94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2019 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 <linux/slab.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/mt6765-clk.h>
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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 pwr_stat = GATE_PWR_STAT(0x180, 0x184, INV_OFS, BIT(5), BIT(5));
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static const struct mtk_gate_regs img_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_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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.pwr_stat = &pwr_stat, \
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}
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static const struct mtk_gate img_clks[] __initconst = {
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GATE_IMG(CLK_IMG_LARB2, "img_larb2", "mm_ck", 0),/*use dummy*/
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GATE_IMG(CLK_IMG_DIP, "img_dip", "mm_ck", 2),
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GATE_IMG(CLK_IMG_FDVT, "img_fdvt", "mm_ck", 3),
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GATE_IMG(CLK_IMG_DPE, "img_dpe", "mm_ck", 4),
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GATE_IMG(CLK_IMG_RSC, "img_rsc", "mm_ck", 5),
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};
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static int clk_mt6765_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_CLK);
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mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks), 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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kfree(clk_data);
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pr_err("%s(): could not register clock provider: %d\n",
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__func__, r);
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}
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return r;
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}
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static const struct of_device_id of_match_clk_mt6765_img[] = {
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{ .compatible = "mediatek,mt6765-imgsys", },
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{}
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};
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static struct platform_driver clk_mt6765_img_drv = {
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.probe = clk_mt6765_img_probe,
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.driver = {
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.name = "clk-mt6765-img",
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.of_match_table = of_match_clk_mt6765_img,
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},
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};
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static int __init clk_mt6765_img_init(void)
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{
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return platform_driver_register(&clk_mt6765_img_drv);
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}
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static void __exit clk_mt6765_img_exit(void)
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{
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}
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postcore_initcall(clk_mt6765_img_init);
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module_exit(clk_mt6765_img_exit);
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MODULE_LICENSE("GPL");
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