100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2022 MediaTek Inc.
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* Author: Chuan-Wen Chen <chuan-wen.chen@mediatek.com>
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*/
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#include <linux/clk-provider.h>
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#include <linux/module.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include "clk-mtk.h"
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#include "clk-gate.h"
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#include <dt-bindings/clock/mt6835-clk.h>
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#define MT_CCF_BRINGUP 1
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/* Regular Number Definition */
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#define INV_OFS -1
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#define INV_BIT -1
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static const struct mtk_gate_regs ipe_cg_regs = {
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.set_ofs = 0x4,
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.clr_ofs = 0x8,
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.sta_ofs = 0x0,
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};
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#define GATE_IPE(_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 = &ipe_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 ipe_clks[] = {
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GATE_IPE(CLK_IPE_LARB19, "ipe_larb19",
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"ipe_ck"/* parent */, 0),
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GATE_IPE(CLK_IPE_LARB20, "ipe_larb20",
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"ipe_ck"/* parent */, 1),
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GATE_IPE(CLK_IPE_SMI_SUBCOM, "ipe_smi_subcom",
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"ipe_ck"/* parent */, 2),
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GATE_IPE(CLK_IPE_FD, "ipe_fd",
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"ipe_ck"/* parent */, 3),
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GATE_IPE(CLK_IPE_FE, "ipe_fe",
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"ipe_ck"/* parent */, 4),
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GATE_IPE(CLK_IPE_RSC, "ipe_rsc",
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"ipe_ck"/* parent */, 5),
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GATE_IPE(CLK_IPE_GALS, "ipe_gals",
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"ipe_ck"/* parent */, 8),
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};
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static const struct mtk_clk_desc ipe_mcd = {
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.clks = ipe_clks,
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.num_clks = CLK_IPE_NR_CLK,
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};
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static const struct of_device_id of_match_clk_mt6835_img[] = {
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{
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.compatible = "mediatek,mt6835-ipesys",
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.data = &ipe_mcd,
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}, {
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/* sentinel */
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}
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};
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static int clk_mt6835_img_grp_probe(struct platform_device *pdev)
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{
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int r;
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#if MT_CCF_BRINGUP
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pr_notice("%s: %s init begin\n", __func__, pdev->name);
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#endif
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r = mtk_clk_simple_probe(pdev);
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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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#if MT_CCF_BRINGUP
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pr_notice("%s: %s init end\n", __func__, pdev->name);
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#endif
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return r;
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}
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static struct platform_driver clk_mt6835_img_drv = {
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.probe = clk_mt6835_img_grp_probe,
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.driver = {
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.name = "clk-mt6835-img",
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.of_match_table = of_match_clk_mt6835_img,
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},
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};
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module_platform_driver(clk_mt6835_img_drv);
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MODULE_LICENSE("GPL");
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