developer | 15adbbf | 2021-05-24 22:20:07 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2015 MediaTek Inc. |
| 3 | * Author: James Liao <jamesjj.liao@mediatek.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | */ |
| 14 | |
| 15 | #define pr_fmt(fmt) "[clk-bringup] " fmt |
| 16 | |
| 17 | #include <linux/clk.h> |
| 18 | #include <linux/clk-provider.h> |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/module.h> |
| 21 | #include <linux/of.h> |
| 22 | #include <linux/of_platform.h> |
| 23 | |
| 24 | static const struct of_device_id bring_up_id_table[] = { |
| 25 | { .compatible = "mediatek,clk-bring-up",}, |
| 26 | { .compatible = "mediatek,mt8163-bring-up",}, |
| 27 | { .compatible = "mediatek,mt8173-bring-up",}, |
| 28 | { }, |
| 29 | }; |
| 30 | MODULE_DEVICE_TABLE(of, bring_up_id_table); |
| 31 | |
| 32 | static int bring_up_probe(struct platform_device *pdev) |
| 33 | { |
developer | 2cdaeb1 | 2022-10-04 20:25:05 +0800 | [diff] [blame] | 34 | const int NR_CLKS = 400; |
developer | 15adbbf | 2021-05-24 22:20:07 +0800 | [diff] [blame] | 35 | char clk_name_buf[16]; |
| 36 | struct clk *clk; |
| 37 | int i, r; |
| 38 | |
| 39 | for (i = 0; i < NR_CLKS; i++) { |
| 40 | sprintf(clk_name_buf, "%d", i); |
| 41 | |
| 42 | clk = devm_clk_get(&pdev->dev, clk_name_buf); |
| 43 | if (!IS_ERR(clk)) { |
| 44 | r = clk_prepare_enable(clk); |
| 45 | if (r) |
| 46 | pr_debug("clk_prepare_enable(%s): %d\n", |
| 47 | __clk_get_name(clk), r); |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | return 0; |
| 52 | } |
| 53 | |
| 54 | static int bring_up_remove(struct platform_device *pdev) |
| 55 | { |
| 56 | return 0; |
| 57 | } |
| 58 | |
| 59 | static struct platform_driver bring_up = { |
| 60 | .probe = bring_up_probe, |
| 61 | .remove = bring_up_remove, |
| 62 | .driver = { |
| 63 | .name = "bring_up", |
| 64 | .owner = THIS_MODULE, |
| 65 | .of_match_table = bring_up_id_table, |
| 66 | }, |
| 67 | }; |
| 68 | |
| 69 | module_platform_driver(bring_up); |