clk/mediatek/clk-mt8167-img.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 /*
0003  * Copyright (c) 2020 MediaTek Inc.
0004  * Copyright (c) 2020 BayLibre, SAS
0005  * Author: James Liao <jamesjj.liao@mediatek.com>
0006  *         Fabien Parent <fparent@baylibre.com>
0007  */
0008
0009 #include <linux/clk-provider.h>
0010 #include <linux/of.h>
0011 #include <linux/of_address.h>
0012 #include <linux/of_device.h>
0013 #include <linux/platform_device.h>
0014
0015 #include "clk-mtk.h"
0016 #include "clk-gate.h"
0017
0018 #include <dt-bindings/clock/mt8167-clk.h>
0019
0020 static const struct mtk_gate_regs img_cg_regs = {
0021     .set_ofs = 0x4,
0022     .clr_ofs = 0x8,
0023     .sta_ofs = 0x0,
0024 };
0025
0026 #define GATE_IMG(_id, _name, _parent, _shift) {     \
0027         .id = _id,              \
0028         .name = _name,              \
0029         .parent_name = _parent,         \
0030         .regs = &img_cg_regs,           \
0031         .shift = _shift,            \
0032         .ops = &mtk_clk_gate_ops_setclr,    \
0033     }
0034
0035 static const struct mtk_gate img_clks[] __initconst = {
0036     GATE_IMG(CLK_IMG_LARB1_SMI, "img_larb1_smi", "smi_mm", 0),
0037     GATE_IMG(CLK_IMG_CAM_SMI, "img_cam_smi", "smi_mm", 5),
0038     GATE_IMG(CLK_IMG_CAM_CAM, "img_cam_cam", "smi_mm", 6),
0039     GATE_IMG(CLK_IMG_SEN_TG, "img_sen_tg", "cam_mm", 7),
0040     GATE_IMG(CLK_IMG_SEN_CAM, "img_sen_cam", "smi_mm", 8),
0041     GATE_IMG(CLK_IMG_VENC, "img_venc", "smi_mm", 9),
0042 };
0043
0044 static void __init mtk_imgsys_init(struct device_node *node)
0045 {
0046     struct clk_hw_onecell_data *clk_data;
0047     int r;
0048
0049     clk_data = mtk_alloc_clk_data(CLK_IMG_NR_CLK);
0050
0051     mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks), clk_data);
0052
0053     r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
0054
0055     if (r)
0056         pr_err("%s(): could not register clock provider: %d\n",
0057             __func__, r);
0058
0059 }
0060 CLK_OF_DECLARE(mtk_imgsys, "mediatek,mt8167-imgsys", mtk_imgsys_init);