100 lines
2.4 KiB
C
100 lines
2.4 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(25), BIT(25));
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static const struct mtk_gate_regs cam_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_CAM(_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 = &cam_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 cam_clks[] __initconst = {
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GATE_CAM(CLK_CAM_LARB3, "cam_larb3", "mm_ck", 0),/*use dummy*/
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GATE_CAM(CLK_CAM_DFP_VAD, "cam_dfp_vad", "mm_ck", 1),
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GATE_CAM(CLK_CAM, "cam", "mm_ck", 6),
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GATE_CAM(CLK_CAMTG, "camtg", "mm_ck", 7),
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GATE_CAM(CLK_CAM_SENINF, "cam_seninf", "mm_ck", 8),
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GATE_CAM(CLK_CAMSV0, "camsv0", "mm_ck", 9),
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GATE_CAM(CLK_CAMSV1, "camsv1", "mm_ck", 10),
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GATE_CAM(CLK_CAMSV2, "camsv2", "mm_ck", 11),
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GATE_CAM(CLK_CAM_CCU, "cam_ccu", "mm_ck", 12),
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};
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static int clk_mt6765_cam_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_CAM_NR_CLK);
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if (!clk_data)
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return -ENOMEM;
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mtk_clk_register_gates(node, cam_clks, ARRAY_SIZE(cam_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_cam[] = {
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{ .compatible = "mediatek,mt6765-camsys", },
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{}
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};
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static struct platform_driver clk_mt6765_cam_drv = {
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.probe = clk_mt6765_cam_probe,
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.driver = {
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.name = "clk-mt6765-cam",
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.of_match_table = of_match_clk_mt6765_cam,
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},
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};
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static int __init clk_mt6765_cam_init(void)
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{
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return platform_driver_register(&clk_mt6765_cam_drv);
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}
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static void __exit clk_mt6765_cam_exit(void)
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{
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}
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postcore_initcall(clk_mt6765_cam_init);
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module_exit(clk_mt6765_cam_exit);
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MODULE_LICENSE("GPL");
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