
  19
  20 #define GATE_IMG(_id, _name, _parent, _shift)                   \
  21         GATE_MTK(_id, _name, _parent, &img_cg_regs, _shift,     \
  22                 &mtk_clk_gate_ops_setclr)
  23
  24 static const struct mtk_gate img_clks[] = {
  25         GATE_IMG(CLK_IMG_LARB5, "img_larb5", "img_sel", 0),
  26         GATE_IMG(CLK_IMG_LARB2, "img_larb2", "img_sel", 1),
  27         GATE_IMG(CLK_IMG_DIP, "img_dip", "img_sel", 2),
  28         GATE_IMG(CLK_IMG_FDVT, "img_fdvt", "img_sel", 3),
  29         GATE_IMG(CLK_IMG_DPE, "img_dpe", "img_sel", 4),
  30         GATE_IMG(CLK_IMG_RSC, "img_rsc", "img_sel", 5),
  31         GATE_IMG(CLK_IMG_MFB, "img_mfb", "img_sel", 6),
  32         GATE_IMG(CLK_IMG_WPE_A, "img_wpe_a", "img_sel", 7),
  33         GATE_IMG(CLK_IMG_WPE_B, "img_wpe_b", "img_sel", 8),
  34         GATE_IMG(CLK_IMG_OWE, "img_owe", "img_sel", 9),
  35 };
  36
  37 static int clk_mt8183_img_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_IMG_NR_CLK);
  43
  44         mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks),
  45                         clk_data);
  46
  47         return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  48 }
  49
  50 static const struct of_device_id of_match_clk_mt8183_img[] = {
  51         { .compatible = "mediatek,mt8183-imgsys", },
  52         {}
  53 };
  54
  55 static struct platform_driver clk_mt8183_img_drv = {
  56         .probe = clk_mt8183_img_probe,
  57         .driver = {
  58                 .name = "clk-mt8183-img",
  59                 .of_match_table = of_match_clk_mt8183_img,
  60         },
  61 };
  62
  63 builtin_platform_driver(clk_mt8183_img_drv);