drivers/clk/mediatek/clk-mt8167-img.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2020 MediaTek Inc.
   4  * Copyright (c) 2020 BayLibre, SAS
   5  * Author: James Liao <jamesjj.liao@mediatek.com>
   6  *         Fabien Parent <fparent@baylibre.com>
   7  */
   8
   9 #include <linux/clk-provider.h>
  10 #include <linux/of.h>
  11 #include <linux/of_address.h>
  12 #include <linux/of_device.h>
  13 #include <linux/platform_device.h>
  14
  15 #include "clk-mtk.h"
  16 #include "clk-gate.h"
  17
  18 #include <dt-bindings/clock/mt8167-clk.h>
  19
  20 static const struct mtk_gate_regs img_cg_regs = {
  21         .set_ofs = 0x4,
  22         .clr_ofs = 0x8,
  23         .sta_ofs = 0x0,
  24 };
  25
  26 #define GATE_IMG(_id, _name, _parent, _shift) {         \
  27                 .id = _id,                              \
  28                 .name = _name,                          \
  29                 .parent_name = _parent,                 \
  30                 .regs = &img_cg_regs,                   \
  31                 .shift = _shift,                        \
  32                 .ops = &mtk_clk_gate_ops_setclr,        \
  33         }
  34
  35 static const struct mtk_gate img_clks[] __initconst = {
  36         GATE_IMG(CLK_IMG_LARB1_SMI, "img_larb1_smi", "smi_mm", 0),
  37         GATE_IMG(CLK_IMG_CAM_SMI, "img_cam_smi", "smi_mm", 5),
  38         GATE_IMG(CLK_IMG_CAM_CAM, "img_cam_cam", "smi_mm", 6),
  39         GATE_IMG(CLK_IMG_SEN_TG, "img_sen_tg", "cam_mm", 7),
  40         GATE_IMG(CLK_IMG_SEN_CAM, "img_sen_cam", "smi_mm", 8),
  41         GATE_IMG(CLK_IMG_VENC, "img_venc", "smi_mm", 9),
  42 };
  43
  44 static void __init mtk_imgsys_init(struct device_node *node)
  45 {
  46         struct clk_onecell_data *clk_data;
  47         int r;
  48
  49         clk_data = mtk_alloc_clk_data(CLK_IMG_NR_CLK);
  50
  51         mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks), clk_data);
  52
  53         r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
  54
  55         if (r)
  56                 pr_err("%s(): could not register clock provider: %d\n",
  57                         __func__, r);
  58
  59 }
  60 CLK_OF_DECLARE(mtk_imgsys, "mediatek,mt8167-imgsys", mtk_imgsys_init);