1 /* 2 * clk-max77686.c - Clock driver for Maxim 77686 3 * 4 * Copyright (C) 2012 Samsung Electornics 5 * Jonghwa Lee <jonghwa3.lee@samsung.com> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or (at your 10 * option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 * 21 */ 22 23 #include <linux/kernel.h> 24 #include <linux/slab.h> 25 #include <linux/err.h> 26 #include <linux/module.h> 27 #include <linux/platform_device.h> 28 #include <linux/mfd/max77686.h> 29 #include <linux/mfd/max77686-private.h> 30 #include <linux/clk-provider.h> 31 #include <linux/mutex.h> 32 #include <linux/clkdev.h> 33 34 #include <dt-bindings/clock/maxim,max77686.h> 35 #include "clk-max-gen.h" 36 37 static struct clk_init_data max77686_clks_init[MAX77686_CLKS_NUM] = { 38 [MAX77686_CLK_AP] = { 39 .name = "32khz_ap", 40 .ops = &max_gen_clk_ops, 41 .flags = CLK_IS_ROOT, 42 }, 43 [MAX77686_CLK_CP] = { 44 .name = "32khz_cp", 45 .ops = &max_gen_clk_ops, 46 .flags = CLK_IS_ROOT, 47 }, 48 [MAX77686_CLK_PMIC] = { 49 .name = "32khz_pmic", 50 .ops = &max_gen_clk_ops, 51 .flags = CLK_IS_ROOT, 52 }, 53 }; 54 55 static int max77686_clk_probe(struct platform_device *pdev) 56 { 57 struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); 58 59 return max_gen_clk_probe(pdev, iodev->regmap, MAX77686_REG_32KHZ, 60 max77686_clks_init, MAX77686_CLKS_NUM); 61 } 62 63 static int max77686_clk_remove(struct platform_device *pdev) 64 { 65 return max_gen_clk_remove(pdev, MAX77686_CLKS_NUM); 66 } 67 68 static const struct platform_device_id max77686_clk_id[] = { 69 { "max77686-clk", 0}, 70 { }, 71 }; 72 MODULE_DEVICE_TABLE(platform, max77686_clk_id); 73 74 static struct platform_driver max77686_clk_driver = { 75 .driver = { 76 .name = "max77686-clk", 77 }, 78 .probe = max77686_clk_probe, 79 .remove = max77686_clk_remove, 80 .id_table = max77686_clk_id, 81 }; 82 83 module_platform_driver(max77686_clk_driver); 84 85 MODULE_DESCRIPTION("MAXIM 77686 Clock Driver"); 86 MODULE_AUTHOR("Jonghwa Lee <jonghwa3.lee@samsung.com>"); 87 MODULE_LICENSE("GPL"); 88