124 lines
2.7 KiB
C
124 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2021 MediaTek Inc.
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* Author: Owen Chen <owen.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/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/mt6893-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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/* get spm power status struct to register inside clk_data */
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static struct pwr_status ipe_pwr_stat = GATE_PWR_STAT(0x16C,
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0x170, INV_OFS, BIT(14), BIT(14));
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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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.pwr_stat = &ipe_pwr_stat, \
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}
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#define GATE_DUMMY(_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_dummy, \
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.pwr_stat = &ipe_pwr_stat, \
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}
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static const struct mtk_gate ipe_clks[] = {
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GATE_DUMMY(CLK_IPE_LARB19, "ipe_larb19",
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"ipe_ck"/* parent */, 0),
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GATE_DUMMY(CLK_IPE_LARB20, "ipe_larb20",
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"ipe_ck"/* parent */, 1),
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GATE_DUMMY(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_DPE, "ipe_dpe",
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"ipe_ck"/* parent */, 6),
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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 int clk_mt6893_ipe_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 init begin\n", __func__);
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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 init end\n", __func__);
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#endif
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return r;
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}
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static const struct of_device_id of_match_clk_mt6893_ipe[] = {
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{
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.compatible = "mediatek,mt6893-ipesys",
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.data = &ipe_mcd,
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},
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{}
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};
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static struct platform_driver clk_mt6893_ipe_drv = {
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.probe = clk_mt6893_ipe_probe,
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.driver = {
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.name = "clk-mt6893-ipe",
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.of_match_table = of_match_clk_mt6893_ipe,
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},
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};
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static int __init clk_mt6893_ipe_init(void)
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{
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return platform_driver_register(&clk_mt6893_ipe_drv);
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}
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static void __exit clk_mt6893_ipe_exit(void)
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{
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platform_driver_unregister(&clk_mt6893_ipe_drv);
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}
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postcore_initcall(clk_mt6893_ipe_init);
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module_exit(clk_mt6893_ipe_exit);
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MODULE_LICENSE("GPL");
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