77 lines
2 KiB
C
77 lines
2 KiB
C
/* Copyright (c) 2017 MediaTek Inc.
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* Author: Kevin Chen <kevin-cw.chen@mediatek.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/clk-provider.h>
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#include <linux/platform_device.h>
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#include <dt-bindings/clock/mt6797-clk.h>
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#include "clk-mtk.h"
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#include "clk-gate.h"
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static const struct mtk_gate_regs img_cg_regs = {
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.set_ofs = 0x0004,
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.clr_ofs = 0x0008,
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.sta_ofs = 0x0000,
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};
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#define GATE_IMG(_id, _name, _parent, _shift) { \
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.id = _id, \
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.name = _name, \
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.parent_name = _parent, \
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.regs = &img_cg_regs, \
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.shift = _shift, \
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.ops = &mtk_clk_gate_ops_setclr, \
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}
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static const struct mtk_gate img_clks[] = {
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GATE_IMG(CLK_IMG_FDVT, "img_fdvt", "mm_sel", 11),
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GATE_IMG(CLK_IMG_DPE, "img_dpe", "mm_sel", 10),
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GATE_IMG(CLK_IMG_DIP, "img_dip", "mm_sel", 6),
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GATE_IMG(CLK_IMG_LARB6, "img_larb6", "mm_sel", 0),
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};
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static const struct of_device_id of_match_clk_mt6797_img[] = {
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{ .compatible = "mediatek,mt6797-imgsys", },
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{}
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};
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static int clk_mt6797_img_probe(struct platform_device *pdev)
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{
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struct clk_onecell_data *clk_data;
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int r;
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struct device_node *node = pdev->dev.of_node;
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clk_data = mtk_alloc_clk_data(CLK_IMG_NR);
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mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks),
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clk_data);
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r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
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if (r)
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dev_err(&pdev->dev,
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"could not register clock provider: %s: %d\n",
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pdev->name, r);
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return r;
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}
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static struct platform_driver clk_mt6797_img_drv = {
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.probe = clk_mt6797_img_probe,
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.driver = {
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.name = "clk-mt6797-img",
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.of_match_table = of_match_clk_mt6797_img,
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},
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};
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builtin_platform_driver(clk_mt6797_img_drv);
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