100 lines
1.9 KiB
C
100 lines
1.9 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2019 MediaTek Inc.
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*/
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#include <linux/device.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/of.h>
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#include <linux/clk.h>
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#include "ccci_config.h"
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#include "ccci_common_config.h"
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#include "ccci_core.h"
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#include "ccci_debug.h"
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#define TAG "ccci_md_clk"
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struct md_ao_clk {
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struct clk *clk_ref;
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unsigned char *clk_name;
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};
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static struct md_ao_clk md_ao_clk_tbl[] = {
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{NULL, "infra-aes-bclk-md"},
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{NULL, "infra-temp-share-md"},
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};
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static int md_clk_probe(struct platform_device *pdev)
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{
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int ret, i;
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struct clk *clk;
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unsigned char *name;
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for (i = 0; i < ARRAY_SIZE(md_ao_clk_tbl); i++) {
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name = md_ao_clk_tbl[i].clk_name;
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clk = devm_clk_get(&pdev->dev, name);
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if (IS_ERR(clk)) {
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CCCI_ERROR_LOG(-1, TAG, "%s n/a\r\n", name);
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continue;
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}
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md_ao_clk_tbl[i].clk_ref = clk;
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}
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for (i = 0; i < ARRAY_SIZE(md_ao_clk_tbl); i++) {
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if (!md_ao_clk_tbl[i].clk_ref) {
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CCCI_ERROR_LOG(-1, TAG, "%s skip\r\n", name);
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continue;
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}
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ret = clk_prepare_enable(md_ao_clk_tbl[i].clk_ref);
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if (ret) {
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name = md_ao_clk_tbl[i].clk_name;
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CCCI_ERROR_LOG(-1, TAG, "%s fail:%d\r\n", name, ret);
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} else {
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name = md_ao_clk_tbl[i].clk_name;
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CCCI_ERROR_LOG(-1, TAG, "en %s success\r\n", name);
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}
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return ret;
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}
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return 0;
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}
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static const struct of_device_id md_clk_of_ids[] = {
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{.compatible = "mediatek,ccci_md_clk"},
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{}
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};
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static struct platform_driver md_clk_driver = {
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.driver = {
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.name = "ccci_md_clk",
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.of_match_table = md_clk_of_ids,
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},
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.probe = md_clk_probe,
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};
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static int __init md_clk_init(void)
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{
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int ret;
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ret = platform_driver_register(&md_clk_driver);
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if (ret) {
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CCCI_ERROR_LOG(-1, TAG, "%s fail %d", __func__, ret);
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return ret;
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}
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return 0;
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}
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module_init(md_clk_init);
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MODULE_AUTHOR("ccci");
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MODULE_DESCRIPTION("ccci auxadc driver");
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MODULE_LICENSE("GPL");
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